leg site hole core section top interval depth (cm) bottom interval depth (cm) top of core depth(m) top of layer depth (m) bottom of layer depth (m) describer lithology color structures deformations due to drilling unusual occurrences minerals paleontology other observations hardness or induration z-coding 59 451 1 1 0.0 150.0 0.00 0.00 1.50 R MEDIUM SAND 10YR5/2-GREYISH BROWN,10YR6/4, 10YR5/3-BROWN GENERALLY 10YR5/2 AND 10YR6/4 IN COLOR,HOMOG. BUT VERY WELL SORTED,NO STRUCTURES SOUPY A FEW BLACK GRAVEL-SIZED FRAGS PRESENT REPRESENTING PUMICE FRAGS COVERED BY MN FILMS,OTHER BIG FRAGS INCLUDE 10YR5/3 UNCOVERED PUMICE (MAX DIM 1.5 CM DIA AVE 0.4 CM),ALSO GLASS FRAGS PUMICE,MN FILMS,GLASS VERY RICH IN FORAMS SOFT 11111221 59 451 1 2 0.0 150.0 0.00 1.50 3.00 R SAND SAME AS SECT. 1 HIGH. DIST. 5-45 CM,REST SOUPY SOME PUM. GRAINS DISPLAYING "CAULIFLOWER" MN -COATINGS PUMICE,MN-COATINGS SEE SECT#1 SOFT* 59 451 1 3 0.0 80.0 0.00 3.00 3.80 R SAND 2.5Y5/2-GREYISH BROWN 2.5Y5/2 MED. TO FINE SAND W/MORE CLAY AND SILT-SIZED MATERIAL (DIRTY SAND),SAND GRAINS VERY WELL SORTED,GRAINS LOOK SMALLER AS AN AVERAGE,VERY SHARP EROSIONAL BASAL CONTACT SLI. DEF 70-80 CM,MOD. DEF. 15-65 CM,HIGH DEF. 0-10 AND 65-70 CM SOFT* 59 451 1 3 80.0 107.0 0.00 3.80 4.07 R OOZE 2.5Y6/4-LT.YELLOWISH BROWN HOMOGENEOUS SLI. DEF. NUMEROUS FORAMS SOFT* 59 451 1 CC 0.0 20.0 0.00 4.21 4.31 R OOZE 2.5Y6/4 HOMOG. SLI.DEF NUM.FORAMS SAME AS BTM. SECTION 3* 59 451 2 1 0.0 150.0 5.00 5.00 6.50 R SAND 2.5Y5/2-GREYISH BROWN,2.5Y6/4 ALTERNATING LAYERS OF 2.5Y5/2 AND 2.5Y6/4,THE 6/4 SHOULD BE RICHER IN BIOGENOUS COMPONENTS AND THE 5/2 RICHER IN GLASS AND PUMICE,2.5Y5/2 MED. SAND AT 0-11 AND 87-117 CM,2.5Y6/4 FINE SAND 22-87 AND 117-150 CM, 11-22 CM IS 2.5Y5/2 MED. SAND BTM AND 2.5Y6/4 FINE TO SILT AT TOP MOD. DEF. MN PATCH 0-2 CM GLASS,PUMICE,MN SOFT* 59 451 2 2 0.0 150.0 5.00 6.50 8.00 R SAND 2.5Y5/2,2.5Y6/4,2.5Y6/5,2.5Y7/4 MED. SAND W/SLI. COLOR CHANGES (0-120 CM),2.5Y5/2 0-16 65-74 AND 95-120 CM,16-38 CM 2.5Y6/4,38-65 2.5Y6/5,74-95 CM 2.5Y7/4,120-150 CM HOMOG. 2.5Y7/4 FINE SAND MOD DEF. SOFT* 59 451 2 3 0.0 150.0 5.00 8.00 9.50 R SAND,OOZE 2.5Y6/2,2.5Y6/4,2.5Y4.5/2 0-26 CM 2.5Y6/2 MED. TO COARSE SAND,26-33 CM SILT TO FINE SAND-SIZED OOZE (2.5Y6/6),33-46 CM 2.5Y6/2 MED. SAND,46-50 CM 2.5Y4.5/2 SAND,50-91 CM 2.5Y6/2 MED. SAND W/ONE LAYER 2.5Y4.5/2 AT 71 CM,91-107 2.5Y4.5/2 MED. SAND, 107-150 CM MED. TO FINE 2.5Y6/2 SAND MOD. DEF. 0-33 CM,SLI. DEF 33-150 CM SOFT* 59 451 2 4 0.0 140.0 5.00 9.50 10.90 R FINE SAND 2.5Y7/4,2.5Y5/2 10YR4/3 0-83CM 2.5Y7/4,83-88 CM 2.5Y5/2,88-140CM 2.5Y7/4 MOD. DEF 0-15 AND 105- 140CM,SOUPY 70-85CM,REST HIGH. DEF. ONE BIG SCORIA CEOUS LAPILLI AT 135 CM (APPROX. 2X3.5CM AND 10YR4/3 COLOR) 140-150 CM WC SPLE SOFT* 59 451 2 5 0.0 100.0 5.00 11.00 12.00 R SAND,OOZE 2.5Y6/4,2.5Y4.5/2 0-38 CM 2.5Y6/4 SANDY OOZE,38-40 AND 80-92 CM 2.5Y4.5/2 OOZE (OR SAND),40-80 AND 92-100 CM 2.5Y6/4 SAND OR OOZE MOD DEF. GEOCHEMICAL SAMPLE 100-150 CM SOFT* 59 451 2 6 0.0 126.0 5.00 12.50 13.76 R OOZE 2.5Y6/2,2.5Y4.5/2 0-65 CM 2.5Y6/2 SANDY OOZE,65-126 CM 2.5Y4.5/2 SAND-SIZED OOZE MOD.DEF* 59 451 2 CC 0.0 20.0 5.00 13.86 13.96 R OOZE SAME AS SECT. 6* 59 451 3 1 0.0 150.0 14.50 14.50 16.00 R SAND-SIZED OOZE 2.5Y6/4,2.5Y4.5/2,2.5Y3/2 HOMOG. 2.5Y6/4 SAND-SIZED OOZE,34-70 CM MOTTLED INTENSELY IN 2.5Y4.5/2,84-86 CM LAYER OF SAND-SIZED 2.5Y3/2,2.5Y4.5/2 MOTTLES 93-105 AND 130-140 CM MOD. DEF.* 59 451 3 2 0.0 8.0 14.50 16.00 16.08 R SAND 2.5Y4.5/2 MOD. DEF. SOFT 11111221 59 451 3 2 8.0 150.0 14.50 16.08 17.50 R SAND-SIZED OOZE 2.5Y6/4,10YR3.5/2,2.5Y4.5/2 2.5Y6/4 SAND-SIZED OOZE,49-63 CM 10YR3.5/2 SAND-SIZE ASH LAYER,63-150 CM INTENSELY (50%) MOTTLED WITH 2.5Y4.5/2 MOD. DEF. MN COATED PUMICE FRAGMENT (1 CM DIA) AT 69 CM MN COATED PUM. FRAG AT 69 CM* 59 451 3 3 0.0 150.0 14.50 17.50 19.00 R SAND-SIZED OOZE 2.5Y6/4,2.5Y4.5/2 HOMOG. 2.5Y6/4 SND-SZD OOZE,SLI. MOTT. IN 2.5Y4.5/2 20-45 CM,MOTT. IN 2.5Y4.5/2 AT 126-130 AND 142-150 CM MOD. DEF. MN-COATED PUMICE FRAG (1 CM DIA) 77-78 CM MN-COATED PUMICE FRAG 11111221 59 451 3 4 0.0 150.0 14.50 19.00 20.50 R SAND-SIZED OOZE 2.5Y5/2,10YR5/4,2.5Y6/4 0-28 AND 112-150 CM IS 2.5Y5/2,28-112 CM IS 2.5Y6/4,50-52 CM IS 10YR5/4 DISTURBED SAND OOZE (UNDISTURBED?) PUM. FRAG. (1X2 CM) 22-23 CM PUMICE* 59 451 3 5 0.0 150.0 14.50 20.50 22.00 R SAND-SIZED OOZE? 2.5Y5/2,10YR3/1,2.5Y6/4 0-50 CM IS 2.5Y5/2 INTERVAL W/VERT. STREAKS AND MOTTLES OF 10YR3/1,50-150 CM IS 2.5Y6/4 W/MOTTLES OF 2.5Y5/2 AT 120-150 CM MOD. DEF.* 59 451 3 6 0.0 150.0 14.50 22.00 23.50 R OOZE 2.5Y6/4,2.5Y5/2,2.5Y7/4 0-40 CM 2.5Y6/4 WITH MOTTLES OF 2.5Y5/2,40-150 CM HOMOG. 2.5Y7/4 FINE SAND GRAIN-SIZED OOZE SLI. DEF.* 59 451 3 7 0.0 33.0 14.50 23.50 23.83 R FINE SAND GRAIN-SIZED OOZE 2.5Y7/4 HOMOG. SAME AS BOTTOM SECT.6* 59 451 3 CC 0.0 20.0 14.50 23.93 24.03 R OOZE 2.5Y7/4,2.5Y5/2 2.5Y7/4 OOZE WITH MOTTLES OF 2.5Y5/2 UNDISTURBED (?)* 59 451 4 1 0.0 150.0 24.00 24.00 25.50 R NANNO OOZE 2.5Y7/4-PALE YELLOW,2.5Y5/2 2-150 CM HOMOG. 2.5Y7/4 NANNOOZE,40-110 CM SLI. (15%) MOTT IN IRREGULAR PATTERNS OF 2.5Y5/2 SLI. DEF 0-50 CM ,MOD. DEF. 50-150 CM LITHIFIED SUBSPHERICAL PUMICE CONCRETIONS (2 CM DIA) COVERED BY MN "CAULIFLOWER" PUMICE CONCRETIONS COVERED BY MN "CAULIFLOWER"* 59 451 4 2 0.0 150.0 24.00 25.50 27.00 R NANNO OOZE 2.5Y7/4-PALE YELLOW,10YR8/4 0-30 AND 73-150 CM 2.5Y7/4 HOMOG. NANNO OOZE,30-73 CM HOMOG. 10YR8/4 NANNOOZE SLI. DEF. NANNOS* 59 451 4 3 0.0 150.0 24.00 27.00 28.50 R NANNO OOZE 10YR8/4,2.5Y7/4 0-63 CM HOMOG. 10YR8/4 NANNOOZE,LOWER CONTACT SHARP AND UNDULATE, 63-130 CM HOMOG. 2.5Y7/4 NANNOOZE,130-150 CM HOMOG. 10YR8/4 NANNOOZE SLI. DEF. NANNOS* 59 451 4 4 0.0 150.0 24.00 28.50 30.00 R NANNO OOZE 10YR8/4,2.5Y7/4 0-86 CM HOMOGENEOUS 10YR8/4,86-150 CM HOMOG. 2.5Y7/4 SLI. DEF. 0-110 CM,SOUPY 110-150 CM* 59 451 4 5 0.0 150.0 24.00 30.00 31.50 R NANNO OOZE 2.5Y7/4,10YR5/1,10YR8/4 0-25 CM 2.5Y7/4 NANNOOZE,25-32 CM MED. SAND-SIZED LAYER WITH GREAT ABUNDANCE OF BLACK GRAINS (GEN. COLOR 10YR5/1 ),32-150 CM 10YR8/4 NANNOOZE SOUPY 0-20 CM,HIGH. DEF. 20-50 AND 135-150 CM,MOD. DEF. 50-135 CM NANNOS* 59 451 4 6 0.0 150.0 24.00 31.50 33.00 R SAND-SIZED FORAMINIFERAL OOZE 2.5Y6/4,-BLACK HOMOG. 2.5Y6/4 FORAM OOZE,PRESENCE OF VERY NUMEROUS BLACK GRAINS OF MED. TO FINE SAND-SIZE MOD. DEF BLACK SCORIACEOUS PUM. FRAG COVERED BY MN COATING AT 4-6 CM PUMICE COVERED BY MN COAT. SAND-SIZED WHITE BIOGENOUS REMAINS (FORAMS) AND SILT-SIZED (NANNOS)* 59 451 4 7 0.0 30.0 24.00 33.00 33.30 R FORAM OOZE AS SECT.6 MOD. DEF.* FORAMS 59 451 4 CC 0.0 20.0 24.00 33.40 33.50 R FORAM OOZE 2.5Y6/4 SAME AS SECT.6 UNDEFORMED FORAMS* 59 451 5 1 0.0 150.0 33.50 33.50 35.00 R FORAM OOZE 2.5Y6/2,-BLACK,2.5Y7/4 HOMOG. FORAM OOZE,0-85 CM 2.5Y6/2 OOZE VERY RICH IN BLACK GRAINS (MICRO MN NODS?),85-95 CM 2.5Y7/4 ALMOST FREE OF BLACK GRAINS,95-150 CM AS 0-85 CM MOD. DEF. 0-77 AND 141-150 CM,REST SLI. DEF. 0-85 CM BIG ROUNDED CONCRETIONS UP TO 1 CM DIA MADE OF "CAULIFLOWER" MN AROUND PUMICE? FRAGS,95-150 CM SAME AS 0-85 WITH CONCRETIONS UP TO 3 CM DIA (5 COUNTED) MN,PUMICE? FORAMS SOFT* 59 451 5 2 0.0 73.0 33.50 35.00 35.73 R FORAM OOZE 2.5Y6/2,-BLACK VERY RICH IN BLACK GRAINS SLI. DEF. BIG ROUNDED CONCRETIONS UP TO 3 CM DIA (MN COVERING PUMICE?),BLACK GRAINS MN COVERING PUMICE? FORAMS SAME AS BTM SECT.1* 59 451 5 2 73.0 150.0 33.50 35.73 36.50 R ASH AND OOZE 2.5Y5/0,2.5Y7/0,2.5Y8/8,-BLACK, 5Y5/6,5Y4/4,5Y8/2,5Y7/0 73-76 CM 2.5Y5/0 FINE GRAINED ASH LAYER,76-97 CM 2.5Y7/0 LAYER OF ASH AND CALCAREOUS REMAINS,97-121 CM 2.5Y8/8 FINE ASH LAYER, 121-125 CM LAYER OF BLACK MN ENCRUSTED ROUNDED PUM, 125-130 CM 5Y5/6 SILT-SIZED ASH LAYER,130-134 CM SILT-SIZED ASH LAYER PRESENTLY AS HARD ANGULAR FRAGS OF 1 CM DIA--PREVIOUSLY LIKELY A LITHIFIED LAYER, 134-150 CM 5Y8/2 OOZE + ASH SLI. DEF 121-125 CM LAYER MADE OF MN ENCRUSTED ROUNDED PUMICE (UP TO 1.5 CM DIA)--BLACK,134-150 CM SOME 5Y7/0 PUMICE FRAGS-- FRESH AND ANGULAR (LARGEST IS 3.5X4X9 CM) MN,PUM.* 59 451 5 3 0.0 140.0 33.50 36.50 37.90 R ASH 5Y7/3,5Y4/3,5Y6/1,5Y7/1,5Y4/2,5Y3/2,5Y5/2 0-12 CM 5Y7/3 SEMILITHIFIED (NOW FRACTURED) ASH LAYER,37-49 CM ASH LAYER (5Y7/1),49-64 CM 5Y4/2 LITHIFIED SILT-SIZED ASH,64-103 CM 5Y3/2 SOFT ASH LAYER--INTENSELY MOTTLED (30%) IN 5Y5/2 ASH (MAINLY AT 64-84 CM--UNIFORM BELOW),103-140 CM 5Y5/2 ASH (+ NANNOFOSSILS?) HOMOG. INTERVAL--SLI. MOTTLED IN 5Y3/2 AT 125-140 CM SLI. DEF. 12-21 CM FRACTURED LAYER OF FRAGMENTS (UP TO 2X1 CM) OF ALTERED 5Y4/3 PUMICE,21-37 CM 5Y6/1 LAYER OF PUM. AND GLASS FRAGS- -MAINLY ROUNDED (UP TO 2X1 CM SIZE),21-37 CM ROUNDED PUMICE FRAGS (UP TO 0.8X1.5 CM) PUMICE,GLASS NANNOFOSSILS? SOFT* 59 451 5 4 0.0 140.0 33.50 38.00 39.40 R ASH 5Y5/2,5Y3/2,5Y4/2,5Y6/2 0-16 CM 5Y5/2 ASH INTENSELY MOTTLED IN 5Y3/2,16-23 CM 5Y3/2 LITHIFIED ASH LAYER (NOW DRILLING PIECES),23-53 CM 5Y4/2 SOFT ASH WITH MOTTLES OF 5Y5/2 AT 23-33 CM,53-55 CM LITHIFIED 5Y3/2 ASH LAYER,55-92 CM HOMOG 5Y5/2 ASH LAYER,92-120 CM SOFT 5Y4/2 ASH INTERVAL WITH LITHIFIED INTERLAYERS OF 5Y3/2 ASH AT 102-103 AND 110-113 CM,120-140 CM 5Y6/2 DRILLING GOUGE MOD. DEF. 0-120 CM,DRLG. GOUGE 120-140 CM SOFT + LITH.* 59 451 5 CC 0.0 20.0 33.50 39.50 39.60 R ASH? 5Y6/2 SAME AS BTM SECT.4 DRILLING GOUGE SOFT* 59 451 6 1 0.0 150.0 43.00 43.00 44.50 R ASH,NANNOFOSSILS 5Y7/4,5Y5/2,5Y3/2,5Y6/2,5Y4/2 3-28 CM SOFT ASH LAYER (5Y5/2),28-30 CM LITHIFIED ASH LAYER (5Y3/2),30-115 CM 5Y6/2 ASH + NANNOFOSSILS LAYER WITH LAYERS OF 5Y3/2 (AT 50-52 59-62 AND 100- 105 CM),115-148 CM 5Y4/2 ASH LAYER,148-150 CM 5Y3/2 ASH LAYER SLI. DEF. 0-3 CM LAYER OF 5Y7/4 PUM. FRAGS- UP TO 2X3 CM- ROUNDED PUMICE NANNOS SOFT 0-28,30-50,52-59,62-100,AND 105-148 CM,REST IS LITHIFIED* 59 451 6 2 0.0 150.0 43.00 44.50 46.00 R PUMICE,ASH 5Y3/2,5Y6/2,5Y5/1,5Y7/1,5Y6/4,5Y6/1 0-2 CM 5Y3/2 ASH,2-12 CM 5Y6/2 ASH + NANNOS INT., 12-20 CM 5Y5/1 SILT-SIZED ASH,20-134 CM 5Y7/1 PUMICE (UP TO 3X5 CM) IN ANGULAR FRAGS AND ASH INTERVAL-- PUM. DECREASES DOWNWARD AND FINE ASHES INCREASE (PUM FRAGS/ASH = 3/1 IN UPPER AND 1/1 IN LOWER PORTION), 134-145 CM 5Y6/4 PUM FRAGS + ASH LAYER (PUM. DIM. UP TO 3X4 CM)--PUMICES ARE PREDOMINANT,145-150 CM 5Y6/1 FINE GRAINED ASH INTERVAL SLI. DEF. 0-20 CM, MOD. DEF. 20-30 CM,HIGH. DEF. 30-70 AND 140-150 CM, SOUPY (BRECCIATED) 70-140 CM MN BLEBS ON PUMICES (NUMEROUS) PUMICE,MN BLEBS NANNOS SOFT 2-20 CM, LITHIFIED 0-2 CM,REST UNKNOWN* 59 451 6 3 0.0 100.0 43.00 46.00 47.00 R SAND,VOLC.GLAS,PUMICE 5Y6/1 VERY HOMOGENEOUS 5Y6/1 MED. SAND VOLCANIC GLASS AND PUMICE,SOME BLACK GRAINS (MN?) SLI. DEF. VOLC.GLASS,PUMICE 110-150 CM GEOCHEMICAL SAMPLE* SOFT 59 451 6 4 0.0 36.0 43.00 47.50 47.86 R SAND 5Y8/4,5Y6/1 SAME AS SECT. 3 SLI. DEF. 0-12 CM,MOD. DEF. 12-36 CM 2 VERY BIG AND ANGULAR 5Y8/4 PUMICE FRAGS (7 AND 15 CM) W/MAX DIM. 3X5 CM VOLC. GLASS,PUMICE SOFT 11110000.3651 59 451 6 4 36.0 75.0 43.00 47.86 48.25 R TUFF 5Y5/3 FINE-GRAINED,MASSIVE MOD. DEF. TUFF LITHIFIED* 59 451 6 4 75.0 104.0 43.00 48.25 48.54 R ASH 5Y3/1 MED. SAND-SIZED MOD. DEF. 75-80 CM ,HIGH. DEF. 80-104 CM SOFT* 59 451 6 4 104.0 150.0 43.00 48.54 49.00 R VOLCANIC ASH 5Y6/1 SAND-SIZED VOLC. ASH AS IN 0-36 CM THIS CORE W/O PUMICES HIGH. DEF. SOFT* 59 451 6 5 0.0 150.0 43.00 49.00 50.50 R VOLC. ASH 5Y6/1,5Y7/1 SAME AS BTM SECT. 4-WITH PUMICE HIGH. DEF. 0-110 CM,BRECCIA (SOUPY) 110-50 CM 5Y7/1 PUM. FRAGS INTERVALS AND CLUSTERS (40-55 AND 96-105 CM),AVE. 0.4 CM DIA,RATHER ROUNDED,MAX. DIM. 1 CM PUMICE SOFT* 59 451 6 6 0.0 150.0 43.00 50.50 52.00 R VOLC. ASH 5Y6/1 SAND-SIZED VOLC.ASH AS PREVIOU S SECT.,HOMOG,NO OBVIOUS BIG PUMICES SOUPY SOFT* 59 451 6 7 0.0 44.0 43.00 52.00 52.44 R ASH 5Y5/1,-BLACK SAND-SIZED,HOMOGENIZED HIGH DEF. 1CM DIA BLACK PUM. FRAG COVERED BY MN COAT. AT 40 CM PUMICE,MN SOFT* 59 451 6 CC 0.0 20.0 43.00 52.55 52.65 R PUMICE 5Y6/1 FRAGS. OF PUM (MOSTLY ROUNDED 0.3-0.4 CM AVE. DIA. MAX 1 CM) DERIVED FROM SEDIMENT WASHING PUMICE SOFT* 59 451 7 1 0.0 30.0 52.50 52.50 52.80 R DRILLING GOUGE 5Y6/2,-BLACK,5Y3/2 DRLG. GOUGE COMPOSED OF 85% 5Y6/2 PUM FRAGS,10% BLACK MN COATED PUM. FRAGS (1.5 CM DIA),AND 5% 5Y3/2 LITHIFIED TUFF (1-1.5 CM),85% PUM IS ANGULAR W/MN BLEBS (AVE DIM 1 CM--MAX 4X6 CM) HIGH. DEF. PUMICE,MN SOFT* 59 451 7 1 30.0 125.0 52.50 52.80 53.75 R ASH 5Y6/2,5Y5/1,5Y4/1,10G6/2,10G8/2,5Y3/1 30-33 CM 5Y6/2 ASH + NANNOFOSSILS LAYER,33-78 CM 5Y5/1 FINE ASH,78-83 CM 5Y4/1 FINE ASH MOTTLED (20%) WITH 5Y5/1,83-85 CM 10G6/2 FINE ASH,85-87 CM 5Y4/1 FINE ASH,87-89 CM 10G8/2 ASH,89-91 10G6/2 ASH,91-105 CM 5Y3/1 FINE ASH,105-125 CM 5Y4/1 FINE ASH MOD. DEF. NANNOS SS AT 31 (M 5Y6/2),65 (D 5Y5/1),AND 90 (M 10G6/2) CM SOFT 33213000.3651 59 451 7 CC 0.0 20.0 52.50 53.85 53.95 R ASH AS BOTTOM SECT.1 SOFT 33213000.3651 59 451 8 1 0.0 67.0 62.00 62.00 62.67 R ASH,PUMICE 5Y5/1 DRILLING ADMIXTURE OF 5Y5/1 HOMOG. ASH AND 5Y5/1 PUM. FRAGS (RATHER ROUNDED--AVE 1 CM DIA W/MAX 2X3 CM),RATIO PUM/ASH = 1/1 (?) BRECCIA (SOUPY) PUMICE SOFT ASH 33213000.3651 59 451 8 1 67.0 87.0 62.00 62.67 62.87 R VOLCANIC ASH 5Y5/1 HOMOG. HIGH.DEF. SOFT* 59 451 8 2 0.0 20.0 62.00 63.50 63.70 R ASH,PUMICE 5Y5/1 CHAOTIC ADMIXTURE OF 5Y5/1 ASH AND PUMICES (WELL-SORTED,ROUNDED,1 CM DIA),RATIO IS 1/1 BRECCIA PUMICE SOFT 33213000.3651 59 451 8 2 20.0 63.0 62.00 63.70 64.13 R VOLCANIC ASH 5Y5/1 MASSIVE HIGH. DEF. VOID 32-40 AND 44-50 CM SOFT 33213000.3651 59 451 8 3 0.0 57.0 62.00 65.00 65.57 R VOLC. ASH 5Y4/1,5G4/2,5G5/2 HOMOG. 5Y4/1 ASH EXCEPT FOR SOME TUFF INTERVALS OF 5G4/2 AND 5G5/2 AT 23-25,30-31,37-40,AND 50-55 CM,THESE APPEAR ALSO MORE COARSE (COARSE SILT -- FINE SAND) BRECCIA 5-20 CM,REST HIGH DEF. TUFF SOFT ASH,LITHIFIED TUFF* 59 451 8 6 0.0 90.0 62.00 69.50 70.40 R VOLC. ASH 5Y4/1,5G4/2 0-61 CM MASSIVE 5Y4/1 VOLC. ASH,61-81 CM MORE LITHIFIED 5G4/2 INTERVAL-- FRACTURED BY DRILLING IN PIECES OF 1 CM,81-90 CM MORE LITHIFIED 5Y4/1 ASH SOFT AT 0-61CM,REST MORE LITHIFIED 33213000.3651 59 451 8 6 90.0 96.0 62.00 70.40 70.46 R TRUE VITRIC TUFF 5Y3/2,5Y2/1,5GY5/1 UPPER 3 CM 5Y3/2 WITH NUMEROUS 5GY5/1 BURROWS INDIVIDUAL (0.3 CM DIA) AND COMPOSITE (1 CM DIA),LOWER 3 CM 5Y2/1 MASSIVE BURROWS COMPLETELY LITHIFIED 33213000.3651 59 451 8 CC 0.0 20.0 62.00 70.68 70.78 R TUFF 5Y3/2,5GY5/1,5Y2/1 FRAGMENTS OF 5Y3/2 WITH SOME 5GY5/1 BURROWS AND CHUNKS OF 5Y2/1 MASSIVE TUFF TUFF 33213000.3651 59 451 9 1 0.0 40.0 71.50 71.50 71.90 R WASHED GRAVEL 5Y8/1,-BLACK,5Y5/4 DRILLING PRODUCED WASHED GRAVEL MADE OF: 60% FRESH 5Y8/1 PUM. (0.4 CM DIA AVE--1 CM MAX),35% BLACK COVERED PUM. AND BLACK COARSE SAND-SIZED FRAGS (MOSTLY MN COATING M PUMICE,MN,TUFF SOFT 33132000 59 451 10 1 0.0 105.0 81.00 81.00 82.05 R ASH 5Y5/1,5Y7/1,5Y3/1,5Y6/1,5Y4/1 0-47 CM IS 5Y5/1 ASH,47-54 CM MASSIVE 5Y3/1 ASH,54-96 CM HOMOG. 