Leg : 63 Top/Bottom Interval(mm): 0/ 600 Analyst: Shibata, T.
Hole: 470A Sample Midpoint (m) : 167.10
Core: 7 Top of Core Depth (m) : 166.50
Sect: 1 Top of Section Depth(m): 166.50
LITHOLOGY: SEDIMENT;
Leg : 63 Top/Bottom Interval(mm): 600/1450 Analyst: Shibata, T.
Hole: 470A Sample Midpoint (m) : 167.95
Core: 7 Top of Core Depth (m) : 166.50
Sect: 1 Top of Section Depth(m): 167.10
LITHOLOGY: APHYRIC TO OL SPARSELY PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1 (61-64), 2 (66-73), 3 (77-83), 4 (85-90),
5A (92-105), 5B (105-110), 5C (110-120),
5D (120-133), 5E (133-143);
Texture : INCREASED GRAINSIZE TOWARD CORE BASE;
Structure : FRACTURES SOMETIMES FILLED WITH CALCITE & CLAY,
MASSIVE;
Alteration : MOD
Comments : COLOR MEDIUM-DARK GRAY (N4) BECOMING BROWNISH-GRAY
ALONG FRACTURES;
Phenocrysts: OLIVINE
Size(mm): <1
PCE 5;
Replacement: CALCITE
CLAY
Leg : 63 Top/Bottom Interval(mm): 0/1500 Analyst: Pisciotto, K.
Hole: 470A Sample Midpoint (m) : 169.50
Core: 7 Top of Core Depth (m) : 166.50
Sect: 2 Top of Section Depth(m): 168.00
LITHOLOGY: APHYRIC TO OL SPARSELY PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1A (1-12), 1B (12-19), 1C (20-22), 1D (22-28),
2 (32-37), 3A (40-51), 3B (50-58), 4A (61-70),
4B (71-79), 4C (79-87), 4D (87-91), 4E (89-100),
4F (100-119), 4G (120-138), 5 (142-148);
Texture : GLASSY MARGIN BLENDS INTO A BROWNISH
APHANITIC ZONE(<2 OR 3CM) & THEN INTO A FINE-GRAINED
PHYRIC PILLOW INTERIOR;
Structure : PILLOW SEQUENCE,FRACTURED WITH SOME CLAY & CALCITE
FILLING,BASALT BROWNISH ALONG FRACTURES,MASSIVE;
Alteration : MOD
Phenocrysts: OLIVINE
GREENISH ALTERED OL;
Replacement: CALCITE
CLAY
Leg : 63 Top/Bottom Interval(mm): 0/1400 Analyst: Pisciotto, K.
Hole: 470A Sample Midpoint (m) : 170.90
Core: 7 Top of Core Depth (m) : 166.50
Sect: 3 Top of Section Depth(m): 169.50
LITHOLOGY: APHYRIC TO OL SPARSELY PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1A (1-10), 1B (10-20), 1C (20-41), 1D (41-49),
2A (51-59), 2B (60-69), 2C (70-84), 2D (80-93),
3 (95-104), 4 (105-113), 5 (116-124), 6 (126-137);
Texture : GLASSY MARGIN GRADES INTO A BROWNISH
APHANITIC ZONE & THEN INTO A FINE-GRAINED & PHYRIC
PILLOW INTERIOR,PCE 6 HAS GLASSY MARGIN WITH
LIMESTONE INCLUDED;
Structure : FRACTURED WITH SOME CLAY & CALCITE FILLING,MASSIVE;
Alteration : MOD
Comments : BASALT BROWNISH ALONG THE FRACTURES,OTHERWISE BASALT
IS MEDIUM-DARK GRAY (N4),PCE 6 LIMESTONE IS
GREENISH-GRAY(5G8/1);
Phenocrysts: OLIVINE
GREENISH ALTERED OL;
Replacement: CALCITE
CLAY
Leg : 63 Top/Bottom Interval(mm): 0/1400 Analyst: Crouch, J.
