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 57 441 1 1 10.0 140.0 0.00 0.10 1.40 MA CLAY 5GY4/1-DK GRN GRY,N1-BLK,N4-MED DK GRY, 5Y3/2-DK OL GRY,10Y4/2-GRY OL MOSTLY 5GY4/1,SLIGHT LY SANDY-SILTY THROUGHOUT,84-91 CM POCKET OF N4 F.G. TO M.G. SDY SILT,125 CM 5Y3/2 MOTTLE (1 CM DIA),128- 140 CM SLI SILTY 10Y4/2 (SILTY DIAT CLAY) HIGH TWO ROUNDED N1 PEBBLES OF 2 CM DIA AT 32 AND 43 CM (APPROX CTR)--BASALT OR DOLERITE? (DIORITE?): DK F.G. GROUNDMASS (BUT PHANERITIC) W/ALTERED LATHS OF FELDSPAR PEBBLE AT 43 CM IS MORE ALTERED BASALT OR DOLERITE? (DIORITE?) W/ALT FELDSPAR LATHS DIATOMS STRONG H25 SMELL 140 PPM H25 FROM PERFORATION INTO VOID IN CORE TUBE,140-150 CM IW SOFT 33211000 57 441 1 2 0.0 140.0 0.00 1.50 2.90 MA CLAY 5GY4/1-DK GRN GRY,5B3/1-DK BL GRY,N2-GRY BK ,5G4/1-DK GRN GRY,5B5/1-MED BL GRY 0-20 CM 5GY4/1 SILTY DIAT CLAY,SLI SILTIER AT DEFORMED CONTACT, 27-29 CM 5GY4/1 CLAYEY SD,40-41 CM SILTIER INTERVAL, 50-130 CM SILTY CLAY SLI MOTTLED W/SILTIER SPOTS, 101-105 AND 139-140 CM 5G4/1 MOTTLES (CLAY-SIZE MAT) ,128-130 CM 5B5/1 MOTTLE,130-140 CM SILTY DIAT CLAY, SLI COLOR VARIATION + SILT CONTENT SEEM TO DEFINE BEDDING WHICH IS DEFORMED BY CORING OPERATION HIGH 7 CM A 1.2 CM ROUNDED PEBBLE OF 5B3/1 VOLCANIC ROCK,POSSIBLY DACITE OR ANDESITE: FEL LATHS,HB,NO QTZ,APHANITIC G.M.,3 MM N2 PUMICE FRAG AT 49 CM PUMICE,VOLC.ROCK (DACITE OR ANDESITE): FEL + HB DIATOMS SMEARS (SS) AT 84 AND 133 CM SOFT TO FIRMER 33211000 57 441 1 CC 0.0 12.0 0.00 3.00 3.02 MA CLAY 5GY4/1-DK GRN GRY,5Y4/1-OL GRY 5GY4/1 CLAY WITH 5Y4/1 SILTY CLAY HIGH SOFT 33211000 57 441 2 1 0.0 150.0 7.00 7.00 8.50 MA SILTY DIATOMACEOUS CLAY 5GY4/1,5Y4/1,5Y5/4 5GY4/1 MOTTLED WITH 5Y4/1 ABOUT EQUALLY IN 3-4 CM IRREGULAR PATCHES HIGH 2 MM PUMICE CLAST AT 60 CM,5Y5/4 ASH AT 142 CM PUMICE,ASH DIATOMS VERY STRONG H25 SMELL PLASTIC 33211000.2220 57 441 2 2 0.0 135.0 7.00 8.50 9.85 GW DIATOMACEOUS CLAY 5GY4/1,5Y5/3 SANDY THROUGH OUT HIGH 5Y5/3 CLAYEY ASH AT 96 CM CLY ASH DIATOMS VOID 45-80 CM PLASTIC 33211000.2220 57 441 2 3 15.0 150.0 7.00 10.15 11.50 GW DIATOMACEOUS CLAY 5GY4/1 HOMOGENEOUS,NOT SDY 15-62 CM SOUPY,62-150 CM HIGH DIATOMS PLASTIC 