5Y6/1 ASH,96-105 CM 5Y4/1 ASH W/SOME MOTTLES OF 5Y6/1 HIGH DEF. 0-20 CM,MOD DEF. REST NUMEROUS SMALL (0.5-1 CM) 5Y7/1 ROUNDED PUM. FRAGS (DISTURBED BY DRILLING) AT 0-22 CM (AT 11-14 CM THEY ALMOST FORM A LAYER) PUMICE SOFT* 59 451 10 CC 0.0 20.0 81.00 82.15 82.25 R ASH 5Y6/1 HOMOGENEOUS SOFT 11111210.3651 59 451 14 1 0.0 142.0 119.00 119.00 120.42 R FINE VOLCANIC ASH 5Y3/1,5Y4/1,5G4/2,5Y4/2,5YR3/3 ,5Y6/1,5Y5/1 0-6 CM SAND-SIZED 5Y3/1,6-47 CM SILT- SIZED 5Y4/1,SAND-SIZED 5Y3/1,50-51 CM SILT SIZED 5G4/2,51-68 CM SILT SIZED 5Y4/1,68-72 SILT 5Y4/2,72- 75 CM SILT SIZED 5Y4/1,75-80 CM SILT 5Y4/2,80-82 CM SILT 5YR3/3,82-93 CM SILT 5Y4/1,93-100 CM SILT 5Y6/1 ,105-140 CM SILT 5Y5/1 HIGH. DEF. 0-15 CM,MOD. DEF 15-40 CM,SLI. DEF. 40-140 CM 100-105 CM GRAVEL- SIZED 5Y6/1 ANGULAR PUM. FRAGS. LAYER (1 CM DIA) PUMICE 140-50 CM IS IW SPLE LITHIFIED 68-72 75-80 CM,REST SOFT 33133000 59 451 14 2 0.0 100.0 119.00 120.50 121.50 R ASH 5Y5/1,5Y4/2,5Y2/1 5Y5/1 SILT ASH,1 CM DIA 5Y4/2 MOTTLE AT 5 CM,2 CIRCULAR MOTTLES (BURROWS?) OF 5Y2/1 (1.5 CM DIA EACH) AT 75-80 CM SLI. DEF. SOFT* 59 451 14 CC 0.0 20.0 119.00 121.60 121.70 R SAME AS SECT. 2 SAME CORE 33133000 59 451 15 1 0.0 56.0 128.50 128.50 129.06 R VOLCANO-SEDIMENTARY TUFF 5Y3/1,-WHITE,5Y6/1 FRAGS OF MED. SAND-SIZED TUFF,MAIN COLOR 5Y3/1,FRAGS (SOME 1X2 CM ACROSS) OF 5Y3/2 CLAY AND SILT-SIZED VOLCANIC TUFF PRESENT AND ANGULAR,MUD IN PLASTIC BAG (5Y6/1 DRLG. GOUGE) 56-65 CM MOD. DEF. VOLCANIC GLASS IS 80% OF THE TOTAL VOLC. GLASS,TUFF FORAM BIOSOMATA AND BIOCLASTS (WHITE) 20% OF TOTAL, AT PLACES THE FORAM SKELETONS MAKE UP LAMINAE (SOME MM THICK) COMPOSED ONLY OF APPARENTLY FRESH AND WHOLE SHELLS (MAINLY ORBULINAE) HARD* 59 451 15 CC 0.0 30.0 128.50 129.16 129.36 R TUFF 0-10 CM MUD IN PLASTIC BAG (DRLG GOUGE),10- 30 CM SAME LITHOLOGY AS SECT.1 FORAMS HARD 33133000 59 451 16 CC 0.0 10.0 138.00 138.10 138.10 KS LIMESTONE N4,-WHITE,-LT.GREY,-BLACK 0-5 CM BROKEN PIECES OF N4 MICROCRYST.-FORAM LST,5-10 CM LIMESTONE CGL W/1 MM OF (?) VITRIC TUFF (STIPPLE), LIMESTONE: LARGEST CLAST 1.7X3 CM OF TUFF CONTAINING FORAMS,OTHER CLASTS 3-6 MM DIA WHITE PUMICE,MATRIX FINE-GRAINED LT.GREY LIME W/2% BLACK ASH FLECKS VITRIC TUFF,ASH,PUMICE FORAMS TOTAL RECOVERY FOR CORE 16,CORED INTERVAL 138.0-147.5* 59 451 18 CC 0.0 0.0 157.00 157.10 157.10 PUMICE -WHITE 10 PCS WHITE PUMICE,LGST PIECE 2X3X5 CM,SMALLEST 6X8X11 MM PROBABLY NOT IN PLACE- -WASHED HOLE CAVINGS,TOTAL RECOVERY FOR CORE 18, CORED INTERVAL 157-166.5 HARD 33132000 59 451 20 CC 0.0 20.0 176.00 176.10 176.20 KS TUFF -DK.GREY,5Y3/1-OL.GY,5Y2/1-OL.BLK,5GY4/1-DK GRISH GY,5G2/1-GNSH BLK 5 CM IS 2.5X2.5X5.5 CM PIECE OF FINE SAND-SIZED DK.GY VITRIC TUFF CONTAININ G FEW FORAMS,11 CM IS A 1.3 CM LAYER OF 5Y3/1 CLAY- SIZED TUFF WHICH GRADES COARSER INTO A 5Y2/1 VITRIC TUFF CONTAINING FORAMS (1.5 CM THICK),THIS IS UNDERLAIN BY A 5GY4/1 SLT AND CLY SIZED LAYER 3 CM THICK,SUCCEEDED BY A CLY-SIZED 5G2/1 LAYER CONTAININ G A SUBHORIZONTAL CALCAREOUS BURROW (3 MM WIDE) AND SMALL ROUND 1 MM PUMACEOUS SPOTS,THE BOTTOM OF THE PIECE IS 5G4/1-DK.GNSH GY AND SILTY TUFF,PUMICE FORAMS CORED INTERVAL 176.0-185.5* 59 451 21 CC 0.0 0.0 185.50 185.60 185.60 KS VITRIC TUFF (OR TUFFACEOUS LIMESTONE) -BLACK BLACK AND "SALT-AND-PEPPER" VITRIC TUFF AND CALC. VITRIC TUFF VITRIC TUFF CORED INTERVAL 185.5-195 .0 HARD* 59 451 22 CC 0.0 25.0 195.00 195.10 195.25 KS VITRIC TUFF 5G2/1-GNSH BLK,5GY2/1-GNSH BLK,5B6/1 -LT.BLUISH GREY 1.5-3 CM PIECES OF PUMICE CAVINGS? ,FINE 5G2/1 VITRIC TUFF (6-15 CM) WITH 6 MM DIA CIRCULAR 5GY2/1 INCLUSION PASSING INTO INTENSELY BIOTURBATED 5B6/1 ZONE PUMICE,TUFF CORED INTERVA L 195.0-204.5 HARD 33133000.3450 59 451 23 CC 0.0 20.0 204.50 204.60 204.70 KS VITRIC TUFF -BLACK BLACK VITRIC TUFF AND FINE VITRIC TUFF,ENTIRE RECOVERY IS LITHIFIED PIECES OF MAX 6 CM THICKNESS COARSER TUFF CONTAINS TRACES OF FORAMINIFERA CORED INTERVAL 204.5-214.0 HARD 33211000.3651 59 451 24 1 0.0 46.0 214.00 214.00 214.46 R SANDSTONE 5Y4/1,5Y3/1 6 PIECES OF 5Y4/1 BIO- CLASTIC AND VOLCANIC CLASTIC SANDSTONE,BIOCLASTS/VOL CANICS IS 4/6,SOME PIECES ARE BURROWED AND MOTTLED IN 5Y3/1 VOLCANICS MAINLY GLASS FRAGS BIOCLASTS ONLY FORAMINIFERA HARD 33234000 59 451 24 2 0.0 45.0 214.00 215.50 215.95 R VOLCANIC TUFF 5Y2/1,5Y6/1 5Y2/1 DRILLING BRECCIA AND FINE CUTTINGS OF VOLCANIC TUFF HARD 33133000 59 451 24 CC 0.0 20.0 214.00 216.05 216.15 R GRAVEL 5Y2/1 DRILLING GOUGE OF 5Y2/1 GRAVEL DRILLING GOUGE HARD 33219000 59 451 25 1 0.0 150.0 223.50 223.50 225.00 R FINE TUFF OR MUDSTONE (SILTSTONE) 5Y4/1,5Y6/1, 5YR3/3 TUFF COLOR 5Y4/1 BECOMING 5Y6/1 WHERE FORAM ENRICHMENTS OCCUR--THIS IS IN THE VERY NUMEROUS BURROWS OF THE SECTION AND IN A COARSE (FINE SAND) LAYER AT THE BOTTOM OF THE SECT. AND AT 9-13 CM,20- 35 CM BURROWED,35-41 CM NOT BURROWED,41-150 CM EXTREMELY BURROWED,60 CM HAS COMPOSITE BURROW 1CM DIA X 6.5 CM,41-100 CM BURROWS ARE PARALLEL EACH OTHER AND DIP 25 DEGREES,"ZOOPHYCUS" BURROW (1.5X6.5 CM) AT 98 CM,101-103 CM LAMINATED WITH 5YR3/3 LAMINAE W/SOME DISTURBANCE/INTERRUPTIONS GIVEN BY INDIVIDUAL BURROWS,103-148 CM MOTTLED AND BURROWED SLI. DEF. 4-5 CM PUMICEOUS TUFF (COARSE) PUMICE FORAMS,"ZOOPHYCUS" HARD* 59 451 25 2 0.0 14.0 223.50 225.00 225.14 R SLI. DEF* AS BOTTOM SECT.1 59 451 25 CC 0.0 20.0 223.50 225.30 225.40 R MUDSTONE (SILTSTONE) OR TUFF 5Y4/1 MAINLY 5Y4/1 MDST OR TUFF W/SOME FORAM RICH ZONES FORAMS* 59 451 26 1 0.0 43.0 233.00 233.00 233.43 R TUFF OR SILTSTONE 5G6/2,5Y3/1,5Y4/1 FRAGMENTS OF TUFF,0-10 CM VERY FINE GRAINED 5G6/2 TUFF RICH IN BURROWS,BIG (3X6 CM) ANGULAR CLAST/PEBBLE OF 5Y3/1 TUFF OR SILTSTONE W/O BURROWS AND FORAMS,10-28 CM 5Y3/1 TUFF OR SILTSTONE (AS THE PREVIOUS FRAGMENT), MASSIVE,WITH SOME PARALLEL BEDDING MARKED BY FORAM ENRICHMENT AND VERY FINE GRAINED TUFFACEOUS (OR MDST ) MATERIAL,28-43 CM 5Y4/1 TUFF OR SLTST W/BURROWS AND FORAM RICH ZONES,SHARP CONTACT AT 33 CM MARKED BY FORAM SHELLS SLI. DEF TUFF FORAMS HARD* 59 451 26 CC 0.0 20.0 233.00 233.53 233.63 R VERY FINE TUFF OR CHERTIFIED MUDSTONE 5Y7/1, 5GY7/1,-BLACK VERY FINELY LAMINATED 5Y7/1 TO 5GY7/ 1 V.F.TUFF OR MDST,LAMINAE ARE GIVEN BY ALIGNMENT OF BLACK COARSER VITRIC PARTICLES--WHICH FORM ALSO TRUE INTERVALS UP TO 2 CM THICK,WITH EROSIONAL BASAL CONTACTS,AND BURROWS IN THE V.F.TUFF,NO FORAMS ARE NOTED AND THE ROCK IS VERY COMPACT AND HOMOG HARD* 59 451 27 1 0.0 115.0 242.50 242.50 243.65 R TUFF 5Y2/1,5Y5/1,5Y4/1,5Y4/2,5Y5/2,5Y6/1 0-31 CM MAINLY PIECES OF 5Y2/1 TUFF RICH IN FORAMS--FINE GRAINED WITH INTERVALS OF COARSER (MED. TO COARSE SAND SIZE) MATERIAL (VITRIC) UP TO 2 CM THICK (THE MOST ENRICHED IN FORAMS INTERVALS DISPLAY 5Y5/1 COLO R,31-51CM 5Y2/1 TUFF W/RARE FORAM-RICH 5Y5/1 BURROWS AT 31-40 AND VERY INTENSE BURROWS (SAME CHARACTERS) AT 40-51,51-74 CM 5Y4/1 AND 4/2 FINE TUFF INTENSELY BURROWED IN 5Y5/2 (FORAM ENRICHED) AND BLACK BURROWS,COMPOSITE BURROW AT 65 CM,74-84 CM MASSIVE ONLY SLI. BIOTURBATED INTERVAL W/SCATTERED FORAMS,1 CM LAMINAE OF VERY FINE TUFF W/O FORAMS AT 79-80, 86-95 CM 5Y4/1 TUFF WITH SOME FAULTED PARALLEL 5Y2/1 LAM AND W/O FORAMS,95-105 CM 5Y4/1 TUFF INTENSELY BIOTURBATED IN 5Y5/1 AND 5Y6/1 FORAM RICH,105-112 CM PARALLEL LAM. INTERVAL OF 5Y2/1 AND 5Y4/1--LAMINAE MARKED BY ALIGNMENTS AND ENRICHMENTS OF FORAMS,112- 115 CM 5Y2/1 INTERVAL--GRADED FROM SILT TO MED. SAND HIGH. DEF. 0-31 CM,MOD. DEF. 30-115 CM FORAMS* 59 451 27 CC 0.0 20.0 242.50 243.76 243.86 R FORAMINIFERAL VOLCANIC TUFF 5Y4/1 2 PIECES, FORAM/TUFF IS 1/1,THE TWO COMPONENTS FORM A COMPLEX ADMIXTURE OF BURROW AND HOST ROCK FORAMS HARD* 59 451 28 CC 0.0 20.0 252.00 252.10 252.20 R FORAM-RICH TUFF 5Y4/1,5Y3/1 FORAM RICH TUFF OF 5Y4/1 COLOR WITH 5Y3/1 PATCHES FORAMS,POOR IN SKELETONS CORED INTERVAL 252.0-261.5* 59 451 29 CC 0.0 20.0 261.50 261.60 261.70 R FORAM VOLCANIC TUFF 5Y3/1,5Y2/1,5Y5/1,5GY5/1 3 PIECES OF FORAM VOLC TUFF: 1 (0-5 CM) AND 3 (12-20) ARE 5Y3/1 FINE TUFF EXTREMELY BIOTURBATED IN 5Y2/1 AND 5Y5/1,2 (5-12 CM): TOP 0.5 CM COARSE 5Y2/1 VITRI C TUFF AND VERY RARE FORAMS--EROSIONAL LOWER CONTACT ,BELOW 2 CM 5GY5/1 FINE TUFF W/RARE FORAMS AND SLI. BIOTURB. OF 5Y2/1 (W/RARE FORAMS),GRADATIONAL TRANSITION TO PIECE 3 MOD. DEF. PIECES ONE AND 3 ARE RICH IN FORAMS (AMOUNTING TO AROUND 25%),PIECE 2 HAS RARE FORAMS CORED INT 261.5-271.0 HARD* 59 451 30 CC 0.0 20.0 271.00 271.10 271.20 R FORAM VITRIC TUFF 5Y3/1,5Y2/1,5Y5/1 SEVERAL PIECES OF HEAVILY BIOTURBATED FINER AND SAND-SIZED 5Y3/1 FORAM VITRIC TUFF,COARSER PIECES ARE 5Y2/1, BURROWS-5Y5/1 AND MOSTLY INDIV FORAMS HARD 33133000.1221 59 451 31 1 0.0 145.0 280.50 280.50 281.95 R TUFF 5GY4/1,5GY6/1,5G5/2,5G4/2,5Y4/1,-WHITE, 5Y3/1,5Y2/1 CORE BROKEN INTO 20 SEPARATE PIECES,1 AND 2 (0-12 CM) FINE-GRAINED VERY BIOTURBATED 5GY4/1 TUFF,3 (12-22 CM) CEMENTED 5GY4/1 VOLCANIC LAPILLI (AV. 0.5 CM MAX 1 CM)--DIP 45 DEGREES,4-8A (22-60 CM ) 5GY6/1 VERY FINE TUFF CHARACTERIZED BY 5G5/2 PARALLEL SLI. DIST. AND CRENULATED LAM. (SOME CM THICK)--FAULTED WITH NORMAL FAULTS (4-5 CM DISPLACE) AND LAMINAE DIP 45 DEGREES,88-10 UPPER (55-71 CM) PARALLEL 5G4/2 CM THICK LAMINAE IN 5Y4/1 TUFF,10-11 (71-74 CM) GRAVEL-SIZED 5Y2/1 LAPILLI (0.4 CM DIA) W/SOME WHITE BIOGENOUS DEBRIS,11 (74-76 CM) 5Y4/1 FINE TUFF,11-16 UPPER (76-110 CM) ROUNDED 5Y3/1 VOLC LAPILLI (AV 0.5 CM MAX 0.8 CM) W/SCATTERED SHALLOW WATER REWORKED BIOGENEOUS DEBRIS (THE BIOCLASTS ARE NO MORE CALC.--MAY BE REPLACED BY SILICA) OCCURRING AS WH. FRAGS--IN 14 (95 CM) A CLEAR EROSIONAL CONTAC T OCCURS AND THE CONTACT IN 16 (110-112 CM) IS 45 DEGREE DIP,16-18 UP (110-130 CM) FINE GRAINED 5Y4/1 TUFF,18-19 (130-140 CM) VERY COARSE GRAINED (COARSE SAND) TUFF WITH SOME BIOGENIC DEBRIS--COLOR 5Y2/1,20 (140-145 CM) VERY FINE 5Y3/1 TUFF WITH LENTICULAR INTERCALATIONS OF SAND-SIZED 5Y2/1 TUFF SLI. DEF. 1 AND 2 ARE FORAM RICH,4-8A HAS RARE FORAMS SCATTERED INSIDE THE TUFF,8B-10 HAVE SCATTERED FORAM ,11-16 BIOGENIC DEBRIS IS CORAL? (1 CM DIA) AND SHALLOW BENTHONIC FORAMS AS LEPYDOCYCLINE TIPE,16-18 WITH NUMEROUS (20%) PLANKTONIC FORAMS SCATTERED* 59 451 31 CC 0.0 20.0 280.50 282.05 282.15 R FINE GRAINED TUFF 5Y3/1 ONE LAYER OF COARSE GRAINED TUFF MANY FORAMS 33133000 59 451 32 1 0.0 150.0 290.00 290.00 291.50 R TUFF 5GY4/1,5G6/1,5Y2/1,5Y4/1,5Y3/1,5GY5/1,5GY6/ 1 0-10 CM HOMOG. 5GY4/1 FINE TUFF,10-21 CM SAME AS 0-10 BUT HEAVILY BIOTURB. IN 5G6/1--LOWER CONTACT SHARP,21-75 CM 5Y2/1 VOLC. MED. SAND-SIZED TUFF GRADING DOWNWARD TO A 5Y2/1 VOLC. LAPILLI OF AVE. CLAST DIM. 0.5 CM (ANGULAR)--MATRIX VERY SCARCE WASHED OUT IN PART (RATIO C/M IS 5/1)--LOWER CONTACT EROSIONAL AND SHARP,75-80 CM HEAVILY BIOTURB. FINE 5Y4/1 TUFF,80-86 CM SAND-SIZED 5Y2/1 TUFF W/PLANK. FORAMS MARKING LAMINAE,86-90 CM INTERVAL AS 75-86, 90-113 CM FINE 5Y3/1 TUFF BIOTURB. AT 90-109 EXCEPT FOR 3 PARALLEL FOLDED LAMINAE AT 99 CM--MASSIVE BELOW,113-119 CM MED. SAND-SIZED 5Y2/1 TUFF,119-130 CM MASSIVE 5Y3/1 FINE TUFF,130-150 CM 5GY4/1 FINE TUFF HEAVILY BIOTURBATED IN 5GY5/1 AND 6/1--ONE COARSER 2 MM(?) LAMINA AT 140 CM SLI. DEF. CLAST COMPOSITION (21-75 CM) IS BASALT (SOME PL. PHYRIC) 30%,GLASS 30%,PUMICE 30%,ZEOLITE 5%,ANDESITE + ACID VOLCANICS 5% BASALT,GLASS,PUMICE,ZEOLITE,ANDESITE, ACID VOLCANICS,TUFF PLANKTONIC FORAMS MARKING LAM. 80-86 CM,NUMEROUS (30%) SCATTERED FORAMS FORMING SOMETIMES LENTICULAR LAMINAE 119-130 CM,IN THE WHOLE SECTION THE FORAMS ARE RATHER RARE AND TRANSFORMED 33133000 59 451 32 CC 0.0 32.0 290.00 291.60 291.82 R FINE TUFF 2.5Y3/2,5GY6/1 2.5Y3/2 FINE TUFF WITH RARE INDIVIDUAL 5GY6/1 BURROWS AND SOME PARALEL LAMINATION* 59 451 33 1 0.0 110.0 299.50 299.50 300.60 R TUFF 5Y2/1,5Y5/1,5YR3/2,5YR3/3,5Y3/1 0-10 CM 5Y2/1 FINE TUFF BIOTURBATED WITH 5Y5/1,10-50 CM COARSE GRAINED 5Y2/1 TUFF GRADED FROM SILT TO MED. SAND,50-51 CM FINE SAND 5YR3/2 TUFF,51-72 CM 5Y2/1 FINE TUFF BIOTURBATED IN 5Y5/1,72-77 CM COARSER FINE SAND 5Y2/1 TUFF W/ONE BAND OF FINE 5YR3/3 TUFF AT 75-76,77-110 CM MASSIVE FINE 5Y3/1 TUFF HIGH. DEF. 50-51 CM RICH IN RED IRON OXIDES OR ACIDIC VOLC. GRAINS IRON OXIDES OR ACID VOLC GRAINS RARE FORAMS 10-50 CM,FORAMS PRESENT 50-51 CM* 59 451 33 2 0.0 36.0 299.50 301.00 301.36 R FINE TUFF 5Y3/1 MASSIVE AS BTM SECT.1* 59 451 33 CC 0.0 20.0 299.50 301.46 301.56 R FINE TUFF 5Y3/1 MASSIVE* 59 451 34 1 0.0 150.0 309.00 309.00 310.50 R TUFF 5Y6/1,5Y3/1,5G5/2,5Y2/1,5GY4/1,5Y5/1 0-40 CM FINE TUFF OF MANY COLORS MAINLY 5Y6/1 AND 5Y3/1 W/SOME MM THICK PARALLEL LAM. OF 5G5/2 AND SOME MED. SAND 5Y2/1 TUFF LAYERS (0-2,17-18,30-35 CM)--SHARP CONTACTS,40-50 CM 5Y2/1 LITHIC AND VITRIC LAPILLI (AVE. DIM. OF GRAINS 0.5 CM ROUNDED) POORLY CEMENTED BY FINE TUFF--GIVEN BY BASALT,GLASS,PUM,AND FEW ACID VOLC.,50-150 CM FINE 5GY4/1 TUFF W/SOME COARSE (MED. SAND) 5Y3/1 TUFF LAYERS,LOAD CASTS AT 67 CM, RECRYSTALLIZED (CHERTIFIED?) LAMINAE AT 77 CM,88-97 CM FAULTED AND DISTURBED PARALLEL LAM.,CROSS LENTICU LAR LAM. 111-114 CM,115-123 CM 5Y5/1 BIOTURB. HIGH DEF. VESICULAR BASALT (PL. PHYRIC) CLASTS,ISOLATE D,ROUNDED,MAX 1 CM DIA,AT 80-82 CM BASALT,GLASS, PUMICE,ACIDIC VOLCANICS N.B. PIECES ARE USUALLY BROKEN AT COARSER TUFF LEVELS. THIS MAY SUGGEST THAT MOST OF THE COARSE MATERIAL HAS BEEN LOST DURING DRILLING,FOR ITS LOWER DEGREE OF CEMENTATION. THIS APPLIES FOR ALL PREVIOUS CORES STARTING FROM 15* 59 451 34 2 0.0 14.0 309.00 310.50 310.64 R FINE TUFF 5GY4/1,5Y2/1 FINE 5GY4/1 TUFF (MASSIVE) WITH SOME COARSER 5Y2/1 INTERVALS SLI.