Leg : 65 Top/Bottom Interval(mm): 0/ 400 Analyst: Flower, M.
Hole: 482C Sample Midpoint (m) : 132.40
Core: 9 Top of Core Depth (m) : 132.00
Sect: 1 Top of Section Depth(m): 132.00
LITHOLOGY: SEDIMENT;
Piece No. : PCE 1 (0-40);
Leg : 65 Top/Bottom Interval(mm): 400/ 580 Analyst: Flower, M.
Hole: 482C Sample Midpoint (m) : 132.58
Core: 9 Top of Core Depth (m) : 132.00
Sect: 1 Top of Section Depth(m): 132.40
LITHOLOGY: SEDIMENT;
DOLOMITE;
Piece No. : PCES 2 (42-47), 3A (50-54), 3B (55-58);
Leg : 65 Top/Bottom Interval(mm): 580/1500 Analyst: Flower, M.
Hole: 482C Sample Midpoint (m) : 133.50
Core: 9 Top of Core Depth (m) : 132.00
Sect: 1 Top of Section Depth(m): 132.58
LITHOLOGY: APHYRIC BASALT;
MASSIVE;
Piece No. : PCES 4 (61-64), 5 (66-68), 6 (71-74), 7 (75-78),
8 (80-86), 9 (88-98), 10 (100-105), 11 (107-116),
12 (115-120), 13 (120-126), 14 (126-130),
15 (131-140), 16 (142-148);
Texture : APHYRIC;
Structure : FRAGMENTS OF VEIN FILLED WITH CALCITE AND
DISSEMINATED SULFIDE AND SOME SMECTITE IN PCE 4,
SIMILAR FILLED CRACKS IN LOWER SECTIONS BUT WITH
SULFIDE AND OTHER MINERALS, MASSIVE;
Alteration : SLIGHTLY
PCE 4 HAS ALTERATION HALO NEAR VEIN WITH ADJACENT
FRESH ROCK, PCES 10-16 ARE FRESH;
Comments : TOP OF BASEMENT SECTION BASALT-SEDIMENT CONTACT NOT
PRESERVED AS IN 482B;
Vesicles : Size(mm): Percent: <2
Location: Filling: SMECTITE
VERY SMALL AMYGOULES PERSIST THROUGHOUT MOST OF
CORE;
Replacement: SULFIDES
DISSEMINATED SULFIDES VISIBLE IN BASALT NEAR TOP
OF SECTION & PARTICULARLY NEAR VEINS;
SMECTITE
CALCITE
Leg : 65 Top/Bottom Interval(mm): 0/ 250 Analyst: Flower, M.
Hole: 482C Sample Midpoint (m) : 133.75
Core: 9 Top of Core Depth (m) : 132.00
Sect: 2 Top of Section Depth(m): 133.50
LITHOLOGY: APHYRIC BASALT;
MASSIVE;
Piece No. : PCES 1 (0-4), 2 (5-9), 3 (11-19), 4 (20-25);
Texture : APHYRIC;
Structure : HARILINE CRACKS, MASSIVE;
Alteration : FRESH
HARILINE CRACKS SHOWING INCIPIENT ALTERATION;
Comments : CONTINUING LITHOLOGY FROM CORE 9-1;
Vesicles : Size(mm): Percent: <1
Location: Filling: SMECTITE
MICROAMYGDOULE OF SMECTITE;
Replacement: SMECTITE
Leg : 65 Top/Bottom Interval(mm): 0/1500 Analyst: Schmincke, H.