33211000.2220 57 441 2 4 0.0 150.0 7.00 11.50 13.00 GW SILTY DIATOMACEOUS CLAY 5GY4/1,5Y4/3 HOMOGEN., SLIGHTY SANDY,5Y4/3 SILT SIZED PATCH AT 57 CM 0-60 CM HIGH,80-150 CM SOUPY DIAT VOID 60-80 CM PLASTIC 33211000.2220 57 441 2 5 5.0 105.0 7.00 13.05 14.05 GW DIATOMACEOUS CLAY 5GY4/1,5Y3/2,5Y7/1 5GY4/1 DIAT CLAY,76-81 AND 86-96 CM 5Y7/1 SILT-SIZED ASH, 5Y3/2 V.F.G. CLAYEY ASH AT 42 CM 5-22 CM SOUPY,22- 105 CM HIGH ASH DIATOMS DIAT 10% PLASTIC 33211000.2220 57 441 2 CC 0.0 6.0 7.00 14.15 14.11 GW DIATOMACEOUS CLAY 5Y4/2 MODERATE TO SLIGHT 27% DIATOMS FIRM* 57 441 3 CC 0.0 25.0 16.50 16.60 16.75 GW DIATOMACEOUS CLAY,SANDSTONE 5Y4/1-OL GRY,5Y4/2 0-3 CM HVY CALCITE CEMENTED COARSE GRAINED POORLY SORTED 5Y4/1 LITHIC SDST CONTAINS STRONGER (MOTTLED CLAYST SDST BED OR CLAST?) CEMENTED IN,3-25 CM 5Y4/2 DIAT CLAY SLIGHT CALCITE,SDST DIAT INCLUDES SOME MATERIAL FROM THE CORE TUBE,ONLY SAMPLE HARD SDST AND FIRM CLAY* 57 441 4 CC 0.0 14.0 26.00 26.10 26.14 GW DIATOMACEOUS CLAY,SAND 5Y4/2 0-9 CM 5Y4/2 DIAT CLAY, 9-11 CM GRADED VERY FINE GRAINED SAND, 11-14 CM 5Y4/2 DIAT CLAY DIATOMS FIRM* 57 441 5 CC 0.0 0.0 83.00 83.10 83.10 MA PEBBLE 5Y6/2-LT OL GRY ELONGATE 4 CM 5Y6/2 PEBBLE,CALCITE CEMENTED (EFF W/HCL),SURFACE COATING OF 1 MM ELONGATE RODS-- POSSIBLY FECAL PELLETS (SIMILAR TO FIG ILLUSTRATED X-SECTION SHOWING FROM LEG 56 SITE 434),FAINT LAMINAE RESEMBLING ALGAL ENCRUSTATION OR CONCRETIONARY GROWTH LINES CALCITE FECAL PELLETS,ALGAL ENCRUSTATION ONLY RECOVERY 33219000 57 441 6 CC 0.0 15.0 92.50 92.60 92.65 MA DIATOMACEOUS CLAY 5GY3/2-GRY OL GRN,5GY6/1-GRN GRY SOUPY 2.5 X 5.0 CM CALCAREOUS SUBROUNDED CLAST: CALCITE CEMENTED 5GY6/1 SDY CLAYST W/PUMICE FRAGS AT 7CM,2 X 3 CM PEBBLE OR NODULE SIMILAR TO THAT IN 5 CC: CALC SDY? CLAY W/RODS ON SURFACE AT 11 CM PUMICE,CALCITE DIAT SS TAKEN FROM 2X3 CM PEBBLE AND DIAT CLAY,ONLY RECOVERY FIRM 33213000.3450.2220 57 441 7 1 34.0 150.0 149.50 149.84 151.00 MA DIATOMACEOUS CLAY 5GY4/1-DK GRN GRY,5Y5/1-OL GRY 1.3 CM DIA WORM BURROW (5Y5/1)--CALCITE CEMENTED AT 33 CM,ALMOST LIKE DRILLING WASH,BREAKS INTO SMALL CHUNKS <1 CM (SLIGHTLY FISSILE?),DIFFICULT TO OBSERVE FEATURES BADLY DEFORMED IN