* 59 451 34 CC 0.0 20.0 309.00 310.74 310.84 R FINE TUFF 5GY4/1,5Y2/1 5GY4/1 FINE TUFF W/SOME 5Y2/1 COARSER LAYERS,26 DEGREE DIP MEASURED ON WHOLE PIECE AT CONTACT BETWEEN LAPILLI AND UNDERLYNG FINE TUFF* 59 451 35 1 0.0 73.0 318.50 318.50 319.23 R TUFF,LAPILLI 5Y2/1,5GY4/1 0-20 CM VERY FINE 5Y2/1 TUFF W/RARE INTERCALATIONS OF SLIGHTLY COARSER TUFF [DIP?],20-36 CM MED. SAND-SIZED MASSIVE 5Y2/1 TUFF,36-73 CM 5GY4/1 VOLC. LAPILLI,RATIO C/M 4:1,DIM ENSIONS CLASTS MAX 2 CM AVE 0.5 CM INCREASING DOWNWARD IN LEVELS AT 44-50 56-59 AND 64-73 CM,MAT MATRIX SCARCE AND PARTLY WASHED OUT FINE TUFF,CLASTS BASALT+GLASS+PUMICE 90%,ANDESITIC + ACIDIC VOLCANIC (? CHECK W/PETROLOGISTS) 10% (UNDEFORMED?) BASALT,GLASS,PUMICE,ANDESITIC AND ACIDIC VOLCANICS* 59 451 35 CC 0.0 20.0 318.50 319.33 319.43 R VOLC. LAPILLI 5GY4/2 VOLC. LAPILLI GRADING DOWNWARD TO A BASALTIC BRECCIA WITH BIG 3-6 CM ANGULAR FRESH PL. PHYRIC BASALT FRAGS,FOR THE LAPILI SEE DESC. SECT. 1 BASALT HARD* 59 451 36 1 0.0 75.0 328.00 328.00 328.75 R TUFF,LAPILLI 5Y2/1,5GY5/1,5GY4/1 0-7 CM 5Y2/1 COARSE-SAND-SIZED TUFF,7-12 CM MASSIVE 5Y2/1 FINE TUFF--SHARP BASAL CONTACT,12-21 CM VOLCANIC LAPILLI. ROUNDED BASALT GLASS AND PUM FRAGS (MAX 1 CM DIA AVE 0.4 CM) IN FINE TUFF MATRIX--RATIO C/M IS 3/1, 21-41 CM 5Y2/1 FINE-SAND-SIZED TUFF W/SOME LAYERS OF SILT (FINER) TUFF (SAME COLOR) AT 26-27 AND 30-31 CM,41-75 CM 5GY4/1 VOLC. LAPILLI RATIO C/M IS 5/1. CLASTS ROUNDED SIZE INCREASING DOWNWARD (MAX DIM 2X1 CM AVE 0.5 CM),BASALT MAINLY (45%),GLASS+PUM 45%, ANDESITE OR ACID VOLCANICS 10%,MATRIX FINE TUFF HIGH.DEF. BASALT,PUMICE,GLASS,ANDESITE* 59 451 36 CC 0.0 40.0 328.00 328.86 329.16 R TUFF 5Y5/1,5Y2/1,5GY4/1 PIECES OF FINE AND COARSE TUFFS OF DIFFERENT COLORS,MAINLY 5Y5/1 (TWO PIECES),5Y2/1 (SEVERAL PIECES) SHOWING ALTERNATE COARSE AND FINE LAYERS,AND 5Y2/1 COARSE TUFF WITH A BASALT LAPILLI LAYER (CLASTS MAX 1.3 CM DIA MOSTLY ROUNDED) GRADING TO 5GY4/1 FINE TUFF,DIP MEASURED ON WHOLE PIECE 34 DEGREES--POOR RELIABILITY DUE TO THE SMALL SIZE OF THE PIECE AND THE UNCERTAINTY OF THE MEASURED CONTACT BASALT* 59 451 37 1 5.0 145.0 337.50 337.55 338.95 KS SANDSTONE?,LAPILLI 5Y2/1,5GY2/1-GRNSH BLK 5-55 CM GRADED FINE 5Y2/1 SAND,55-80 CM 5Y2/1 MED-CRSE SS ,80-110 CM 5Y2/1 VOLC. LAPILLI TUFF. FINE SS MATRIX W/20% 5GY2/1 CLASTS (C/M: 4:1),110-130 CM FINE-CRSE SS,130-135 CM CRSE SS,135-145 CM LAPILLI TUFF (MAX DIM 7 MM) SIZE OF CLASTS 2X3 MAX (CM) 3X4 MM AVE, ANGULAR TO SUBANGULAR,COMPOSITION: PLAG PHYRIC BASLT W/ALTERED GROUNDMASS (REPLACED W/SMEC?),APHYRIC TO APHANITIC BASALTS OR BASALTIC ANDESITE,ALTERED PUM., BASALTS W/VARIOLITIC GROUNDMASS,SOME OF THE CLASTS EXTREMELY ALTERED WITH DISSIMILATED (SIC) PYRITE, ALMOST ALL CLASTS ARE HIGHLY VESICULAR (2-5%?) PLAGIOCLASE PHYRIC BASALT,SMECTITE?,BASALT,PYRITE ENC. NOTE: VERY POOR DESCRIPTION ON FORM* 59 451 37 2 0.0 27.0 337.50 339.00 339.27 KS LAPILLI TUFF AS IN BOTTOM OF SECT. 1,C/M=4/1 33132000 59 451 37 CC 8.0 21.0 337.50 339.45 339.58 KS LAPILLI TUFF,SANDSTONE 5Y2/1 8-11 CM LAPILLI TUFF,11-21 CM GRADED CRSE SS--LAPILLI TUFF,2 DEGREE DIP 33132000 59 451 38 1 0.0 150.0 347.00 347.00 348.50 KS LAPILLI -GREEN WHOLE SECT. IS 3-6 CM PIECES OF CORE,0-5 CM FINE SS (VERY HARD),5-150 LAPILLI TUFF C/M = 3/1,MAX DIA 5 MM,MED-CRSE 12-24 CM,FINER TO 60 CM AND 111-119 CM,REST COARSER,COMPOSITION OF CLASTS: 50-60% FINE GRAINED TO APHANITIC BASALTS OR BASALTIC ANDESITES,30% APHYRIC VESICULAR ALTERED VARIOLITIC BASALTS,10% ALTERED CLASTS OF PUMICE, SMALL (<0.05 MM) PIECES OF HIGHLY OXIDIZED VOLCANICS (POSS. ALT. ANDESITES) ARE PRESENT IN MATRIX BIG CLAST OF PLAGIOCLASE OLIVINE PHYRIC BASALT (135-142 CM?)-- PL-PHENOCRYSTS 10%-ELONGATE TUBULAR XSTALS (2-3 MM),PL-SUBPHENOCRYSTS 5%- ELONG. PRISMATIC XSTALS (0.5 MM),OL-PHENOS 5%- SHORT PRISMS IRREG. PARTIALLY(?) RESOLVED (3-4 MM)--RELATIVELY FRESH, GROUNDMASS-- 70%(?) CRYSTALLIZED,VERY FINE GRAINED, APHANITIC TO HYALOPILITIC AND INTERSERTAL. GROUNDMSS AND PHENOS OF OL. ARE LOCALLY REPLACED WITH GREEN SMECTITE BASALT,ANDESITES,PUMICE,PLAGIOCLASE, OLIVINE,SMECTITE HARD 33132000 59 451 38 2 0.0 150.0 347.00 348.50 350.00 KS LAPILLI,TUFF 2.5Y5.5/1,7.5YR3/2-DK.BN,2.5YR5/0-G REY,-WHITE,-RED,2.5Y4.5/1,2.5Y4/0,2.5Y4.5/0, 5GY4/1-DK.GNSH GY,N5-GY 0-10 CM LAPILLI TUFF AS BTM SECT.1,10-32 CM 6 PCS VESICULAR BASALT--PROBABLY ALL ONE CLAST BROKEN BY DRILLING,0-32 CM ALL 2-6 CM PIECES,32-150 CM 3-16 CM PCS,32-41 CM MED.SS. V. TUFF--LOAD CAST 39-41 TO FINE SS-SILT V.T.,41-53 CM FINE-MED SS V.T.,53-74.5 CM F V.T.--3 MM DIA. SUBHOR IZ. BURROW AT 66 CM AND 2.5Y5.5/1 MOTS NEAR BTM,74.5 -79 CM 40% 7.5YR3/2 AND 60% 2.5YR5/0 W/INTENSE BIOTURBATION AND MANY WHITE FORAMS,79-87 CM SLIGHT BIOTURB. SAME COLORS--MANY FORAM SPECKS <1%,87-94 CM MASSIVE FINE SS V.T.,94-97 CM LAPILLI TUFF LAYER (1X1.5 CM PUMICE),97-104 CM FINE SS V.T.,104-110 CM CRSE SS V.T.,110-115 CM FINE SS V.T.,115-123 CM CRSE SS V.T.--1% RED 1 MM,123-129 CM BIOTURB. F.V.T.-- 2.5Y4.5/1 WITH 2.5Y5.5/1 (WH. FORAM SPECKS),129-133 CM GRADED MED-FN SS,133-141 CM F.V.T. 2.5Y4/0,141-14 4 CM VT.,FN SS 2.5Y4.5/0 W/FORAM SPECKS <1%,144-150 CM INTERLAYERED 5GY4/1 AND N5,20 DEGREE DIPS 10-32 CM (BASALT):PLAGIOCLASE OLIVINE PHYRIC VESICULAR BASALT,COMPOSITION: PL-PHENOCRYSTS 20%- SHORT PRISMATIC XSTALS (2-3 MM) SLIGHTLY RESORBED,OL-PHENO 5%- 0.5 MM,GRNDMASS-FINE GRAINED MED. GREY,20% CRYSTALLIZED,HYALOPILITIC TO INTERSERTAL. LOCALLY APHANITIC,VESICLES 15% SPHERICAL. IRREGULAR (2-3 MM DIA)--MAINLY EMPTY,UPPER PART OF THE PIECE CONSISTS OF APHYRIC BASALT GRADING INTO PL-OL-PHYRIC BASALT ,OLIVINE,PLAGIOCLASE(SEE U),PUMICE FORAMS HARD 33132000 59 451 38 3 0.0 44.0 347.00 350.00 350.44 KS TUFF 5GY4/1,5YR4.5/1,2.5Y4/0,5Y4.5/0 20 DEGREE DIPS,0-5 CM LAMIN. DISTBD--LOAD CAST,10 CM 5 MM ZONE W/1% FORAMS,5GY4/1 FVT TO 12 CM,12-27 CM 5YR4.5/1 WITH FORAM SPECKS <1%,27-28 CM CRSE SS LYR, 28-33 CM 2.5Y4/0 FVT,33-44 CM GRADED CRSE-FINE SS -- AT BOTTOM LOAD CAST,IRREGULAR CONTACT WITH 5Y4.5/0 FVT FORAMS (SEE S)* 59 451 38 CC 0.0 13.0 347.00 350.54 350.57 KS SANDSTONE?,VITRIC TUFF 0-9 CM GRADED GRANULE AND CRSE SS UP TO FINE SS,9-12 CM FINE SS,12-13 CM CRY? SIZED FVT* 59 451 39 1 0.0 150.0 356.50 356.50 358.00 KS LAPILLI TUFF DIPS = 20 DEGREES,C/M = 4/1,CLASTS PRED. VESICULAR APHANITIC TO APHYRIC BASALTS OR BASALTIC ANDESITES (AVE 2 MM MAX 6X1 MM SIZE),44-46 CM BIOTURB. FVT,48-52 CM FINE SS V.T.,64-68 CM ZONE OF LARGEST CLASTS,70-84 CM CRSE-MED SS V.T. SMALL FRAGS OF EPIDOTE AS WELL AS GRAINS OF PYRITE ARE PRESENT IN MATRIX,SOME RARE PIECES OF BASALT ARE STRONGLY ALTERED--HYDROTHEMALLY LIGHT IN COLOR AND ENRICHED WITH PYRITE BASALT,EPIDOTE,PYRITE* 59 451 39 2 12.0 16.0 356.50 358.12 358.16 KS SANDSTONE 5Y2.5/0 CRSE SS 12-14 CM,FINE SS 14- 16 CM* 59 451 39 CC 0.0 21.0 356.50 358.26 358.37 VITRIC TUFF,SANDSTONE 5Y2.5/0,5Y2/0 0-8 CM LAMIN V.T. FINE SS 5Y2.5/0--20 DEGREE DIP,8-15 CM 5Y2/0 V.F.T.,15-21 CM 5Y2.5/0 FINE SS V.T. HARD* 59 451 40 1 0.0 150.0 366.00 366.00 367.50 KS LAPILLI TUFF 2.5Y5/0,2.5Y4/0,5Y2.5/0,5Y2/0,-RED 0-55 CM LAPILLI TUFF WITH 30 DEGREE DIPS. C/M=4/1. MAX CLASTS 7X10 MM AND AVE 3 MM,55-64 CM 2.5Y5/0 TO 2.5Y4/0 CARB. RICH F.V.T.,64-97 CM WELL-BEDDED 5Y2.5/0 FINE-MED SS,97-102 CM 5Y2/0 FVT--GRADED (FINE SS UPTO? SILT),102-150 CM LAPILLI TUFF AS 0-55 PREDOMINANT CLAST LITHOLOGY: 65% VESICULAR BASALT OR BASALTIC ANDESITE,20% FRESH AND ALTERED GLASS,5% SUBAERIALLY WEATHERED BASALT (RED GRAINS),10% PUMIC E SEVERAL LARGE FORAMS AND (?) CORAL FRAGS 0-55 CM SS AT 88 CM--FINE SS* 59 451 40 2 0.0 150.0 366.00 367.50 369.00 KS LAPILLI TUFF MAX CLAST SIZE 1.5X2 CM,ROUNDED FVT ,MAX CLAST AT 21-23 CM* 59 451 40 3 0.0 95.0 366.00 369.00 369.95 KS LAPILLI TUFF SAME AS PREVIOUS SECTION* 59 451 40 CC 7.0 19.0 366.00 370.02 370.14 KS TUFF 5Y2/1* 7-10 CM 5Y2/1 VITRIC TUFF,10-19 CM GRADED LAPILLI TUFF (TO MED SS) 59 451 41 1 0.0 132.0 375.50 375.50 376.82 KS TUFF -RED,5Y2/1,5Y3/1,5Y4/4 WHOLE CORE IS PIECES 2-8 CM THICK (AVE 3-4 CM),0-52 CM LAPILLI TUFF WITH C/M = 2/1 (SEE M FOR CLAST COMP.),52-71 CM FINE-CRSE GRAINED VT,RECUMBENT PENECONTEMPORANEOUS FOLD (1.5 CM AMPLITUDE) AT 71? CM,71-89 CM 5Y3/1 FVT AND 5Y2/1 FINE SS VT IN ALTERNATING 3-25 MM THICK LAYERS,89-150 CM LAPILLI TUFF AS IN TOP INTERVAL,109 -113 CM 5Y4/4 F.V.T. W/FINE DISSEM. CARBONATE CLASTS: PL-OL-PH BASALT 20%,ALTERED GLASS + VITROPHYRIC BASALT + ALT. PUMICE 60%,ALT. RED ANDESITE(?) 15%,REST GLASS+CARB.+TUFF,SOME GLASS HYDROTH ALT.CONTAIN DISSEMINATED (SP?) PYRITE AND ARE LIGHT IN COLOR FEW SCATTERED SHALLOW WATER BENTHIC FORAMS 0-52,FORAM SPECKS 109-113 CM* 59 451 41 CC 0.0 24.0 375.50 376.92 377.06 TUFF 5Y4/0 0-12 CM SAME LAPILLI TUFF AS BTM SECT.1,12-15 CM FINE SS V.T.,15-20 CM 5Y4/0 FVT,20-2 2 CM V.T.,22-24 CM 3 CM SUBANG VESICULAR BASALT BASALT FORAM SPECKS 12-15 AND 20-22 CM* 59 451 42 1 0.0 150.0 385.00 385.00 386.50 KS TUFF,SS 5G4/1,N5,N6,N3,5Y5/1-GREY,5G9/1,5G4/1, -BLK,5Y6/1,5Y3/1 WHOLE CORE IS 5-12 CM THICK PCS, 0-9 CM LAPILLI TUFF (LARGEST CLAST 5X1 CM),9-12 CM HIGHLY CONTORTED 5G4/1 AND N5 CALC. F.V.T.,12-50 CM INTERBEDDED N6 F.V.T. AND N3 V.T. FINE SS IN 2-20 MM LAYERS--SANDS DISPLAY TRUNCATED X BDRY,50-64 CM 5Y5/1 FINE SS W/1 MM BLK LAMINAE,AND 5G4/1 LAYERS AT BASE,64-72 CM 5G4/1 + 5Y5/1 FINE SS AND SLT SIZE,68 CM IS 12 MM BLK MED SS LAYER WITH 2.5 CM SUBORDINAT E NORMAL FAULT DISPLACEMENT AND 9 CM DISPL. ALONG MAJOR FAULT,72-111 CM BLK. VITRIC TUFF .5-2 CM TH BET (SIC) WITH 5Y6/1+BLK LAMINAE,COARSER (MED SS) AT BASE W/LOAD CASTING AND PENECONTEMPORANEOUS FAULTING (NORMAL) 1.2 CM DISPL.,111-119 CM 5Y3/1 FINE SS-SLT ZONE W/NORMAL FAULTING (1.2 CM DISPL.), 119-132 CM MED-FINE SS LAMIN. W/FORAM RICH 1-2 MM LAYERS TOP HALF,131 CM 5Y5/1 SLT-FINE SS LAYER FAULTED BELOW,132-150 CM 5Y5/1 SLT-FINE SS FINELY LAMIN.NORMAL FAULTED (0.5CM DISP),136CM BLK 1CM MED SS V.T. LAYER 50-64 CM >1% FORAMS,119-132CM FORAM- RICH 1-2 MM LAYERS,132-150 <1% FORAM SPECKS HARD* 59 451 42 2 0.0 150.0 385.00 386.50 388.00 KS SS,TUFF -WHITE,5Y4.5/1,5Y6/1 0-12 CM MED-FINE SS FINELY LAMINATED W/WH. 1-2 MM LAYERS,12-50 CM MED SS,50-70 CM CRSE SS,70-150 CM LAPILLI TUFF MAX CLASTS 4X6 MM,LOAD CAST AND DEFORMATION OF UNDERLYNG UNIT AT 80 CM,80-85 CM 5Y4.5/1 FINE SS-SLT TUFF W/DEFORMED UPPER AND LOWER CONTACTS,85-110 CM GRADED VITRIC TUFF (W/5Y6/1 LAMINAE)--NORMAL GRADING TO 115 CM,REVERSE GRADING BELOW,MAX CLAST SIZES AT 115 CM,2 NORMAL FAULTS (EACH W/7 MM DISPL) AT 130 CM,131 -150 CM SEVERAL SMALL PIECES OF FVT AND VT FORAM RICH LAMINAE 0-12 (WHITE) AND 85-110 (5Y6/1) CM HARD* 59 451 42 CC 0.0 20.0 385.00 388.10 388.20 KS TUFF 5Y2/1,2.5Y3/2,5Y6/1 ONE PIECE MED. SAND- SIZED 5Y2/1 MASSIVE TUFF W/FINE 2.5Y3/2 TUFF INTERLA YER,ONE PIECE COARSE SILT-SIZED TUFF MADE BY ALTERNATE MM PARALLEL LAMINAE OF 5Y2/1 AND 5Y6/1 TUFF ATOP,LENTICULAR AND CROSS AT BOTTOM* 59 451 43 CC 0.0 20.0 394.50 394.60 394.70 R TUFF 5Y7/1,5Y2/1 1 PIECE OF 5Y7/1 AND 5Y2/1 FINE TUFF CONSISTING OF A COMPLEX INTERMIXING OF THESE COLORS DUE TO VERY HEAVY BURROWING,SEVERAL PCS MASSIVE 5Y2/1 MED. SAND-SIZED TUFF* 59 451 44 1 0.0 107.0 404.00 404.00 405.07 R MASSIVE FINE 5Y2/1 TUFF 5Y2/1,5Y3/2 0-20 BURROWED IN 5Y3/2,20-80 CM SAME--MASSIVE WITH SOME PATCHES SLIGHTLY COARSER SAME COLOR,FAINT HIGH ANGLE INCLINED AND PARALLEL LAMINAE AT 75-80 CM,80-107 CM SAME AS 0-20 RICH IN FORAMS,MOSTLY SCATTERED (UP TO 15%) 0-20 AND 80-107 CM,FORAM POOR (2-5%) 20-80* 59 451 44 CC 0.0 40.0 404.00 405.17 405.47 R TUFF 5Y2/1 SEVERAL SMALL PIECES OF MASSIVE VITRIC TUFF 5Y2/1 FORAM POOR ACTUALLY IN THE SAME LINER AS SECT. 1* 59 451 45 1 0.0 150.0 413.50 413.50 415.00 R BOULDER VOLCANIC BRECCIA 5Y3/1,5BG7/2-PALE BLUE GREEN MATRIX IS TUFF AND VOLC. LAPILLI OF 5Y3/1 COLOR,BOULDERS ARE MAINLY BASALT UP TO 20-30 CM DIM MOD. DEF. 1:5-11 CM FINE GRAINED PLAG. PHYRIC VESICULAR BASALT PL-EUHEDRAL PRISMATIC XSTALS (1-2 MM) 15% GROUNDMASS HYALOPILITIC. OVAL IRREGULAR (1-1.5 MM DIA) COMPLETELY EMPTY VESICLES 15%, 3: 60-90 CM PL- OL PHYRIC AMYGDALOIDAL BASALT: PL 30%- EUHEDRAL AND SUBHEDRAL PRISM XSTALS (0.5-1 MM).OL 5-7%- SUBHEDRAL SLIGHTLY RESORBED ALTERED AND REPLACED W/SMECTITE?- -SOME PSEUDOMORPHS OF OPX MIGHT ALSO BE PRESENT. AMYGDALS ARE FILLED WITH DK.GREEN SMECTITE (7-10% OF THE ROCK), 4: 90-99 CM FRAGMENT OF TUFF BRECCIA SIGNIFICANTLY ALTERED HYDROTHERMALLY. CLASTS ARE LIGHT IN COLOR (5BG7/2) MATRIX IS OXIDIZED. SOME CLASTS ARE REPLACED W/EPIDOTE. DISSIMILATED PYRITE IS PRESENT IN MATRIX (HYDROTHERMAL PRODUCT) AS WELL AS IN CLASTS. EPIDOTE POSSIBLY PRESENT IN MATRIX, 5: ALSO, 5: 130-150 CM MATRIX CONSISTS OF LAPILLI TUFF TUFF BRECCIA. COMPOSITION OF SMALL CLASTS IN MATRIX- VARIES SIGNIFICANTLY-- OL-PL PHYRIC BASALTS,BASALTIC -ANDESITES W/OXIDIZED MATRIX,GLASS,PUMICE,HYDROTHER- MALLY ALTERED EXTRUSIVE ROCKS HARD* 59 451 45 CC 0.0 35.0 413.50 415.10 415.35 ZA VOLCANIC BRECCIA SAME AS DESCRIBED IN PREVIOUS SECT. AS PREV. SECT. HARD* 59 451 46 1 0.0 150.0 416.50 416.50 418.00 KS BOULDER CLASTS OF IGNEOUS ROCKS 5YR3/2-GREYISH BROWN 0-62 CM BOULDER CLASTS (MAINLY PL-OL PHYRIC BASALTS)--DESCRIBED UNDER M,62-128 CM (?) SEDIMENTRY BASALT BRECCIA,128-150 CM FINE SNDST WITH 5YR3/2 STAINING OR LOCAL MATRIX COMPONENT,62-150 CM PIECES 3-9 CM THICK PLAGIOCLASE-OLIVINE PHYRIC BASALTS MADE OF: PL 12-20%- EUHEDRAL PRISMATIC XSTALS (2-3 MM). LOCALLY BASALTS ARE ENRICHED W/PLAG PHENOCRYSTS 30-40% (BASALTIC ANDESITE? HIGH AL BASALT?). BIG (1.5X0.7 CM) PHENOS (XENOCRYSTS) OF PLAG OCCASIONALL Y ARE PRESENT,OL 2-5% SUBHEDRAL SLIGHTLY RESORBED 0.5-1 MM CRYSTALS,PSEUDOMORPHS OF OPX MIGHT ALSO BE PRESENT,GROUNDMASS HYALOPILITIC,GNDMSS OF ONE CLAST IS HIGHLY OXIDIZED AND DISPLAYS 5YR3/2 COLOR (SUB- AERAL WEATHERING?)* 59 451 46 2 0.0 150.0 416.50 418.00 419.50 KS BRECCIA 5Y2/1,5Y5/1,5GY4/1,5Y6/1 0-10 CM 5Y2/1 LAPILLI TUFF,10-18 CM FINE SS TUFF WITH 50 DEGREE DIP--ALSO CUT BY 50 DEG. DIPPING FAULT,18-48 CM BIOTURB. F.V.T. 5Y5/1 AND 2/1--NO CARBONATE,40-41 CM MED SS 5Y2/1 V.T.,44 CM 1 MM 5GY4/1 LAMINA,48-56 CM MED. SS VIT.,56-68 CM BIOTURB. 