Hole: 482C Sample Midpoint (m) : 140.50
Core: 10 Top of Core Depth (m) : 139.00
Sect: 1 Top of Section Depth(m): 139.00
LITHOLOGY: APHYRIC BASALT;
MASSIVE;
Piece No. : PCES 1A (1-10), 1B (9-17), 1C (18-24), 1D (25-29),
1E (30-35), 1F (35-45), 1G (46-60), 2A (60-71),
2B (72-81), 3 (82-93), 4A (94-110), 4B (110-125),
5A (127-138), 5B (138-150);
Texture : MEDIUM GRAINED, APHYRIC;
Structure : FRACTURED WITH MOSTLY SUBVERTICAL AND SUBHORIZONTAL
FRACTURES, PCES 1A-G BY SUMBERTICAL FRACTURE 0.3 TO
0.8MM WIDE(1A-C) THAT DECREASES TO HAIRLINE
FRACTURE AND LINED WITH BROWNISH SULFIDE
(CHALCOPYRITE?) FOLLOWED BY PYRITE(?), FRACTURES
GENERALLY LINED WITH SMECTITE AND SULFIDE RARELY
CARBONATE, MASSIVE;
Alteration : SLIGHTLY
PCES 1A-G ARE STRONGLY ALTERED, VEIN HAS
PRONOUNCED BLEACHED ALTERATION HALO CONSISTING OF
1)A DARK INNER ZONE OF SMECTITE(?) 2) BLUISH-WHITE
ZEOLITES(?) 3) A DARK OUTER RIM & OUTWARD
PROTRUSIONS ALONG CROSS FRACTURES, DIFFUSE
ALTERATION OUTSIDE MAIN HALO CONSISTS OF SULFIDE
N VESICLES AND GROUNDMASS & IN SPOTTY BLEACHED
AREAS;
Comments : GRAIN SIZE & COLOR & VESICLES SUGGEST THAT CORE
CONTINUES FROM 9-2;
Vesicles : Size(mm): .5-1 Percent: 12
Location: Filling: SMECTITE,CARB
THROUGHOUT CORE VESICLES ARE FILLED WITH GREEN
SMECTITE(?) & LARER VESICLES ALSO WITH CARBONATE
IN CENTRAL PART, PARTLY VUGGY OPEN CAVITIES WITH
SOME CALCITE AND ZEOLITE(?) GROWING ON SULFIDE
CRYSTALS;
Replacement: SULFIDE
DISSEMINATED THROUGHOUT ROCK;
SMECTITE
CARBONATE
PYRITE
ID PYRITE UNCERTAIN;
ZEOLITE
ID ZEOLITES UNCERTAIN;
Leg : 65 Top/Bottom Interval(mm): 0/1500 Analyst: Zolotarev, B.
Hole: 482C Sample Midpoint (m) : 142.00
Core: 10 Top of Core Depth (m) : 139.00
Sect: 2 Top of Section Depth(m): 140.50
LITHOLOGY: APHYRIC BASALT;
MASSIVE;
Piece No. : PCES 1A (0-7), 1B (3-13), 1C (12-17), 1D (18-29),
2 (30-39), 3 (40-50), 4 (51-97), 5A (89-94),
5B (94-120), 5C (121-127), 6 (130-140), 7 (142-150);
Texture : MEDIUM GRAINED, APHYRIC;
Structure : IRREGULAR VERY THIN FRACTURES PCES(1D,5A,5C,7)
FILLED WITH DARK MATERIAL(CLAY MINERALS?) AND
CARBONATE AND RARE PYRITE, MASSIVE;
Alteration : SLIGHTLY TO MODERATE;
Comments : GREY;
Vesicles : Size(mm): .5-3 Percent: 1-3
Location: Filling: PYRITE,CARB,CLAY
OCCUR IRREGULARLY & FILLED WITH WHITE AND GREY
MATERIAL;
Replacement: PYRITE
RARE;
CLAY
CARBONATE
Leg : 65 Top/Bottom Interval(mm): 0/1140 Analyst: Schmincke, H.
Hole: 482C Sample Midpoint (m) : 143.14
Core: 10 Top of Core Depth (m) : 139.00
Sect: 3 Top of Section Depth(m): 142.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (0-5), 2 (7-15), 3 (18-27), 4 (29-35),
5 (37-50), 6 (52-58), 7 (60-70), 8 (72-83),
9 (85-95), 10 (97-105), 11 (107-114);
Texture : APHYRIC, MEDIUM GRAINED;
Alteration : FRESH;
Comments : RELATIVELY UNFRACTURED, GREY, SAME COOLING UNIT AS
10-2 BUT SLIGHTLY FINER GRAINED;
Vesicles : Size(mm): .5-3 Percent: <3
Location: Filling: SMECTITE,CARB,
Location: Filling: ZEOLITE
SPARSELY VESICULAR, SMALLER VESICLES FILLED WITH
GREEN SMECTITE(?)-LARGER WITH ADDITIOAL CARBONATE
AND ZEOLITE(?) IN CENTRE;
Replacement: SMECTITE
ZEOLITE
CARBONATE
Leg : 65 Top/Bottom Interval(mm): 0/1500 Analyst: Flower, M.
