leg site hole core section top interval depth(cm) top of core depth(cm) top of section(m) sample midpoint depth(m) describer rock name piece numbers texture data structure data alteration data other information data vesicle data phenocryst data groundmass mineral data replacement mineral data comments unknown code 84 567 A 16 1 0.0 334.00 334.00 335.50 OGAWA, Y. SERPENTINITE PCE NO PIECE NUMBERS ASSIGNED ORIGINAL CATACLASTIC STRUCTURE DEFORMED BY DRILLING, UPWARD FLOW MADE BY CORING, SECONDARY FRACTURES FILLED BY MINERALS, APPARENT NORMAL FAULT AT 145-148CM WITH 8MM SEPARATION MAY BE MADE BY CORING EXT COLOR IS PALE BLUE-GREEN(5BG 7/2) MOTTLED WITH PALE BLUE(5PB 7/2), ONLY ONE NON-BRECCIATED MOD ALTERED SAMPLE AT 19-30CM, DRILLING DISTURBANCES, UPWARD FLOW COMPOSED OF GREENISH BLACK BRECCIA(5G 2/1) 84 567 A 16 2 0.0 334.00 335.50 336.21 OGAWA, Y. SERPENTINITESAME LITHOLOGY AS CORE 16 SEC 1 PCE NO PIECE NUMBERS ASSIGNED ORIGINAL CATACLASTIC STRUCTURE DEFORMED BY DRILLING, UPWARD FLOW MADE BY CORING, OPEN CRACKS AT 46-51CM AT WELL KNOWN FAULT ZONE CONTACT EXT COLOR IS PALE BLUE SURROUNDING GREENISH BLACK (5G 2/1) PHACOIDAL BRECCINGS OF HARDER SERP (5-15MM LONG), DRILLING DISTURBANCES 84 567 A 16 CC 0.0 334.00 336.31 336.33 OGAWA, Y. SERPENTINITE PCE NO PIECE NUMBERS ASSIGNED BRECCIATED, VEINS, CARBONATE CRYSTAL AGGREGATES, 55-DEGREE FOLIATION MAY BE ORIGINAL ORIENTATION OF SHEAR ZONE 84 567 A 17 1 0.0 342.80 342.80 344.30 OGAWA, Y. SERPENTINITESERPENTINITIC MUD PCE NO PIECE NUMBERS ASSIGNED SMALL PEBBLES AND BRECCIA ALONG CORE LINER AT 100-120CM, BRECCIA OF SERP AT 0-50CM, VOLCANIC GLASS IN MUD COLOR IS DUSKY GREEN(5G 3/2)-DUSKY BLUE(5PB 3/2) TO BLACK(N 5), INTERVALS 50-104CM AND 140-150CM ARE BLACK MUD WITH PYRITE AND VOLCANIC GLASS, YELLOW MUDSTONE PEBBLES OF DIAMETER 3MM AT 130CM BUT IT IS NOT KNOWN IF THIS LAYER IS SEDIMENTARY, DRILLING DISTURBANCE, SMEAR SLIDE SHOWS MUDDY MATERIALS ARE MADE ONLY OF SERP & RELATED MINS & ARE EITHER ROUNDED OR FLAKY, NO SEDIMENTARY FEATURES SEEN, HIGHLY SHEARED & PULVERIZED PYRITE 84 567 A 17 2 0.0 342.80 344.30 345.70 OGAWA, Y. SERPENTINITESERPENTINITIC MUD PCE NO PIECE NUMBERS ASSIGNED MUD CONTAINS VOLCANIC GLASS WEAKLY DEVELOPED (GENTLY DIPPING) FOLIATION AT 8CM 0-65CM IS VERY DARK TO BLACK(N 5) MUDDY SERP, 65-140CM IS DUSKY BLUE(5PB 3/4) MUDDY SERP WITH PHACOIDAL BRECCIA OF GREENISH BLACK(5G 2/1) HARD SERP, ORIGINAL SHEAR ZONE EXPERIENCED