84567A 16 1 01500 334.00 334.00 335.50 OGA 12 1 L SERPENTINITE; 2 N PCE NO PIECE NUMBERS ASSIGNED; 3 S ORIGINAL CATACLASTIC STRUCTURE DEFORMED BY DRILLING, 4 S UPWARD FLOW MADE BY CORING, SECONDARY FRACTURES 5 S FILLED BY MINERALS, APPARENT NORMAL FAULT AT 6 S 145-148CM WITH 8MM SEPARATION MAY BE MADE BY CORING; 7 A EXT; 8 O COLOR IS PALE BLUE-GREEN(5BG 7/2) MOTTLED WITH PALE 9 O BLUE(5PB 7/2), ONLY ONE NON-BRECCIATED MOD ALTERED 10 O SAMPLE AT 19-30CM, DRILLING DISTURBANCES, UPWARD 11 O FLOW COMPOSED OF GREENISH BLACK BRECCIA(5G 2/1); 12 84567A 16 2 0 710 334.00 335.50 336.21 OGA 11 1 L SERPENTINITE; 2 L SAME LITHOLOGY AS CORE 16 SEC 1; 3 N PCE NO PIECE NUMBERS ASSIGNED; 4 S ORIGINAL CATACLASTIC STRUCTURE DEFORMED BY DRILLING, 5 S UPWARD FLOW MADE BY CORING, OPEN CRACKS AT 46-51CM 6 S AT WELL KNOWN FAULT ZONE CONTACT; 7 A EXT; 8 O COLOR IS PALE BLUE SURROUNDING GREENISH BLACK 9 O (5G 2/1) PHACOIDAL BRECCINGS OF HARDER SERP 10 O (5-15MM LONG), DRILLING DISTURBANCES; 11 84567A 16CC 0 120 334.00 336.31 336.33 OGA 6 1 L SERPENTINITE; 2 N PCE NO PIECE NUMBERS ASSIGNED; 3 S BRECCIATED, VEINS, CARBONATE CRYSTAL AGGREGATES, 4 S 55-DEGREE FOLIATION MAY BE ORIGINAL ORIENTATION OF 5 S SHEAR ZONE; 6 84567A 17 1 01500 342.80 342.80 344.30 OGA 17 1 L SERPENTINITE; 2 L SERPENTINITIC MUD; 3 N PCE NO PIECE NUMBERS ASSIGNED; 4 T SMALL PEBBLES AND BRECCIA ALONG CORE LINER AT 5 T 100-120CM, BRECCIA OF SERP AT 0-50CM, VOLCANIC GLASS 6 T IN MUD; 7 O COLOR IS DUSKY GREEN(5G 3/2)-DUSKY BLUE(5PB 3/2) TO 8 O BLACK(N 5), INTERVALS 50-104CM AND 140-150CM ARE 9 O BLACK MUD WITH PYRITE AND VOLCANIC GLASS, YELLOW 10 O MUDSTONE PEBBLES OF DIAMETER 3MM AT 130CM BUT IT IS 11 O NOT KNOWN IF THIS LAYER IS SEDIMENTARY, DRILLING 12 O DISTURBANCE, SMEAR SLIDE SHOWS MUDDY MATERIALS ARE 13 O MADE ONLY OF SERP & RELATED MINS & ARE EITHER 14 O ROUNDED OR FLAKY, NO SEDIMENTARY FEATURES SEEN, 15 O HIGHLY SHEARED & PULVERIZED; 16 R PYRITE 17 84567A 17 2 01400 342.80 344.30 345.70 OGA 11 1 L SERPENTINITE; 2 L SERPENTINITIC MUD; 3 N PCE NO PIECE NUMBERS ASSIGNED; 4 T MUD CONTAINS VOLCANIC GLASS; 5 S WEAKLY DEVELOPED (GENTLY DIPPING) FOLIATION AT 8CM; 6 O 0-65CM IS VERY DARK TO BLACK(N 5) MUDDY SERP, 