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 60 454 A 5 1 0.0 67.00 67.00 68.48 FRYER, P. APHYRIC TO PLAG SPARSELY PHYRIC BASALT PCE 1 (2-7), 2 (9-15), 3 (17-18), 4 (20-25), 5 (28-33), 6 (54-42), 7 (43-54), 8 (58-59), 9 (52-56), 10 (68-75), 11 (77-82), 12 (83-90), 13 (92-98), 14 (100-108), 15 (110-116), 16 (117-122), 17A (124-127), 17B (128-138), 18 (141-148) APHYRIC TO PLAG SPARSELY PHYRIC MANY PCES SHOW SWIRLS OR VARIOLES OF ACICULAR PLAG INDICATING THAT THIS IS PROBABLY A PILLOWED UNIT, FE.OXIDE APPEARS ON FRACTURED SURFACES OF PCES 6 AND 16 MOD PCES SHOW ALTERATION ON CORED SURFACES, CENTERS OF RGER PCES ARE QUITE FRESH PCES SHOWING ALTERATION ARE YELLOW (10YR6/6) ON CORED SURFACES comments : BASALT APPEARS VERY POROUS BECAUSE OF MYRIAD TINY PIN-HOLE VESICLES FE.OXIDE 60 454 A 5 2 0.0 67.00 68.50 69.92 FRYER, P. APHYRIC TO PLAG SPARSELY PHYRIC BASALT PCE 1 (2-16), 2A (19-28), 2B (28-33), 3 (37-44), 4 (46-56), 5A (58-62), 5B (60-63), 5C (62-73), 6 (77-80), 7 (83-92), 8 (85-118), 9A (123-126), 9B (125-132), 9C (126-132), 10 (134-141) APHYRIC TO PLAG SPARSELY PHYRIC, SCORIACEOUS ON PCE 7, LENGTH OF COHERENT PCES IS GREATER PROBABLY PILLOWED UNIT, AMYGDALOIDAL, PCES 2A-B CONTAIN A VEIN OF DARK GREEN CLAYS, PCE 7 HAS A RADIAL ZEOLITE CLUMP ON ITS TOP FRACTURE SURFACE IN A SLIGHTLY SCORIACEOUS ZONE, PCE 8 HAS A THIN ENCRUSTATION OF PALE CLAYS ON ITS UPPERMOST FRACTURE SURFACE, MANY PCES SHOW VARIOLES WITH DISTINCT ONES IN PCE 3 comments: ALTERATION MARGINS ON PCES 1 AND 2A comments : BASALT APPEARS VERY POROUS BECAUSE OF MYRIADS OF OF TINY PINHOLE VESICLES, VUGS FILLED WITH RADIAL ZEOLITES ZEOLITE | CHLORITE | CLAY.MIN 60 454 A 5 3 0.0 67.00 70.00 71.50 FRYER, P. APHYRIC TO PLAG SPARSELY PHYRIC BASALT PCE 1 (3-16), 2A (18-34), 2B (34-53), 2C (54-65), 3 (68-83), 4 (86-87), 5A (90-101), 5B (101-108), 6A (110-136), 6B (136-150) APHYRIC TO PLAG SPARSELY PHYRIC, GRAIN SIZE FAIRLY UNIFORM, LENGTH OF COHERENT PCES IS GREATER FRACTURES AND SOME CORED SURFACES OF THE FRAGMENTS ARE ALTERED, PCES 3 AND 5A-B SHOW VARIOLES OF ACICULAR MINERALS, PCE 2B HAS A CRACK WITH FE AND MN OXIDES THAT CONTINUE FROM LOWER FRACTURE SURFACE OF PCE 2A MOD FROM PCE 6A AT BOTTOM TO PCE 6B, PCES 6A-B SHOW ALTERATION RIMS BASALT FRAGMENTS ARE MEDIUM DARK GREY (N4) WHEN DRY, PCES 6A-B HAVE ALTERATION RIM OF LIGHT OLIVE GREY (5Y5/2), FRACTURES AND ALTERATION OF CORED SURFACES SHOW COLOR OF