DRILLING DISTURBANCE 84 567 A 17 3 0.0 342.80 345.80 346.47 OGAWA, Y. SERPENTINITESERPENTINITIC MUD PCE NO PIECE NUMBERS ASSIGNED FLOW STRUCTURE, SMALL WHITE BRECCIAS (5MM) OF LAYERS OF CARB SPORADICALLY INCLUDED SHEARS DUSKY BLUE(5PB 3/2) MUDDY SERP CONTAINS DUSKY GREEN (5G 3/2) TO DUSKY BLUE(5PB 3/2) SERP BRECCIAS (5-20MM) 84 567 A 17 CC 0.0 342.80 346.55 346.51 OGAWA, Y. SERPENTINITESERPENTINITIC MUDSAME LITHOLOGY AS CORE 17 SEC 3 84 567 A 18 1 9.0 351.70 351.79 352.00 BALTUCK, M. SEDIMENT (MUD) MEDIUM DARK GRAY(N 4/5), SOUPY GRITTY MUD 84 567 A 18 1 30.0 351.70 352.00 352.64 BALTUCK, M. SEDIMENT (MUDSTONE) SERPENTINITE & MUDSTONE CLASTS DRILLING BRECCIA, PALE BLUE-GREEN(5BG 7/2) MUDSTONE CLASTS, ANGULAR TO SUBROUNDED GRAYISH OLIVE-GREEN (5GY 3/2) CLASTS, DARK GRAY(N 3) CLASTS 84 567 A 18 1 94.0 351.70 352.64 352.71 BALTUCK, M. SERPENTINITE ALTERED, PALE BLUE(5B 6/2) COLOR 84 567 A 18 CC 0.0 351.70 352.82 352.89 BALTUCK, M. SERPENTINITE PCE NO PIECE NUMBERS ASSIGNED, INTERVALS 0-4 & 8-13 ALTERED MARBLED LIGHT & DARK SWIRLS OF MEDIUM BLUISH GRAY(5B 5/1) & DUSKY BLUE(5PB 4/2) 84 567 A 18 CC 0.0 351.70 352.82 352.89 BALTUCK, M. SEDIMENT (MIXED LITHOLOGIES)NANNO OOZESANDSTONEMUDSTONE PCE NO PIECE NUMBERS ASSIGNED, INTERVALS 4-10 & 13-17 ANGULAR CLASTS OF MUDSTONE AND NANNO OOZE OLIVE GRAY MUD(5Y 3/2) AT INTERVALS 4-8 & 13-17, OOZE IS LIGHT GRAY(N 8), SANDSTONE IS BROWNISH BLACK (5YR 4/1), ANGULAR UNEVEN BOUNDARIES BETWEEN PCES, DETAILED SKETCH ON SHIPBOARD FORM 84 567 A 20 1 0.0 376.40 376.40 377.41 OGAWA, Y. SEDIMENT (MUDSTONE)DOLERITEBASALTPERIDOTITESERPENTINITE DRILLING CLASTS OF DOLERITE AND BASALT CONTAINS OLIVE GRAY MUD(5Y 3/2) & SERP & GRAYISH GREEN LIMESTONE(10GY 4/4) & BLACK PERIDOTITE(N 1) & LT GREEN MUD(5G 6/6) 84 567 A 20 1 101.0 376.40 377.41 377.90 OGAWA, Y. METAGABBROMETABASALTMETADOLERITE PCE 1 (102-107), 2 (108-112), 3 (113-116), 4 (118-122), 5 (124-127), 6 (129-132), 7 (134-137), 8 (139-142), 9 (143-150) CATACLASTIC TEXTURE DEVELOPED IN PCES 1&2&4-6&9 EPIDOTE VEIN IN PCES 2&3 EXT NO MATRIX SEEN BUT COULD BE TO BLUE-GREEN MUD OR BASEMENT, PCE 7 IS METABASALT, PCE 8 IS METADOLERITE OR METABASALT EPIDOTE comments : FILLS VEINS IN PCES 2&3 84 567 A 21 CC 0.0 394.10 394.20 394.23 OGAWA, Y. GABBRO DRILLING CLASTS 84 567 A 21 CC 13.0 394.10 394.23 394.38 OGAWA, Y. METAGABBROMETADOLERITE PCE 1 (13-19), 2 (20-22), 3 (25-28) CATACLASTIC TEXTURE IN PCES 1&2 PCES 1&2 ARE