7 O 65-140CM IS DUSKY BLUE(5PB 3/4) MUDDY SERP WITH 8 O PHACOIDAL BRECCIA OF GREENISH BLACK(5G 2/1) HARD 9 O SERP, ORIGINAL SHEAR ZONE EXPERIENCED DRILLING 10 O DISTURBANCE; 11 84567A 17 3 0 670 342.80 345.80 346.47 OGA 10 1 L SERPENTINITE; 2 L SERPENTINITIC MUD; 3 N PCE NO PIECE NUMBERS ASSIGNED; 4 T FLOW STRUCTURE, SMALL WHITE BRECCIAS (5MM) OF LAYERS 5 T OF CARB SPORADICALLY INCLUDED; 6 S SHEARS; 7 O DUSKY BLUE(5PB 3/2) MUDDY SERP CONTAINS DUSKY GREEN 8 O (5G 3/2) TO DUSKY BLUE(5PB 3/2) SERP BRECCIAS 9 O (5-20MM); 10 84567A 17CC 0 60 342.80 346.55 346.51 OGA 4 1 L SERPENTINITE; 2 L SERPENTINITIC MUD; 3 L SAME LITHOLOGY AS CORE 17 SEC 3; 4 84567A 18 1 90 300 351.70 351.79 352.00 BAL 3 1 L SEDIMENT (MUD); 2 O MEDIUM DARK GRAY(N 4/5), SOUPY GRITTY MUD; 3 84567A 18 1 300 940 351.70 352.00 352.64 BAL 6 1 L SEDIMENT (MUDSTONE); 2 T SERPENTINITE & MUDSTONE CLASTS; 3 O DRILLING BRECCIA, PALE BLUE-GREEN(5BG 7/2) MUDSTONE 4 O CLASTS, ANGULAR TO SUBROUNDED GRAYISH OLIVE-GREEN 5 O (5GY 3/2) CLASTS, DARK GRAY(N 3) CLASTS; 6 84567A 18 1 9401010 351.70 352.64 352.71 BAL 3 1 L SERPENTINITE; 2 O ALTERED, PALE BLUE(5B 6/2) COLOR; 3 84567A 18CC 0 170 351.70 352.82 352.89 BAL 5 1 L SERPENTINITE; 2 N PCE NO PIECE NUMBERS ASSIGNED, INTERVALS 0-4 & 8-13; 3 O ALTERED MARBLED LIGHT & DARK SWIRLS OF MEDIUM BLUISH 4 O GRAY(5B 5/1) & DUSKY BLUE(5PB 4/2); 5 84567A 18CC 0 170 351.70 352.82 352.89 BAL 12 1 L SEDIMENT (MIXED LITHOLOGIES); 2 L NANNO OOZE; 3 L SANDSTONE; 4 L MUDSTONE; 5 N PCE NO PIECE NUMBERS ASSIGNED, INTERVALS 4-10 & 6 N 13-17; 7 T ANGULAR CLASTS OF MUDSTONE AND NANNO OOZE; 8 O OLIVE GRAY MUD(5Y 3/2) AT INTERVALS 4-8 & 13-17, 9 O OOZE IS LIGHT GRAY(N 8), SANDSTONE IS BROWNISH BLACK 10 O (5YR 4/1), ANGULAR UNEVEN BOUNDARIES BETWEEN PCES, 11 O DETAILED SKETCH ON SHIPBOARD FORM; 12 84567A 20 1 01010 376.40 376.40 377.41 OGA 10 1 L SEDIMENT (MUDSTONE); 2 L DOLERITE; 3 L BASALT; 4 L PERIDOTITE; 5 L SERPENTINITE; 6 T DRILLING CLASTS OF DOLERITE AND BASALT; 7 O CONTAINS OLIVE GRAY MUD(5Y 3/2) & SERP & GRAYISH 8 O GREEN LIMESTONE(10GY 4/4) & BLACK PERIDOTITE(N 1) & 9 O LT GREEN MUD(5G 6/6); 10 84567A 20 110101500 376.40 377.41 377.90 OGA 15 1 L METAGABBRO; 2 L METABASALT; 3 