Hole: 482C Sample Midpoint (m) : 149.50
Core: 11 Top of Core Depth (m) : 148.00
Sect: 1 Top of Section Depth(m): 148.00
LITHOLOGY: APHYRIC BASALT;
MASSIVE;
Piece No. : PCES 1 (0-10), 2 (14-23), 3 (25-35), 4 (40-46),
5 (47-60), 6 (60-66), 7 (68-72), 8A (73-87),
8B (78-88), 8C (87-92), 9 (94-110), 10 (113-129),
11 (121-130), 12 (130-134), 13 (135-145),
14 (141-150);
Texture : AHPYRIC, MEDIUM GRAINED;
Structure : HAIRLIN CRACKS FILLED WITH CALCITE AND SMECTITE,
MASSIVE;
Alteration : SLIGHTLY
ALTERATION MAY BE MORE ADVANCED THAN IN EQUIVALENT
SEQUENCE IN 482B BUT IS NOT PERVASIVE;
Comments : CONTINUOUS SECTION, GREY;
Vesicles : Size(mm): Percent: <2
Location: Filling: SMECTITE
IN SOME PCES;
Replacement: SMECTITE
SMECTITE REPLACEMENT IN GROUNDMASS IS PATCHY
PROBABLY ASSOCIATED WITH FRACTURES;
CALCITE
Leg : 65 Top/Bottom Interval(mm): 0/1500 Analyst: Flower, M.
Hole: 482C Sample Midpoint (m) : 151.00
Core: 11 Top of Core Depth (m) : 148.00
Sect: 2 Top of Section Depth(m): 149.50
LITHOLOGY: APHYRIC BASALT;
MASSIVE;
Piece No. : PCES 1 (1-13), 2 (14-29), 3A (31-36), 3B (35-43),
3C (43-49), 4 (50-54), 5 (55-65), 6 (66-85),
7 (85-90), 8 (90-96), 9 (97-119), 10 (120-134),
11 (135-150);
Texture : APHYRIC, MEDIUM GRAINED EXCEPT FOR PCES 3-6;
Structure : MASSIVE;
Alteration : EXTENSIVE
PCES 2A-C ARE APPROXIMATELY 30-50% SMECTITE AND
OTHER SECONDARY MINERALS;
SLIGHT TO MODERATE
PCES 1 AND 3-11;
Comments : LESS ALTERED THAN 11-1 BUT OTHERWISE IDENTICAL IN
LITHOLOGY;
Replacement: SMECTITE
PCES 2A-C ARE APPROXIMATELY 30-50% SMECTITE AND
OTHER SECONDARY MINERALS;
Leg : 65 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 482C Sample Midpoint (m) : 152.50
Core: 11 Top of Core Depth (m) : 148.00
Sect: 3 Top of Section Depth(m): 151.00
LITHOLOGY: APHYRIC BASALT;
MASSIVE;
Piece No. : PCES 1A (0-6), 1B (6-23), 2 (25-52), 3 (53-68),
4 (70-74), 5 (75-80), 6A (83-93), 6B (93-104),
7 (105-112), 8 (114-124), 9 (125-134), 10 (135-136),
11A (138-145), 11B (146-150);
Texture : APHYRIC;
Structure : MASSIVE, HAIRLINE FRACTURES, SMECTITE AROUND VEINS;
Alteration : FRESH
LESS ALTERED THAN 11-2, PCES(1,2,4) SHOW
ALTERATION ADJACENT TO HAIRLNE FRACTURES;
Comments : GREY, CONTINUATION OF COOLING UNIT IN 11-2;
Vesicles : Size(mm): Percent: 0
Replacement: SMECTITE
GROWTH OF SMECTITE IN GROUNDMASS;
Leg : 65 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 482C Sample Midpoint (m) : 154.00
Core: 11 Top of Core Depth (m) : 148.00
Sect: 4 Top of Section Depth(m): 152.50
LITHOLOGY: APHYRIC BASALT;
MASSIVE;
Piece No. : PCES 1 (0-8), 2 (10-14), 3 (15-24), 4 (25-35),
5 (36-45), 6 (46-49), 7 (51-53), 8 (55-63),
9 (63-68), 10 (70-75), 11 (75-81), 12 (82-90),
13 (90-109), 14 (110-121), 15 (123-130),
16 (131-140), 17 (142-150);
Texture : APHYRIC, PCES 16 & 17 DISTINCTLY FINER GRAINED THAN