MODERATE YELLOWISH BROWN (10YR5/4) comments : BASALT APPEARS VERY POROUS BECAUSE OF MYRIADS OF OF TINY PINHOLE VESICLES ZEOLITE comments : SCATTERED THROUGOUT | FE.OXIDE | MN.OXIDE 60 454 A 5 4 0.0 67.00 71.50 72.17 FRYER, P. APHYRIC TO PLAG SPARSELY PHYRIC BASALT PCE 1 (4-8), 2 (10-18), 3 (23-33), 4 (37-44), 5 (45-67) APHYRIC TO PLAG SPARSELY PHYRIC, COARSER GRAINED THAN IN PREVIOUS SECTIONS, MICRODIABASIC PCE 1 SHOWS SLIGHT ALTERATION ON FRACTURE SURFACES FRESH PCE 1 SHOWS ALTERATION ON FRACTURE ALTERATION ON PCE 1 IS MOD YELLOWISH BROWN (10YR5/4) comments : BASALT APPEARS VERY POROUS BECAUSE OF MYRIADS OF OF TINY PINHOLE VESICLES 60 454 A 6 1 0.0 76.50 76.50 78.00 FRYER, P. DRILL CUTTINGS PCE NO PCE NUMBERS ASSIGNED GRADED PUMICE AND VOLCANIC GLASS AND FINE GRAINED BASALT FRAGMENTS RANGING FROM CLAY SIZED FRAGMENTS AT THE TOP TO GRAINS A FEW MM IN DIAMETER AT THE BOTTOM OF THE CORE, PUMICE FRAGMENTS ARE ROUNDED, GLASS AND BASALT FRAGMENTS ARE ANGULAR, GRADED NATURE OF THE LAYER IS LIKELY THE RESULT OF DRILLING AGITATION TOP OF SEQUENCE HAS MINOR HOLOCENE SEDIMENTS OBVIOUSLY OUT OF PLACE 60 454 A 6 2 0.0 76.50 78.00 79.16 FRYER, P. DRILL CUTTINGS PCE 1 (91-101), 2 (101-111), 3 (109-116) GRADED PUMICE AND VOLCANIC GLASS AND FINE GRAINED BASALT FRAGMENTS TO A DEPTH OF 92CM OF THE SECTION, BELOW 92CM FRAGMENTED PCES OF APHYRIC BASALT, PCES ARE NOT SPACED SINCE THERE IS NOT ROOM IN THE CORE SECTION, PCE 1 IS A VERY FINE GRAINED APHYRIC BASALT, PCE 2 IS A COARSER GRAINED MICRODIABASIC APHYRIC BASALT comments: NARROW ALTERATION RIND ON PCE 1, PCE 2 IS QUITE FRESH 0.5-2 5 IRREGULAR comments : IN PCES OF BASALT BELOW 92CM, ALIGNED IN PARALLEL STREAKS ALONG THE CUT SURFACE, PCE 2 IS MOD VESICULAR IN PATCHES 60 454 A 6 CC 0.0 76.50 80.18 80.64 FRYER, P. APHYRIC BASALT PCE 1 (1-8), 2 (10-25), 3 (28-36), 4 (40-56) APHYRIC BASALT FRAGMENTS, FINE TO MEDIUM GRAINED, PCE 1 IS NUMEROUS FRAGMENTS OF BASALT, PCE 2 CONSISTS OF 5 FRAGMENTS OF APHYRIC BASALT, PCES 3-4 SHOW GRAIN SIZE VARIATIONS THROUGH FRAGMENTS FROM FINE TO MEDIUM comments: PCE 2 SHOWS MINOR ALTERATION PCE 2 IS MEDIUM LIGHT GREY (N6), PATCHES OF ALTERATION ARE LIGHT OLIVE GREY (5Y6/1) 1-2 60 454 A 8 1 0.0 95.50 95.50 96.07 MEIJER, A. APHYRIC BASALTPILLOW PCE 1 (3-9), 2 (12-16), 3 (19-21), 4 (24-26), 5 (28-31), 6 (55-56), 7 (40-43), 8 (45-46), 9 (49-51), 10 (54-57) APHYRIC, FINE GRAINED, SOME VARIOLITIC ZONES NEAR