5Y5/1 AND 2/1 FINE- SAND-SIZED TUFF (48-68 CUT BY 60 DEG. DIPPING NORMAL FAULTS),68-73 CM CRSE SS V.T. 5Y2/1,73-79 5Y5/1 CALC. SS,79-89 CM MED SS 5Y2/1 V.T.,89-99 CM 5Y6/1 SS,99-112 CM MED SS 5Y2/1 DIPPING 20 DEG.,112-115 2 CM 5Y5/1 CALC LAYER--PENECONT. DSTRBD,115-121 CM MED -FINE 2/1 SS WITH 4/1 CLAY FLAME(?) STRUCT.,121-127 CM FAULTED 1 CM 2/1 FINE SS AND 5/1 CALC SS--3 MM DISPL AND BEDDING DIPS 20 DEG.,127-132 CM ABOVE IN PART(?) CTCT W/BELOW,132-150 CM GRADED V.T. LAYER-- BOTTOM 3 CM LAPILLI TUFF WHILE TOP IS MED-FINE SS VT ,WHOLE SECT. IS 2-9 CM PCS 0-10 CM 30% FORAMS,89- 99 CM FORAM-RICH,99-112 CM FORAMS <1%* 59 451 46 3 0.0 29.0 416.50 419.50 419.79 KS CRSE SDY VITRIC TUFF 5Y2/1 FEW PUMICE CLASTS UP TO 1CM PUMICE FEW LARGE FORAMS HARD* 59 451 47 1 0.0 145.0 423.00 423.00 424.45 JL VITRIC MICROBRECCIA - TUFF -MED.GREY,5Y2/1-BLACK ,5Y6/1,-WHITE,5BG5/1-BLUE GREY,-GREY 0-8 CM VITRIC MICROBRECCIA MED. GREY COLOR OVERALL--5Y2/1 V.F. GRND ASH MATRIX WITH 5Y6/1 PUMICE CLASTS (UP TO 5 CM ). PREFERRED ORIENTATION AT RT. ANGLES TO CORE AXIS- -?BEDDING. CLASTS SUBROUNDED MANY TABULAR,8-30 CM CRSE 5Y2/1 SS--ASH AND LAPILLI MOSTLY MASSIVE. FAINT PALER GREY BANDING.30-63 CM PUMICE V.C. SAND TO GRANULE SIZE (CRSE VITRIC TUFF -- FINE MICROBRECCIA) MED.GREY AS IN TOP 8 CM. CLASTS UP TO 5 CM. COARSES T CENTRE UNIT (41-45 CM). CLASTS ANGULAR TO SUBRND. MOSTLY EQUIDIMENSIONAL. BDDY DIPS 20 DEG. ALSO HAVE 5BG5/1 CLASTS,63-145 CM CRSE VITRIC TUFF: V.C. GRND W/SCATTERED GRANULES. RARE THIN GRANULE LAYER 1 CM THICK AT 90-92 CM. RK 5Y2/1 POORLY SORTED SUBANGULAR TO SUBROUNDED. COMPOSITION PRESUMABLY 5Y2/1 ASH GREY GRAINS UP TO 15%, <5% BASALT CLASTS,RARE RED BRN (?ANDESITE) CLASTS,133-137 CM FINE TO V.FINE VITRIC TUFF WITH ?BIOTURB. MOTTLES PUMICE,BASALT 8-30 CM TR TO 1% WHITE ?BIOGENIC GRAINS,63-145 CM TR-1% WHITE SPECKS ?ORGANIC HARD* 59 451 47 2 0.0 72.0 423.00 424.50 425.22 JL CONGLOMERATE 5Y2/1-BLACK,-MED.GREY,-WHITE 5Y2/1 CONG.,VARYING FROM FINE GRANULE (2-4 MM) TO FINE TO MED. PEBBLE SIZE,MATRIX MED. TO CRSE SAND + BLACK ASH,CLASTS: ANGULAR TO SUBANGULAR (MOSTLY EQUIDIMENSIONAL) SOFT PALE TO MED.GREY (?TUFF) FRAGS ,VARIETY OF APHANITIC DENSE TO VESICULAR BASALTS, UNIT COARSEST AT 32-37 CM,VAGUE CRUDE ORIENTATION OF SOME TABULAR CLASTS (MAINLY UNORIENTED),WHITE FRAG AT 35 CM--?ORGANIC BASALT,TUFF* 59 451 47 CC 0.0 16.0 423.00 425.46 425.52 JL TUFF N4-MED.DK.GREY,-BLACK,5Y2/1-BLK,N6-PALE GY 3 ROLLERS: (1) N4 TUFF W/BIOGENIC ADMIXTURE (5:2)- -BIOTURBATION. FOUR RND BLK FINELY VESICULAR BASALT CLASTS (3-4 CM DIA). RK SLI. CALCAREOUS,(2) 5Y2/1 V. F.GRND SLI. CALC. TUFF CONTAINING FOSSILS,(3) N6 V.F .GRND TUFF BASALT (1) ?FORAMS-RARE,(2) LG. WHITE GASTROPOD X-SECTION 2 CM. FORAMS ALSO,(3) RARE FORAMS 33133000 59 451 48 CC 0.0 20.0 432.50 432.60 432.70 JL TUFF -LT.GREY,-MED.GY,N4-GY,N5-GY (1) PCS OF MICROBRECCIA AS IN CORE 47 SEC.2,(2) PCS OF LT. TO MED. GREY V.F.TUFF AS IN 47 CC,(3) 1 LG. GREY (N4-N5 ) V.F. GRND TUFF W/SOME BIOTURB. GRAIN AND COLOR GRADATION--V.F. IS LIGHTER GY TO DK. GY COARSER TUFF ,ONE CTCT (EROSIONAL) ABRUPT BTW TUFF AND FINE TO MED. TUFF SAND HIGH. DEF. (3) HAS 30% BIOGENIC COMPONENT 33133000 59 451 49 1 0.0 39.0 442.00 442.00 442.39 JL TUFF 5Y2/1 FRAGMENTS OF BLK 5Y2/1 V.F. GRND TUFF W/F TO MED LAMINAE AND X-BEDS BIOGENIC COMPONENT 10% 33133000 59 451 49 CC 0.0 22.0 442.00 442.49 442.61 JL TUFF N4-MED.DK.GREY 3 FRAGS OF CALC. N4 BIOTURBATED V.F. GRND TUFF PELAGIC FORAMS (ORBULIN A--MID-MIOCENE) AND NANNOS WHICH MAY BE UP TO 20 OR 25% OF ROCK 33133000 59 451 50 CC 0.0 10.0 451.50 451.60 451.60 JL VITRIC TUFF 5Y2/1-BLK,-WHITE 2 PCS. 5Y2/1 MED GRND V.T.,MASSIVE,STRUCTURELESS HIGH. DEF. 2% WHITE ORG GRAINS--INCLUDING BENTHONIC FORAMS HARD 33133000 59 451 51 CC 0.0 10.0 461.00 461.10 461.10 JL VITRIC TUFF 5Y2/1-BLK,-ORANGE RED FRAGS,FINE V.T. F-M GRND,BURROWED,FAINT LAMINS,SLI. CALC.,1 FRAG BLK MED GRAINED V.T. HIGH DEF. BOTH FRAGS HAVE 5% BRIGHT ORANGE RED GRAINS--COMP. UNKNOWN F.V.T. HAS FORAMS--ORBULINA HARD 33133000 59 451 52 1 0.0 5.0 470.50 470.50 470.55 JL MICROBX -MED.GREY,-BLK,5BG5/1-BLUE GREY GRANUL E TO SMALL PEBBLE SIZE,MATRIX BLK V.F. TUFF,MAJORITY OF CLASTS GRANULE SIZE COMPOSED OF 5BG5/1 SUBANG. TO SUBRND. TUFF OR GLASS 2 LARGE PEBBLE CLASTS: ONE MED.GY SOFT GLASS TUFF,THE OTHER BLK APHANITIC BASALT GLASS TUFF,APHANITIC BASALT,TUFF,GLASS HARD 33219000 59 451 52 1 5.0 85.0 470.50 470.55 471.35 JL VITRIC TUFF 5G2/1-DK.GREEN BLACK,-WHITE,5BG5/1- BLUE GREY MED. GRAINED WITH INTERVALS (AT TOP) OF COARSE TO VERY COARSE GRAINS,COLOR IS 5G2/1 FINELY SPECKLED W/FINE WHITE GRAINS (?CARB ?PUMICE?),FAINT BEDDING (30 DEG. DIP),SCATTERED SMALL 5BG5/1 GRANULE S OF TUFF OR GLASS (AS ABOVE) ?CARB.,?PUMICE HARD CUTTING ON SAW. VERY COMPACT AND DENSE HARD* 59 451 52 1 85.0 100.0 470.50 471.35 471.50 JL MICROBX 5B4/1-MED.GREY,-MED.GY,-PALE GY,-BLK, -RED BRN V.CRSE SAND TO GRANULE SIZE,5B4/1 COLOR, CLASTS ANGULAR TO SUBROUNDED,POORLY SORTED AND UNORIENTED,LIKE TOP UNIT OF 47-1 (0-8 CM),RARE LG. CLASTS OF PALE GY. TUFF CLAST COMPOSITION: MED. TO PALE GREY TUFF OR GLASS 60%,BLK TUFF? BASALT 20%, MATRIX 15%,RED.BRN. (?ANDESITE) TRACE-<1% HARD* 59 451 52 CC 0.0 5.0 470.50 471.64 471.59 JL TUFF N1-BLK,N3-DK.GRY,-WHITE SOME MICROBX AS IN 85-100 CM OF 52-1?,ONE PIECE N1-N3 TUFF,VERY FINE GRAINED,CALCAREOUS,VAGUELY BEDDED (20 DEG. DIP), SOME ZONES SPECKLED W/MINUTE WHITE (?CARB),NEAR BASE IS 1 CM GRADED ZONE W/ABRUPT LOWER CONTACT ON UNDER LYING VERY FINE BLACK TUFF BIOGENIC PALER GREY BLEBS IN BIOTURBATED UPPER PART OF PIECE,SPARSE FORAMS IN ZONE NEAR BASE* 59 451 53 1 0.0 103.0 473.50 473.50 474.53 JL VITRIC TUFF 5G2/1-GREENISH BLK,5BG5/1 FINE TO MED GRND 5G2/1 V.T. (AS IN 52-1 5-85 CM),GRAINS ARE ANGULAR TO SUBANGULAR AND UNORIENTED,MASSIVE WITH NO APPARENT BEDDING,BECOMES COARSER AT ABOUT 80CM W/ VERY CRSE AND GRANULE SIZE FRAGS OF 5BG5/1 TUFF? PUM PUMICE? (CLASTS UP TO 3 MM),PRESUMABLY A GRADATIONAL TACT INTO COARSE UNIT BELOW ?PUMICE,TUFF HARD* 59 451 53 1 103.0 150.0 473.50 474.53 475.00 JL LAPILLI 5G2/1-GREENISH BLACK,5BG5/1-PALER GREEN GREY,N4-MED.GREY 5G2/1 MATRIX (AS ABOVE) BUT WITH 20% SUBANGULAR TO SUBROUNDED CLASTS (UP TO 1 CM AVE. 0.5 CM) OF 5BG5/1 TUFF AND BASALT AND IRREGULAR BLEBS OF PUMICE (UP TO 2 CM),LARGE COBBLES (UP TO 8 CM) OF N4 VESICULAR BASALT (SOME W/ALT. MARGINS) BTW 103 AND 135 CM TUFF,PUMICE,BASALT,VESICULAR BASALT (SOME W/ALT MARG.) HARD* 59 451 53 2 0.0 72.0 473.50 475.00 475.72 JL CONGLOMERATE (LAPILLI) 5G2/1-GREENISH BLACK AS IN 53-1 103-150 CM LG. COBBLE 5G2/1 SPARSELY VESICULAR PORPHYRITIC BASALT,PHENOCRYSTS UP TO 3 MM CLINOPYROXINE-PLAGIOCLASE (OLIVINE) BASALT* 59 451 53 CC 0.0 20.0 473.50 475.85 475.95 JL CONGLOMERATE (LAPILLI) AS IN 53-2 ONE LG. COBBLE OF PORPHYRITIC VERY VESICULAR (VESICLES TO <1 MM) BASALT PORPHYRITIC VESICULAR BASALT* 59 451 54 1 0.0 142.0 480.00 480.00 481.42 KS BRECCIA(?) -MED.DK.GREY WHOLE SECTION IS PCS 2-8 CM THICK,C/M RATIO IS 1/2,CLASTS IN MATRIX ARE 3 MM W/ZEOLITIC AND CARBONATE CEMENT (80% ZEOL 20% CARB),SOME OLIVINE CLASTS (1 MM) 5% OF ROCK,BIG CLASTS 39-48,68-78,AND 105-139 CM 8X70 MM CHALCEDONIC VEIN FILLING WITH DISCONTINUOUS CALCITE MARGINS COMPOSITION OF BIG CLASTS: MAINLY UNIFORM AND PRESENTED BY PLAGIOCLASE OLIVINE PHYRIC VESICULA R BASALT OF MED.DK.GRY COLOR,PL 30%- SHORT PRISMS + TABULAR GRAINS (1-1.5 MM),OL 5-7%- IRREGULAR ISOMETRIC GRAINS SLIGHTLY RESORBED (<1 MM),GROUNDMSS FINE-GRAINED POSSIBLY HYALOPILITIC,VESICLES 15%- SPHERICAL OVAL AND IRREG. IN SHAPE--MOST COMPLETELY EMPTY BUT SOMETIMES LINED W/THIN FINE CRYSTALLINE COVER OF ZEOLITES + CLAY(?) + CARBONATES,BASALTS ARE RARELY VEINED W/AMORPHIC (AMORPHOUS) ZEOL. (0.5-0.7 CM THICK),ALSO OLIVINE,CALCITE,AND CHACEDONY PRESEN T IN ROCKS* 59 451 54 2 0.0 142.0 480.00 481.50 482.92 KS BRECCIA(?) 1-1U CM PIECES,FOR DESC. OF MATRIX SEE SECT.1,BIG BASALT CLASTS 0-8 12-25 73-77 AND 85- 93 CM,COMPOSITION OF BIG CLASTS IS SAME AS PREVIOUS SECT.,NOTEWORTHY IS CONSTANT PRESENCE OF OLIVINE FRAGS IN MATRIX BASALT (PLAG.AND OL.),OLIVINE* 59 451 54 2 142.0 150.0 480.00 482.92 483.00 KS MED-CRSE GND VITRIC TUFF -WHITE ALTERED,20% WHITE ZEOLITE AND CALCITE IN MATRIX,1-11 CM PCS ZEOLITE,CALCITE HARD* 59 451 54 3 0.0 150.0 480.00 483.00 484.50 KS VITRIC TUFF EXCEPT WHERE OTHERWISE INDICATED-- SAME AS V.T. OF SECT.2,0-112 CM 4-19 CM THICK PCS, 35-65 CM MED-FINE GRAINED ALTERED V.T. (ZEOL.+CALC. SPECKS <1%,112-120 CM SMALL PIECES,120-130 CM SINGLE PIECE OF SAME VITRIC TUFF,130-150 CM SM. PCS. ZEOLITE,CALCITE HARD* 59 451 54 4 0.0 150.0 480.00 484.50 486.00 KS MED-CRSE GRAINED ALT VITRIC TUFF SAME AS SECT.2 AND 3,CONSISTS OF PIECES 1 TO 31 CM LONG HARD* 59 451 54 CC 0.0 20.0 480.00 486.10 486.20 KS MED-CRSE GRND ALT VITRIC TUFF SAME AS BEFORE ALT. GLASS (MONTMORILLONITE? SMECTITE?),SOME PIECES OF ALT. PUMICE CONTAIN BUBBLE FILLINGS OF CALCITE W/AN INTERFERENCE CROSS UNDER POLARIZED LIGHT ALT. TUFF,GLASS,AND PUMICE,CALCITE HARD* 59 451 55 1 0.0 106.0 489.50 489.50 490.56 KS SEDIMENTARY BASALT BRECCIA 5GY2/1-GREENISH BLACK CLAST/MATRIX RATIO IS 2:1,CLASTS ARE OF 3 TYPES (SEE M FOR DETAILS),CLASTS ARE ANGULAR TO ROUNDED OF AVE 0.5X0.5 AND MAX 1X1 CM SIZE,MATRIX COMPOSITION: SMALL CLASTS OF SAME COMPOSITION AS BIG + ALT. GLASS (REPLACED W/GREEN SMECTITE)--CEMENTED W/ZEOL AND CARB. CLASTS ARE: A) PL-PHYRIC BASALTIC ANDESITES (HIGH AL BASALTS?), B) APHYRIC BASALTS (BASALTIC ANDESITES?),AND C) ANDESITE W/HIGHLY OXIDIZED GROUNDMASS,MATRIX HAS ALT. GLASS (SMECTITE) ,ZEOLITES AND CARBONATES* 59 451 55 1 106.0 150.0 489.50 490.56 491.00 KS MED-FINE GRAINED ALTERED VITRIC TUFF 5GY2/1 TOP OF GRADED UNIT-95CM-SECT.2 HARD* 59 451 55 2 0.0 150.0 489.50 491.00 492.50 KS ALTERED VITRIC TUFF 0-36 CM MED-FINE ALT. V.T., 36-73 CM MED-CRSE ALT. V.T.,73-95 CM SEDIMENTARY BASALT BRECCIA AS IN SECT.1,95-150 CM MED-CRSE ALT. V.T. BASALT HARD* 59 451 55 3 0.0 150.0 489.50 492.50 494.00 KS SEDIMENTARY LAPILLI LITHIC TUFF 10R4/2-GREYISH RED VITRIC AND LITHIC TUFFS (<2 MM) 0-5 CM,FINE VITRIC TUFF 5-10 CM,SEE M FOR CLAST COMP. 4X3 CM CLAST OF ANDESITE AT 50 CM,SPARSELY PLAG. PHYRIC FINE-GRAINED 10R4/2,GRNDMSS--APHANITIC HIGHLY OXIDIZED COMP. OF SMALL CLASTS: PL-PHYRIC ALTERED BASALTS,APHYRIC BASALTS,PLAGIOCLASE AND OLIVINE XSTALS,ALT. GLASS,HYDROTHERMALLY ALT. VOLCANICS WITH DISSIMINATED PYRITE,ANDESITE CLAST AT 50 CM* 59 451 55 CC 0.0 24.0 489.50 494.10 494.24 KS LAPILLI TUFF SAME AS AT LOWER PART OF PREVIOUS SECTION* 59 451 56 1 0.0 150.0 499.00 499.00 500.50 ZK LAPILLI TUFF 25 DEG. DIP AT 10 CM,VITRIC AND LITHIC TUFFS (1/4 MM) 10-96 CM,COARSER TUFF (1/2 TO 1 MM) 96-104 CM,GRAIN SIZE INCREASES FROM TUFF DOWN TO COARSER TUFF* 59 451 56 2 0.0 150.0 499.00 500.50 502.00 ZK VITRIC AND LITHIC TUFFS 0.5-1 MM SIZE 0-55 CM, FINE VITRIC TUFF LAYER 55-60 CM,0.5 MM SIZE AND SOME GRADED BEDDING 60-102 CM,INTERBEDDED LAPILLI AND V. AND L. TUFFS (0.5 MM) 102-132 CM HARD* 59 451 56 3 0.0 150.0 499.00 502.00 503.50 ZK TUFFS -BLACK 0-45 CM VITRIC AND LITHIC TUFFS (0.5-1 MM),45-70 CM FINE VITRIC TUFFS (<0.5 MM),70- 103 CM LAPILLI TUFF LAYER WITH CLAST INCREASING IN SIZE DOWNWARD FROM 1 MM AT THE TOP TO 1-3 CM AT BTM, 103-145 CM VITRIC AND LITHIC TUFFS W/SOME GRADED BEDDING BLACK STRIPES? (0.5-1 MM THICK) AT 5 AND 9 CM--LIGNITE COMPOSITION OF RELATIVELY BIG FRAGS (AT 100 CM): VESICULAR APHYRIC BASALTS (BASALTIC ANDESITES),PL-PHYRIC BASALTS,ALT. GLASS AND PUMICE, SOME FRAGS. ARE HYDROTHERMALLY ALT. AND CONTAIN SMALL GRAINS OF DISSIMILATED PYRITE,LIGNITE,TUFF* 59 451 56 4 0.0 76.0 499.00 503.50 504.26 TUFF 0-5 CM VITRIC LITHIC TUFFS (1 MM),5-15 CM FINE VITRIC TUFF,15-76 CM VITRIC AND LITHIC TUFFS TO LAPILLI TUFF W/NO EVIDENT SORTING,MAX PIECE SIZE 5X5 CM,CLASTS ARE VESICULAR BASALTS,PUMICE,ALT. GLAS VESICULAR BASALTS,PUMICE,ALTERED GLASS* 59 451 56 CC 0.0 25.0 499.00 504.36 504.51 VITRIC AND LITHIC TO LAPILLI TUFF SAME AS SECT.4 HARD* 59 451 57 1 0.0 35.0 508.50 508.50 508.85 ZK LAPILLI TUFF TO SEDIMENTARY VOLCANIC MICROBRECCIA AVE SIZE OF CLASTS IS 3X4 MM 1-6 CM HYDROTHEMALY ALTERED LITHIC TUFF 5X4 CM COMPOSITION OF CLASTS: APHYRIC ALTERED BASALTS,ALTERED PUMICE,ALT. GLASS, ALT. BASALTS W/OXIDIZED MATRIX HARD* 59 451 57 1 35.0 118.0 508.50 508.85 509.68 ZK VITRIC AND LITHIC TUFF 0.5-1 MM,W/OCCASIONAL THIN INTERBEDDING OF LAPILLI TUFFS HARD* 59 451 57 1 118.0 150.0 508.50 509.68 510.00 ZK LAPILLI TUFF TO SEDIMENTARY VOLCANIC MICROBRECCIA SAME COMPOSITION AND CLAST SIZE AS AT THE TOP OF THIS SECTION (57-1 0-35 CM)* 59 451 57 2 0.0 150.0 508.50 510.00 511.50 KS MEDIUM TO COARSE VITRIC-LITHIC TUFF 5Y2/1-BLACK 0-5 CM GRADED MICROBRECCIA (LARGEST CLAST 0.6 CM), 15-18 AND 53-58 CM FINE VITRIC TUFF,67-76 CM HAS FEW 6 MM LAPILLI PIECES 2 TO 10 CM LONG 7X10 ANG. PUMICE FRAG,1.5X2.3 CLAST OF ALTERED FVT AT 122 CM, PUM: AT 115 CM PUMICE,ALTERED FVT HARD* 59 451 57 3 0.0 89.0 508.50 511.50 512.39 KS COARSE VITRIC-LITHIC TUFF (OR TUFFACEOUS SANDSTONE ) 5Y5/1 28-33 CM MICROBRECCIA (MAX CLAST DIA 7 MM),33-67 CM SMALL BROKEN FRAGS. OF FINE VITRIC TUFF AND BRECCIA,67-77 CM VITRIC-LITHIC COARSE TUFFACEOUS SANDSTONE W/FEW 3 MM CLASTS WEAR BASE,82-89 CM 5Y5/1 TUFF. LST? MED-FINE SS CORE WAS DESCRIBED BY KSR AND GZ (ALL SECTIONS) HARD* 59 451 57 CC 0.0 16.0 508.50 512.49 512.55 KS TUFF 0-3 CM BRECCIA,3-16 CM VITRIC TUFF* 59 451 58 1 0.0 135.0 518.00 518.00 519.35 KS LITHIC-LAPILLI BRECCIA 5G2/1,5Y5/1 5G2/1 BRECCIA,C/M RATIO 2/1,ANG-SUBANG CLASTS W/AVE. SIZE 3-4 MM,CLASTS: BASALTS 45%,PUMICE 15%,ALT.GLASSY BASALT+GLASS 35%,OXID ANDESITES 5%,MATRIX: FINER GRAINED AND CEMENTED W/ZEOL AND CARB.,54-63 AND 75-81 CM 5Y5/1 FINE V.T. CLAST BASALTS,PUMICE,ALT. GLASSY BASLT,GLASS,OXID. ANDESITES,ZEOLITES,CARBONAT ES ALSO DESCRIBED BY GZ* 59 451 58 1 135.0 150.0 518.00 519.35 519.50 KS FINE VITRIC TUFF W/CALC MATRIX 5Y5/1 HARD* 59 451 58 2 0.0 114.0 518.00 519.50 520.64 KS FINE VITRIC TUFF 5Y6/1,5Y4/1,N4.5-GREY,5G4/1, 5G5/1,5Y3/1 11-19 CM 5Y6/1 CALC. F.V.T. INTENSELY MOTTLED 6/1 AND 4/1 4-19 CM,26-38 CM LAYERED AND FINELY LAMINATED 5Y6/1 F.V.T. DIPPING 30 DEG. (NANNO CHALK),38-45 CM N4.5 LAMINATED F.V.T. DIPPING 20 DEG.,45-51 CM LITHIC AND VITRIC CALC MICROBRECCIA, 51-58 CM N4.5 LAMINATED F.V.T.,58-66 CM MICROBRECCIA AS IN 45-51 CM,67-72 CM 5Y6/1 F.V.T.,72-78 CM INTENSELY BIOTURBATED 5Y6/1 + 5G4/1 (CALC.),82-87 CM 5G5/1 LAMINATED FVT,88-95 CM 5Y5/1 F.V.T. (NANNO- RICH TUFF),95-113 CM 5Y3/1 F.V.T. FORAMS 4-19,67- 72,AND 88-95 CM,NANNOS 26-38 AND 88-95 CM HARD* 59 451 58 CC 0.0 37.0 518.00 520.74 521.01 KS 5 PIECES OF FINE-GRAINED MICRO PLAG OL. PHYRIC BASALT SLIGHTLY HYDROTHERMALLY ALTERED,FINE GRAIND ,ONE PIECE CONSISTS OF FINE VITRIC TUFF PL 30%- SHORT PRISMATIC XSTALS (0.5-1 MM) SOMETIMES SLIGHTLY RESORBED,OL 2-5%- ANHEDRAL XSTALS IRREGULAR (<0.5MM )MAINLY AS PSEUDOMORPHS--SOME PYROXENE MIGHT BE PRES ENT,GROUNDMASS:VERY FINE GRAINED--APHANITIC,HYDROTHE RMALLY ALT. CONTAINS DISSIMILATED PYRITE HARD* 59 451 59 1 0.0 150.0 527.50 527.50 529.00 Z SEDIMENTARY VOLCANIC BRECCIA C/M IS 4:1,CLASTS: SUBANGULAR SUBROUNDED 0.5X0.1 CM (AVE.) W/NO EVIDENC E OF SORTING OR ORIENTATION. COMPOSITION: APHYRIC BASALTS 50% PL-PHYRIC BASALTS 10% ANDESITES?