REST OF SECTION;
Structure : THIN SMECTITE AND CALCITE VEINS IN PCES(8.9.16.17);
Alteration : FRESH
NO OBVIOUS ALTERATION HALOS BUT PLAG PHENOS ARE
REPLACED BY MIXTURE OF SMEC & CALCITE;
Comments : SAME UNIT AS 11-3, GREY;
Phenocrysts: PLAGIOCLASE
Size(mm): 1-2
APPROXIMATELY SIX CRYSTALIZED PCES IN 11-4,
APPEARANCE OF SMALL PHENOS AT BASE OF MASSIVE UNIT
VERY SIMILAR TO FIRST UNIT I HOLE 482B;
Replacement: ZEOLITE
CALCITE
PLAG PHENOS REPLACED BY A MIXTURE OF ZEOLITE AND
CALCITE;
Leg : 65 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 482C Sample Midpoint (m) : 158.50
Core: 12 Top of Core Depth (m) : 157.00
Sect: 1 Top of Section Depth(m): 157.00
LITHOLOGY: PLAG PHYRIC BASALT;
MASSIVE;
Piece No. : PCES 1A (0-9), 1B (8-16), 1C (16-26), 1D (26-36),
1E (36-69), 2 (70-71), 3A (73-74), 3B (73-150);
Texture : PHYRIC, GRAIN SIZE INCREASES DOWN FROM PCE 1 TO 3,
PCE 1 IS FINE GRAINED WITH NO OBSERVABLE GLASSY
RIND;
Structure : RARE THIN VEINS LINED WITH SMECTITE, MASSIVE;
Alteration : FRESH;
Comments : GREY, DIFFERENT COOLING UNIT TO THAT OF CORE 11;
Vesicles : Size(mm): Percent: 1
Location: Filling: SMECTITE
OCCASSIONAL VESICLES FILED WITH SMECTITE;
Leg : 65 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 482C Sample Midpoint (m) : 160.00
Core: 12 Top of Core Depth (m) : 157.00
Sect: 2 Top of Section Depth(m): 158.50
LITHOLOGY: PLAG PHYRIC BASALT;
MASSIVE;
Piece No. : PCES 1A (0-6), 1B (6-20), 1C (20-29), 2A (31-38),
2B (38-42), 3 (43-46), 4A (47-55), 4B (55-63),
5 (64-70), 6A (72-78), 6B (78-84), 6C (85-100),
6D (101-110), 6E (110-118), 6F (119-128),
7 (130-133), 8 (135-140), 9 (142-150);
Texture : PHYRIC, GRAIN SIZE SLIGHTLY COARSER THAN 12-1 AND
STILL INCREASING TOWARD BASE OF SECTION;
Structure : OCCASIONAL SMECTITE LINED FRACTURE APPEAR DEVOID OF
ALTERATION HALOS, MASSIVE;
Alteration : FRESH;
Comments : GREY, SAME UNIT AS 12-1;
Vesicles : Size(mm): Percent: 1-2
Location: Filling: SMECTITE,ZEOLITE
MANY VESICLES MOSTLY FILLED WITH SMECTITE AND SOME
LARGER ONES MAY HAVE CORE OF ZEOLITE;
Phenocrysts: PLAGIOCLASE ( 5%)
Size(mm): TO 5-6
LARGE ARE UP TO 5-6MM WITH AVG 1-2MM IN LENGTH;
Replacement: SMECTITE
Leg : 65 Top/Bottom Interval(mm): 0/ 190 Analyst: Morrison, M. Ann
Hole: 482C Sample Midpoint (m) : 160.19
Core: 12 Top of Core Depth (m) : 157.00
Sect: 3 Top of Section Depth(m): 160.00
LITHOLOGY: PLAG MOD PHYRIC BASALT;
Piece No. : PCE 1A (0-13), 1B (13-19);
Texture : PHYRIC;
Structure : SAMPLE BROKE ALONG SMECTITE LINED FRACTURES UP TO
1-2MM WIDE, MINUTE SPECKS OF SULFIDE OCCUR INSIDE
THE VEINS;
Alteration : FRESH
THIN 1-2MM WIDE ALTERATION HALOS ALONG FRACTURES;
Comments : SAME AS 12-1 AND 12-2;
Phenocrysts: PLAGIOCLASE ( TO 5%)
Replacement: SMECTITE
SULFIDE
Leg : 65 Top/Bottom Interval(mm): 0/ 300 Analyst: Schmincke, H.