GLASS PILLOWS PRESENT LOGGING INDICATES THAT THIS INTERVAL IS OCCUPIED PRIMARILY BY SEDIMENTS WHICH WERE NOT RECOVERED AND BY LESSER AMOUNTS OF BASALT 0.5-2 IRREGULAR comments : A FEW FRAGMENTS HAVE THESE IRREGULAR VESICLES 60 454 A 8 1 57.0 95.50 96.07 97.00 MEIJER, A. SEDIMENT 60 454 A 9 1 0.0 104.00 104.00 104.15 MEIJER, A. APHYRIC BASALTPILLOW PCE 1 (3-4), 2 (6-8), 3 (10-15) APHYRIC, FINE TO MEDIUM GRAINED, PCE 3 HAS A GLASSY RIND PILLOW BASALT FRAGMENTS comments: ALL PCES ARE FRESH LOGGING DATA INDICATES THAT THE INTERVAL OF THIS CORE IS OCCUPIED BY SEDIMENTS SO THESE ARE INTERSEDIMENT PILLOWS, BASALT IS DARK GREY TO BLACK comments : VESICLES ARE GENERALLY ABSENT 60 454 A 10 1 0.0 113.00 113.00 113.85 MEIJER, A. APHYRIC BASALTPILLOW PCE 1 (3-5), 2 (7-13), 3 (15-18), 4 (20-30), 5 (32-39), 6 (41-49), 7A (52-57), 7B (59-62), 8 (64-70), 9 (71-78), 10 (81-85) APHYRIC, FINE TO MEDIUM GRAINED, MICROLITIC PLAG IN COARSER GRAINED PCES, GLASS RINDS ON PCES 1 AND 3, GENERALLY NOT GLASSY SEVERAL PCES HAVE CARB+CLAY.MIN VEINS WHICH DO NOT ALTER INTO MATRIX FRESH SOME SEDIMENTARY MATERIAL RECOVERED IN INTERVAL 20-30CM, LOGGING DATA INDICATES THAT SEVERAL METERS AT THE TOP OF THE INTERVAL ARE PRIMARILY SEDIMENTS, BASALT GREY TO BLUISH GREY CARB | CLAY.MIN 60 454 A 11 1 0.0 122.00 122.00 123.49 MEIJER, A. APHYRIC BASALT PCE 1 (2-6), 2 (10-18), 3 (20-25), 4A (27-41), 4B (42-51), 5 (53-57), 6 (59-62), 7 (65-68), 8 (70-75), 9 (77-84), 10 (86-92), 11 (96-108), 12 (110-118), 13 (121-129), 14 (132-138), 15 (141-149) APHYRIC, FINE TO MEDIUM GRAINED, GENERALLY LACKING GLASSY RINDS SEVERAL VEINS OF GREENISH CLAYS ARE PRESENT FRESHcomments: NOT SIGNIFICANTLY ALTERED EXCEPT FOR VEINS BASALT IS DARK GREY comments : VESICULAR CLAY.MIN 60 454 A 11 2 0.0 122.00 123.50 124.99 MEIJER, A. APHYRIC BASALT PCE 1A (3-6), 1B (7-13), 2 (16-20), 3A (24-27), 3B (28-32), 4 (34-36), 5A (40-52), 5B (53-57), 5C (58-67), 5D (68-79), 5E (80-84), 6A (86-109), 6B (110-123), 7A (126-133), 7B (135-141), 7C (142-149) APHYRIC, FINE TO MEDIUM GRAINED, GENERALLY LACKING GLASSY RINDS VEINS OF CARB+ZEOLITE SPRAYS IN SOME FRAGMENTS MOD PCES 5D-6A | FRESH REST OF SECTION BASALT GREYISH BLUE 0.1-1.5 CARB | ZEOLITE 60 454 A 11 3 0.0 122.00 125.00 126.50 MEIJER, A. APHYRIC BASALT PCE 1A (2-12), 1B (13-20), 1C (21-27), 2 (29-32), 3 (35-39), 4 (42-48), 5 (50-54), 6A (57-62), 6B (63-68), 7A (71-75), 7B (77-85), 7C (86-97), 8 (100-102), 9A (108-112), 9B (114-122), 9C (123-126), 10 (129-140), 11 (144-150) APHYRIC, FINE TO MEDIUM GRAINED, GENERALLY LACKING GLASSY RINDS SEVERAL VEINS OF CARB+ZEOLITE+PREHNITE IN SPRAYS, GREENISH BOTRYOIDAL COATING MODcomments: PCES 1A-C AND 6A-B AND 11 | FRESH REST OF SECTION BASALT IS GREY TO BLUISH GREY 0.1-1.5 CARB | ZEOLITE | PREHNITE 60 454 A 11 4 0.0 122.00 126.50 127.96 MEIJER, A. APHYRIC BASALT PCE 1A (2-15), 1B (15-35), 1C (35-48), 1D (50-55), 2 (57-66), 3 (69-77), 4 (79-88), 5 (91-102), 6 (105-113), 7A (117-121), 7B (125-129), 8A (137-142), 8B (142-146) APHYRIC, FINE TO MEDIUM GRAINED, GENERALLY LACKING GLASSY RINDS SEVERAL VEINS OF CARB+SMEC OR CARB+CHLORITE, ONE OXIDIZED VEIN OCCURS IN PCE 8B FRESH comments : VESICULAR CARB comments : RANDOMLY DISTRIBUTED IN CORE | ZEOLITE | SMEC comments : POSSIBLY CHLORITE 60 454 A 12 1 0.0 131.00 131.00 132.47 MEIJER, A. APHYRIC BASALT PCE 1A (2-7), 1B (8-14), 1C (15-20), 2 (23-25), 3 (28-31), 4 (35-36), 5A (40-44), 5B (45-49), 6 (53-58), 7 (63-68), 8 (72-74), 9 (77-80), 10 (82-85), 11 (87-98), 12 (102-105), 13 (108-121), 14 (123-129), 15 (133-135), 16 (136-137), 17 (140-147) APHYRIC, FINE TO MEDIUM GRAINED, PART OF GLASSY RIND ON PCE 17 SEVERAL VEINS OF CARB AND SMEC OR CHLORITE, PCE 17 HAS A 0.5CM VEIN CONTAINING CARB+SMEC CLAY WITH FRAGMENTS OF ENCLOSING BASALT FRESH BASALT IS GREYISH BLACK TO GREY comments : VESICULAR CARB | SMEC | CHLORITE 60 454 A 12 2 0.0 131.00 132.50 133.72 FRYER, P. APHYRIC BASALTMUDSTONE BELOW 90CM PCE 1 (3-8), 2 (10-21), 3A (23-30), 3B (30-48), 4 (52-55), 5 (58-63), 6 (67-71), 7 (73-81), 8 (84-89), 9 (91-122) APHYRIC, FINE TO MEDIUM GRAINED FRACTURES IN PCES 3A-B CONTAIN A DARK GREEN MATERIAL AND THERE ARE VEINS PRESENT MOD PCES 1+4-9 | FRESH REST OF SECTION, SLIGHTLY ALTERED NEAR VEINS PCES 3A-B CONTAIN A DARK GREEN MINERAL (5G3/2), PCES 1+4-8 ARE PARTIALLY ALTERED TO OLIVE GREY (5Y4/1), BELOW 90CM IN THE SECTION THE MATERIAL RECOVERED IS AN OLIVE GREY (5Y3/2) TO LIGHT OLIVE GREY (5Y5/2) INDURATED MUDSTONE SHOWING SIGNS OF BIOTURBATION, GREYISH BLUE SECONDARY MINERAL IN VEINS (5PB5/2) comments : VESICLES ARE PRESENT IN PCES 1-8 AND ARE BOTH IRREGULARLY AND SPHERICALLY SHAPED, MOST ARE LINED WITH A GREYISH BLUE SECONDARY MINERAL comments : GREYISH BLUE AND DARK GREEN SECONDARY MINERALS PRESENT 60 454 A 14 1 0.0 149.00 149.00 149.79 FRYER, P. APHYRIC BASALT PCE 1 (2-7), 2 (10-17), 