-WITH OXIDIZED MATRIX 10% ALTERED PUMICE 10% ALTERED GLASS AND GLASSY BASALTS 10%,MATRIX: PIECES OF ALT. BASALTS--ANDESITES--GLASS CEMENTED W/CARBONATE AND ZEOL. BRECCIA BIG PLAG-SPARSELY OLIVINE PHYRIC HYDROTHERMALLY ALT. BASALTIC ANDESITE AT 48-66 CM, COMPOSITION IS: PL 30% (0.5-1 MM) OLIVINE 1-2% PSEUDOMORPHS (0.5 MM) SOME PYROXENE MIGHT ALSO BE PRESENT AS PHENOCRYSTS--GROUND MASS IS VERY FINE GRAINED APHANITIC W/DISSIMINATED PYRITE (VESICLES 10%) BASALTS,ANDESITES,ALT. PUMICE AND GLASS,PLAG, OLIVINE,PYROX (MAYBE),PYRITE HARD* 59 451 59 2 0.0 80.0 527.50 529.00 529.80 Z SEDIMENTARY VOLCANIC BRECCIA CLAST:MATRIX IS 5:1 ,CLASTS ARE SUBANGULAR TO SUBROUNDED 5X4 CM (MAX) AND 1X2 CM (AVE) CLASTS: PL-PHYRIC BASALTS 30%, BASALTIC ANDESITE W/OXIDIZED GROUNDMASS 10-20%,ALT. APHYRIC (?) AND VARIOLITIC BASALTS--PUMICE--GLASS 50%,MATRIX: SAME AS CLASTS BUT MORE FINE GRAINED (<0.5 MM) HARD* 59 451 59 CC 0.0 32.0 527.50 529.90 530.12 Z SED. VOLC. BRECCIA(?) SAME AS PREVIOUS(?) HARD* 59 451 60 1 0.0 150.0 537.00 537.00 538.50 KS BRECCIATED TUFF N4-MED.DK.GY,N2-BLK,N3-DK.GY, 5Y4/2,5Y5/2,-RED,5Y5/1,5YR2/1-BLK,N1,-BLK WHOLE CORE CONSISTS OF PIECES,0-5 CM BIOTURBATED N4 AND N2 FVT,21-25 CM BLK VITRIC-LITHIC TUFF,28-35 CM LITHIC -VITRIC MICROBRECCIA W/OXID ANDESITE CLASTS (<1%), 35-41 CM MED-CRSE LITHIC-VITRIC TUFF,41-48 CM N3 FVT ,48-58 CM BIOTURBATED 5Y4/2 + 5/2 FVT,58-64 CM MED- CRSE SS W/FEW 1 CM PUMICE CLASTS,64-69 CM GRANULE- SIZED LITH-VITRIC MICROBRECCIA W/1% OXIDIZED ANDESIT E (RED) CLASTS,69-90 CM BLACK AND N4 FVT--LARGE BURROW AT 77 CM,90-99 CM BIOTURBATED 5Y5/1 AND BLK FVT,99-111 CM MED-CRSE SS LITHIC-VITRIC TUFF,111-123 CM PIECES OF 5YR2/1 FVT,123-127 CM FVT,127-130 CM VIT-LITH TUFF--CRSE SS,130-142 CM FINE SS SIZED N1 FVT PLAG. PHYRIC BASALT 8-11 CM PLAG. PHYRIC BASALT,PUMICE,ANDESITE (OXIDIZED) 142-150 CM VOID* 59 451 60 2 0.0 104.0 537.00 538.50 539.54 KS TUFF -BLK,5G4/1,5Y4/1,5Y5/1 0-10 CM BLK FVT, CIRCULAR 5G4/1 PATCH 7-8 CM,5Y4/1 LIMESTONE 9-10 CM, PENECONTEMPORANEOUS STEP FAULTING (12 AND 18 MM DISP ) AT 11 CM (STEP UP LFT-RT),13-26 CM VITRIC-LITHIC TUFF GRADING UP FROM MED-CRSE TO MED-FINE,26-65 CM GRADED LITHIC-VITRIC MICROBRECCIA,90-104 CM 5Y5/1 CALCAREOUS FVT DRILLING BRECCIA 65-90 CM,REST UNDISTURBED (?) LIMESTONE* 59 451 60 CC 0.0 30.0 537.00 539.67 539.87 KS TUFF 4-9 CM COARSE LITH-VIT TUFF 9-30 CM DRLG BRECCIA* 59 451 61 1 0.0 35.0 546.50 546.50 546.85 Z SEDIMENTARY VOLCANOCLASTIC MICROBRECCIA CLASTS- MATRIX IS 3:1,CLASTS ARE ANGULAR TO SUBANGULAR 0.5X0 .5 MM AVE (1X1 CM MAX) COMPOSITION: ALT. BASALTS (BASALTIC ANDESITES?),PUMICE,ALT. GLASS HARD* 59 451 61 1 35.0 75.0 546.50 546.85 547.25 Z TUFF SEDIMENTARY UNIT GRADED DOWN FROM VITRIC AND LITHIC TUFF (<0.50 MM) TO THE TUFF WITH THE SAME COMPOSITION BUT GREATER GRAIN SIZE (0.5-1 MM)* 59 451 61 1 75.0 150.0 546.50 547.25 548.00 Z TUFF FINE GRAINED TUFF DISTURBED BY BIOTURBATION (<0.2 MM) GRADING DOWN INTO COARSER VITRIC AND LITHIC TUFF (1-1.5 MM BELOW 132 CM)* 59 451 61 2 0.0 150.0 546.50 548.00 549.50 Z TUFF 0-50 CM VITRIC AND LITHIC TUFF (0.5X0.7 CM AVE 1.5X1 CM MAX)--COMPOSITION SAME AS AT THE BASE OF PREVIOUS SECTION,50-130 CM FINE VITRIC TUFF LAMINATED (<0.25 MM) LOCALLY (1 MM THICK),130-150 CM VITRIC AND LITHIC TUFF (0.5X0.5 CM AVE 1X1.5 CM MAX )--COMP. SAME AS BASE OF PREV. SECT. CLAST OF VESICULAR PL-OL PHYRIC ALT. BASALT (BASALTIC ANDESITE) 6X3 CM AT 108-114 CM PL-OL ALT. BASALT* 59 451 61 3 0.0 25.0 546.50 549.50 549.75 Z SEDIMENTARY VOLCANOCLASTIC MICROBRECCIA C/M IS 1:2,CLASTS ARE 3X2 (MAX),MATRIX 0.5X0.5 CM AVE COMPOSITION: CLASTS: PL-OL PHYRIC BASALTS,PUMICE, VESICULAR APHYRIC BASALTS AND BASALTIC ANDESITES W/OXIDIZED GROUNDMASS,MATRIX: FRAGS OF SAME COMPOS. AS CLASTS CEMENTED W/ZEOLITES HARD* 59 451 61 CC 0.0 27.0 546.50 549.85 550.02 Z SED. VOLCANOCLASTIC MICROBRECCIA CLASTS 3X2 CM MAX,MATRIX 0.5X0.5CM AVE HARD* 59 451 62 1 0.0 28.0 556.00 556.00 556.28 JL W.D. VOLCANIC BRECCIA N1-BLACK,5G2/1-GREENISH BLK WATER DEPOSITED VOLC. BRECCIA,VITRIC AND LITH. CLASTS (1:1 RATIO),C:M RATIO IS 3:1,UNSORTED AND UNORIENTED 1-2 MM DIA (MAX DIA 1.5-2 CM) CLASTS,N1 TO 5G2/1,MATRIX--VITRIC TO F.V. TUFF TUFF HARD* 59 451 62 1 28.0 42.0 556.00 556.28 556.42 JL CRSE BASAL CLASTS OF THE BRECCIA SEVERAL LARGE COBBLE SIZE CLASTS OF LITHIC AND VOLC. COMP.* 59 451 62 1 42.0 150.0 556.00 556.42 557.50 JL FINE VITRIC TUFF N3-DK.GREY,5G2/1-GREENISH GREY F.V. TUFF IN PLACES COARSER (MED. SAND),CLASTS ARE VITRIC:LITHIC = 3 OR 4:1,COLOR-N3 TO 5G2/1,BECOMES MUCH FINER DOWN SECTION WHERE RECOVERY IS FRAGMENTAR Y,DIA SIZE 0.25-0.50 MM,MAX DIA 2MM HARD* 59 451 62 2 0.0 150.0 556.00 557.50 559.00 JL FINE VITRIC TUFF N2-GREYISH BLK,5G2/1-DK.GREENSH BLK CRSR ZONES TOP 10 CM AND 45-100 CM,4-12 CM IS SEGMENT W/FAULT IN IT,BOTH VITRIC AND LITHIC CLASTS (FORMER PREDOM.),FINE V.T.PORTIONS AV. SIZE--SILT TO V.F.SAND,CRSR FRACT. 1/4-1 MM HARD* 59 451 62 3 0.0 57.0 556.00 559.00 559.57 JL FINE TO VERY FINE VITRIC TUFF N2-GREYISH BLACK, 5G2/1-DK.GREENISH BLK COMP. AS IN SECT.2 MUCH MUDDY DRILLING DEBRIS HARD* 59 451 62 CC 0.0 25.0 556.00 559.75 559.90 JL FINE VITRIC TO VITRIC TUFF 5GY2/1-GREENISH BLK 4 PCS ALTOGETHER,APPEAR TO HAVE BEEN 2 PIECES EACH SPLIT IN HALF AND BOTH APPEAR TO BE SPHEROIDALLY WEATHERED,FRESH V.T. IN CENTER SURROUNDED BY SOFT CONCENTRIC 5GYI/1 LAMINAE OF SAME COMP. AS V.T. PROBABLY A DRILLING PHENOMENON HARD* 59 451 63 1 0.0 150.0 565.50 565.50 567.00 JL COARSE VITRIC TUFF TO FINE (GRANULE SIZE) MICROBRECCIA 5GY2/1-GREENISH BLACK IN MICROBREC. PORTIONS CLASTS: MATRIX = 1:1,VITRIC:LITHIC = 1-2:1, CLASTS MED. SUB-ANGULAR,FVT ZONES AT 30-40 AND 62-64 CM(LATTER HAS A SUGGESTION OF CURRENT BDDY) HARD* 59 451 63 2 0.0 103.0 565.50 567.00 568.03 JL GRANULE SIZE MICROBRECCIA AS IN SECT.1,GRADING DOWN (FROM ABOUT 58 CM) TO COARSE VITRIC TUFF, BOTTOM 1.5 CM FINE GRANULE MICROBRECCIA W/ANGULAR 1.4 MM (AVE) CLASTS (VITRIC:LITHIC = 3:1),ABRUPT CONTACT W/UNDERLYING SEDIMENT AT 103 CM HARD* 59 451 63 2 103.0 143.0 565.50 568.03 568.43 JL MDSTN,TUFF N4-MED.DK.GREY,N5-MED.GREY,-GREENISH GREY,N3-DK.GREY,N2-GREYISH BLK,5G6/1-GREENISH GREY 103-106 CM N4 NON-CALC MUDSTONE W/MULTIMINERALIC 0.5 CM BASE,SHARP UPPER AND LOWER CONTACTS,106-113 CM N4-N5 CALCAREOUS F.V.T. W/BIOTURBATION (0.5 MM WHITE SPHERES),113-116 CM INTRA FM. BX--MATRIX AS IN 106-113 W/1-3 MM ANGULAR GREENISH GREY LITHIC CLASTS,116-122 CM N3 BIOTURBATED SLI. CALC. V.F. LITHIC TUFF,122-130 CM CALC F.V.T. AS IN 106-113, 130-133 CM N2 ULTRA FINE NON-CALC ?CLAYSTONE,133-143 CM AS IN 116-122:CALCAREOUS PENECONTEMP FLOW BIOTUR BATED F.V.T. W/DISTURBED THIN 5G6/1 LAMINAE (TUFF) WHOLE PART HAS 15-20 DEGREE DIP 106-113 CM 0.5 MM WHITE SPHERES ?REXALLIZED FORAMS, FORAMS OCCUR AT BASE JUST ABOVE BX ZONE,133-143 CM FORAMS (ORBULINA) IN BASAL 2-3 CM HARD* 59 451 63 3 0.0 137.0 565.50 568.50 569.87 JL VERY FINE VITRIC TUFF N5-MED.GREY,N6-LIGHTER GRY ,5G2/1-GREEN BLACK,5BG3/2-DUSKY DK. GREEN,5GY4/1-GR. GREY,-RED BRN,-GREY,-DK.GREY VERY F.V.T. (N5) WITH ZONES OR INDISTINCT INTERVALS OF N6--CALC. W/ABUND. BIOTURBATION AND BURROWS,DIP 20 DEG.,0-2 4-6 AND 34- 44 CM 5G2/1 TO 5BG3/2 VITRIC MICROBRECCIA W/WELL SORTED ANGULAR CLASTS--CLASTS:MATRIX = 6:1.VITR:LITH IS 2:1. DIA SIZE 2-4 MM.RANGE 1-5 MM,91-94 CM 5GY4/1 WELL-SORTED (1 MM DIA) VITRIC TUFF (MAIN INGREDIENT IS PUMICE CLASTS) W/ABUNDANT RED BRN ?ANDESITE GRAINS,100-125 CM DRLG RUBBLE OF GREY CALC TUFF,125-137 CM CALC. F.V.T. AS BEFORE W/DK.GREY VITRIC TUFF (NON-CALC.) 4-5 CM IN MIDDLE OF FRAGMENT --BOUNDARIES OF LATTER IRREGULAR FLOW TYPE DRLG RUBBLE 100-125 CM,REST UNDISTURBED PUM. FORAMS AND FORAM MOLDS AND CASTS (ORBULINA) ABUND THRUOUT,ABUND FORAMS IN BASAL 5 CM OF 125-137 CM HARD* 59 451 63 4 0.0 150.0 565.50 570.00 571.50 R TUFF 5Y5/1,5Y6/1,5G7/2,5Y3/1,5YR4/1,5GY4/1, 5YR5/2,-BLACK,5GY5/1 0-24 CM FINE V.T. W/SOME BURROWS OF 5Y5/1 AND 6/1,24-42 CM BIMODAL TUFF GIVEN BY 50% 5G7/2 ROUNDED GLASS (2-4 MM) FRAGMENTS FLOATING IN A MATRIX OF 5Y3/1 SILT SIZED TUFF--THE FRAGS ARE GRADED-THE BIGGEST OCCUR IN LOWER INTERVAL AND THE SMALLER ATOP-AND THE CONTENT OF MATRIX DECREASES UPWARD (THESE CHARACTERS ARE TYPICAL OF "RAINFALL" PARTICLES),42-66 CM MASSIVE MED. SND-SIZE 5Y3/1 TUFF,66-82 CM 5YR4/1 FINE GRAINED INTERVAL WITH FAULTING AND INTERLAYERS OF FINE 5GY4/1 TUFF BURROWED IN 5YR5/2,82-84 CM SND-SIZED BLACK INTERVAL ,85-92 CM 5GY5/1 CRSE SND RND GLASS FRAGS IN BLK INT AS 82-84,92-150 CM 5YR4/1 F.V.T. INT W/INTENSE BIOTURBATION OF 5YR5/2 AND 5Y3/1 HIGH. DEF. 0-24 AND 115-150 CM,MOD.DEF. 24-30 AND 100-110 CM,REST IS SLI. DEF. SOME FORAMS 0-24 CM* 59 451 63 5 0.0 60.0 565.50 571.50 572.10 FINE VITRIC TUFF 5YR4/1,5YR3/2,5YR5/2 0-35 CM F.V.T. (5YR4/1) W/PARALLEL LAMINATION AND PARALLEL BEDDING GIVEN BY LAYERS OF COARSER TUFF--INVERSELY FAULTED,2CM 5YR3/2 FINE LAYER (BROWN) AT 38 CM,35-60 CM SAME LITH. AS 0-35 BUT PARALLEL LAMINATIONS ARE OBLITERATED AND DISTURBED BY INTENSE 5YR5/2 BIOTURB. SS OF MINOR AT 38 CM HARD* 59 451 63 CC 0.0 50.0 565.50 572.20 572.60 R VITRIC TUFF 5YR4/1,5Y3/1 LOOSE PIECES REPRESENTING AS MAJOR LITHOLOGIES: 5YR4/1 V.F.T.-- BIOTURBATED,5Y3/1 MASSIVE COARSE V.T. HARD* 59 451 64 1 0.0 150.0 575.00 575.00 576.50 R VITRIC TUFF 5YR4/1,5Y2/1,5GY7/1,5Y3/2,5G5/2,-BLK ,5B7/1,5YR4/1,5G4/1 0-25 CM 5YR4/1 FINE VITRIC TUFF W/PARALLEL BEDDING AT 0-14 AND BIOTURBATION 14- 25,25-44 CM 5Y2/1 FINE TUFF W/NUMEROUS PARALLEL BEDS OF 1 CM 5GY7/1 GLASS FRAGS--COARSE SND SIZED,44-54 CM 5Y3/2 INT.W/PARALLEL BEDDING,54-60 CM 5GY7/1 CRSE SND-SIZED PUMICES LAYER,60-67 CM 5G5/2 HOMOG. FINE INT.,67-129 CM INTERCALATED BLACK COARSER AND 5B7/1 BEDS CM THICK DISPLAYING: RIPPLED LAMIN. AND FESTOON S AT 67-74 AND 92-93 CM. CONVOLUTED LAM. AT 84-90 CM PARALLEL LAM. AT 93-129CM,129-133CM MASSIVE FINE 5Y4 /1 F.V.T.,133-150CM 5G4/1 CRSE SND-SIZED GLASS LAYER 60-67CM INT. RECRYSTALLIZED TO CELADONITE HARD* 59 451 64 2 0.0 56.0 575.00 576.50 577.06 R FINE TUFF 5YR4/1,N4,5G5/2,5YR4/2 5YR4/1 F.T. W/INTERCALATED FINE SAND (CRSR) N4 LAYERS OF TUFF SLI. DEF. CELADONITIC INT. (5G5/2) AT 26-30 CM, 1.5 CM 5YR4/2 BED AT 41 CM CELADONITE* 59 451 64 2 56.0 100.0 575.00 577.06 577.50 R GLASS AND PUMICE FRAGS 5BG4/1 GRADED 5BG4/1 INT. MADE MAINLY OF GLASS AND PUMICE FRAGS.,MED. SAND AT TOP,VERY COARSE SAND WITH 10% LAPILLI AT 80-100 CM SLI. DEF. PUMICE HARD* 59 451 64 2 100.0 150.0 575.00 577.50 578.00 R VITRIC TUFF 5Y3/1 MASSIVE,MEDIUM SAND-SIZED HIGH. DEF. 100-118 CM,REST SLI. DEF. HARD* 59 451 64 3 0.0 47.0 575.00 578.00 578.47 R VITRIC TUFF 5Y3/1 MASSIVE,MED.SND-SIZE HARD* 59 451 64 3 47.0 119.0 575.00 578.47 579.19 R FINE VITRIC TUFF 5YR3/1,5B7/1 5YR3/1 FINE V.T. W/PARALLEL LAM. MM THICK GIVEN SOMETIMES BY ALIGNMENTS OF 5B7/1 FINE GLASS FRAGMENTS HARD* 59 451 64 3 119.0 150.0 575.00 579.19 579.50 R MED. SND-SIZED V.TUFF -BLK,5B7/1 SOME PARALLEL LAMINAE ARE GIVEN BY SND-SIZED 5B7/1 GLASS FRAGS HARD* 59 451 64 4 0.0 85.0 575.00 579.50 580.35 R MED. SND-SIZED VITRIC TUFF -BLK SOME PARALLEL LAMINAE GIVEN BY GLASS FRAGS SLI. DEF. 0-30 AND 70-85CM,MOD. DEF. REST SAME AS BTM OF SECT.3 HARD* 59 451 64 4 85.0 147.0 575.00 580.35 580.97 R VITRIC TUFF -BLK,5B6/1 SEQUENCE GIVEN BY REG. INTERCALATIONS OF BLK. FINE V.T. AND LAPILLI LAYERS 1-2 CM THICK GIVEN BY 5B6/1 GLASS AND PUMICE FRAGS SLI. DEF ROUNDED GLASS AND PUMICE FRAGS HARD* 59 451 64 CC 0.0 20.0 575.00 581.07 581.17 R VITRIC TUFF AS BOTTOM SECT. 4 HARD* 59 451 65 1 0.0 50.0 584.50 584.50 585.00 JL VITRIC TUFF N4-MED.GREY,N3-MED.DK.GREY,5B4/1 0-25 CM N4 TO N3 FINE VITRIC TUFF,WELL LAMINATED IN BOTTOM 4 CM AND FAINTLY LAM. ABOVE,25-42 CM COARSE VITRIC TUFF W/0.5 CM LAYERS OF 5B4/1 VITRIC ANGULAR CLASTS 2-8 MM IN SIZE,DIP 35-40 DEG.,42-50 CM FINE TO V.F. VITRIC TUFF AS ABOVE,DELICATELY LAM. AND SOME X-LAMINATION HARD* 59 451 65 1 50.0 145.0 584.50 585.00 585.95 JL WELL BEDDED GRANULE TO SMALL PEBBLE MICROBRECCIA -BLK,5BG4/1-BLUE GREY CLASTS IN LAYERS 0.5-3 CM (AVE) THICK SEPARATED INDISTINCTLY FROM BLACK COARSE VITRIC TUFF MATRIX,CLASTS ARE 5BG4/1,VITRIC,ANGULAR ,DIA SIZE COARSE TO VERY COARSE SAND WITH MAX SIZE UP TO 2 CM,ANGULAR TO SUBANGULAR MAINLY EQUIDIMEN- SIONAL,TABULAR FORMS ORIENTED PARALLEL BDDY,CLASTS: MATRIX = 2:3,FROM 95-110 CM--MNE(?) MASSIVE,BEDDING INDISTINCT,POORLY SORTED,COARSEST,DIP 30 DEG.* 59 451 65 2 0.0 142.0 584.50 586.00 587.42 JL MICROBRECCIA AS IN SECT.1,BDDY INDISTINCT TO ABSENT BELOW 30 CM,UNSORTED ANGULAR CLASTS,C:M = 1:3 HARD* 59 451 65 3 0.0 30.0 584.50 587.50 587.80 JL MICROBRECCIA AS IN SECT.2,16-30 CM V.CRSE CLASTS AVE 1 CM,MAX 2 CM HIGH DEF. 16-30 CM HARD* 59 451 65 3 30.0 98.0 584.50 587.80 588.48 JL FINE VITRIC TUFF N1-BLK,N2-GREYISH BLK,-PALE GRY MASSIVE,STRUCTURELESS,N1-N2 RARE <1 PALE GREY VITRIC ANGULAR CLASTS UP TO 2 MM HARD* 59 451 65 CC 0.0 22.0 584.50 588.58 588.70 JL VITRIC TUFF -PALE GREY,N1-JET BLK FINE V.T. GRADING DOWN TO COARSER V.T.,AS IN SECT.3,TWO LENSES OF ULTRAFINE N1 V.T. (0.5 CM) 10 CM FRM TOP PALE GREY VITRIC CLASTS UP TO 3 MM OCCUPY 15% OF BASAL 8 CM HARD* 59 451 66 1 0.0 150.0 594.00 594.00 595.50 JL BRECCIA N5-BLUE GREY,-DK.GREENISH BLACK,N1-BLK AS IN CORE 65,MASSIVE,UNBEDDED,C:M--1:3 OR 4,CLAST: N5 ANGULAR TO SUBROUNDED. VITRIC:LITHIC--5 OR 6:1. 2-4 MM DIA (MAX 2 CM),MATRIX: N1 COARSE TO V.CRSE VT 2 LG. (3 AND 6 CM LONG) ROUNDED LITHIC CLASTS IN BOTTOM 15 CM--APHANITIC DK.GREENISH BLK BASALT BASALT* 59 451 66 2 0.0 82.0 594.00 595.50 596.32 JL BRECCIA -BLK AS IN SECT.1,LG. BLK V.F. VITRIC TUFF COBBLES AT 10-18 AND 64-82 CM* 59 451 66 2 82.0 150.0 594.00 596.32 597.00 JL VITRIC TUFF N4-MED.GREY,N3-MED.DK.GREY 82-100 CM FINE TO V. FINE VITRIC TUFF OF N4-N3 COLOR--SLI. CALC. AND BIOTURBATED,100-150 CM N4 FINE VITRIC TUFF GRADING DOWN TO N3 AND INCREASING IN GRAIN SIZE TO MED. SND DOWNWARDS,NO OBVIOUS BEDDING HARD* 59 451 66 3 0.0 115.0 594.00 597.00 598.15 JL VITRIC TUFF N1-BLK.-MED.GRY,N4-MED.GRY,N2-GRYISH BLK,-GRY,-LT.GRY 0-28 CM GRADING DOWN FROM BTM SECT.2--SAME LITH. BUT INCREASE IN GRAIN SIZE MED. SND VITRIC TUFF,28-38 CM ULTRA FINE VITRIC TUFF N1 BECOMING MED GREY AND BIOTURBATED 32-38 CM,38-87 CM N4 TO N2 FINE VITRIC TUFF W/RARE ANGULAR CLASTS IN INDISTINCT LAYERS--CLASTS UP TO 4 MM GREY TO LT. GRY VITRIC--BDDY AT TOP OF INTERVAL DIPS 30-35 DEG, 87-115 CM FINE VITRIC TUFF (FINER THAN ABOVE INTERVA L) W/ONLY RARE CLASTS OF LT. GREY UP TO 5 MM--THERE MAY HAVE BEEN BEDDING BUT IT IS VAGUE AND DISTURBED- -FLOW HARD* 59 451 66 3 115.0 123.0 594.00 598.15 598.23 JL BRECCIA 5B4/1-BLUE GREY,5B5/1-BLUE GREY AS IN SECT.1,CLASTS 5B4/1 AND 5/1,NO BEDDING HIGH. DEF. 115-123 CM BASALT(?)* 59 451 66 4 0.0 93.0 594.00 598.50 599.43 JL BRECCIA AS IN SECT.1 AND CONTINUATION OF 115-150 INTERVAL IN SECT.3* 59 451 66 4 93.0 150.0 594.00 599.43 600.00 JL ULTRA FINE VITRIC TUFF 5B4/1-BLUE,5BG4/1-BLUE GREEN GREY,N5-GREY,-GREEN 93-133 CM 5B AND 5BG4/1 U.F.V.T.--SLI. CALC IN TOP HALF,FAINT LAMIN.