Hole: 470A Sample Midpoint (m) : 172.40
Core: 8 Top of Core Depth (m) : 171.00
Sect: 1 Top of Section Depth(m): 171.00
LITHOLOGY: APHYRIC TO OL SPARSELY PHYRIC BASALT;
PILLOW BASALT;
PCES 5A & 5B ARE LIMESTONE;
Piece No. : PCES 1 (1-6), 2A (8-15), 2B (15-26), 2C (41-49),
2D (34-44), 2E (44-49), 3A (51-54), 3B (54-68),
3C (68-77), 3D (77-84), 4A (86-90), 4B (90-94),
5A (96-100), 5B (97-100), 6A (103-112),
6B (112-125), 6C (125-132), 6D (132-140);
Texture : GRAINSIZE GENERALLY INCREASES TO THE CENTER
OF PILLOWS,GLASSY MARGINS GRADE INTO BROWNISH
APHANITIC ZONE & THEN INTO FINE-GRAINED PHYRIC
PILLOW INTERIOR,TEXTURE & COMPOSITION SIMILAR TO
CORE 7-1;
Structure : PILLOW SEQUENCE,FRACTURED WITH SOME CALCITE & CLAY
FILLING,MASSIVE;
Alteration : MOD
Comments : MEDIUM-DARK GRAY(N4);
Phenocrysts: OLIVINE
OL PHENOS ALTERED;
Replacement: CALCITE
CLAY
Leg : 63 Top/Bottom Interval(mm): 0/1450 Analyst:
Hole: 470A Sample Midpoint (m) : 173.95
Core: 8 Top of Core Depth (m) : 171.00
Sect: 2 Top of Section Depth(m): 172.50
LITHOLOGY: APHYRIC TO OL SPARSELY PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1A (1-16), 1B (17-20), 1C (20-25), 1D (25-47),
1E (48-56), 1F (56-68), 1G (69-81), 1H (81-87),
1I (87-95), 1J (96-106), 2A (110-112), 2B (114-117),
2C (117-119), 2D (120-123), 2E (125-128),
3 (131-145);
Texture : GRAINSIZE GENERALLY INCREASES TOWARDS
CENTERS OF PILLOWS,GLASSY MARGINS GRADE INTO
SLIGHTLY BROWNISH APHANITIC ZONE & THEN INTO FINE-
GRAINED PHYRIC PILLOW INTERIOR;
Structure : FRACTURED WITH SOME CALCITE & CLAY FILLING,MASSIVE;
Alteration : MOD
Comments : MEDIUM-DARK GRAY COLOR(N4);
Phenocrysts: OLIVINE
ALTERED GREENISH PHENOS;
Replacement: CALCITE
CLAY
Leg : 63 Top/Bottom Interval(mm): 0/1400 Analyst: Crouch, J.
Hole: 470A Sample Midpoint (m) : 175.40
Core: 8 Top of Core Depth (m) : 171.00
Sect: 3 Top of Section Depth(m): 174.00
LITHOLOGY: APHYRIC TO OL SPARSELY PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1A (1-5), 1B (6-11), 1C (11-19), 2A (21-46),
2B (41-65), 2C (66-74), 3A (76-85), 3B (85-94),
3C (94-101), 3D (101-109), 4 (111-124),
5A (126-131), 5B (131-137);
Texture : GRAINSIZE GENERALLY INCREASES TO CENTERS OF
PILLOWS,GLASSY MARGINS GRADE INTO A SLIGHTLY
BROWNISH APHANITIC ZONE & THEN INTO A FINE-TO-MEDIUM
-GRAINED PHYRIC PILLOW INTERIOR;
Structure : FRACTURED WITH SOME CALCITE & CLAY FILLING,MASSIVE;
Alteration : MOD
ALTERATION ZONE ALONG FRACTURES (<1CM);
Comments : MEDIUM-DARK GRAY COLOR(N4);
Phenocrysts: OLIVINE
GREENISH & ALTERED,SCATTERED THROUGHOUT PILLOW
INTERIOR;
Replacement: CALCITE
CLAY
Leg : 63 Top/Bottom Interval(mm): 0/1500 Analyst: Leinen, M.