DRILLING,ALMOST LIKE WASH,SOUPY 34-75 CM,HIGH DEF 75-150 CM SS AT 114 CM,0-34 CM VOID SOFT OVERALL,BUT INDIVIDUAL SMALL CHIPS ARE WELL INDURATED,BECOMING BETTER INDURATED DOWNWARD* 57 441 7 2 0.0 37.0 149.50 151.00 151.37 MA DIATOMACEOUS CLAY 5GY4/1-DK GRN GRY,5Y7/4-PL YEL ,N2-GRY BLK 5GY4/1 DIAT CLAY SLI MOTTLED W/N2, 5Y7/4 CALC CHALK MOTTLES 5-15 CM MODERATE CHALK DIATOMS SS AT 13 AND 29 CM FIRM* 57 441 7 CC 0.0 14.0 149.50 151.47 151.51 MA DIATOMACEOUS CLAY 5GY4/1-DK GRN GRY,N8 V FINE SILT N8 ASH MOTTLES AT 10 CM MODERATE DIAT FIRM* 57 441 8 1 0.0 150.0 206.50 206.50 208.00 GW DIATOMACEOUS CLAY 5Y3/2 14-17 CM V FIRM LAYERS ,20-150 CM HOMOGENEOUS,31-37 CM FAULT SURFACE (RT. TO LEFT) TRUE INCLINATION 45 DEG SLICKENSIDE RAKE 80 DEG CLOCKWISE FROM STRIKE OF SURFACE REVERSE FAULT HOLE DEVIATION AT 149 M OF 1.2 DEG 0-14 CM DRILL CUTTINGS,REST MODERATE DEF DIATOMS, SPONGE FRAGMENT AT 131 CM VOID 17-20 CM FIRM* 57 441 8 2 0.0 24.0 206.50 208.00 208.24 GW DIATOMACEOUS CLAY 5Y3/2 HOMOGENEOUS MODERATE DIATOMS FIRM* 57 441 8 CC 0.0 20.0 206.50 208.40 208.50 GW DIATOMACEOUS CLAY 5Y3/2 HOMOGENEOUS MODERATE DIATOMS VERY FIRM* 57 441 9 1 0.0 150.0 263.50 263.50 265.00 GW DRILL CUTTINGS,DIATOMACEOUS CLAYSTONE 5Y3/2 0-42 CM WASH RESISTENT CORE FRAGMENTS AS BELOW,42- 85 CM 5Y3/2 DIAT CLAYST POSS FAULT W/35 DEG INCLIN. AT 50-56 CM (LEFT TO RT),POSS FAULT W/35 DEG INCLINATION AT 57-64 CM (LEFT TO RT)--GROOVES RAKE 85 DEG CLOCKWISE,85-150 CM DRILL CUTTINGS (EXCEPT 135-145 CM WHERE VOID) HIGH 42-85 CM,DRILL CUTTING 85-150 CM DIATOMS THIS CORE WAS CUT AT CORE-CUT TING PUMP PRESSURE FROM 263.5-273.0 M,BUT THE CORE BARREL HAD NOT BEEN CLEANED FOLLOWING WASHING AT HIGH PUMP PRESSURE FROM 216.0 M SOME OR ALL OF THE MATERIAL DESCRIBED AS CORE MAY HAVE BEEN CUT ABOVE 263.5 M SOFT* 57 441 9 2 5.0 150.0 263.50 265.05 266.50 GW DIATOMACEOUS CLAYSTONE 5Y3/2 FRACTURED INTO 1 CM PIECES SOUPY DIATOMS* 57 441 9 3 0.0 50.0 263.50 266.50 267.00 GW CLAYEY DIATOMITE 5Y4/2 0-25 CM HACKLY FRACTURE SOUPY DIATOMS* 57 441 9 CC 0.0 20.0 263.50 267.10 267.20 GW CLAYEY DIATOMITE 5Y4/2 HOMOGENEOUS,LESS BRITTL THAN FIRST TWO SECTIONS SOUPY DIATOMS 22132220.3450