L METADOLERITE; 4 N PCE 1 (102-107), 2 (108-112), 3 (113-116), 5 N 4 (118-122), 5 (124-127), 6 (129-132), 7 (134-137), 6 N 8 (139-142), 9 (143-150); 7 T CATACLASTIC TEXTURE DEVELOPED IN PCES 1&2&4-6&9; 8 S EPIDOTE VEIN IN PCES 2&3; 9 A EXT; 10 O NO MATRIX SEEN BUT COULD BE TO BLUE-GREEN MUD OR 11 O BASEMENT, PCE 7 IS METABASALT, PCE 8 IS METADOLERITE 12 O OR METABASALT; 13 R EPIDOTE 14 R % FILLS VEINS IN PCES 2&3; 15 84567A 21CC 0 130 394.10 394.20 394.23 OGA 2 1 L GABBRO DRILLING CLASTS; 2 84567A 21CC 130 280 394.10 394.23 394.38 OGA 6 1 L METAGABBRO; 2 L METADOLERITE; 3 N PCE 1 (13-19), 2 (20-22), 3 (25-28); 4 T CATACLASTIC TEXTURE IN PCES 1&2; 5 O PCES 1&2 ARE METAGABBRO, PCE 3 IS METADOLERITE; 6 84567A 22CC 0 240 402.90 403.00 403.14 OGA 12 1 L SERPENTINITE; 2 N PCE NO PIECE NUMBERS ASSIGNED; 3 A EXT; 4 O COLOR IS GRAYISH BLUE(5PB 5/6), ENTIRELY CRUSHED AND 5 O PULVERIZED TO A MUD, SERP INCLUDES SERPENTINE & 6 O SPINEL & OP.MINS, SEVERAL PCES INCLUDED IN PLASTIC 7 O BAG IN CORE SAMPLE (DIAMETER PCES <1.5CM); 8 P SPINEL 9 G OP.MINS 10 R SERP HARZBURGITE 11 R % ID UNCERTAIN OF HARZBURGITE; 12 84567A 23 1 0 440 411.80 411.80 412.24 BAL 13 1 L SERPENTINITIC MUD; 2 L MICROGABBRO; 3 L DIABASE; 4 N PCE NO PIECE NUMBERS ASSIGNED; 5 T DIABASE CLASTS IN INTERVALS 0-7 & 40-44 OF SIZE 6 T <1CM, MICROGABBRO CLASTS IN INTERVALS 7-22 & 37-42; 7 S VEINS FILLED BY A SOFT WHITE MINERAL IN BRECCIA; 8 O FIRMER BRECCIA IN INTERVALS 0-22 & 37-44 (5GY 6/1), 9 O PCES SAND-SIZED TO 4CM DIAMETER, COLOR IS BLUISH 10 O GRAY(5B 5/1); 11 R PYRITE 12 R % XTLS IN BRECCIA; 13 84567A 23CC 0 110 411.80 412.31 412.32 BAL 4 1 L SERPENTINITIC MUD; 2 T SAND-SIZED DIABASE CLASTS OF BLACK COLOR(N 5); 3 O COLOR OF MUD IS BLUISH GRAY(5B 6/1); 4 84567A 25 1 0 240 429.60 429.60 429.84 OGA 7 1 L ALTERED GABBRO; 2 N PCE 1 (4-10), 2 (12-24); 3 S VEINS IN PCE 1 FILLED BY PALE GREENISH YELLOW MIN; 4 A MOD; 5 O PCE 2 PULVERIZED BY DRILLING, PCE 1 GREENISH GRAY 6 O COLOR(5G 5/2); 7 84567A 25 1 2601420 429.60 429.86 431.02 OGA 22 1 L BASALT; 2 N PCE 3 (27-32), 4 (33-45), 5 (47-52), 5A (54-60), 3 N 6B (61-64), 7 (69-73), 8 (77-82), 9 (87-90), 4 N 10 (93-98), 11 (101-104), 12 (106-110), 5 N 13 (112-118), 