-25 DEG DIP,FAINT BIOTURB.,CROSS LAM. IN BOTTOM 4 CM,133-150 CM N5 U.F.VITR.TUFF(MUCH AS ABOVE),CALC. AND BIOTURB ATED,RARE GREEN VITRIC CLASTS UP TO 3MM HIGH.DEF. 130-137CM PROBABLY FORAMS(BIOTURB) 133-150 HARD* 59 451 66 5 0.0 28.0 594.00 600.00 600.28 JL ULTRA FINE VITRIC TUFF AS IN 93-133 INTERVAL OF SECTION 4 HIGH. DEF HARD* 59 451 66 CC 0.0 20.0 594.00 600.38 600.48 JL VERY FINE VITRIC TUFF N1-BLACK,N2-GREYISH BLK N1-N2 V.F.V.T. HIGH. DEF. 0-10 AND 17-20 CM,REST (10-17 CM) IS UNDISTURBED HARD* 59 451 67 1 0.0 150.0 603.50 603.50 605.00 JL VITRIC TUFF N1-BLACK,N2-GREYISH BLACK,5BG4/1, N3-MED.DK.GREY,-MED.LT.GREY,5GY2/1-DK.GREENISH GREY 0-58 CM N1 TO N2 FINE TO VERY FINE VITRIC TUFF W/RARE LAMINAE OF FINE SAND-SIZED VITRIC GRAINS, 58-92 CM FINE VITRIC TUFF AS ABOVE BUT CONTAINING RELATIVELY LARGE (MAX 1 CM--DIA 3 MM) SUBANGULAR UNORIENTED CLASTS OF 5BG4/1 VITRIC MATERIAL,92-112 CM F.V.T. AS IN TOP INTERVAL GRADING DOWN TO VITRIC TUFF (MED. SND-SIZED) W/GOOD GRAIN GRADATION UPWARD, 112-150 CM N3 ULTRA FINE TO VERY FINE V.T.,VARIES FROM INDISTINCT "BEDS" OF U.F.V.T. TO THAT W/MED. LT GREY PATCHES AND BIOTURBATED CALCAREOUS (BIOGENIC?) LAYERS,ALSO INTERBDD ARE 5GY2/1 F.V.T.,DIP IS 20 DEG,140-142 CM MED. TO CRSE. V.T. AND 5GYI/1 MICRO- BRECCIA HARD* 59 451 67 2 0.0 150.0 603.50 605.00 606.50 JL FINE VITRIC TUFF N3-MED.DK.GREY,5GY2/1-DK.GRNISH BLK N3-5GY2/1 F.V.T. BECOMING GRADUALLY AND PROGRESSIVELY COARSER DOWNWARD TO A GRANULE SIZED MICROBRECCIA FROM ABOUT 102-107 CM,C:M AT BASE 1:1, VITR:LITH AROUND 4:1,MAX SIZE 5 MM (AVE 2-3 MM), ABRUPT BASAL CONTACT W/TOP OF 107-128 INTERVAL,107- 128 CM FINE N3 V.T. FAINTLY LAMIN.,FLOW STRUCTURES AT 125CM HIGH. DEF. 128-150CM,REST UNDEF HARD* 59 451 67 3 0.0 72.0 603.50 606.50 607.22 JL FINE VITRIC TUFF CONTINUATION DOWNWARD OF 107-50 INTERVAL FROM SECT.2--BECOMING COARSER TO VITRIC TUFF,PRESUMABLY ANOTHER GRADED BED HIGH. DEF. 10- 35 AND 55-72 CM,REST UNDEFORMED HARD* 59 451 67 CC 0.0 50.0 603.50 607.32 607.72 JL FINE VITRIC TUFF DOWNWARD CONTINUATION OF 0-72 CM UNIT IN SECT.3 HIGH DEF RARE VITRIC CLASTS UP TO 4 MM HARD* 59 451 68 1 0.0 150.0 613.00 613.00 614.50 JL VITRIC TUFF N4-MED.GRY,5B5/1-BLUISH GRY,N3-DK.GR Y,N2-DK.GRY DNWRD CONT. OF THE BTM GRADED BED IN CORE 67,GRADES FROM A FINE VITRIC TUFF TO A COARSE GRANULE AND FINE PEBBLE MICROBRECCIA FRM 0 TO ABOUT 100 CM,THERE IS A BASAL VITRIC TUFF (MED. SAND-SIZE) IN THE BASAL 5 CM OF THE UNIT (100-105 CM) WHICH IS ANOMALOUS TO THE "PERFECT" GRADED BED,COLOR VARIES FROM N4 AT TOP TO 5B5/1-N4 AT BASE,IN (MAX SIZE) BRECCIA TEXTURES(?): C/M IS 4/1,VITR/LITH IS 4 OR 5: 1,DIA SIZE 3-4 MM (MAX SIZE 2.5 CM) UNSORTED AND UNORIENTED,105-121 CM N3-N4 ULTRA FINE V.T. W/LIGHTR BIOTURBATED CALC. LAMINAE AND PATCHES--GRADES DOWN TO N2 FVT,121-150 CM AS 0-105 CM,FRAGMENT AT BOTTOM OF SECT HAS ULTRA FINE V.T. END AS IN 105-121 ABOVE HIGH. DEF. 121-150 CM,UNDEF. ELSE HARD* 59 451 68 2 0.0 150.0 613.00 614.50 616.00 JL VITRIC TUFF 5BG4/1,N2-DK.GREY,-BLK,-MED.GRY,-DK. GRY,-GRY TOP 10 CM 5BG4/1 THOROUGHLY BIOTURBATED CALCAREOUS V.F.V.T.--FAULTED,ABRUPT CONTACT W/N2 MASSIVE F.V.T--THE LATTER BECOMING COARSER TO VITRIC TUFF (MED. SAND SIZE) DOWNWARD,80-91 CM DK.GRY TO BLK ULTRA F.V.T. FAINTLY LAM. AND 30 DEG. DIP,91-94 CM TRIANGLE OF MED.GRY CALC. FINE VITRIC BIOTURB. TUFF,94-110 CM DK.GRY F.V.T.,110-133CM DK.GRY F.V.T AT 124CM ABRUPTLY V.F.V.T. W/GRY CALC LENSES DIPPING 25 DEG. HIGH. DEF. 54-64,94-110,AND 133-50CM,REST UNDEF. TRIANGLE AT 91-94 CM ?W/FORAMS HARD* 59 451 68 3 0.0 92.0 613.00 616.00 616.92 JL FINE VITRIC TUFF N3,5GY2/1 N3 TO 5GY2/1 F.V.T. GRADING DOWN INTO VITRIC TUFF AT 70 CM HIGH DEF. 30-36 AND 70-92 CM,REST UNDEF HARD* 59 451 68 CC 0.0 55.0 613.00 617.02 617.47 JL FINE VITRIC TUFF N3-DK.GRY RUBBLE AND BROKEN PIECES HIGH. DEF. 0-30,38-42,AND 50-55CM HARD* 59 451 69 1 0.0 150.0 622.50 622.50 624.00 JL WATER LAID BRECCIA 5G2/1-GREENISH BLACK,-DK.GRY, N2-DK.GRY,5B5/1-MED.BLUE GREY,-RED BRN C:M IS 5 OR 6:1,VITR:LITH = 1:1,MAX SIZE 2 CM (RARE),AVE. SIZE GRANULE 2-4 MM,ANGULAR TO SUBANGULAR CLASTS RANGING IN COLOR FROM N2 LITHIC TYPES TO 5B5/1 VITRIC-- UNSORTED AND UNORIENTED,MATRIX IS MED.-SAND TO FINE- SAND SIZE VITRIC + LITHIC GRAINS,UNIT MASSIVE AND UNBEDDED APHANITIC DK.GREY ROUNDED BASALT CLAST 5 CM DIA AT 110-112 CM,RARE RED BRN BASALT CLASTS BASALT HARD* 59 451 69 2 0.0 150.0 622.50 624.00 625.50 JL WATER LAID BRECCIA N2-DK.GREY,N3-MED.DK.GRY, 5R3/4-DUSKY RED AS SECT.1 LARGE (COBBLE SIZE ROUNDED TO WELL-ROUNDED) CLASTS OF VESICULAR BASALT (N2 TO N3) AT 1-6,18-23,55-62,63-68,AND 75-89 CM, 5R3/4 BASALT COBBLE AT 41-51 CM BASALT A LAYER FORAM (I.E. BENTHONIC) AT 92 CM* 59 451 69 3 0.0 30.0 622.50 625.50 625.80 JL BRECCIA N2-DK.GREY,N4-MED.GRY,N5-MED.GRY AS IN SECS. 1 AND 2 BUT INCREASE IN SIZE TO SMALL PEBBLES SUBANGULAR TO SUBROUNDED,VITR:LITH = 1:4,MATR:CLAST IS 5:1 HIGH. DEF. 10-20 CM,REST UNDEF. LARGE PEBBLES OF DK.GRY TO MED.GRY (N2-N4 OR 5) APHANITIC BASALT (ONE PHYRIC),PEBBLES MOSTLY ROUNDED W/THIN REACTION OR ALTERATION VEINS BASALT* 59 451 69 CC 0.0 25.0 622.50 625.90 626.05 JL BRECCIA AS IN SEC.3 HIGH. DEF. 0-10 CM* 59 451 70 1 0.0 43.0 632.00 632.00 632.43 JL FINE VITRIC TUFF N5-MED.LT.GRY,N3-MED.DK.GRY,N2- DK.GRY,5B5/1-MED.BLUE GRY 0-5 CM N5 AND N3 FINELY INTERLAMINATED AND CROSS LAMIN. CALC. F.V.T.,5-43 CM N2-N3 DENSE HOMOG. F.V.T. W/IRREG. ILL-DEFINED LAYERS OF FINE GRANULE SIZE 5B5/1 SUBANGULAR TO SUBROUNDED VITRIC CLASTS,LAYERS UP TO 1 CM THICK-- FOUR OF THEM IN THE INTERVAL--EVIDENCE OF SOFT ROCK DEFORMATION IN THESE LAYERS HARD* 59 451 70 1 43.0 75.0 632.00 632.43 632.75 JL GRANULE SIZE MICROBRECCIA INTERBDD W/DK.GRY VITRIC TUFF -DK.GRY,5BG5/1,N4-GREY,5BG3/2-DUSKY BLUE GRN 5BG5/1 BRECCIA,CLAST:MATRIX = 1:1,ANG. TO SUBRND CLASTS (DIA SIZE 2-3MM MAX 5MM),VITR:LITH = 8:1,72- 75CM IS N4 ULTRA F.V.T.--DENSE BED W/2 OR 3 5BG5/1 ANG. VITRIC CLASTS UP TO 5 MM,TOP CTCT ABRUPT,BTM CT CT IRREG. ON 3-4MM 5BG3/2 ULTRA FINE V.T.-THIS GREEN "RIND" GRADES DOWN INTO NEXT BRECCIA UNIT HIGH.DEF 50-52 CM,REST UNDEF. ORBULINA PRES. HARD* 59 451 70 1 75.0 150.0 632.00 632.75 633.50 JL VITRIC BRECCIA 5B5/1,N4 CRSE GRANULE TO SMALL PEBBLE SIZE 5B5/1 SUBANGULAR TO SUBROUNDED UNSORTED UNORIENTED CLASTS,C:M AROUND 1:4,VITR:LITH=10:1,DIA SIZE 2-3 MM (MAX SIZE 2 CM),148-150 CM ULTRA VFT,N4 AS IN 72-75 CM,SLI. CALCAREOUS,ABRUPT TOP CTCT W/BRECCIA,30 DEG. DIP HIGH. DEF. 92-100 AND 120-25 CM HARD* 59 451 70 2 0.0 13.0 632.00 633.50 633.63 JL FINE VITRIC TUFF N3-MED.DK.GREY,N2-DK.GRY DEFORMED (SOFT ROCK) INTERBEDS AND LAMINAE,N3 ULTRA F.V.T. AND N2 F.V.T. HIGH.DEF. 0-9 CM HARD* 59 451 70 2 13.0 67.0 632.00 633.63 634.17 JL FINE VITRIC TUFF EXACTLY THE SAME AS 5-43 CM IN SECT.1 COMPLETE W/SOFT ROCK FLOW OF BX LAYERS HIGH DEF. 25-31 AND 45-52 CM HARD* 59 451 70 2 67.0 150.0 632.00 634.17 635.00 JL CRSE BRECCIA 5B5/1-BLUE GRY,5B4/1-BL. GRY,-MED. GRY,-DK.GRY 5B5/1-4/1 UNSRTED UNORIENTED GRANULE TO SMALL COBBLE SIZE ANG. TO SUBRND CLASTS (95% VITR IC),C:M IS 4:1,AV. SIZE 5 MM,MAX SIZE 5.5 CM,MATRIX: 5B4/1 FVT HIGH. DEF. 74-82 AND 135-143 CM MAX SIZE CLAST 5.5 CM--DEVITRIFIED PUMICE W/PYROXENE IN IT DEVIT. PUMICE,PYROXENE* 59 451 70 3 0.0 45.0 632.00 635.00 635.45 JL COARSE BRECCIA AS IN 67-150 CM SECT.2 HIGH. DEF. 0-10,25-32,40-45 CM MANY CLASTS OF PUMICE W/PYROXENE PUMICE,PYROXENE* 59 451 70 CC 0.0 15.0 632.00 635.55 635.60 JL BRECCIA AS BEFORE AS BEFORE* 59 451 71 1 0.0 40.0 641.50 641.50 641.90 JL BRECCIA N2-DK.GRY,5BG4/1,-WHITE AS BEFORE IN CORE 71 W/A GRADUAL INCREASE IN MATRIX CONTENT UNTIL BRECCIA PASSES INTO N2 VERY UNIFORM MASSIVE F.V.T., 5BG4/1 CLASTS AV. 3-4 MM (MAX 1 CM),BTM CTCT AT LONEST CLAST ABOUT 5% SILT TO FINE SAND WHITE SPECKS--?BIOGENIC ?BIOGENIC WHITE SPECKS* 59 451 71 1 40.0 150.0 641.50 641.90 643.00 JL FINE VITRIC TUFF -WHITE ONE GRADED UNIT THROUG H SECT. 5 + CC,GRADING FROM CRSE VITRIC TUFF WITH SCATTERED GRANULE SIZE VITRIC + LITHIC CLASTS IN CC AND THE BTM OF SECT.5 (MOSTLY GRADUAL W/O INTERRUPTI ON) TO THE BASE OF THE BRECCIA AT THE TOP OF SECT.1 UNDEFORMED RARE SCATTERED LITHIC + VITRIC CLASTS (<5 MM) THROUGHOUT THE GRADED UNIT MUCH WHITE (?BIOGENIC) SPECKLING AND COARSE-SAND-SIZE ORGANIC FRAGS INCLUD LG. FORMAS,CORAL, AND ?BRYOZOA HARD* 59 451 71 2 0.0 150.0 641.50 643.00 644.50 JL FINE VITRIC TUFF AS SECT.1 FORAMS,CORAL, ?BRYOZOA (SEE SECT.1) SEE SECT.1 HARD* 59 451 71 3 0.0 150.0 641.50 644.50 646.00 JL FINE VITRIC TUFF AS SECT.1 FORAMS,CORAL, ?BRYOZOA (SEE SECT.1) SEE SECT.1 HARD* 59 451 71 4 0.0 150.0 641.50 646.00 647.50 JL FINE VITRIC TUFF SEE SECT.1 FORAMS,CORAL, ?BRYOZOA (SEE SECT.1) SEE SECT.1 HARD* 59 451 71 5 0.0 150.0 641.50 647.50 649.00 JL FINE VITRIC TUFF SEE SECT.1 FORAMS,CORAL, ?BRYOZOA (SEE SECT.1) SEE SECT.1 HARD* 59 451 71 CC 0.0 30.0 641.50 649.40 649.60 JL FINE VITRIC TUFF SEE SECT.1 FORAMS,CORAL, ?BRYOZOA (SEE SECT.1) SEE SECT.1 HARD* 59 451 72 1 0.0 150.0 651.00 651.00 652.50 Z VITRIC AND LITHIC TUFF (SEDIMENTARY) 5GY2/1-GRNI SH BLK PCS OF CORE ARE 31 CM LONG (MAX) AND 15 CM LONG AVE.,C:M -- 2:1,SUBANG TO SUBRND (0.5X0.5 AVE) CLASTS,SEE M FOR COMP. CLASTS: VESICULAR APHYRIC BASALTS AND BASALTIC ANDESITES,HYDROTHERMALLY ALT. GLASS AND ALT. VITROPHYRIC(?) EXTRUSIVE ROCKS, ANDESITES W/OXIDIZED GROUND MASS,PCS. OF OLIVINE, PYROXENE,HYDROTHERMAL(?) CARBONATE,MATRIX: MAINLY ALT. VOLC. GLASS,GLASSY MATRIX OF EXTRUSIVE ROCKS-- CEMENTED W/CARBONATE CORED INTERVAL 651.0-660.5, SAME MATERIAL THROUGHOUT CORE 72 HARD* 59 451 72 2 0.0 150.0 651.00 652.50 654.00 Z VITR + LITH TUFF CORED INTERVAL 651.0-660.5, SAME MATERIAL THROUGHOUT CORE 72 HARD* 59 451 72 3 0.0 150.0 651.00 654.00 655.50 Z VITR + LITH TUFF CORED INTERVAL 651.0-660.5, SAME MATERIAL THROUGHOUT CORE 72 HARD* 59 451 72 4 0.0 65.0 651.00 655.50 656.15 Z VITR + LITH TUFF CORED INTERVAL 651.0-660.5, SAME MATERIAL THROUGHOUT CORE 72 HARD* 59 451 72 CC 0.0 30.0 651.00 656.25 656.45 Z VITR + LITH TUFF CORED INTERVAL 651.0-660.5, SAME MATERIAL THROUGHOUT CORE 72 HARD* 59 451 73 1 0.0 140.0 660.50 660.50 661.90 KS TUFF 5GY2/1,-BLK,5YR2/1-BROWNISH BLK,5G5/1-GRNSH GRY,5GY2/1-GNSH BLK 0-20 CM IS SAME SED. VITRIC- LITHIC TUFF AS CORE 72 IN PENECONTEMPORANEOUS NORMAL FAULT CTCT W/BLACK WELL-SORTED MASSIVE FINE SAND SIZE VITRIC-LITHIC TUFF,20-25 CM DSTRBD BEDDING OF 5YR2/1 IN BLK LITHOLOGY OF UPPER PIECE,25-75 CM SMALL PIECES PRED. 5YR2/1 VITRIC-LITHIC TUFF,75-83 CM PIECE OF PRED. 5YR2/1 VITR-LITH TUFF (ALSO SMALL PIECE 85-90 CM),83-85 CM (ALSO 90-93 AND 93-140 CM) SAME 5GY2/1 VITR-LITH TUFF AS AT TOP OF SECT.,85-92 CM 5G5/1 AUREOLE 0.4 CM PIECES OF RECRYSTALLIZED SHELLS(?) 85-92 CM (5G5/1 MAT.) SS AT 15 (D: 5GY2/ 1) AND 87 (M: 5G5/1) CM,CORED INT. 660.5-670.0* 59 451 73 CC 0.0 20.0 660.50 662.10 662.20 KS VITRIC-LITHIC TUFF 5GY2/1 FEW SMALL PIECES HARD* 59 451 74 1 0.0 150.0 670.00 670.00 671.50 Z VITRIC-LITHIC AND CRYSTALLOCLASTIC TUFF (SEDIMENT) -GREYISH BLK SUBANG TO SUBRND 3X4 MM (AVE) CLASTS (OCCASIONALLY TO 5X4 CM) W/NO SORTING OR ORIENTATION OBSERVED,C:M IS 5:1,SEE M FOR COMP. 5X4 CM HYDROTHERMALLY ALT. ANDESITE CLAST AT 30-35 CM,CLASTS + MATRIX CONTAIN SMALL GRAINS OF DISSIMINATE PYRITE CLASTS: MAINLY HYDROTHERMALLY ALT. PL-PHYRIC AND APHYRIC ANDESITES,BASALTS,FRAGS. OF OL,PLAGIOCLASE AND CARBONATE ALSO OCCUR,MATRIX: CORRESPONDS IN COMPOSITION TO CLASTS (<0.2 MM),ALSO DISSIMINATE PYRITE PRESENT CORED INT. 670.0-679.5 HARD* 59 451 74 2 0.0 75.0 670.00 671.50 672.25 Z VITRIC-LITHIC AND CRYSTALLOCLASTIC TUFF (SEDIMENTARY) CORED INT. 670.0-679.5 HARD* 59 451 74 CC 0.0 20.0 670.00 672.35 672.45 Z VITRIC-LITHIC CRYSTALLOCLASTIC TUFF HARD* 59 451 75 1 0.0 30.0 679.50 679.50 679.80 Z VITRIC AND LITHIC TUFFS FINE VITR AND LITH TUFFS (<0.25 MM) TO COARSER TUFFS (2X3 MM) OF THE SAME COMPOSITION,C:M IS 5:1,GRAIN SIZE INCREASES DOWNWARD CLASTS: ALT. VITRIC VOLCANICS W/OLIVINE AND PL- PHENOCRYSTS,ALT. APHYRIC ANDESITES(?) AND VOLCANIC GLASS CORED INTERVAL 679.5-689.0 HARD* 59 451 75 CC 0.0 20.0 679.50 679.90 680.00 Z VITRIC AND LITHIC TUFFS SMALL PIECES (3-4 CM) HARD* 59 451 78 1 0.0 115.0 701.50 701.50 702.65 JL VITRIC TUFF N1-BLK,5G2/1-DK.GRN.BLK,5G4/1-BLUE GRY 0-5 CM N1-5G2/1 V.T.,5-115 CM V.T. AS ABOVE BUT W/ANG.VITRIC AND LITHIC CLASTS APPEARING AT TOPP AND BECOMING MORE NUMEROUS DOWNSECT TO 115CM WHERE COARSE CLASTS BECOME MUCH LESS FREQUENT AND THERE IS A SUBTLE COLOR CHANGE FROM 5G2/1 TO 5G4/1,CLASTS , ACCOUNT FOR 10% OF ROCK,SIZE RANGE FROM GRANULE (2-4 MM) TO WHAT APPEARS TO HAVE BEEN COBBLES IN EXCESS OF 6 CM,VITR:LITH = 1:1,MATRIX IS A VITRIC TUFF LARGE CLASTS ARE DENSE BASALTS HARD* 59 451 78 1 115.0 138.0 701.50 702.65 702.88 JL GRANULE SIZE MICROBRECCIA 5G4/1-BLUE GREY GRADUAL CHANGE FROM ABOVE LITHO,ABOUT 1:1 CLASTS TO MATRIX WITH RARE SMALL PEBBLE SIZE (5-7 MM) ANGULAR CLASTS,VITRIC:LITHIC = 4 OR 5:1,BEDDING ABSENT,RK UNSORTED,UNORIENTED,MASSIVE,CONTINUES INTO SECT.2 GRADUALLY INCREASING IN GRAIN SIZE HARD* 59 451 78 2 0.0 70.0 701.50 703.00 703.70 KS LAPILLI TUFF 5G4.5/1* 59 451 78 2 70.0 119.0 701.50 703.70 704.19 KS SANDSTONE,TUFF,CHALK 5Y4.5/1,10YR3.5/1-BRN, 5G4.5/1,10YR6.5/1 70-78 CM FINE 5Y4.5/1 SS GRADED FROM MED. AT BTM,78-81 CM 10YR3.5/1 CLAY-SIZED TUFF, 81-98 CM ALTERNATIONS OF FINE 5Y4.5/1 SS AND 5G4.5/1 LAPILLI TUFF,98-101 CM 10YR6.5/1 BIOTURBATED CHALK, 101-119 CM VAGUELY BEDDED CRSE + MED SS* 59 451 78 2 119.0 150.0 701.50 704.19 704.50 KS LAPILLI TUFF 5G4.5/1* 59 451 78 3 0.0 146.0 701.50 704.50 705.96 KS TUFF,CHALK 5G5/1,5Y6/1,-V.DK.GRY,10YR2/1-BRNISH BLK,7.5YR5/2,5GY2/1-GRNSH BLK,7.5YR4/2,5G4.5/1-GNSH, 10YR5.5/2-BRNISH GRY,10YR3/2-V.DK.BRN,10YR6/1,5G2/1, -BLK,5G4.5/1 0-2 CM IS 2.5 CM 5G5/1 PUMICE CLAST, 2-9 CM V.DK.GRY FINE SS W/2 MM SUBHORIZ. 