Hole: 482C Sample Midpoint (m) : 161.80
Core: 13 Top of Core Depth (m) : 161.50
Sect: 1 Top of Section Depth(m): 161.50
LITHOLOGY: PLAH SPARSELY PHYRIC BASALT;
Piece No. : PCE 1 (0-3);
Texture : PHYRIC;
Comments : DARK BROWN 1-3MM INDURATED(BAKED?) FORAMINEFERAL
MUDSONE COATING "MINI PILLOW" WITH 1-2MM THICK
BLUISH GLASS(DEVITRIFIED) OVERLYING 1MM VARIOLOTIC
ZONE;
Phenocrysts: PLAGIOCLASE ( <3%)
Size(mm): TO 4
Leg : 65 Top/Bottom Interval(mm): 500/1320 Analyst: Schmincke, H.
Hole: 482C Sample Midpoint (m) : 162.82
Core: 13 Top of Core Depth (m) : 161.50
Sect: 1 Top of Section Depth(m): 162.00
LITHOLOGY: PLAG MOD PHYRIC BASALT;
MASSIVE;
Piece No. : PCES 2 (5-14), 3A (17-21), 3B (23-27), 3C (27-28),
4 (29-34), 5 (35-53), 6A (54-65), 6B (66-75),
7 (72-80), 8 (82-90), 9 (90-100),10 (100-106),
11A (107-117), 11B (113-132), 12 (134-135),
13 (135-142);
Texture : PHYRIC, FINE-MEDIUM GRAINED;
Structure : RARE HAIRLINE FRACTURES LINED WITH SMECTITIE,
MASSIVE;
Alteration : SOME PCES IN 2-5 & 8 HAVE MORE ALTERED RINDS-
PEBBLES OR WEATHERING(?);
Comments : GREY;
Vesicles : Size(mm): TO 2 Percent: 1-5
Location: Filling: SMECTITE,CLAY
DOWNWARD DECREASE IN AMOUNT AND SIZE OF VESICLES
FROM 3-5% AND UP TO 2MM TO <1% AND 1MM, ABUNDANT
SEGREGATION VESICLES IN PCES 2 TO 5 FILLED WITH
GREEN SMECTITE(?) AND LARGER VESICLES ALSO WITH
VERY PALE GREEN CLAY WITH SHRINKAGE CRACKS IN
CENTER;
Phenocrysts: PLAGIOCLASE ( <3%)
Size(mm): TO 4
Replacement: SMECTITE
SULFIDE
CLAY
Leg : 65 Top/Bottom Interval(mm): 0/1500 Analyst: Schmincke, H.
Hole: 482C Sample Midpoint (m) : 164.50
Core: 13 Top of Core Depth (m) : 161.50
Sect: 2 Top of Section Depth(m): 163.00
LITHOLOGY: PLAG MOD PHYRIC BASALT;
MASSIVE;
Piece No. : PCES 1A (0-14), 1B (14-30), 1C (30-40), 1D (40-90),
1E (90-117), 2 (121-130), 3A (132-136),
3B (136-149);
Texture : PHYRIC, MEDIUM GRAINED, FINER GRAINED THAN 13-3;
Structure : SMECTITE ALONG RARE HAIRLNE FRACTURES, MASSIVE;
Alteration : FRESH;
Comments : UNIT CONTINUES FROM 13-1 ND INTO 13-3;
Vesicles : Size(mm): <1 Percent: <1
Location: Filling: SMECTITE
PCE 3A HAS VESICLES UP TO 2MM;
Phenocrysts: PLAGIOCLASE ( <3%)
Size(mm): <4
Replacement: SMECTITE
Leg : 65 Top/Bottom Interval(mm): 0/1500 Analyst: Zolotarev, B.
Hole: 482C Sample Midpoint (m) : 166.00
Core: 13 Top of Core Depth (m) : 161.50
Sect: 3 Top of Section Depth(m): 164.50
LITHOLOGY: PLAG MOD PHYRIC BASALT;
MASSIVE;
Piece No. : PCES (0-53), 2 (54-60), 3 (61-74), 4A (75-83),
4B (83-90), 5 (90-95), 6 (97-102), 7 (104-135),
8 (137-142), 9 (144-150);
Texture : PHYRIC, MEDIUM GRAINED;
Structure : THIN FRACTURES IN PCES(1,3,4,8) FILLED WITH GREENISH
MATERIAL(SMECTITE?) AND SPARSE CALCITE, MASSIVE;
Alteration : FRESH;
Comments : GREY;
Vesicles : Size(mm): .5-2.5 Percent:
Location: Filling: SMECTITE,PYRITE
VESICLES OCCUR UNEVENLY AND FILLED WITH GREENISH
MATERIAL(SMECTITE) AND VERY RARE PYRITE;
Phenocrysts: PLAGIOCLASE ( 1-3%)
Size(mm): 1.5-4
Replacement: PHENOS OCCUR UNEVENLY FROM 1% PCE 1 TO 3% PCE 7;
SMECTITE
GREENISH MATERIAL MAY BE SMECTITE;
PYRITE
Leg : 65 Top/Bottom Interval(mm): 0/ 200 Analyst: Schmincke, H.