14 (120-125), 15 (127-132), 6 N 16 (135-141); 7 T BASALT MIXED WITH HYALOCLASTITE TO FORM LENTICULAR 8 T AND FLOW STRUCTURE IN PCE 6A, POSSIBLE PILLOW 9 T MARGINS; 10 S BLACK CLASTS IN PCE 4, CALCITE VEINS THROUGHOUT, 11 S BASALT COVERED BY FINE BASALTIC "SEDIMENTS" OF 12 S HYALOCLASTITE, SHEARED TO FORM CM-SIZED PHACOIDAL 13 S LENSES IN PCES 6B-16, LAYERS OF VOLCANIC "SEDIMENTS" 14 S IN PCE 4 OF BLUE & RED & GRAY COLORS, SED STRUCTURE; 15 A MOD 16 A % VEINS AND LAYERS; 17 O BASALT COLOR IS VERY DUSKY RED(2.5YR 2.5/2) TO DARK 18 O REDDISH BROWN(2.5YR 2.5/4), DETAILED SKETCH OF PCES 19 O 4 & 15 ON SHIPBOARD FORM; 20 R CALCITE 21 R % FILLS VEINS; 22 84567A 25 2 0 290 429.60 431.10 431.39 BOU 8 1 L ALTERED BASALT; 2 N PCE 1 (2-11), 2 (14-19), 3 (22-29); 3 T VERY FINE-GRAINED; 4 A EXT; 5 O COLOR IS DUSKY RED(5R 3/4) TO VERY DARK RED(5R 2/6) 6 O AND VERY DUSKY RED(10R 2/2), VEINS OF SAME MIN IN 7 O PCES 12-14 OF SAME CORE SEC; 8 84567A 25 2 3001500 429.60 431.40 432.60 BOU 21 1 L ALTERED BASALT; 2 N PCE 4 (30-37), 5 (38-45), 6 (46-51), 7 (53-60), 3 N 8 (61-69), 9 (72-79), 10 (82-87), 11 (88-95), 4 N 11A (95-105), 12 (107-111), 12A (112-120), 5 N 13 (123-129), 13A (123-128), 14 (132-138), 6 N 15 (143-147); 7 T VERY FINE-GRAINED; 8 S VEINS IN PCES 12-14 FILLED WITH SAME RED MIN AS PCES 9 S 1-3 OF SAME CORE SEC, VEINS & FACIES GIVE EVIDENCE 10 S FOR TECTONIC FRACTURES, VERY FRACTIONATED, FIRST 11 S GENERATION NORMAL AND SECOND GENERATION REVERSE 12 S FAULTING IN PCE 12A, CRACKS FILLED DURING SECOND 13 S FAULTING PHASE; 14 A MOD; 15 O BASALT COLOR IS GREENISH BLACK(5GY 2/1), DETAILED 16 O SKETCH OF PCE 12A ON SHIPBOARD FORM; 17 V THROUGHOUTCALCITE 18 P OLIVINE 0.5TO 2-3 19 P % ERODED; 20 G PLAG 21 84567A 25 3 0 200 429.60 432.60 432.80 BOU 7 1 L ALTERED BASALT; 2 L SAME LITHOLOGY AS CORE 25 SEC 2; 3 N PCE 1 (2-8), 2 (11-19); 4 O % LOW-TEMP METAMORPHISM; 5 V % VESICLES FILLED WITH A PALE BLUE-GREEN MIN 6 V % (5BG 7/2) AT 6-14CM; 7 84567A 26 1 0 220 438.50 438.50 438.72 OGA 11 1 L BASALT; 2 N PCE 1 (2-9), 2 (12-15), 3 (18-21); 3 S CALCITE VEINS, PCE 1 HAS SAME CURVE AS PILLOW BASALT 4 S & REDDISH BASALTIC "SHALE" RIM; 5 A EXT; 6 O COLOR OF CORE IS DUSKY GREEN(5G 