5Y6/1 BURROW AT 3 CM,9-12 CM 10YR2/1 LAYER,12-18 CM 7.5YR5/2 BIOTURBD WITH 5Y6/1,18-29 CM 7.5YR5/2 WITH VAGUE 5GY2/1 HORIZONS (0.5 + 1 CM) AND A 1 CM 7.5YR4/2 MOTTLE,29-34 CM 5G4.5/1 GRADED GRANULE-CRSE SS TUFF LAYER,40-44 CM 10YR3/2(?) BIOTURBD CHALK, 34-40 CM 10YR5.5/2 CHALK,44-49 CM 10YR6/1 BIOTURBED CHALK,49-59 CM BIOTURBED MED-CRSE SS WITH 5GY2/1 AND 5G2/1 LAYERS,59-67 CM 5G5/1 LAPILLI TUFF (0.5 CM LAPILLI) W/8 CM BLK LAYER AT 60 CM,67-90 CM MASSIVE CRSE SAND SIZED 5G4.5/1 V.T.,90-102 CM 5G5/1 LAPILLI TUFF W/CLASTS UP TO 1.2 CM--COMPRESSED FLATTENED ELONGATED AND PARALLEL TO BDNG,102-111 CM 5G5/1 V.T. GRADED UP FROM CRSE SS-GRANULE TO MED SS AT TOP, 111-131 CM 5G5/1 LAPILLI TUFF GRADING TO CRSE-MED SS ,131-146 CM 5G5/1 CRSE SS AND GRANULE SIZED F.V.T. DESCRIBED WET,SS AT 12 (M) 36 (M) AND 60 (M) CM* 59 451 78 4 0.0 105.0 701.50 706.00 707.05 JL MICROBRECCIA 5BG4/1 0-40 CM GRANULE SIZE WITH RARE CLASTS UP TO 5 CM (MAX. AVE SIZE 2 CM). C:M IS 2:1 AND VITR:LITH IS 3:1,FINER GRAINED (I.E. CRSE V. T.) AT 30-40 CM,40-105 CM AS ABOVE BUT MUCH COARSER: SMALL PEBBLE SIZE (AVE. 5-7 MM,MAX. 1 CM),VITR:LITH IS 5:1 AND C:M IS 2:1,UNSORTED BUT UNORIENTED WITH DIP 35-40 DEG. HARD* 59 451 78 5 0.0 81.0 701.50 707.50 708.31 JL MICROBRECCIA 5BG4/1 AS IN 40-105 CM OF SEC.4 HARD* 59 451 79 1 0.0 29.0 708.00 708.00 708.29 JL BRECCIA CONTINUATION OF CORE 78 SECT.5* 59 451 79 1 29.0 110.0 708.00 708.29 709.10 JL VITRIC TUFF 5B4/1,5BG4/1 VERY FINE AT TOP AND COARSER DOWNWARD,RARE CLASTS AND THIN (5 MM) LAYERS OF CLASTS UP TO 2 CM,TABULAR ONES ORIENTED PARALLEL VAGUE BEDDING,15 DEG DIP,GRADATIONAL INTO LOWER PART OF SECT.,COLOR 5B4/1-5BG4/1 HARD* 59 451 79 1 110.0 140.0 708.00 709.10 709.40 JL BRECCIA GRANULE SIZE (2-4 MM) W/AREAS OF LAYER (1 CM MAX) CLASTS,CLASTS:MATRIX = 1:1,VITR:LITH=2:1* 59 451 79 2 0.0 150.0 708.00 709.50 711.00 JL BRECCIA -RED BRN AS IN BOTTOM PART OF SECT.1, VITR:LITH = 1:1,RED BRN (?ANDESITE)CLASTS <1% BELOW 110 CM,MOSTLY GRANULE SIZE,RARE SMALL PEBBLE SIZE CLASTS,UNSORTED AND UNORIENTED ?ANDESITE LAPILLI TUFF ACCORDING TO RODOLFO (KELVIN)* 59 451 79 3 0.0 146.0 708.00 711.00 712.46 JL BRECCIA -RED BRN AS BEFORE GRADUALLY COARSENNG DOWNSECTION TO SMALL PEBBLE SIZE TEXTURE,AVE. SIZE 4-5 MM,MAX SIZE 1.5 CM,CLASTS:MATRIX 4:1,VITRIC:LITH 1:1 (<1% RED BRN CLASTS),UNSORTED AND UNORIENTED HIGH. DEF. 25-31 CM* 59 451 79 CC 0.0 5.0 708.00 712.56 712.51 JL BRECCIA AS BEFORE* 59 451 79 CC 5.0 22.0 708.00 712.51 712.68 JL GRUNDGE HIGH. DEF. HARD* 59 451 79 CC 22.0 30.0 708.00 712.68 712.76 JL VITRIC TUFF N1-DK.GRNISH BLK,5G2/1-DK.GRNISH BLK SCATTERED VITRIC AND LITHIC CLASTS UP TO 5 MM HARD* 59 451 80 1 0.0 92.0 717.50 717.50 718.42 JL LAPILLI N3-MED.DK.GRY,5G3/1-GRNISH BLK,N2-DK.GRY ,N5 N3 TO 5G3/1 LAPILLI,CLASTS:MATRIX IS 1:1 GRADING DOWNWARDS TO 1:5 (CLASTS BECOME RARE DWNWRD) ,VITR:LITH IS 1:2 OR 3,MAX SIZE 2.5 CM (AVE. 3-5 MM) ,UNSORTED AND UNORIENTED EXCEPT IN BOTTOM 15 CM WHERE ORIENTATION PARALLEL BDDY OCCURS,DIP 30-35 DEG ,AT 74 CM--BROKEN FRAGMENT OF CORE W/N2 ULTRA FINE VITRIC TUFF CONTAINING MED. GRAIN N5 BIOGENIC CALC. BURROWS,ABRUPT CTCT AT BASE OF UNIT (92 CM) LARGER FORAMS IN TOP MOST 35CM,BIOGENIC CALC BURROWS 74CM HARD* 59 451 80 1 92.0 116.0 717.50 718.42 718.66 JL ULTRA FINE VITRIC TUFF N3-MED.DK.GRY VERY FINELY LAMINATED,STEP-FAULTED (PEPENDICULAR TO BDDY? ),ABRUPT CTCT AT 116 CM HARD* 59 451 80 1 116.0 138.0 717.50 718.66 718.88 JL FINE VITRIC TUFF N5-MED.GREY,N6-LT.GREY,5G5/1, 5G6/2,5GY2/1,5G2/1 CALCAREOUS,LOWEST 3/4 CONTAINS ANG. 5G5/1-5G6/2 VITRIC CLASTS (3-5 MM) THAT BECOME MORE NUMEROUS DOWNWARD AND PASS INTO UNDERLYING LAPILLI (AS BEFORE),VITRIC AND LITHIC 5GY2/1 TO 5G2/1 REXALLIZED FORAMS HARD* 59 451 80 2 0.0 140.0 717.50 719.00 720.40 JL LAPILLI N3,5G3/1 UNBEDDED,UNSORTED,UNORIENTED, CLASTS:MATRIX = 3 OR 4:1,VITRIC:LITHIC = 1:1 OR 1:2, AV. SIZE 2-3 MM,MAX SIZE 2 CM ?CORAL 1 CM LONG IN LOWEST CORE SEGMENT HARD* 59 451 80 3 0.0 30.0 717.50 720.50 720.80 JL LAPILLI CONT FROM ABOVE SECT. (80-2) HARD* 59 451 80 3 30.0 120.0 717.50 720.80 721.70 JL VITRIC TUFF N3-DK.GRY,5G2/1-GREENISH BLK,N4-MED. GREY 30-60 CM GRUNDGED UP CALC. TOP OF VERY FINE VITRIC TUFF UNIT,60-120 CM N3 TO 5G2/1 FINE VITRIC TUFF,FAINTLY LAMIN.,DIP 30 DEG.,VERY UNIFORM IN GRAIN SIZE,AT 65-70 CM N4 ULTRA FINE CALC. VITRIC TUFF (NOT AS LIGHT COLORED AS USUAL) HIGH. DEF. 30-60 CM HARD* 59 451 80 CC 0.0 55.0 717.50 721.80 722.25 JL FINE VITRIC TUFF N2,5G2/1 AS BASE OF SECT.3 BADLY CHEWED UP BY DRILLING,HIGH. DEF. HARD* 59 451 81 1 0.0 130.0 727.00 727.00 728.30 JL VITRIC TUFF N2,5G2/1,N3-MED.DK.GRY N2 TO 5G2/1 FINE TO VERY FINE V.T.,FAINTLY AND REGULARLY LAMIN. ,30 DEG. DIP,RARE VITRIC CLASTS (1-4 MM) ORIENTED PARALLEL BDDY,BEDS OF ULTRAFINE N3 DENSE STRUCTURLES VT UP TO 4 CM THICK AT 6-10 37-41 AND 101-105 CM, THEY HAVE GRADATIONAL LOWER BOUNDARIES WITH F.V.T. AND ABRUPT UPPER BOUNDARIES HIGH. DEF. AT 26-33, 45-50,59-70,85-100,AND 110-130 CM HARD* 59 451 81 2 0.0 150.0 727.00 728.50 730.00 JL FINE VITRIC TUFF W/INTERBEDS OF ULTRA FINE VITRIC TUFF 5B5/1-BLUE GRY,N3,5B4/1,N6-MED.LT.GRY,5G2/1 72-86 CM FVT AS ABOVE BUT W/5BK/1 VITRIC CLASTS (1- 3 MM) ORIENTED ALONG SOME LAMINAE,92-100 CM CTCT BTW TWO F.V.T. UNITS-- N3 ULTRA FINE V.T. ABOVE VITRIC TUFF W/5BJ/1 ANGULAR 1-2 MM CLASTS ABOVE N6 CALC. FVT ABOVE N6 CALC. FVT W/BIOTURB. ABOVE N3 FVT (FOR MORE DETAIL SEE DRAWING ON VISUAL DESC. FORM),100-50 CM FAINTLY LAMIN. F.V.T. (DIP 25 DEG) N3-5G2/1 AS BEFORE HIGH. DEF. 45-72 AND 86-92 CM NOTE: INTERVALS 72-86 AND 92-100 CM HARD* 59 451 81 3 0.0 150.0 727.00 730.00 731.50 JL FINE VITRIC TUFF N3,5G2/1,5B4/1 AS BEFORE,AT 62-73 CM W/SCATTERED ANG. VITRIC 5B4/1 3-5 CM CLASTS ,90-150 CM AS ABOVE BUT W/COARSER GRAINED ASPECT ALTHO STILL A F.V.T. HIGH. DEF. 45-62 AND 73-90 CM,REST UNDEFORMED HARD* 59 451 81 4 0.0 75.0 727.00 731.50 732.25 JL VITRIC TUFF N3,5G2/1,5B4/1,N5,N6,N2-DK.GRY,N3-DK .GRY 0-27 CM FINE V.T. TO V.T. AS AT BASE OF LAST SECT.,27-50 CM THIN INTERBEDS OF: (1) LAMINATED N3- 5G2/1 F.V.T.,(2) N3 ULTRA F.V.T.,AND (3) N3-5B4/1 VITRIC TUFF (MICROBRECCIA),BEDS VARY FROM 1 TO 5 CM THICK,50-56 CM N5 + N6 CALC. BIOTURB. ZONE OF F.V.T. ,68-75 CM N2-N3 VERY F.V.T. HIGH. DEF. 12-27 CM FORAMS 50-56 CM HARD* 59 451 81 CC 0.0 52.0 727.00 732.35 732.77 JL VITRIC TUFF N2,N3,5G2/1 0-30 CM N2-N3 VERY FINE V.T. W/FAINT LAMINAE OF 5G2/1 VITRIC FINE SAND SIZED GRAINS,30-52 CM THE ABOVE 2 LITH. IN A COMPLEX SOFT-ROCK SLUMP STRUCTURE HARD* 59 451 82 1 0.0 150.0 736.50 736.50 738.00 JL FINE VITRIC TUFF,FINE LAPILLI 5G2/1 0-20 CM 5G2/1 F.V.T.,28-42 CM 5G2/1 FINE LAPILLI (1-3 MM) 70% VITRIC,42-47 CM F.V.T. AS ABOVE,47-150 CM FINE LAPILLI (1-3 MM) AS ABOVE,GRADUALLY COARSENING DOWN SECTION UNTIL AT BASE OF SECT.,AV. GRAIN SIZE IS 3-5 MM (MAX SIZE 2 CM),CLASTS:MATRIX 4:1,VITRIC:LITHIC 2:1,UNSORTED AND UNORIENTED HIGH. DEF. 20-28 CM CONTINUES INTO SECT.2 HARD* 59 451 82 2 0.0 65.0 736.50 738.00 738.65 JL LAPILLI AS IN LOWER PART OF SECT.1 HARD* 59 451 82 2 65.0 150.0 736.50 738.65 739.50 JL FINE VITRIC TUFF 5G2/1 AS BEFORE W/SCATTERED 1 MM CLASTS,126-133 CM IRREGULAR LAMINAE--SLUMPED ULTRA FINE V.T. HARD* 59 451 82 3 0.0 150.0 736.50 739.50 741.00 JL LAPILLI,VITRIC TUFF 0-65 CM CONTINUATION OF FVT FRM SEC.2,5-7 AND 12-20 CM LAPILLI LAYERS,AT 65 CM COARSENING BEGINS AND GRADED UNIT PASSES DOWN FROM THE F.V.T. OF THE TOP 65 CM INTO LAPILLI AS IN SEC.1 CONTINUES TO SEC.4 HARD* 59 451 82 4 0.0 118.0 736.50 741.00 742.18 JL LAPILLI 5B4/1 CONTINUATION DOWN OF SEC.3,BASE OF GRADED BED AT 118 CM,IN LOWER 60 CM OF THE UNIT AVE. CLAST SIZE IS 3-5 MM (MAX 2 CM),CLASTS:MATRIX IS 2:1,VITRIC:LITHIC IS 2:1 HARD* 59 451 82 4 118.0 135.0 736.50 742.18 742.35 JL FINE VITRIC TUFF 5G2/1 AS BEFORE HARD* 59 451 82 5 0.0 40.0 736.50 742.50 742.90 JL FINE VITRIC TUFF CONT. OF SEC.4 HIGH DEF. 0-24 CM HARD* 59 451 82 CC 0.0 35.0 736.50 743.00 743.25 JL FINE VITRIC TUFF,LAPILLI 5B4/1 0-10 CM F.V.T. AS IN SEC.4 + 5,10-20 CM F.V.T. GRUNDGE,20-35 CM 5B4/1 LAPILLI AV. SIZE 2-3 MM (MAX 7 MM) HIGH. DEF . 10-20 CM HARD* 59 451 83 1 0.0 150.0 746.00 746.00 747.50 JL LAPILLI 5G2/1,5B4/1 AVE. SIZE 2-3 MM (MAX. 1 CM),CLASTS:MATRIX 4:1,LITHIC:VITRIC 5:1,ANG.-SUBANG. UNSORTED,UNORIENTED,36-39 CM A LARGE ROUNDED CLAST OF 5B4/1-N6 CALCAREOUS F.V.T. (TOP OF GRADED BED), 88-89 CM VAGUE BAND OF CALC 5B4/1 BIOTURB F.V.T.-- CONTACTS OBSCURE AND FUZZY,98-150 CM LAPILLI RUBBLE HIGH. DEF. 98-150 CM HARD* 59 451 83 2 0.0 32.0 746.00 747.50 747.82 JL LAPILLI 15-23 CM LAPILLI AS BEFORE,0-15 AND 23-32 CM DRILLING RUBBLE HIGH. DEF.-DRLG.RUBBLE 0-15 AND 23-32 CM HARD* 59 451 83 CC 0.0 17.0 746.00 748.20 748.27 JL LAPILLI AS IN SECS. 1 + 2 HARD* 59 451 84 1 0.0 150.0 755.50 755.50 757.00 JL LAPILLI 5G2/1-GRNISH BLK MASSIVE,UNSORTED, UNORIENTED (VAGUE ORIENTATION OF TABULAR FRAGS. BTW 70 AND 150 CM),DIP 30 DEG.,CLASTS:MATRIX = 3 OR 4:1, VITR:LITH = 1:3,AV. SIZE 2-3 MM,MAX SIZE (EXCLUDING LARGE VESICULAR COBBLE AT 37-40 CM) 1.5 CM TRACE ORGANIC CACO3 DEBRIS HARD* 59 451 84 2 0.0 150.0 755.50 757.00 758.50 JL LAPILLI CONT. OF SECT.1 W/O CHANGE HARD* 59 451 84 3 0.0 150.0 755.50 758.50 760.00 JL LAPILLI AS IN SECS.1 + 2 W/O CHANGE HIGH. DEF. 51-59,95-100,109-117,AND 125-150 CM HARD* 59 451 84 4 0.0 56.0 755.50 760.00 760.56 JL LAPILLI AS IN SECS.1-3,UNCHANGED HARD* 59 451 84 CC 0.0 45.0 755.50 761.25 761.60 JL LAPILLI FRAGMENTS AND GRUNDGE HIGH. DEF. HARD* 59 451 85 1 0.0 142.0 765.00 765.00 766.42 JL LAPILLI 5G2/1 MASSIVE,STRUCTURELESS,UNSORTED, UNORIENTED,SOMEWHAT FINER GAINED THAN CORE 84,AV. CLAST SIZE 1-1.5 MM,MAX SIZE 1.3 CM,CLASTS:MATRIX 2:1,VITR:LITH 1:3 OR 4 142-150 CM VOID HARD* 59 451 85 2 0.0 139.0 765.00 766.50 767.89 JL LAPILLI,VITRIC TUFF (FINE) 5G2/1,N2 0-78 CM LAPILLI AS IN SEC.1 BEGINNING TO COARSER DOWNWARD FROM 50 CM,BETWEEN 50 + 78 CM AV. CLAST SIZE 2-3 MM (MAX 1.5 CM) OTHERWISE SAME AS SEC.1,78-112 CM N2 TO 5G2/1 F.V.T.--STRUCTURELESS UNIFORM,CONTACT W/TOP LAPILLI NOT SHARP,112-139 CM LAPILLI--SOMEWHAT FINER THAN PREVIOUSLY DESCRIBED,IT IS MORE OF A VITRIC TUFF WITH 10-15% CLASTS W/MAX 8 MM SIZE,FAINT NEARLY HORIZONTAL BEDDING IN BOTTOM 3 CM OF CORE,139-150 CM VOID HARD* 59 451 85 3 0.0 140.0 765.00 768.00 769.40 JL FINE VITRIC TUFF N1,5G2/1,N3-MED.GRY,N4-MED.DK. GRY N1-5G2/1 F.V.T. W/SCATTERED CLASTS OF VITRIC AND LITHIC COMPOSITION UP TO 5 MM AND W/ZONES OR ILL-DEFINED BEDS OF CONCENTRATED CLASTS 3-4 CM THICK ,AT ABOUT 90 CM GRAIN SIZE BEGINS TO COARSEN AND FROM 100-128 CM IT IS A LAPILLI IN WHICH CLASTS OCCUPY 20-25% AND AVE. 2-3 MM IN SIZE (MAX 4-5 MM), VITR.:LITH IS 1:4,ABRUPT CTCT W/UNDERLYING FVT,128- 132 CM N3-N4 VERY FVT--CALCAREOUS (TOP OF TYPICAL GRADED BED) AND BIOTURBATED WITH BEDDING DIP OF 25 DEG.,132-140 CM VITRIC TUFF TO FVT AS AT TOP OF SECT ,140-150 CM VOID 45-55 HIGH. DEF. HARD* 59 451 85 4 0.0 70.0 765.00 769.50 770.20 JL LAPILLI N2,5G2/1 C:M IS 3:1,V:L IS 1:5,AV. S SIZE 2-3 MM,MAX SIZE 1 CM,UNSORTED,UNORIENTED HIGH DEF. 0-9,25-30,AND 50-70 CM HARD* 59 451 85 CC 0.0 45.0 765.00 770.34 770.69 JL VITRIC TUFF N4-MED.GRY,5BG4/1,5G2/1 0-11 CM VITRIC TUFF W/15-20% LAPILLI CLASTS,11-25 CM DRLG. GOUGE CONTAINS 2 COBBLE SIZE PIECES OF N4 CALCAREOUS VERY F.V.T.,BIOTURBATED,ONE W/5 CM LAYER OF 5BG4/1 ULTRA F.V.T.,25-45 CM N4-5G2/1 FVT--SLUMP STRUCTURES DRILLING GOUGE 11-25 CM HARD* 59 451 86 1 0.0 150.0 774.50 774.50 776.00 Z VITRIC,LITHIC AND CRYSTALLOCLASTIC TUFF (SEDIMENTA RY) <0.2 MM CONSISTS OF APHYRIC BASALTS,OXIDIZED ANDESITES,ALT. VOLC. GLASS AND GLASSY VOLC. ROCK HARD* 59 451 86 2 0.0 79.0 774.50 776.00 776.79 KS VITRIC-LITHIC TUFF 5G4/1 MASSIVE MED-CRSE HARD* 59 451 86 2 79.0 150.0 774.50 776.79 777.50 KS MICROBRECCIA 5G4.5/1 C/M = 5/1,CLASTS SUBRDD- SUBANG,AVE SIZE 0.7 MM ALTERED GLASSY BASALT 40%, OXIDIZED ANDESITE CLASTS 3%,SOME OLIVINE AND PLAG. CRYSTALS,MX IS SMALL FRAGS OF SAME LITH. W/ZEOL. AND CARB. CEMENT HARD* 59 451 86 3 0.0 54.0 774.50 777.50 778.04 KS MICROBRECCIA SAME AS ABOVE SECT. 2 HARD* 59 451 86 3 54.0 150.0 774.50 778.04 779.00 KS TUFF N4 54-124 CM N4 FINE TUFF SLT + CLY SIZE, 124-143 CM N4 FINE-MED SAND TUFF,143-150 CM GRANULE CRSE + MED SS MASSIVE TUFF HARD* 59 451 86 CC 0.0 39.0 774.50 779.10 779.39 KS TUFF,MICROBRECCIA 0-18 CM SAME GRANULE-MED SS TUFF AS BTM OF SECT.3,18-39 CM VITRIC LITHIC SED. MICROBRECCIA 20 MM PUMICE CLAST AT 20 CM PUMICE HARD* 59 451 87 1 0.0 150.0 784.00 784.00 785.50 KS VITRIC AND LITHIC TUFF,VOLCANOCLASTIC SEDIMENTARY BRECCIA 5GY4.5/1,5G2/1 0-18 CM LITHIC AND VITRIC BASALTIC TUFF (<0.1 MM) W/OCCASIONAL LAYERS OF MICROBRECCIA (0.5 CM THICK),18-80 CM VOLC. SED. BRECCIA,C/M IS 2:1,CLASTS SUBRND SUBANG 0.5X0.7 CM (AVE.),MATRIX SAME COMP. AS CLASTS (SEE M) 0.1X0.2 MM SIZE CEMENTED W/LOW TEMP HYDROTHERMAL CALCITE AND ZEOL,NO SORTING OR ORIENTATION OF CLASTS OR MATRIX WAS IDENTIFIED,80-101 CM 5GY4.5/1 BIOTURBD CHALK GRADING DOWN TO 5G2/1 TUFF (AT 95 CM),101-150 CM VITRIC AND LITHIC TUFF (<0.2 MM)--COMPOSITION THE SAME AS FOR BRECCIAS(?) DESCRIBED ABOVE CLASTS ARE ALT.TUFFS,VITROPHILIC BASALTS (BASALTIC ANDESITES), OXIDIZED ANDESITES,ALSO CALCITE AND ZEOLITES IN MATRIX HARD* 59 451 87 2 0.0 150.0 784.00 785.50 787.00 Z ALTERED VOLCANOCLASTIC (SEDIMENTARY) MICROBRECCIA SAME AS IN PREVIOUS SECTIONS (86 CORE),CLASTS 0.5X 0.7 CM (AVE.) TO 2X4 CM (MAX),NO GRADING OR SORTING, 70-150 CM VITRIC AND LITHIC TUFFS W/SOME GRADED BEDDING--COMPOSITION THE SAME AS OVERLYING MICROBREC CIA 2X4 CM CLAST OF ALTERED ANDESITE AT 65 CM CLAST COMP: VESICULAR PL-PHYRIC BASALTS,ALT. ANDESIT ES,GLASS,VITRIC TUFFS,CARBONATE,ZEOLITES HARD* 59 451 87 CC 0.0 30.0 784.00 787.10 787.30 Z VITRIC AND LITHIC TUFF (FINE GRAINED) SAME AS TUFF OF LOWER PART OF SECT.2 (CORE 87),SLI. LAMIN. HARD* 59 451 88 1 0.0 103.0 793.50 793.50 794.53 KS VOLCANIC SEDIMENTARY BRECCIA 5GY3/1,-BLK C/M IS 4/1,MAX CLAST SIZE 4 CM DIA BLK V.T.,RND CLASTS (MAINLY PUMICE) 1.5 CM IN SIZE ROUNDED AND IMBRIC IMBRICATE-ORIENTED CLASTS OF FINE V.T. AT 13 AND 30 CM SS AT 30 CM (MINOR) HARD* 59 451 88 1 103.0 150.0 793.50 794.53 795.00 KS VITRIC TUFF 5GY4/1,5GY2/1 103-105 CM 5GY4/1 BIOTURBATED CALCAREOUS VITRIC TUFF,105-150 CM WELL SORTED MASSIVE 5GY2/1 MED SS VITRIC TUFF SS AT 104 CM--MINOR HARD* 59 451 88 2 0.0 35.0 793.50 795.00 795.35 KS VITRIC TUFF SAME SS AS SECT.1 HARD 33235000.3651 59 451 88 2 35.0 90.0 793.50 795.35 795.90 KS MICROBRECCIA 5GY3/1 MAX CLAST SIZE 1 CM (AVE. 0.5 CM) PREDOMINANTLY PUMICE,LESSER BASALT ALSO 145-150 SAME SECT. HARD 33235000.3651 59 451 88 2 90.0 145.0 793.50 795.90 796.45 KS VITRIC TUFF 5GY3/1 GRADING DOWN TO MICROBRECCI A HARD 33235000.3651 59 451 88 2 145.0 150.0 793.50 796.45 796.50 KS MICROBRECCIA AS 35-90 CM HARD 33133000 59 451 88 3 0.0 70.0 793.50 796.50 797.20 KS MICROBRECCIA 5GY3/1 AS ABOVE,MAX CLAST SIZE 5 MM (AVE. 3 TO 4 MM) 50% GLASSY BASALT,5% BROWN ALTERED ANDESITE HARD 33131000 59 451 88 CC 0.0 20.0 793.50 797.30 797.40 KS MICROBRECCIA SAME AS SECT.3 DISTURBED HARD 33131000 59 451 89 1 0.0 30.0 803.00 803.00 803.30 TUFF 5G3/1 COARSE TUFF-MICROBRECCIA (LITH. AS IN LOWER BRECCIA) TO MED-FINE TUFF,1 CM FINE SS LAYER AT 20-30 CM (40 DEG DIP) HARD 33133000 59 451 89 1 30.0 128.0 803.00 803.30 804.28 VOLCANIC SED. C/M IS 5 OR 6/1,CLASTS SHOW SOME IMBRICATION 55% PUMICE,40% ALT.BASALT,5% OXIDIZED ANDESITE OR BASALT,MATRIX FINE ALT. GLASS HARD 33219000.3651 59 451 89 1 128.0 150.0 803.00 804.28 804.50 TUFF 5GY2/1 128-139 CM FINE VITRIC TUFF,139-50 CM FINE SAND-SIZED TUFF HARD 33133000 59 451 89 2 0.0 30.0 803.00 804.50 804.80 KS VITRIC TUFF SAME AS LAST SECTION BASE HARD 33133000 59 451 89 2 30.0 150.0 803.00 804.80 806.00 KS SEDIMENTARY LITHIC BASALT BRECCIA -RED C/M IS 1-3/1,MAX CLAST SIZE 1.2 CM,SOME IMBRICATION 60% SUBRND TO ANG FRESH BASALT,30% SUBRND ALT. BASALT, 14% PUMICE, 1% RED ALT. BASALT OR ANDESITE-SUBRND INCLUDES CORE CATCHER HARD 33131000 59 451 89 CC 0.0 0.0 803.00 806.10 806.10 KS SED. LITH. BASALT BRECCIA SAME AS BASAL SECT.2 HARD 33131000 59 451 90 1 0.0 70.0 812.50 812.50 813.20 JL LAPILLI N3-DK.GREY,5B4/1-DK.BLUISH GREY,-RED BRN C:M IS 5:1,V:L IS 1:1,AV. SIZE 3-4 MM MAX SIZE 2 CM (ABOUT 15% GREATER THAN 5 MM),MOSTLY ANG. TO SUBANG,UNSORTED,UNORIENTED,1-2% RED BRN CLASTS PYRITE CLUSTERS IN TOP MOST CORE SEGMENT PYRITE HARD 33219000.3651 59 451 90 1 70.0 80.0 812.50 813.20 813.30 JL FINE VITRIC TUFF N3-MED DK GRY FAINT BEDDING WITH STRING OF LITHIC CLASTS 1 MM IN DIA,DIP 15-20 DEGREE HARD 33133000 59 451 90 1 80.0 114.0 812.50 813.30 813.64 JL LAPILLI -RED BRN MUCH FEWER COARSE CLASTS THAN IN ABOVE,AV. SIZE 1.5-2,MAX SIZE 2 CM,3% COARSE,V:L IS 1:1,RED BRN CLASTS 1-2% HARD 33219000.3651 59 451 90 CC 0.0 20.0 812.50 813.74 813.84 JL LAPILLI AS IN BOTTOM OF SEC.1 MUCH DRILLING DISTURBANCE HARD 33219000.3651 59 451 91 1 0.0 82.0 822.00 822.00 822.82 JL LAPILLI