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 A 2 1 0.0 20.0 130.00 130.00 130.20 GW SILTY TUFFITE 5Y4/1 GRADED,V FINE GRAINED (SD- SIZE) AT BASE 3 MM PUMICE CLAST AT 19 CM PUMICE VOID 12-16 CM,NOTE: NO CORE OR CC SAMPLE FOR CORE 1 FIRM 33133000 57 441 A 2 1 20.0 33.0 130.00 130.20 130.33 GW DIATOMACEOUS CLAY 5Y4/2 HIGH DIATOMS FIRM 33213000.3450.2220 57 441 A 2 CC 2.0 19.0 130.00 130.36 130.53 GW DIATOMACEOUS CLAY 5Y4/2 HIGH CALCITIC CONCRETIONS (LARGEST 3 CM IN DIA) AT 2-6 CM CALCIT DIATOMS FIRM 33213000.3450.2220 57 441 A 5 1 0.0 150.0 386.50 386.50 388.00 GW SILTSTONE,TECTONIC BRECCIA 5Y6/1,-BLK,N3,N4 BLOCKS ARE N3 SILTSTONE AND THE SOFTER INTERBLOCK GOUGE MATRIX IS N4 + MORE CLAY-RICH,MANY SMALLER SCALE BLOCKS EXIST,5Y6/1 BED-LIKE STRUCTURE W/2/ DEG INCLINATION (CLAY-SIZED DEVITRIFIED ASH?) AT 10-12 CM,BLK VEIN BUNDLE 1 CM WIDE 5-10 CM AND 10-30 CM, INCLINATION IS 72 DEG AT 58 CM AND 68 DEG AT 136 CM SLIGHT NO RECOVERY FOR CORES 3 + 4 (SOME H CORES (WASHINGS) RECOVERED BUT NOT ENCODED)* 57 441 A 5 2 0.0 150.0 386.50 388.00 389.50 GW TECTONIC BRECCIA N3,5Y6/1 N3 SILTSTONE-AS TECTONIC BRECCIA-AND SOME GRADED SD BEDS,INCLINATION 63 DEG AT 10 CM,5-25 CM N3 CLAYEY SILTSTONE W/V.F. GRADED SDST,5Y6/1 CALC CLAYST AT 60-65 + 91-95 CM, V FINE GRADED SDST 40-56 CM,GRADED UNITS AT 65-91 + 95-100 CM SLIGHT* 57 441 A 5 3 0.0 136.0 386.50 389.50 390.86 GW DIATOMACEOUS CLAYSTONE N3 MED GRAINED 7-11 + 23-26 + 39-44 CM,COARSE GRAINED--UP TO 2 MM GRAINS AT 47-65 CM,V.F.G. SDST 110-115 CM,TOPS OF BEDS PROBABLY UPRIGHT,COULD BE FOLDED,55 DEG INCLINATION AT 90 CM DIATOMS 136-150 CM I.W. SAMPLE* 57 441 A 5 CC 0.0 15.0 386.50 391.06 391.11 GW DIATOMACEOUS SANDY SILTSTONE 0-10 CM DIAT SDY SILTST,10-14 CM MED GRAINED SDST,14-15 CM SDY SILTST ,UPRIGHT* 57 441 A 6 1 40.0 150.0 443.50 443.90 445.00 GW DRILL CUTTINGS DRILL CUTTINGS 0-40 CM VOID SOFT* 57 441 A 6 2 0.0 110.0 443.50 445.00 446.10 GW DRILL CUTTINGS DRILL CUTTINGS SOFT TO FIRM* 57 441 A 6 CC 0.0 10.0 443.50 446.22 446.22 GW DRILL CUTTINGS DRILL CUTTINGS FIRM* 57 441 A 8 1 0.0 20.0 510.00 510.00 510.20 MA PEBBLES,CLAYSTONE N4,5Y4/3 ROUNDED TO SUBRND PEBBLES,POSSIBLY FROM UPHOLE,5 CM DIA DK. PHANERITIC TRACHYTIC(?) BASALT W/FEL PHENOCRYSTS--SLI ALTERED, 2.5 CM DIA N4 SILTSTONE,4 CM CALCITE CEMENTED 5Y4/3 CLAYSTONE,3.5 CM DIA OF SAME CLAYSTONE SOUPY BASALT,FELDSPAR* 57 441 A 8 1 20.0 150.0 510.00 510.20 511.50 MA CLAYSTONE 5Y4/2-OL GRY,5Y3/2-DK OL GRY 20-40 CM 5Y4/2 VITRIC CLAYSTONE (SILTY INTERVAL),40-75 CM 5Y4/2 DIAT CLAYST: PERSISTENT FRACTURES OR PARTING JOINTS NO OFFSET NOTED 40-45 DEG PARTING,75-150 CM 5Y3/2 DIAT CLAYST: PERSISTENT PARTING 32-35 DEG HIGHLY BROKEN UP