METAGABBRO, PCE 3 IS METADOLERITE 84 567 A 22 CC 0.0 402.90 403.00 403.14 OGAWA, Y. SERPENTINITE PCE NO PIECE NUMBERS ASSIGNED EXT COLOR IS GRAYISH BLUE(5PB 5/6), ENTIRELY CRUSHED AND PULVERIZED TO A MUD, SERP INCLUDES SERPENTINE & SPINEL & OP.MINS, SEVERAL PCES INCLUDED IN PLASTIC BAG IN CORE SAMPLE (DIAMETER PCES <1.5CM) SPINEL OP.MINS SERP HARZBURGITE comments : ID UNCERTAIN OF HARZBURGITE 84 567 A 23 1 0.0 411.80 411.80 412.24 BALTUCK, M. SERPENTINITIC MUDMICROGABBRODIABASE PCE NO PIECE NUMBERS ASSIGNED DIABASE CLASTS IN INTERVALS 0-7 & 40-44 OF SIZE <1CM, MICROGABBRO CLASTS IN INTERVALS 7-22 & 37-42 VEINS FILLED BY A SOFT WHITE MINERAL IN BRECCIA FIRMER BRECCIA IN INTERVALS 0-22 & 37-44 (5GY 6/1), PCES SAND-SIZED TO 4CM DIAMETER, COLOR IS BLUISH GRAY(5B 5/1) PYRITE comments : XTLS IN BRECCIA 84 567 A 23 CC 0.0 411.80 412.31 412.32 BALTUCK, M. SERPENTINITIC MUD SAND-SIZED DIABASE CLASTS OF BLACK COLOR(N 5) COLOR OF MUD IS BLUISH GRAY(5B 6/1) 84 567 A 25 1 0.0 429.60 429.60 429.84 OGAWA, Y. ALTERED GABBRO PCE 1 (4-10), 2 (12-24) VEINS IN PCE 1 FILLED BY PALE GREENISH YELLOW MIN MOD PCE 2 PULVERIZED BY DRILLING, PCE 1 GREENISH GRAY COLOR(5G 5/2) 84 567 A 25 1 26.0 429.60 429.86 431.02 OGAWA, Y. BASALT PCE 3 (27-32), 4 (33-45), 5 (47-52), 5A (54-60), 6B (61-64), 7 (69-73), 8 (77-82), 9 (87-90), 10 (93-98), 11 (101-104), 12 (106-110), 13 (112-118), 14 (120-125), 15 (127-132), 16 (135-141) BASALT MIXED WITH HYALOCLASTITE TO FORM LENTICULAR AND FLOW STRUCTURE IN PCE 6A, POSSIBLE PILLOW MARGINS BLACK CLASTS IN PCE 4, CALCITE VEINS THROUGHOUT, BASALT COVERED BY FINE BASALTIC "SEDIMENTS" OF HYALOCLASTITE, SHEARED TO FORM CM-SIZED PHACOIDAL LENSES IN PCES 6B-16, LAYERS OF VOLCANIC "SEDIMENTS" IN PCE 4 OF BLUE & RED & GRAY COLORS, SED STRUCTURE MOD VEINS AND LAYERS BASALT COLOR IS VERY DUSKY RED(2.5YR 2.5/2) TO DARK REDDISH BROWN(2.5YR 2.5/4), DETAILED SKETCH OF PCES 4 & 15 ON SHIPBOARD FORM CALCITE comments : FILLS VEINS 84 567 A 25 2 0.0 429.60 431.10 431.39 BOURGOIS, J. ALTERED BASALT PCE 1 (2-11), 2 (14-19), 3 (22-29) VERY FINE-GRAINED EXT COLOR IS DUSKY RED(5R 3/4) TO VERY DARK RED(5R 2/6) AND VERY DUSKY RED(10R 2/2), VEINS OF SAME MIN IN PCES 12-14 OF SAME CORE SEC 84 567 A 25 2 30.0 429.60 431.40 432.60 BOURGOIS, J. ALTERED BASALT PCE 4 (30-37), 5 (38-45), 6 (46-51), 7 (53-60), 8 (61-69), 9 (72-79), 10 (82-87), 11 (88-95), 11A (95-105), 12 (107-111), 12A (112-120), 13 (123-129), 