Hole: 482C Sample Midpoint (m) : 166.20
Core: 14 Top of Core Depth (m) : 166.00
Sect: 1 Top of Section Depth(m): 166.00
LITHOLOGY: MICROPILLOW;
Piece No. : PCE 1 (0-2);
Texture : CRUST OF DEVITRIFIED PARTLY PALAGONITIZED GLASS AND
VERY THIN PATCH OF BROWN INDURAED(BAKED?) MUDSTONE
CENTRAL ZONE BROWNISH TACHYLITE;
Alteration : FRESH;
Comments : ALMOST IDENTICAL TO "MICROPILLOW" AT TOP OF 13-1 AND
MAY COME FROM SAME HORIZON;
Leg : 65 Top/Bottom Interval(mm): 20/1500 Analyst: Schmincke, H.
Hole: 482C Sample Midpoint (m) : 167.50
Core: 14 Top of Core Depth (m) : 166.00
Sect: 1 Top of Section Depth(m): 166.02
LITHOLOGY: PLAG MOD PHYRIC BASALT;
MASSIVE;
Piece No. : PCES 2A (3-20), 2B (20-34), 2C (33-40), 2D (38-49),
3 (51-58), 4 (60-65), 5 (66-72), 6 (78-83),
7 (85-90), 8 (92-95), 9 (97-102), 10 (103-109),
11 (110-123), 12 (125-133), 13 (134-142),
14 (144-150);
Texture : MOTTLED, MEDIUM GRAINED, PHYRIC;
Structure : ALONG RARE FRACTURE SURFACES-PCE 14 THERE ARE GREEN
SLICKENSIDED MINERALS MAY BE CHLORITE(?), MASSIVE;
Alteration : SLIGHTLY
SMECTITE ALTERATION MAY BE MORE PERVASIVE, MAFICS
ARE OXIDIZED(?), ON TOP OF PCE 5 WHICH MAY HAVE
HIGHER GRADE ALTERATION ASSEMBLAGE;
Comments : VERY SIMILAR TO CORE 13 AND PROBABLY CONTINUATION OF
SAME(?) THICK COOLING UNIT, BASALT IN CORES 13 & 14
HAS YELLOWISH OUTER SURFACE;
Vesicles : Size(mm): <1 Percent: <1
Phenocrysts: PLAGIOCLASE ( <3%)
Size(mm): 0.5
Replacement: CHLORITE
ID UNCERTAIN OF THIS SLICKENSIDED MINERAL;
Leg : 65 Top/Bottom Interval(mm): 0/1500 Analyst: Zolotarev, B.
Hole: 482C Sample Midpoint (m) : 169.00
Core: 14 Top of Core Depth (m) : 166.00
Sect: 2 Top of Section Depth(m): 167.50
LITHOLOGY: PLAG MOD PHYRIC BASALT;
MASSIVE;
Piece No. : PCES 1 (0-7), 2A (10-15), 2B (25-32), 2C (33-37),
2D (39-44), 3 (46-52), 4 (55-63), 5A (65-71),
5B (72-80), 5C (80-85), 5D (86-90), 53 (91-104),
5F (104-119), 6 (120-134), 7 (135-143), 8 (144-150);
Texture : MEDIUM GRAINED, PHYRIC, SOME GLOMERAPHYRIC
SEGREGATION OF PLAGIOCLASE;
Structure : SOME FRACTURES PCES (1A-D,5) FILLED WITH SMECTITE
AND CALCITE, MASSIVE;
Alteration : MOD-SLIGHT;
Comments : GREY;
Vesicles : Size(mm): Percent: 0
NONE OBVIOUS;
Phenocrysts: PLAGIOCLASE ( 2-3%)
Size(mm): 1.5-4
Replacement: CALCITE
SMECTITE
Leg : 65 Top/Bottom Interval(mm): 0/1450 Analyst: Zolotarev, B.