Hole: 470A Sample Midpoint (m) : 177.00
Core: 8 Top of Core Depth (m) : 171.00
Sect: 4 Top of Section Depth(m): 175.50
LITHOLOGY: APHYRIC TO OL SPARSELY PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1 (2-10), 2 (13-19), 3A (22-31), 3B (31-47),
3C (46-56), 4 (59-61), 5A (65-74), 5B (75-81),
5C (81-88), 5D (88-99), 5E (100-106), 5F (106-115),
5G (115-130), 5H (131-140), 6 (142-147);
Texture : GLASSY MARGINS GRADE INTO A SLIGHTLY
BROWNISH ZONE THAT USUALLY SHOWS A VARIOLITIC TO
SUB-VARIOLITIC TEXTURE,PCES 1-3+6 ARE APHANITIC &
PHYRIC,PCE 5 MEDIUM-GRAINED & PHYRIC;
Structure : FRACTURED WITH SOME CALCITE & CLAY FILLING,MASSIVE;
Alteration : MOD
ALTERATION ZONE ALONG FRACTURES,ALTERED PHENOS IN
PCE 5;
Comments : MEDIUM-DARK GRAY(N4);
Phenocrysts: OLIVINE
Size(mm): <1
GREENISH & ALTERED,IN PCE 5;
Replacement: CALCITE
CLAY
Phenocrysts: OLIVINE
Size(mm): <1
GREENISH & ALTERED;
Replacement: CALCITE
CLAY
Leg : 63 Top/Bottom Interval(mm): 0/1450 Analyst: Leinen, M.
Hole: 470A Sample Midpoint (m) : 178.45
Core: 8 Top of Core Depth (m) : 171.00
Sect: 5 Top of Section Depth(m): 177.00
LITHOLOGY: APHYRIC TO OL SPARSELY PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1A (2-11), 1B (11-29), 1C (29-35), 2A (36-44),
2B (44-59), 3A (60-65), 3B (65-72), 4 (74-85),
5 (88-95), 6 (97-102), 7A (104-112), 7B (108-116),
8 (119-130), 9 (132-142);
Texture : GRAINSIZE GENERALLY INCREASES AWAY FROM
GLASSY PILLOW MARGINS,GLASSY MARGINS GRADE INTO A
SLIGHTLY BROWNISH APHANITIC ZONE THAT USUALLY SHOWS
VARIOLITIC TO SUB-VARIOLITIC TEXTURE,PHYRIC PILLOW
INTERIORS;
Structure : FRACTURES FILLED WITH CALCITE & CLAY,MASSIVE;
Alteration : MOD
ALTERED PHENOS;
Comments : MEDIUM-DARK GRAY(N4);
Phenocrysts: OLIVINE
Size(mm): <1
GREENISH & ALTERED;
Replacement: CALCITE
CLAY
Leg : 63 Top/Bottom Interval(mm): 0/1450 Analyst: Shibata, T.
Hole: 470A Sample Midpoint (m) : 181.95
Core: 9 Top of Core Depth (m) : 180.50
Sect: 1 Top of Section Depth(m): 180.50
LITHOLOGY: APHYRIC TO OL SPARSELY PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1 (0-20), 2 (23-24), 3A (26-40), 3B (40-51),
4 (52-56), 5A (58-64), 5B (64-70), 5C (68-77),
6A (78-80), 6B (80-86), 7A (88-98), 7B (99-107),
8A (111-116), 8B (115-123), 8C (123-131),
8D (131-141);
Texture : GRAINSIZE GENERALLY INCREASES AWAY FROM
GLASSY MARGINS,GLASSY MARGINS GRADE INTO A SLIGHTLY
BROWNISH APHANITIC ZONE & THEN INTO FINE-TO-MEDIUM
PHYRIC PILLOW INTERIOR;
Structure : THIN VEINS(<1CM) FILLED WITH CALCITE & CLAY,MASSIVE;
Alteration : MOD
ALTERED PHENOS,BROWNISH ALTERATION BANDS ALONG
VEINS;
Comments : MEDIUM-DARK GRAY(N4);
Phenocrysts: OLIVINE
Size(mm): <1
GREENISH & ALTERED;
Replacement: CALCITE
CLAY
Vesicles : PCES 1 & 3A LOCALLY VESICULAR;
Leg : 63 Top/Bottom Interval(mm): 0/1400 Analyst: Crouch, J.