3/2), COLOR OF RIM 7 O IS VERY DUSKY RED(10R 2/2), DETAILED SKETCH OF PCES 8 O 1&3 ON SHIPBOARD FORM; 9 R CALCITE 10 R % FILLS VEINS; 11 84567A 26 1 2201150 438.50 438.72 439.65 OGA 7 1 L GABBRO; 2 N PCE 4 (24-28), 5 (30-36), 6 (38-44), 7 (46-53), 3 N 8 (57-65), 9 (68-72), 10 (75-81), 11 (83-87), 4 N 12 (90-93), 13 (96-99), 14 (101-104), 15 (106-114); 5 S NO FOLIATION NOR DISTINCT DEFORMATION; 6 O CONSIDERABLE METAMORPHISM, COLOR IS GREEN(10G 4/2); 7 84567A 27 1 3401400 445.80 446.14 447.20 BAL 7 1 L MICROGABBRO; 2 L DRILLING BRECCIA; 3 N PCE NO PIECE NUMBERS ASSIGNED, INTERVALS 34-95 & 4 N 113-131; 5 O GRADED DRILLING BRECCIA, COLOR IS OLIVE BLACK 6 O (5Y 2/1); 7 84567A 27 1 3401400 445.80 446.14 447.20 BAL 22 1 L METAGABBRO; 2 L GREENSCHIST FACIES; 3 N PCE 1 (98-101), 2A (105-110), 2B (107-111), 4 N 3 (133-138); 5 T MEDIUM-GRAINED, OPHITIC; 6 S CALCITE VEINS COMPRISE 2% OF ROCK; 7 A EXT; 8 O PCES 1-2B ARE DARK-GREENISH GRAY(5GY 4/1), PCE 3 IS 9 O GREENISH BLACK(5G 2/1); 10 G PLAG 60 11 G % REPLACED BY ACTINOLITE & CLINOZOITE & CHLORITE; 12 G COMBINE 10 13 G % INCLUDES OP.MINS & CHROMITE; 14 G COMBINE TO 30 15 G % INCLUDES CPX & AMPHIBOLITE, BROWN XTLS; 16 R CHLORITE PLAG 17 R CLZOIS PLAG 18 R ACTINOL PLAG 19 R AMPH 20 R CALCITE 21 R % IN VEINS; 22 84567A 27 114001500 445.80 447.20 447.30 BAL 4 1 L SERPENTINITIC MUD; 2 T CLASTS OF METAGABBRO & SERP; 3 O MEDIUM-BLUISH GRAY(5B 5/1); 4 84567A 27CC 0 170 445.80 447.40 447.47 BOU 4 1 L SERPENTINITIC MUD; 2 T NO CLASTS; 3 O MEDIUM-BLUISH GRAY(5B 5/1); 4 84567A 28 1 4401500 465.20 465.64 466.70 BOU 8 1 L SERPENTINIZED PERIDOTITE; 2 N PCE 1 (44-53), 2 (64-67), 3 (90-97), 4 (116-123), 3 N 5A (126-132), 5 (129-133), 6 (146-158); 4 S CONJUGATE SET OF EN ECHELON TENSION GASHES IN PCE 1; 5 A MOD; 6 O COLOR IS GREENISH BLACK(5B 2/1); 7 R SERP PERIDOTITE 8 84567A 28 1 4401500 465.20 465.64 466.70 BOU 5 1 L SERPENTINITIC MUD; 2 N PCE NO PIECE NUMBERS ASSIGNED, INTERVALS 55-62 & 3 N 70-90 & 97-115 & 136-145; 4 O MEDIUM-BLUE COLOR(5B 5/1); 5 84567A 29 1 01500 484.60 484.60 486.10 OGA 15 1 L DRILLING BRECCIA; 2 L PERIDOTITE; 3 L GABBRO; 4 L DOLERITE; 5 L BASALT; 6 N PCE NO PIECE NUMBERS ASSIGNED; 7 T BROWN CLASTS OF BASALT; 8 