13A (123-128), 14 (132-138), 15 (143-147) VERY FINE-GRAINED VEINS IN PCES 12-14 FILLED WITH SAME RED MIN AS PCES 1-3 OF SAME CORE SEC, VEINS & FACIES GIVE EVIDENCE FOR TECTONIC FRACTURES, VERY FRACTIONATED, FIRST GENERATION NORMAL AND SECOND GENERATION REVERSE FAULTING IN PCE 12A, CRACKS FILLED DURING SECOND FAULTING PHASE MOD BASALT COLOR IS GREENISH BLACK(5GY 2/1), DETAILED SKETCH OF PCE 12A ON SHIPBOARD FORM THROUGHOUTCALCITE OLIVINE 0.5TO 2-3 comments : ERODED PLAG 84 567 A 25 3 0.0 429.60 432.60 432.80 BOURGOIS, J. ALTERED BASALTSAME LITHOLOGY AS CORE 25 SEC 2 PCE 1 (2-8), 2 (11-19) comments: LOW-TEMP METAMORPHISM comments : VESICLES FILLED WITH A PALE BLUE-GREEN MIN (5BG 7/2) AT 6-14CM 84 567 A 26 1 0.0 438.50 438.50 438.72 OGAWA, Y. BASALT PCE 1 (2-9), 2 (12-15), 3 (18-21) CALCITE VEINS, PCE 1 HAS SAME CURVE AS PILLOW BASALT & REDDISH BASALTIC "SHALE" RIM EXT COLOR OF CORE IS DUSKY GREEN(5G 3/2), COLOR OF RIM IS VERY DUSKY RED(10R 2/2), DETAILED SKETCH OF PCES 1&3 ON SHIPBOARD FORM CALCITE comments : FILLS VEINS 84 567 A 26 1 22.0 438.50 438.72 439.65 OGAWA, Y. GABBRO PCE 4 (24-28), 5 (30-36), 6 (38-44), 7 (46-53), 8 (57-65), 9 (68-72), 10 (75-81), 11 (83-87), 12 (90-93), 13 (96-99), 14 (101-104), 15 (106-114) NO FOLIATION NOR DISTINCT DEFORMATION CONSIDERABLE METAMORPHISM, COLOR IS GREEN(10G 4/2) 84 567 A 27 1 34.0 445.80 446.14 447.20 BALTUCK, M. MICROGABBRODRILLING BRECCIA PCE NO PIECE NUMBERS ASSIGNED, INTERVALS 34-95 & 113-131 GRADED DRILLING BRECCIA, COLOR IS OLIVE BLACK (5Y 2/1) 84 567 A 27 1 34.0 445.80 446.14 447.20 BALTUCK, M. METAGABBROGREENSCHIST FACIES PCE 1 (98-101), 2A (105-110), 2B (107-111), 3 (133-138) MEDIUM-GRAINED, OPHITIC CALCITE VEINS COMPRISE 2% OF ROCK EXT PCES 1-2B ARE DARK-GREENISH GRAY(5GY 4/1), PCE 3 IS GREENISH BLACK(5G 2/1) PLAG 60 comments : REPLACED BY ACTINOLITE & CLINOZOITE & CHLORITE | COMBINE 10 comments : INCLUDES OP.MINS & CHROMITE | COMBINE TO 30 comments : INCLUDES CPX & AMPHIBOLITE, BROWN XTLS CHLORITE PLAG | CLZOIS PLAG | ACTINOL PLAG | AMPH | CALCITE comments : IN VEINS 84 567 A 27 1 140.0 445.80 447.20 447.30 BALTUCK, M. SERPENTINITIC MUD CLASTS OF METAGABBRO & SERP MEDIUM-BLUISH GRAY(5B 5/1) 84 567 A 27 CC 0.0 445.80 447.40 447.47 BOURGOIS, J. SERPENTINITIC MUD NO CLASTS MEDIUM-BLUISH GRAY(5B 5/1) 84 567 A 28 1 44.0 465.20 465.64 466.70 BOURGOIS, J. SERPENTINIZED PERIDOTITE PCE 1 (44-53), 2 (64-67), 3 (90-97), 4 (116-123), 