N3-MED.DK.GRY,5B4/1-DK.BLUE GREY AS IN CORE 90,AV. SIZE 2-3 MM,SEVERAL LG. CLASTS (>3 CM) ONE ?CORAL ?BRYOZOAN SECTION (5.5 CM LONG X 1.2CM) AT 39-41 CM HARD 33219000.3651 59 451 91 1 82.0 150.0 822.00 822.82 823.50 JL COARSE VITRIC LITHIC TUFF N3 82-86 CM N3 F.V.T ,86-150 CM COARSE V.L.T.,MUCH FINER THAN ABOVE LAPILLI,AV. SIZE 0.5-1 MM (MAX SIZE 1.5 CM),20% CLASTS >4MM,VITR:LITH IS 1:1 HIGH. DEF. 82-98 CM HARD 33133000 59 451 91 2 0.0 27.0 822.00 823.50 823.77 JL COARSE VITRIC LITHIC TUFF N3,5G2/1 20-25% CLASTS >5%,N3-5G2/1 COLOR HARD 33133000 59 451 91 CC 0.0 0.0 822.00 823.88 823.88 JL COARSE VITRIC LITHIC TUFF N3,5G2/1 5% CLASTS >4 MM HARD 33133000 59 451 92 1 0.0 150.0 831.50 831.50 833.00 JL LAPILLI N3,5G3/1,5BG5/1 CRSE IN TOP 10 CM,AV. 3-4 CM W/MAX 3 CM,FROM 40-150 CM DWNCORE GRAIN SIZE GRADUALLY DECREASES FROM LAPILLI TO A CRSE TUFF (N3- 5G3/1),VITR:LITH - 1:3,AV. SIZE 1-2 MM (MAX 1.5 CM) C:M - 1:1 AT 40 CM,AT BTM OF SEC A CRSE TUFF W/5-10% CLASTS (MAX SIZE 5 CM),FROM 65-85 CM 3-5 MM CLASTS ARE DOMINANTLY 5BG5/1 VITRIC LARGE FINE GRAINED VESICULAR BASALT COBBLE AT 13-33 CM BASALT,TUFF HARD 33219000.3651 59 451 92 2 0.0 39.0 831.50 833.00 833.39 JL TUFF N3,5G2/1 COARSE TO VERY COARSE,UP TO 25% CLASTS >4 MM HARD 33133000 59 451 92 2 39.0 150.0 831.50 833.39 834.50 JL LAPILLI AS USUAL,AT TOP--AV. SIZE 2-4 MM (MAX SIZE 2 CM),VITR:LITH 1:1,C:M 2 OR 3:1,GRADING DOWN AT BTM TO AV. SIZE 1-2 MM (MAX SIZE 1.5 CM),UNSORTED ,UNORIENTED HARD 33219000.3651 59 451 92 3 0.0 10.0 831.50 834.50 834.60 JL LAPILLI AS IN BASE OF SEC.2 HIGHLY DISTURBED HARD 33219000.3651 59 451 92 CC 0.0 32.0 831.50 834.74 834.96 JL TUFF N3,5G2/1,5G4/1 0-2 AND 4-10 CM N3-5G2/1 LITHIC-VITRIC TUFF,2-4 CM 50% CLASTS LAPILLI LAYER, 10-14 CM DISRUPTED CALCAREOUS LAYER W/BIOTURBATION 5G4/1 BURROWS(?),14-32 CM N3-5G2/1 F.V.T. HARD 33219000.3651 59 451 93 1 0.0 28.0 841.00 841.00 841.28 JL FINE LITHIC/VITRIC TUFF N3,5G2/1 HARD 33133000 59 451 93 1 28.0 150.0 841.00 841.28 842.50 JL LAPILLI N3,5G2/1 AV. SIZE 2-4 MM (MAX SIZE 1 CM--OCCUPY ABOUT 15% OF CORE),C:M IS 3:1,V:L IS 1:1 HARD 33219000.3651 59 451 93 2 0.0 85.0 841.00 842.50 843.35 JL LAPILLI AS IN SEC.1,BECOMING COARSER W/MAX CLAST SIZE AS HIGH AS 4 CM(ONLY ONE SEEN) HARD 33219000.3651 59 451 93 2 85.0 150.0 841.00 843.35 844.00 JL TUFF,LAPILLI N4-GREY 85-100 VERY CRSE LITHIC/ VITRIC TUFF--ESSENTIALLY AS ABOVE IN LITHOLOGY,BUT AV. SIZE 1 MM (MAX 3 MM),ABRUPT CONTACT AT BASE, 100-105 N4 VERY FINE TUFF--CALCAREOUS AND BIOTURBD, 105-123 CM FINE LAPILLI--MAX SIZE 4-5 CM,123-137 CM CRSE LAMIN. TUFF W/FINE CLASTS 1-2 MM LAMINAE,BEDDNG DIPS 20 DEG.,137-150 CM LAPILLI AS IN 105-123 INT. HIGH. DEF. 105-123 CM HARD 33133000 59 451 93 3 0.0 55.0 841.00 844.00 844.55 JL LAPILLI N4 AS AT BASE OF SECT.2,32-38 CM V.F. CALCAREOUS BIOTURBATED N4 TUFF HIGH. DEF. ALL EXCEPT 32-38 CM HARD 33219000.3651 59 451 93 CC 0.0 40.0 841.00 844.75 845.05 JL LAPILLI AS ABOVE HIGH. DEF. HARD 33219000.3651 59 451 94 1 0.0 150.0 850.50 850.50 852.00 R TUFF,LAPILLI N4,N3 0-2 CM N4 CALCAREOUS LAMINA E,2-13 CM N3 FINE VITRIC TUFF,13-86 LITHIC (VITRIC) LAPILLI TUFF-- C/M 5/1 AND V/L 1/4 UNG. CLASTS MAX. 3 CM,86-90 CM N3 F.V.T.,90-93 CM TOP OF LAPILLI UNIT RECRYSTALLIZED TO CARBONATE,93-130 CM LAPILLI AS 13-86 CM,130-133 CM N4 CALCAREOUS INTERVAL,133-150 CM N3 F.V.T. W/10% LAPILLI CLAST COMPOSITION OF LAPILLI TUFF: BASALT 60%,ANDESITE 10%,PUMICE+GLASS 30% FORAM-RICH INTERVAL 130-133 CM 33219000.3651 59 451 94 2 0.0 150.0 850.50 852.00 853.50 TUFF N3 0-30 CM LAPILLI TUFF--C/M = 1/1 AND V/L = 4/1,30-53 LAPILLI TUFF C/M=4/1 V/L=4/1,53-61 CM LAP. TUFF C/M=6/1 V/L=4/1,61-62 CM F.V.T. N3 LAMINAE,62-68 CM CALCAREOUS N4 LAYER SLI. BIOTURBD. AT BTM,68-72 CM N3 F.V.T.,72-150 CM V.T. GRADING TO LAPILLI TUFF (90CM) C/M=3/1 GRADING TO V.T. (98CM) 33219000.3651 59 451 94 3 0.0 150.0 850.50 853.50 855.00 R TUFF N3 0-50 CM LAPILLI TUFF 3/1,50-70 CM N3 F.V.T. LAMINATED--BEDDING DIP 27 DEG.,70-128 CM MASSIVE F.V.T.,128-150 CM LAPILLI TUFF 33219000.3651 59 451 94 4 0.0 40.0 850.50 855.00 855.40 R LAPILLI,TUFF 0-17 CM LAPILLI C/M=4/1,17-40 CM TUFF--SIZE INCREASING DWNWRD HARD 33132000 59 451 94 CC 0.0 20.0 850.50 855.50 855.60 R LAPILLI TUFF C/M IS 4/1,V/L IS 4/1 33132000 59 451 95 1 0.0 90.0 860.00 860.00 860.90 R LAPILLI TUFF N3 C/M IS 3/1,V/L IS 1/1,IRRE. SHAPE,SUBROUNDED ALT. + FRESH BSLT 50%,ANDESITES 5%,PUMICE + GLASS 45% HARD 33131000 59 451 95 1 90.0 150.0 860.00 860.90 861.50 R TUFF 5GY2/1,N2 90-92 5GY2/1 LAMINAE,92-150 CM N2 F.V.T. W/1% LAPILLI FRAG.,SOME LAYERS W/MICRO- FRACTURES SILICA FILLED HARD 33133000 59 451 95 2 0.0 17.0 860.00 861.50 861.67 R VITRIC TUFF AS BTM SECT.1 HARD 33133000 59 451 95 2 17.0 95.0 860.00 861.67 862.45 R LAPILLI TUFF AS SECTION 1,66-70 CM F.V.T. AS 0-17 CM HARD 33132000 59 451 95 2 95.0 150.0 860.00 862.45 863.00 R VITRIC TUFF AS 66-70 CM,PAR. BEDDING 108-110 CM, 124-128 CM LAYER ENRICHED IN LAPILLI (30%) HARD 33133000 59 451 95 3 0.0 150.0 860.00 863.00 864.50 R VITRIC TUFF,LAPILLI 5YR2/1 0-6 CM V.T. AS BTM (OF PREV. SECT.),6-27 CM LAPILLI TUFF AS SEC.1,27-50 CM V.TUFF (INCREASING SIZE DWNCR),50-70 CM LAPILLI AS BEFORE,70-85 CM TUFF (DECREASING SIZE) W/5YR2/1 LAMINAE AT 76-78 CM,85-94 CM LAPILLI,94-114 CM VERY FINE TUFF--CARBONATE BEARING NEAR THE BOTTOM AND IN OTHER PATCHES,114-150CM LAPILLI TUFF HARD 33133000 59 451 95 4 0.0 33.0 860.00 864.50 864.83 R FINE VITRIC TUFF CARBONATE-BEARING (ABOUT 20%), MASSIVE HARD 33133000.1100 59 451 95 CC 0.0 20.0 860.00 864.93 865.03 R LAPILLI TUFF AS IN PREVIOUS SECTIONS BUT WITH MORE ANDESITE CLASTS (5%) ANDESITE HARD 33111000 59 451 96 1 0.0 150.0 869.50 869.50 871.00 R LAPILLI TUFF 5GY2/1,5YR2/1 15% COBBLE AND BRECCIA CLASTS OF 5YR2/1 F.V.T. MASSIVE AND 5% BSLT (20% TOTAL),M/C RATIO IS 4/1,V/L 3/3=1/1 CLASTS: BASALT 50%,PUMICE+GLASS 45%,VITRIC TUFF 5% HARD 33111000 59 451 96 2 0.0 150.0 869.50 871.00 872.50 R LAPILLI,TUFF 5Y2/1 0-10 CM LAPILLI,10-20 CM SAME COLOR TUFF,20-70 CM N2 TUFF--30-32 CM W/20% 5Y2/1 LAPILLI,70-80 CM LAPILLI INTERVAL,80-100 CM TUFF AS BEFORE,100-150 CM LAPILLI AS BEFORE HARD 33132000 59 451 96 3 0.0 19.0 869.50 872.50 872.69 R LAPILLI AS BTM SECT.2 HARD 33111000 59 451 96 CC 0.0 20.0 869.50 872.79 872.89 R LAPILLI AS BTM SECT.2 HARD 33111000 59 451 97 1 0.0 150.0 879.00 879.00 880.50 R FINE VITRIC TUFF N3,5R4/2-GREYISH RED,N4,5YR4/1, 5G4/1-DK.GRNISH GRY,5G2/1,5G4/1 DIP 28-30 DEG., 0-20 CM N3 W/MINOR 5R4/2 LAMINAE,20-30 CM CROSS BEDDING,45-55 CM N4 CALC. V.T. INT.--MASSIVE,73-78 CM BIOT. V.T. NONCALC. 5YR4/1,78-90 CM LAMIN. RIPPLD AND UNDULATED N4 W/MINOR 5G4/1,100-105 CM 5YR4/1, 115-140 CM PARALLEL BEDDING 5G2/1 W/LAMINAE 5G4/1, 140-150 CM 5G2/1 (INCREASING SIZE) HARD 33133000 59 451 97 2 0.0 150.0 879.00 880.50 882.00 R TUFF,LAPILLI 5G2/1,N2,N3,5YR4/1 0-40 CM 5G2/1 TUFF (INCREASING SIZE),40-75 CM SAME COLOR LAPILLI SIZE INCREASING TO BTM. INT.,ANG. CLASTS SOME PARAL. ORIENTED TO BDNG (C/M=3/1 V/L=4/1),75-130 CM N2 FINE TUFF W/N3 CALC. TUFF 83-87 CM,130-150 CM 5YR4/1 TUFF LAPILLI CLASTS (40-75 CM) MOSTLY PUMICE AND GLASS 33133000 59 451 97 3 0.0 52.0 879.00 882.00 882.52 R TUFF,LAPILLI 5YR4/1,5GY2/1 0-40 CM 5YR4/1 TUFF (CONTINUED FRM ABOVE),20-40 CM W/MINOR 5GY2/1,40-52 CM LAPILLI AS SECTION 2 33133000 59 451 97 CC 0.0 20.0 879.00 882.63 882.73 R VITRIC TUFF N3 MASSIVE HARD 33133000 59 451 98 1 0.0 150.0 888.50 888.50 890.00 JL TUFF,LAPILLI 5B4/1,5G2/1,N2-DK.GRY,N3-DK.GRY, N1-BLK,5G2/1-DK.GREEN BLK 0-20 CM INTERBEDDED FINE (<0.25 MM) AND VITRIC (<1 MM) TUFF IN THIN (UP TO 1 CM) BEDS--RNDD LITHIC CLASTS (UP TO 3 MM) ORIENTED ALONG BEDDING,DIP 35-40 DEG.,20-127 CM 5B4/1 TO 5G2/1 LAPILLI--AV. SIZE 2-4 MM (MAX 1.5 CM),C:M IS 1:5 IN UPPER 55 CM AND 1:1 BTW 75 + 135 CM,V:L IS 1:1,MANY OF THE LITHIC CLASTS ARE N2-N3 ULTRA F.V.T. ,127-135 CM COARSE VITRIC TUFF W/ABRUPT CTCT AT 135 CM,135-150 CM N1-5G2/1 ULTRA FINE TUFF W/SOME BIOTURBATION CORED INT. 888.5-898.0 33219000.3700 59 451 98 2 0.0 150.0 888.50 890.00 891.50 JL TUFF,LAPILLI N2-DK.GRY,5B4/1-DK.GRNISH BLUE GREY ,N5 0-68 CM N2-5B4/1 TUFF (AS AT BASE OF SEC.1)-- VERY FINE W/VERY FINE AND DELICATE FAINT LAMIN. AND CURRENT LAMIN.,SLUMP STRUCT.,42-46 CM CALC. N5, BECOMES FINE VITRIC TUFF IN LOWEST 15 CM,68-117 CM CRSE VITRIC TUFF AT TOP GRADING RAPIDLY DOWN INTO LAPILLI 5B4/1--AV. SIZE 2-3 MM (MAX 5 MM) W/RARE LITHIC (SEDIMENTARY) DK.GRY CLASTS (UP TO 1.5 CM) AT TOP ORIENTED PARALLEL TO VAGUE BEDDING,DIP 35 DEG., CLASTS:MATRIX 1:1 VITRIC:LITHIC 1:1,117-150 CM LAPILLI--SAME COMPOSITION AS IN 68-117 CM BUT AV. SIZE 5-7 MM (MAX SIZE 1 CM) 5BG4/1 COLOR AND VIT:LIT IS 2:1 33133000 59 451 98 3 0.0 70.0 888.50 891.50 892.20 JL TUFF N3-MED.DK.GRY,N1-BLK,5YR2/1-BRN BLK,N2-DK. GRY,5G2/1 0-8 CM LAPILLI AS AT BASE OF SECT.2,8-25 CM ULTRAFINE TUFF V.F. LAMIN. AND CROSS LAMIN.--N3 N1 AND 5YR2/1 INTERBEDS W/SUGGESTION OF BIOTURBATION AND BURROWING AT BASE,25-53 CM FINE V.T. VAGUELY BDD IN SHADES OF N2 N3 AND 5G2/1,53-70 CM 5G2/1 VERY CRSE TUFF W/RARE CLASTS (UP TO 4 MM),GRADES GRADUALLY DOWN INTO UNDERLYING LAPILLI 33133000 59 451 98 3 70.0 150.0 888.50 892.20 893.00 JL LAPILLI 5G2/1,N3 AV. SIZE 2-4 (MAX 2 CM),C:M = 2:1 AND VITR:LITH = 1:1--SCATTERED RED BRN CLASTS, COARSEST BTW 90-120 CM (AV. SIZE 4-5 MM),FINER AGAIN BELOW 120 TO 150,FAINT ORIENTATION OF TABULAR CLASTS PARALLEL TO ?BEDDING,30 DEG. DIP HARD 33219000.3700 59 451 98 4 0.0 80.0 888.50 893.00 893.80 JL LAPILLI N3,5G8/1 N3-5G8/1 FINE LAPILLI (?V. CRSE TUFF),AV. SIZE 0.5-1.5 MM (MAX 5 MM),V:L IS 1:3 ,VERY UNIFORM,WELL SORTED (EXCEPT LESS 50 IN TOP 20 CM),FAINT SUGGESTION OF BEDDING HARD 33133000 59 451 98 CC 0.0 46.0 888.50 893.90 894.26 JL FINE LAPILLI OR V.CRSE TUFF AS IN BASE OF SEC.4 HIGH. DEF. 10-40 CM HARD 33133000 59 451 99 1 0.0 150.0 898.00 898.00 899.50 JL VITRIC TUFF N3-MED.DK.GRY,5YR2/1-BRNISH BLK, 5G2/1,5G4/1-GREEN GRY,5GY2/1 0-30 CM N3-5YR2/1 VERY FINE TUFF,30-40 CM 5B4/1 CALC. FINE TUFF (BOMB) ,40-114 CM N3-5G2/1 VITRIC TUFF AT TOP GRADING GRADUALLY DOWN TO LAPILLI AT BASE WHERE CLASTS AV. 2-3 MM (MAX SIZE 1 CM--10-15%),VITRIC:CLASTIC 1:4, 114-126 CM 5G4/1 F.V.T.--TOP OF IT W/RNDD DK.GRY LITHIC CLASTS (0.5-1 CM),126-145 CM 5GY2/1 F.V.T., 145-150 CM N3-5YR2/1 V.F.-TUFF VAGUELY BANDED 0-40 CM HIGH. DEF. ONE LARGE ULTRA FINE TUFF COBBLE (8 CM DIA) IN 40-114 CM INT. CORED INT. 898.0-907. 5 HARD 33219000.3700 59 451 99 2 0.0 33.0 898.00 899.50 899.83 JL ULTRA FINE TUFF N2,5YR2/1 VAGUELY INTERBEDDED HARD 33133000 59 451 99 CC 0.0 30.0 898.00 899.93 900.13 JL TUFF,LAPILLI -DK.GRY,-DK.BRN.GRY,-DK.GRN DRLG. MIXTURE OF ULTRA FINE DK.GRY + DK.BRN.GRY TUFF AND DK.GRN LAPILLI HIGH. DEF. THROUGHOUT,DRLG.MIXTURE 33133000 59 451 100 1 0.0 44.0 907.50 907.50 907.94 Z VITRIC AND LITHIC TUFFACEOUS SEDIMENT GRAIN SIZE INCREASES FROM 0.3 TO 3-4 MM,SUBANG. AND SUBRNDD GRAINS CEMENTED W/ZEOLITES GRAIN COMP: APHYRIC TO APHANITIC BASALTS (BASALTIC ANDESITES),ALT.GLASS,OR EXTRUSIVE ROCKS W/GLASSY MATRIX HARD 33133000 59 451 100 1 44.0 126.0 907.50 907.94 908.76 Z VOLCANOCLASTIC SEDIMENTARY MICROBRECCIA 1X1 CM (AVE) 1-3 CM (MAX),CL:MA = 5:1,SUBANG. SUBRNDD CLAST ,MATRIX <0.5 MM FRAGS OF SAME W/ZEOLITIC CEMENT 5X3 CM ANDESITE CLAST (44-52 CM)--PL-PHYRIC ANDESITE ,PL ABOUT 30%-EUHEDRAL SHORT PRISMS (2-3 MM),GROUND- MASS APHANITIC (POSS. HYDROPILITIC) AND STRONGLY OXIDIZED CLASTS ARE: APHYRIC TO APHANITIC BASALTS (BASALTIC-ANDESITES?),HYDROTHERMALLY ALT. PCS. OF VOLC. ROCKS W/EPIDOTE AND DISSIMINATED PYRITE,FINE GRAINED HOLLOCRYSTALLINE ROCKS (DOLERITE?),ANDESITES W/OXIDIZED GRNDMSS,ALSO CONTAINS ZEOLITES AND ANDESITES HARD 33219000.3700 59 451 100 1 126.0 150.0 907.50 908.76 909.00 Z VITRIC AND LITHIC TUFF <0.5 MM,SAME AS AT THE UPPER INT. OF SECT. 2 FRAGS (5X5 CM) OF PL PHYRIC HYDROTHERMALLY ALT. ANDESITE W/DISSIMINATED PYRITE AND CHLORITE(?) AT 126-136 CM PL-PHYRIC HYDROTHERM ALT. ANDESITE,PYRITE,CHLORITE(?),BASALT,ZEOLITES HARD 33133000 59 451 100 2 0.0 26.0 907.50 909.00 909.26 Z VITRIC AND LITHIC (SEDIMENTARY) TUFF -DK.GREY ABOUT 0.5 MM SIZE,GRAIN SIZE INCREASES DOWNWARD HARD 33133000 59 451 100 2 26.0 45.0 907.50 909.26 909.45 Z VOLCANOCLASTIC SEDIMENTARY MICROBRECCIA 26-32 CM 0.5-0.7 CM SIZE,32-45 CM SAME AS ABOVE W/MORE WIDE LIMITS OF GRAIN SIZE,VARIATION: <0.5 MM-2X1 CM (2-3 MM AVERAGE) COMPOSITION OF CLASTS IN THESE THREE INTERVALS THE SAME AS IN PREVIOUS SECTION HARD 33219000.3700 59 451 100 CC 0.0 21.0 907.50 909.55 909.66 Z VOLCANOCLASTIC-SEDIMENTARY MICROBRECCIA 3X2 CM (MAX) 2X1 MM (AVE) SIZE,NO SORTING OR ORIENTATION, C:M IS 3:1,CLASTS SUBRND AND SUBANG COMPOSITION: ALT. APHYRIC TO APHANITIC EXTRUSIVE ROCKS (BASALTS-- BASALTIC ANDESITES),ANDESITES W/OXIDIZED GROUNDMASS, ALT.GLASS,MATRIX:SMALL (<0.2 MM) CLASTS + ZEOLITES HARD 33219000.3700 59 451 101 1 0.0 10.0 917.00 917.00 917.10 Z TUFFACEOUS MUDSTNE -GRYISH BLK,5YR2/2-DUSKY BRN 33133000 59 451 101 1 10.0 86.0 917.00 917.10 917.86 Z VOLCANOCLASTIC SEDIMENTARY BRECCIA TO TUFFACEOUS VITRIC AND LITHIC SANDSTONE 5G5/2-GRYISH GREEN GRAIN SIZE DECREASES FROM 1.5X1 CM TO 1 MM (WITH OCCASIONAL SCATTERED CLAST UP TO 0.5X1 CM),C:M = 5:1 ,CLASTS SUBANG. TO SUBRND.,SEE M FOR COMP. COMP: ALT. APHYRIC TO APHANITIC EXTRUSIVE ROCKS (BASALTS AND ANDESITES) AND TUFF--5G5/2-ABOUT 80%,OXIDIZED ANDESITES ABOUT 10%,HYDROTHERMALLY ALT. VOLC. ROCKS W/EPIDOTE AND PYRITE,HOLOCRYSTALLINE FRAGMENT OF SHALLOW INTRUSIVE ROCKS--GABBRO--GABBRO-DIORITE, MATRIX--SAME FINE CLASTIC MATERIAL 33219000.3700 59 451 101 1 86.0 104.0 917.00 917.86 918.04 Z TUFFACEOUS SANDSTONE,MUDSTONE 5YR2/2-DUSKY BRN TUFF. SNDSTN INTERBEDDED WITH 5YR2/2 MDSTN,SNDSTN MAINLY CONSISTS OF GRAINS OF HYDROTHERMALLY ALT. VOLCANICS HYDROTHERM. ALT. VOLCANICS 33133000 59 451 101 CC 0.0 27.0 917.00 918.14 918.31 Z TUFFACEOUS SANDSTONE AND MUDSTONE -MED.DK.GRY, 5G2/1-GRNISH BLK,5G4/1-DK.GRNISH.GRY SEQUENCE OF INTERCALATED TUFF. SNDSTN (MED.DK.GRY) W/TUFF. MDSTN (5G2/1) AND TUFF. SNDSTN (5G4/1) SEQUENCE IS DISTURBED BY DRILLING COMPOSED OF GRAINS OF HYDROTHERMALLY ALT. VOLCANIC ROCKS 33133000 59 451 102 CC 0.0 20.0 926.50 926.60 926.70 Z CLINOPYROXENE PHYRIC BASALT IN VOLC. SED. BRECCIA 5G4/1-GRNISH GRY BOULDER OF BASALT IN BRECCIA, CONTACT IS SHARP W/BRECCIA AT BTM OF CC BASALT: ALMOST APHYRIC,PX 1-3% <0.5 M(?) IRREGULAR ANHEDRAL GRAINS,GROUNDMASS--HYALOPILITIC 50-60% CRYSTALLIZED CONSISTS OF PLAGIOCLASE MICROLITH AND GLASS (SOME MAFIC MINERALS COULD ALSO BE PRESENT),VESICLES: 5-7% PARTIALLY EMPTY OR FILLED W/SMECTITE,SHAPE OF VESICLES MAINLY SPHERICAL (2-3 M DIA),THIN VEINS (0.5 MM) ARE FILLED W/GREEN SMECTITE,ONE SIDE OF THE PIECE IS HYDROTHERMALLY ALTERED AND 5G4/1 IN COLOR (SECONDARY MINERALS?) 33219000.3700