S TALC VEINS; 9 O COLOR IS DUSKY BLUE-GREEN(5BG 3/2), LARGER PCES 10 O SEPARATED & ORIENTED IN SEC 2, BRECCIA DIAMETER 11 O RANGES FROM 1MM TO 2CM, CONSISTS OF 71% PERIDOTITE& 12 O 14% GABBRO& 7% DOLERITE& 7% BASALT; 13 R COMBINE 1 14 R % CONTAINS TALC & PECTOLITE?, WHITE MINS; 15 84567A 29 2 80 120 484.60 486.18 486.22 BAL 14 1 L MICROGABBRO; 2 N PCE 2 (8-12); 3 S CARB VEINS; 4 G PLAG >50 5 G % MAY BE LABRADORITE; 6 G PYROXENE 30 7 G % TOTAL PERCENTAGE INCLUDES REPLACEMENT MINS; 8 R COMBINE 10 9 R % CONTAINS ACTINOLITE & CHLORITE; 10 R OP.MINS 5 11 R % MAY BE SPINEL OR CHROMITE OR MAGNETITE; 12 R CARB 3 13 R % IN VEINS; 14 84567A 29 2 301450 484.60 486.13 487.55 BAL 28 1 L SERPENTINITE; 2 N PCE 1 (3-7), 3 (14-19), 4 (21-27), 5 (28-33), 3 N 6 (35-40), 7 (42-45), 8 (47-52), 9 (53-57), 4 N 10 (57-62), 11 (63-66), 12 (69-73), 13 (76-85), 5 N 14 (89-92), 15 (93-99), 16 (100-104), 17 (107-111), 6 N 18 (115-122), 19 (123-132), 20 (135-138), 7 N 21 (140-145); 8 T PCES 7 & 20 ARE SERP MUD CONTAINING SERP CLASTS, 9 T PCES 3 & 8 ARE FINE-GRAINED, PCE 10 IS FINE & 10 T COARSE-GRAINED; 11 S SHEARING IN PCES 1&3&10&19, VEINS OF TALC OR 12 S CHRYSOTILE IN PCE 3, VEINS OF SERP IN PCES 1 & 4-6 & 13 S 9-11 & 21; 14 A MOD 15 A % PCES 1-6 & 9-19 & 21; 16 A EXT 17 A % PCE 8; 18 A ALMOST COMPLETELY 19 A % PCES 7&20 ARE SERPENTINITIC MUD; 20 O PCE 3 IS DARK GREEN, PCE 7 IS DUSKY BLUE(5PB 3/2), 21 O PCE 8 IS GRAYISH BLACK(N 2), PCE 20 IS PALE BLUE 22 O (5PB 7/2), PCES 1 & 4-6 & 9-11 & 21 ARE BLACK(N 1); 23 P PYROXENE 24 P % PCES 1 & 4-6 & 9-11 & 21 CONTAIN COARSE DARK GRAIN 25 P % OF PYX; 26 R TALC 27 R % ID UNCERTAIN, MAY BE CHRYSOTILE, IN VEINS; 28 84567A 29 214501500 484.60 487.55 487.60 BAL 13 1 L ALTERED BASALT; 2 N PCE 22 (145-150); 3 S VEINS SHOWING EXTENSION AND FILLED WITH CALCITE; 4 A MOD 5 A % BLACK FE-MN OXIDE; 6 O BROWN(5YR 3/4), DETAILED SKETCH ON SHIPBOARD FORM; 7 V SERP 8 R CALCITE 9 R % IN VEINS; 10 R FE-MN OX 11 R SERP 12 R % IN VESICLES; 13 84567A 29CC 0 330 484.60 487.70 487.93 BAL 9 1 L DRILL BRECCIA; 2 L SERPENTINITE; 3 L GABBRO; 4 L ALTERED BASALT; 5 N PCE NO PIECE NUMBERS ASSIGNED; 6 T SERP-GABBRO-ALTERED BASALT CLASTS; 7 A MOD; 8 O GRAIN SIZE 0.5-3CM; 9