5A (126-132), 5 (129-133), 6 (146-158) CONJUGATE SET OF EN ECHELON TENSION GASHES IN PCE 1 MOD COLOR IS GREENISH BLACK(5B 2/1) SERP PERIDOTITE 84 567 A 28 1 44.0 465.20 465.64 466.70 BOURGOIS, J. SERPENTINITIC MUD PCE NO PIECE NUMBERS ASSIGNED, INTERVALS 55-62 & 70-90 & 97-115 & 136-145 MEDIUM-BLUE COLOR(5B 5/1) 84 567 A 29 1 0.0 484.60 484.60 486.10 OGAWA, Y. DRILLING BRECCIAPERIDOTITEGABBRODOLERITEBASALT PCE NO PIECE NUMBERS ASSIGNED BROWN CLASTS OF BASALT TALC VEINS COLOR IS DUSKY BLUE-GREEN(5BG 3/2), LARGER PCES SEPARATED & ORIENTED IN SEC 2, BRECCIA DIAMETER RANGES FROM 1MM TO 2CM, CONSISTS OF 71% PERIDOTITE& 14% GABBRO& 7% DOLERITE& 7% BASALT COMBINE 1 comments : CONTAINS TALC & PECTOLITE?, WHITE MINS 84 567 A 29 2 8.0 484.60 486.18 486.22 BALTUCK, M. MICROGABBRO PCE 2 (8-12) CARB VEINS PLAG >50 comments : MAY BE LABRADORITE | PYROXENE 30 comments : TOTAL PERCENTAGE INCLUDES REPLACEMENT MINS COMBINE 10 comments : CONTAINS ACTINOLITE & CHLORITE | OP.MINS 5 comments : MAY BE SPINEL OR CHROMITE OR MAGNETITE | CARB 3 comments : IN VEINS 84 567 A 29 2 3.0 484.60 486.13 487.55 BALTUCK, M. SERPENTINITE PCE 1 (3-7), 3 (14-19), 4 (21-27), 5 (28-33), 6 (35-40), 7 (42-45), 8 (47-52), 9 (53-57), 10 (57-62), 11 (63-66), 12 (69-73), 13 (76-85), 14 (89-92), 15 (93-99), 16 (100-104), 17 (107-111), 18 (115-122), 19 (123-132), 20 (135-138), 21 (140-145) PCES 7 & 20 ARE SERP MUD CONTAINING SERP CLASTS, PCES 3 & 8 ARE FINE-GRAINED, PCE 10 IS FINE & COARSE-GRAINED SHEARING IN PCES 1&3&10&19, VEINS OF TALC OR CHRYSOTILE IN PCE 3, VEINS OF SERP IN PCES 1 & 4-6 & 9-11 & 21 MOD PCES 1-6 & 9-19 & 21 | EXT PCE 8 | ALMOST COMPLETELY PCES 7&20 ARE SERPENTINITIC MUD PCE 3 IS DARK GREEN, PCE 7 IS DUSKY BLUE(5PB 3/2), PCE 8 IS GRAYISH BLACK(N 2), PCE 20 IS PALE BLUE (5PB 7/2), PCES 1 & 4-6 & 9-11 & 21 ARE BLACK(N 1) PYROXENE comments : PCES 1 & 4-6 & 9-11 & 21 CONTAIN COARSE DARK GRAINOF PYX TALC comments : ID UNCERTAIN, MAY BE CHRYSOTILE, IN VEINS 84 567 A 29 2 145.0 484.60 487.55 487.60 BALTUCK, M. ALTERED BASALT PCE 22 (145-150) VEINS SHOWING EXTENSION AND FILLED WITH CALCITE MOD BLACK FE-MN OXIDE BROWN(5YR 3/4), DETAILED SKETCH ON SHIPBOARD FORM SERP CALCITE comments : IN VEINS | FE-MN OX | SERP comments : IN VESICLES 84 567 A 29 CC 0.0 484.60 487.70 487.93 BALTUCK, M. DRILL BRECCIASERPENTINITEGABBROALTERED BASALT PCE NO PIECE NUMBERS ASSIGNED SERP-GABBRO-ALTERED BASALT CLASTS MOD GRAIN SIZE 0.5-3CM