Hole: 482C Sample Midpoint (m) : 170.45
Core: 14 Top of Core Depth (m) : 166.00
Sect: 3 Top of Section Depth(m): 169.00
LITHOLOGY: PLAG SPARSELY PHYRIC BASALT;
MASSIVE;
Piece No. : PCES 1A (0-19), 1B (1938), 1C (38-56), 1D (56-67),
1E (66-78), 1F (78-87), 2A (89-100), 2B (100-110),
2C (110-116), 2D (115-130), 2E (130-143);
Texture : PHYRIC, MEDIUM GRAINED;
Structure : NO FRACTURES, MASSIVE;
Alteration : FRESH;
Comments : GREY, SIMILAR O 14-2;
Vesicles : Size(mm): Percent: 0
NONE OBVIOUS;
Phenocrysts: PLAGIOCLASE ( 1-2%)
Size(mm): 1-3
Leg : 65 Top/Bottom Interval(mm): 0/1400 Analyst: Schmincke, H.
Hole: 482C Sample Midpoint (m) : 171.90
Core: 14 Top of Core Depth (m) : 166.00
Sect: 4 Top of Section Depth(m): 170.50
LITHOLOGY: PLAG SPARSELY PHYRIC BASALT;
MASSIVE;
Piece No. : PCES 1A (0-20), 1B (20-25), 2 (26-35), 3 (36-50),
4 (53-55), 5A (47-69), 5B (69-85), 5C (85-90),
5D (90-100), 5E (100-120), 5F (120-134),
5G (135-139);
Texture : MEDIUM GRAINED, HOMOGENEOUS, PHYRIC;
Structure : VERY RARE HAIRLINE FRACTURES LINED WITH GREEN
SMECTITE, MASSIVE;
Alteration : FRESH
ALTERATION MINOR AND CONFINED TO GREEN SMECTITE IN
VESICLES AND ALONG VERY RARE HAIRLINE FRACTURES
AND IN GROUNDMASS;
Comments : GREY, CONTINUATION OF PREVIOUS SECTIONS;
Vesicles : Size(mm): <1 Percent: <2
Location: Filling: SMECTITE
SPARSELY VESICULAR;
Phenocrysts: PLAGIOCLASE ( <2%)
Size(mm): <.5
Replacement: SMECTITE
GREEN SMECTITE RESTRICTED TO VESICLE AND
GROUNDMASS AND FRACTURES;
Leg : 65 Top/Bottom Interval(mm): 0/ 470 Analyst: Zolotarev, B.
Hole: 482C Sample Midpoint (m) : 172.47
Core: 14 Top of Core Depth (m) : 166.00
Sect: 5 Top of Section Depth(m): 172.00
LITHOLOGY: PLAG MOD PHYRIC BASALT;
MASSIVE;
Piece No. : PCES 1 (0-16), 2A (18-25), 2B (25-40), 2C (41-47);
Texture : PHYRIC, MEDIUM GRAINED;
Structure : MASSIVE;
Alteration : FRESH
CONSIDERABLY;
Comments : GREY, SAME AS 14-4;
Vesicles : Size(mm): Percent: 0
NONE OBVIOUS;
Phenocrysts: PLAGIOCLASE ( 2-3%)
Size(mm): 1-5
Leg : 65 Top/Bottom Interval(mm): 0/1500 Analyst: Flower, M.