Hole: 470A Sample Midpoint (m) : 183.40
Core: 9 Top of Core Depth (m) : 180.50
Sect: 2 Top of Section Depth(m): 182.00
LITHOLOGY: APHYRIC TO OL SPARSELY PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1 (1-12), 2 (14-17), 3A (20-29), 3B (29-40),
3C (39-59), 3D (60-64), 3E (65-70), 3F (70-74),
3G (74-80), 3H (80-90), 3I (88-92), 3J (92-95),
4 (97-107), 5 (110-124), 6A (125-128), 6B (129-136);
Texture : GRAINSIZE GENERALLY INCREASES AWAY FROM
GLASSY MARGINS,GLASSY MARGINS GRADE INTO A SLIGHTLY
BROWNISH APHANITIC ZONE & THEN INTO FINE-TO-MEDIUM-
GRAINED INTERIOR;
Structure : INTERVAL 0-100CM PILLOW SEQUENCE WITH ANOTHER FROM
100-140CM,FRACTURED THROUGHOUT WITH CALCITE & CLAY
FILLING,MASSIVE;
Alteration : MOD
ALTERED PHENOS,MINOR ALTERATION AROUND FRACTURES;
Comments : MEDIUM-DARK GRAY(N4);
Phenocrysts: OLIVINE
Size(mm): <1
GREENISH & ALTERED;
Replacement: CALCITE
CLAY
Leg : 63 Top/Bottom Interval(mm): 0/1400 Analyst: Crouch, J.
Hole: 470A Sample Midpoint (m) : 184.90
Core: 9 Top of Core Depth (m) : 180.50
Sect: 3 Top of Section Depth(m): 183.50
LITHOLOGY: BASALT;
Piece No. : PCES 1 (1-6), 2 (9-22), 3A (25-29), 3B (29-34),
3C (34-38), 4A (40-46), 4B (46-55), 4C (56-67),
4D (66-72), 4E (72-78), 4F (78-88), 4G (88-109),
4H (108-125), 4I (124-139);
Texture : PHYRIC,SLIGHT GRAINSIZE INCREASE BETWEEN
0-37CM,PCES 4A-4I MEDIUM-GRAINED;
Structure : FRACTURED WITH CALCITE FILLING,MASSIVE;
Alteration : MOD
Comments : MEDIUM-DARK GRAY(N4);
Vesicles : Size(mm): <2 Percent:
Location: SCATTERED Filling: CALCITE
Replacement: CALCITE
Leg : 63 Top/Bottom Interval(mm): 0/1450 Analyst: Leinen, M.
Hole: 470A Sample Midpoint (m) : 186.45
Core: 9 Top of Core Depth (m) : 180.50
Sect: 4 Top of Section Depth(m): 185.00
LITHOLOGY: BASALT;
Piece No. : PCES 1A (0-30), 1B (30-37), 1C (35-45), 1D (42-59),
1E (59-65), 1F (65-73), 2 (74-76), 3 (78-83),
4 (84-88), 5A (89-98), 5B (99-108), 6 (109-113),
7A (115-121), 7B (121-130), 7C (130-133),
8 (135-144);
Texture : PHANERITIC,PCES 2-4 FINE-GRAINED,PCES 1A-1F+
5A-8 ARE FINE-TO-MEDIUM-GRAINED,INTERVAL 0-73CM IS
SIMILAR TO LOWER PART OF CORE 9-3;
Structure : FRACTURED WITH CALCITE FILLING,MASSIVE;
Alteration : MOD
Comments : MEDIUM-DARK GRAY(N4);
Replacement: CALCITE
Leg : 63 Top/Bottom Interval(mm): 0/1450 Analyst: Crouch, J.
Hole: 470A Sample Midpoint (m) : 187.95
Core: 9 Top of Core Depth (m) : 180.50
Sect: 5 Top of Section Depth(m): 186.50
LITHOLOGY: BASALT;
Piece No. : PCES 1A (1-9), 1B (6-13), 1C (14-22), 2 (25-32),
3A (35-44), 3B (44-53), 4 (56-60), 5 (63-73),
6 (76-84), 7A (87-96), 7B (97-100), 7C (100-110),
8 (112-131), 9 (133-143);
Texture : PHYRIC,FINE-TO-MEDIUM-GRAINED,SIMILAR
COMPOSITION & TEXTURE TO CORE 9-3;
Structure : CALCITE-FILLED FRACTURES,MASSIVE;
Alteration : MOD
EXTENSIVELY
PCE 8;
Comments : MEDIUM-DARK GRAY(N4);
Replacement: CALCITE
Leg : 63 Top/Bottom Interval(mm): 0/1100 Analyst:
Hole: 470A Sample Midpoint (m) : 190.60
Core: 10 Top of Core Depth (m) : 189.50
Sect: 1 Top of Section Depth(m): 189.50
LITHOLOGY: BASALT;
PILLOW BASALT;
Piece No. : PCES 1 (3-10), 2 (14-19), 3 (22-26), 4 (30-38),
5 (42-46), 6 (48-53), 7 (55-60), 8A (63-75),
8B (76-81), 9 (84-88), 10 (92-95), 11 (98-101),
12 (104-110);
Texture : BASALTIC FLOW FRAGMENTS,PHYRIC,FINE-TO-
MEDIUM-GRAINED,PCES 6-9 ARE COARSER-GRAINED &
SIMILAR TO CORE 9-3,PCES 10+11 APHYRIC & APHANITIC
BASALT FRAGMENTS;
Structure : PILLOWS,CALCITE-FILLED FRACTURES COMMON,MASSIVE;
Alteration : MOD
Comments : MEDIUM-DARK GRAY(N4);
Replacement: CALCITE
Leg : 63 Top/Bottom Interval(mm): 0/ 850 Analyst: Leinen, M.