DURING DRILLING INTO FISSILE CHIPS,MOD DEF 40-60 CM,HIGH DEF ELSEWHERE DIATOMS SS AT 24 AND 58 CM* 57 441 A 8 CC 0.0 20.0 510.00 511.60 511.70 MA DIATOMACEOUS CLAYSTONE RUBBLE 5Y4/2-OLIVE GRAY SOUPY DIATOMS 33213000.3450.2220 57 441 A 9 1 0.0 20.0 568.00 568.00 568.20 GW CLAYSTONE 5Y3/2 0-4 CM 5Y3/2 CLAYST,4-20 CM 5 CALCITIC CONCRETIONARY PEBBLES OR CONCRETIONS, RANGING FROM ORIGINALLY CLAYSTONE TO FINE SDST,ONE-- MICROBRECCIATED--CONTAINS PYRITE VEINS ALL ARE DIFFERENT SOUPY PYRITE NO CC 33233000.3450.2220 57 441 A 10 1 0.0 150.0 576.50 576.50 578.00 MA SILTY CLAYSTONE 5G2/1-GRN BLK SMALL CHIPS DRILL CUTTINGS 1.8 DIA CACO3 CONCRETION AT 13 CM CACO3 CONCRETION SS AT 48 CM FIRM,FISSILE* 57 441 A 10 2 0.0 60.0 576.50 578.00 578.60 MA CLAYSTONE 5G4/1-DK GRN GRY,N4-GRY,N6-GRY 0-50 CM DRILLING CHIPS,50-60 CM LESS THAN 5 MM CALCITE CEMENTED BRECCIA THIN VEINLETS OF CALCITE SEPARATING CLOTS OF 5G4/1 CLAYST (DOES NOT EFF) AND N4-N6 CALC CHALK(??) SILT SIZED W/DK ANG SD-SILT GRAINS TIGHTLY CEMENTED 0-50 CM SOUPY DRILLING CHIPS, 50-60 CM MODERATE 35-50 CM EFF W/HCL CALCITE, CHALK?? BOTTOM MOST LITHOLOGY MAY EXPLAIN WHY CORE CONSISTS OF NOTHING BUT SMALL CHIPS,SS AT 51 (GRN) AND 52 (N4-N6) CM--SMEARS DON'T RECORD DIFFERENCE, THIN SECTION 52-54 CM* 57 441 A 10 CC 0.0 10.0 576.50 578.70 578.70 MA CLAYSTONE 5G6/1-DK GRN GRY,N5 5-10 CM 5G6/1 CALC CLAYST MOTTLED V SLI W/N5 STREAKS,0-5 DRLG CHIPS 0-5 CM HIGH,5-10 CM SLIGHT TO MODERATE* 57 441 A 11 1 0.0 140.0 586.00 586.00 587.40 MA RESEDIMENTED BRECCIA 5Y3/1-DK GRN GRY,5GY4/1-DK. GRN GRY,5Y8/1-YEL GRY,N8-WH,5Y4/1,5GY2/1,-WH,5GY5/1 0-30 CM CUTTINGS--CHIPS OF 5Y3/1,30-115 CM MIXED CLAST COLORS NON-CALC RESED BRECCIA: OVERALL 5GY4/1 TYPICALLY 5 MM OR SMALLER ANGULAR CLASTS. MOSTLY CLAST SUPPORTED W/SPARSE MATRIX HOWEVER SOME CLASTS UP TO 1.5 CM VERY CRUDE STRATIFICATION GIVES POSSIBLE 35-45 DEG DIP CLASTS DOMINANTLY OF 5GY5/1 (+ SLI COLOR VARIATIONS) CLAYST W/A FEW 5Y8/1 ANGULAR (<3 MM) CALC CLASTS AND MINOR CONTRIBUTION OF 5Y4/1 CLAYST SOME CLASTS SILTY (SOME 5GY2/1 GLAUCONITIC)--MOST ARE ANGULAR + APPEAR TO HAVE BEEN LITHIFIED WHEN RESEDIMENTED BUT SOME REGIONS SHOW CLASTS WHOSE MARGINS APPEAR ROUNDED AND CONFORM TO MARGINS OF ADJOINING CLASTS AS THOUGH UNLITHIFIED WHEN RESEDIMENTED + SLI SQUEEZED OR SUTURED TO ADJOINING CLASTS FRACTURES OR JOINTS MEASURED IN UNCUT CORE SECT(ANGLE FROM HORIZ): 60-66 CM 51 DEG 88-90 CM 45 DEG 87 CM 3 DEG 93 CM 28 DEG 96 CM 29 DEG 71-74 CM 59 DEG 84-96 CM 85 DEG, N8 TUFF CLAST AT 70 CM,115-140 CM 5Y3/1 CUTTINGS,MINOR N8 ASH MOTTLE IN CHIP AT 127 CM SOUPY 0-30 AND 115- 140 CM,HIGH 30-115 CM PIECE FROM 30-39 CM: SMEARED OUT STREAKS OF 5Y4/1 + 5Y6/1 + 5GY2/1 W/WH PUMICE SPECKS IN UPPER PART--SMEARED IN VERTICAL SENSE FAULT CONTACT AT 33 CM TUFFACEOUS + VITRIC + GLAUC BELOW FAULT TUFF,PUMICE,GLAUC,ASH,CALCAREOUS SS AT 49,70,AND 126 CM 33219000 57 441 A 11 CC 0.0 20.0 586.00 587.50 587.60 MA BRECCIA CONTINUED CUTTINGS OF BRECCIA UNIT SOUPY 33219000 57 441 A 12 1 24.0 150.0 605.00 605.24 606.50 MA CLAYSTONE 5G2/1-GRN BLK,5G3/1-GRN BLK 24-60 CM SLIGHTLY GRADED SAND WASH--CLAYEY SILT,REST IS CLAYST DRILL CUTTINGS THROUGHOUT SS AT 36 + 126* 57 441 A 12 2 0.0 60.0 605.00 606.50 607.10 MA CLAYSTONE 5G3/1,5Y5/1-LT OL GRY 5G3/1 CUTTINGS THROUGHOUT W/SOME 5Y5/1 CHIPS MIXED IN SOUPY 23-28 CM PIECE OF 5Y5/1--PROBABLY ORIGINAL LITH BUT NOT THE DOMINANT ONE OF THE CUTTINGS NUMEROUS LIGHT VEINS (NON-CALC) IN PREFERRED DIRECTION NO OFFSET NOTED,VEINS SOMEWHAT BRANCHING SS AT 26 CM* 57 441 A 12 CC 0.0 20.0 605.00 607.20 607.30 MA CLAYSTONE CUTTINGS SOUPY,CUTTINGS 33233000.3450.3651 57 441 A 13 1 32.0 132.0 624.00 624.32 625.32 MA CLAYSTONE 5G2/1-GRN BLK MOSTLY DRILL CUTTINGS, 74-81 CM FISSILE CLAYSTONE--BREAKS EASILY ALONG PARTINGS ALL FRACTURE SURFACES (OF SEVERAL ORIENTATIONS) HAVE SLICKENSIDES OR GROOVED POLISHED APPEARING SURFACES,115-122 CM FRACTURES DIPPING 65 DEG CLOSELY SPACED PARTINGS SOUPY,DRILL CUTTINGS 0-32 CM VOID,SS AT 77 CM* 57 441 A 13 CC 0.0 10.0 624.00 625.42 625.42 MA CLAYSTONE 5Y2/1-GRN GRY BLK CUTTINGS SOUPY 33233000.3450 57 441 A 14 1 0.0 150.0 643.00 643.00 644.50 GW SILTY CLAYSTONE 5Y4/1,N3,N4,N5,-BLK 5Y4/1 SLTY CLAYST,FEW STRUCTURES VISIBLE,PROBABLE APPARENT DIP <40 DEG,5-50 CM MAINLY CUTTINGS,50-55 CM PARALLEL FRACTURE W/ALPHA=25 DEG MAX,55-85 CM CUTTINGS, 85-105 CM FEW MOTTLES (SMALL) V FINE N4-N5 LAMINS. 91-95 (RT DOWNTO LEFT) SHOWING AN APPARENT DIP OF <40 DEG,105-136 CM CUTTINGS OF THE SOS,136-150 CM PROBABLE DEWATERING STRUCTURES (BLK 1 MM LG STRKS) V FINE LAMINATIONS SHOWING A <42 DEG BEDDING (DIP BLOCK ROTATED OF? 90 CM) SLI TO MOD 50-55 + 85- 105 + 136-150 CM,REST SOUPY,STRONGLY DISTURBED BY DRLG (OVERALL) 0-5 CM PEBBLE OF N3 SILT-SIZED SDST APPROX 3 CM DIA,COARSELY ROUNDED (DRLG)* 57 441 A 14 2 0.0 12.0 643.00 644.50 644.62 RGI RECOVERY USED FOR I.W. SAMPLE* 57 441 A 14 CC 0.0 20.0 643.00 644.72 644.82 K SILTY CLAYSTONE DRILLING CUTTING OF THE SOS OF SEC 1,SOME SLICKENSIDES VISIBLE ON SMALL BLOCKS DRILL CUTTINGS,SOUPY* 57 441 A 15 1 0.0 123.0 652.50 652.50 653.73 K CLAYSTONE 5Y3/1,-BLK DRILL CUTTING THROUGHOUT, SOUPY PUMICE PEBBLES (DIA <2-3 MM) AND BLK RND (BASALT? GRAYWACKES?) PEBBLES SCATTERED THROUGHOUT PUMICE,BASALT?,GRAYWACKE? 33233000.3450.3311 57 441 A 15 CC 0.0 20.0 652.50 653.90 654.00 K CLAYSTONE SOS SEC 1 (Q.V.) 33233000.3450.3311