3 (19-26), 4 (30-34), 5 (37-42), 6 (45-51), 7 (53-57), 8 (60-66), 9 (70-72), 10 (77-79) APHYRIC, PILLOW FRAGMENTS AND VESICULAR FRAGMENTS, PILLOW FRAGMENTS ARE VARIOLITIC, PCES 6-10 ARE PILLOW FRAGMENTS SHOWING VARIATIONS IN TEXTURE FROM VARIOLITIC TO GLASSY MOD PCES 6-8 ARE SLIGHTLY ALTERED comments : PCES 2-7 SHOW AN IRREGULAR DISTRIBUTION OF VESICLES, PCE 1 HAS SMALL VESICLES IN GENERAL EVENLY DISTRIBUTED THROUGHOUT THE ROCK 60 454 A 15 1 0.0 158.00 158.00 158.17 FRYER, P. APHYRIC BASALT PCE 1 (3-9), 2 (13-17) APHYRIC, MATRIX OF THE ROCK AROUND THE VESICLES IS FINER GRAINED SLIGHTLY FRAGMENTS COATED WITH DUSKY YELLOW ALTERATION PRODUCT (5Y6/4) comments : NUMEROUS MINUTE SPHERICAL VESICLES AND SPARSE PATCHES OF IRREGULARLY SHAPED VESICLES CLAY.MIN | FE.HYDRX 60 454 A 16 1 0.0 162.00 162.00 163.42 FRYER, P. APHYRIC BASALT PCE 1 (3-7), 2 (9-12), 3 (14-18), 4 (19-22), 5 (24-32), 6 (34-37), 7 (39-42), 8 (44-48), 9 (50-57), 10 (60-63), 11 (66-70), 12 (72-76), 13 (78-88), 14 (91-92), 15 (95-97), 16 (99-102), 17 (105-107), 18 (110-117), 19 (119-122), 20 (125-132), 21 (134-142) APHYRIC, PCES 3-4 AND 13-18 ARE FRAGMENTS OF PILLOW BASALTS WITH GLASSY MARGINS AND/OR VARIOLITIC TEXTURES, ALL OTHER PCES ARE COARSER GRAINED AND PROBABLY REPRESENT PILLOW INTERIORS, IN GENERAL THE PILLOW FRAGMENTS APPEAR LESS ALTERED ALTHOUGH THIS MAY BE THE EFFECT OF FINER GRAIN SIZE OF THE MATRIX, PCE 14 IS EXTREMELY FINE GRAINED SLIGHTLY PILLOW INTERIORS ARE OLIVE GREY (5Y4/1) WITH FRESHER LOOKING PATCHES THAT ARE DARK GREY (N4) comments : BASALTS ARE VERY POROUS AS THE RESULT OF A HIGH PROPORTION OF PIN-HOLE VESICLES UNIFORMLY DISPERSED THROUGHOUT 60 454 A 16 2 0.0 162.00 163.50 163.67 FRYER, P. APHYRIC BASALT PCE 1 (3-8), 2 (10-17) APHYRIC, COARSER GRAINED AS PILLOW INTERIORS IN PREVIOUS SECTION MOD MOST OLIVE GREY (5Y4/1) WITH SOME PATCHES OF LIGHT OLIVE GREY (5Y5/2) comments : PCE 1 HAS VERY IRREGULARLY SHAPED VESICLES A FEW MM IN DIAMETER, PCE 2 HAS NUMEROUS SMALL SPHERICAL VESICLES AND A FEW LARGE IRREGULAR VESICLES 60 454 A X1 1 0.0 FRYER, P. APHYRIC BASALT PCE 1 (2-8), 2 (12-16) APHYRIC MOD PCE 1 | SLIGHTLY PCE 2 MOD ALTERED PARTS ARE DARK GREY (N3) OR MEDIUM DARK GREY (N4) WITH OLIVE GREY ZONES OF ALTERATION comments : PCE 1 HAS PATCHES OF IRREGULARLY SHAPED VESICLES WHICH CLUSTER AROUND DARK GREY AREAS, PCE 2 SHOWS IRREGULAR DISTRIBUTION OF VESICLES IN SIZE AND SHAPE AND FREQUENCY