Hole: 470A Sample Midpoint (m) : 195.35
Core: 11 Top of Core Depth (m) : 194.50
Sect: 1 Top of Section Depth(m): 194.50
LITHOLOGY: APHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1 (3-6), 2 (11-14), 3 (17-23), 4A (26-33),
4B (33-36), 5 (39-42), 6 (44-51), 7 (52-59),
8 (60-67), 9 (69-75), 10 (76-84);
Texture : APHANITIC,FINE-GRAINED,PCES 1+2+8 SHOW
CHILLED MARGIN MORPHOLOGY;
Structure : PILLOW,MASSIVE;
Alteration : MOD
Comments : MEDIUM-DARK GRAY;
Leg : 63 Top/Bottom Interval(mm): 0/ 70 Analyst: Crouch, J.
Hole: 470A Sample Midpoint (m) : 198.57
Core: 12 Top of Core Depth (m) : 198.50
Sect: 1 Top of Section Depth(m): 198.50
LITHOLOGY: SEDIMENT;
Leg : 63 Top/Bottom Interval(mm): 1300/1370 Analyst: Crouch, J.
Hole: 470A Sample Midpoint (m) : 199.87
Core: 12 Top of Core Depth (m) : 198.50
Sect: 1 Top of Section Depth(m): 199.80
LITHOLOGY: SEDIMENT;
Leg : 63 Top/Bottom Interval(mm): 240/ 370 Analyst: Crouch, J.
Hole: 470A Sample Midpoint (m) : 198.87
Core: 12 Top of Core Depth (m) : 198.50
Sect: 1 Top of Section Depth(m): 198.74
LITHOLOGY: SEDIMENT;
COCCOLITH LIMESTONE;
Piece No. : PCES 3A (25-27), 3B (27-30), 3C (31-34),
3D (34-37);
Leg : 63 Top/Bottom Interval(mm): 70/1300 Analyst: Crouch, J.
Hole: 470A Sample Midpoint (m) : 199.80
Core: 12 Top of Core Depth (m) : 198.50
Sect: 1 Top of Section Depth(m): 198.57
LITHOLOGY: APHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1 (9-13), 2 (16-23), 4 (40-43), 5 (47-53),
6A (55-66), 6B (68-75), 6C (75-83), 7 (85-93),
8 (95-107), 9 (109-115), 10 (119-127);
Texture : APHANITIC,FINE-GRAINED,PCES 2+3+5 SHOW CHILLED
MARGIN MORPHOLOGY;
Structure : PILLOW;
Alteration : MOD
Comments : MEDIUM-DARK GRAY(N4);
Leg : 63 Top/Bottom Interval(mm): 0/ 900 Analyst: Pisciotto, K.
Hole: 470A Sample Midpoint (m) : 208.40
Core: 13 Top of Core Depth (m) : 207.50
Sect: 1 Top of Section Depth(m): 207.50
LITHOLOGY: BASALT;
PILLOW BASALT;
Piece No. : PCES 1 (1-7), 2 (9-13), 3 (16-22), 4 (26-33),
5 (38-42), 6 (46-50), 7 (55-57), 8 (63-66),
9 (73-77), 10 (84-88);
Texture : BASALT FRAGMENTS,APHANITIC,FINE-GRAINED,
PCE 5 GLASSY FRAGMENT,PCES 1+4 MEDIUM-GRAINED
SUB-OPHITIC TO INTERSERTAL;
Structure : PILLOW,MASSIVE;
Alteration : MOD
Comments : MEDIUM-DARK GRAY(N4),PCE 10 MARKS END OF CORE;
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