Hole: 482C Sample Midpoint (m) : 176.50
Core: 15 Top of Core Depth (m) : 175.00
Sect: 1 Top of Section Depth(m): 175.00
LITHOLOGY: PLAG-AUGITE MOD PHYRIC BASALT;
Piece No. : PCES 1A (0-13), 1B (13-25), 2 (26-38), 3A (40-63),
3B (64-69), 4 (70-77), 5 (80-106), 6A (107-112),
6B (112-116), 6C (116-120), 7A (120-125),
7B (125-129), 8A (130-135), 8B (135-139),
9 (141-150);
Texture : PHYRIC, PCES 1-5 GLOMEROPHYRIC CLOTS MOSTLY PLAG
WITH SMALL AMOUNT OF AUGITE, PCES 6A-C FINE GRAINED
GLASSY TEXTURE(?=COOLING MARGIN), PCES 7-9 GRAIN
SIZE INCREASES;
Structure : PCES 6A-C SOME HAIRLINE FRACTURES BUT NO APPARENT
FILLING, SMECTITE VEIN IN PCE 9, PCE 18 FRACTURES
COATED BY SMECTITE;
Alteration : FRESH;
Comments : FRAGMENT "O"FOUND IN ARCHIVE HALF AND THEN AFTER
SPLITTING WORKING HALF, PCES 6A-C ARE DARKER, PCES 7
-9 POSSIBLY NEW COOLING UNIT-LITHOLOGY SAME AS UPPER
SECTION;
Phenocrysts: PLAGIOCLASE ( 5-10%)
Size(mm): 1-5SMECTI
PCES 1-5 PHENOS 5-10%, PCES 6A-C ARE 5% AND PCE 8
ALSO HAS SOME AUGITE PHENOS;
AUGITE
Replacement: SMECTITE
Leg : 65 Top/Bottom Interval(mm): 0/1500 Analyst: Flower, M.
Hole: 482C Sample Midpoint (m) : 178.00
Core: 15 Top of Core Depth (m) : 175.00
Sect: 2 Top of Section Depth(m): 176.50
LITHOLOGY: PLAG-AUGITE-OL MOD PHYRIC BASALT;
Piece No. : PCES 1 (0-8), 2 (11-18), 3 (21-30), 4 (30-40),
5 (40-48), 6 (50-54), 7 (55-61), 8 (63-66),
9 (76-70), 10 (75-81), 11 (83-88), 12 (90-103),
13A (104-114), 13B (112-117), 14 (118-134),
15 (125-135), 16 (135-144), 17 (145-150);
Texture : PHYRIC;
Structure : FRACTURES WITH MINOR SMECTITE COATING;
Alteration : FRESH;
Comments : LITHOLOGY CONTINUED FROM CORE 15-1;
Phenocrysts: PLAGIOCLASE ( 5%)
CLINOPYROXENE ( 5%)
OLIVINE
MICROPHENOCRYSTS;
Leg : 65 Top/Bottom Interval(mm): 0/1500 Analyst: Flower, M.
Hole: 482C Sample Midpoint (m) : 179.50
Core: 15 Top of Core Depth (m) : 175.00
Sect: 3 Top of Section Depth(m): 178.00
LITHOLOGY: PLAG-CPX-OL MOD PHYRIC BASALT;
Piece No. : PCES 1 (0-6), 2 (8-19), 3 (20-34), 4 (36-49),
5 (50-59), 6 (70-77), 7 (79-81), 8 (84-90),
9 (90-101), 10 (104-115), 11 (116-120),
12 (121-130), 13 (131-138), 14 (140-145),
15 (147-150);
Texture : PHYRIC;
Structure : MINOR SMECTITE COATINGS ON JOINTS;
Alteration : FRESH;
Comments : LITHOLOGY CONTINUED FROM CORE 15-2;
Phenocrysts: PLAGIOCLASE ( 5%)
PLAG(+OR- CPX) GLOMEROPHYRIC CLOTS;
OLIVINE
OL MICROPHENOS;
CLINOPYROXENE
Replacement: SMECTITE
Leg : 65 Top/Bottom Interval(mm): 0/1450 Analyst: Flower, M.
Hole: 482C Sample Midpoint (m) : 180.95
Core: 15 Top of Core Depth (m) : 175.00
Sect: 4 Top of Section Depth(m): 179.50
LITHOLOGY: PLAG SPARSELY PHYRIC BASALT;
Piece No. : PCES 1(0-2), 2 (3-9), 3 (10-13), 4 (15-21),
5 (22-35), 6 (35-40), 7 (41-46), 8 (47-56),
9 (58-63), 10 (65-83), 11 (84-90), 12 (92-100),
13A (101-107), 13B (107-111), 14 (112-123),
15 (124-133), 16 (135-145);
Texture : LESS PHYRIC(?) THAN 15-3;
Structure : PCE 4 FRACTURE, SMECTITE ON FRACTURE FACES AND
CALCITE, CALCITE VEIN ON PCES 7-8,
Alteration : FRESH;
Comments : LITHOLOGY CONTINUOUS FROM CORE 15-3 POSSIBLY;
Phenocrysts: PLAGIOCLASE
LAG GLOMEROCRYSTS WITH MINOR AUGITE IN CLOTS,
OLIVINE
RARE OL;
AUGITE
Replacement: SMECTITE
CALCITE
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