Leg : 59 Top/Bottom Interval(mm): 0/1180 Analyst: Zakariadze, G.
Hole: 449 Sample Midpoint (m) : 112.18
Core: 14 Top of Core Depth (m) : 111.00
Sect: 1 Top of Section Depth(m): 111.00
LITHOLOGY: PLAG-OL-SPINEL PHYRIC BASALT;
Piece No. : PCE 1 (0-7), 2 (11-17), 3 (20-22), 4 (23-38),
5A (31-36), 5B (36-42), 6 (45-48), 7 (51-58),
8 (60-69), 9 (70-74), 10 (76-81), 11 (85-90),
12 (94-98), 13 (102-106), 14 (109-117);
Texture : PLAG-OL-SPINEL PHYRIC, FRAGMENTS OF MARGINAL ZONES
OF PILLOWS WITH RIMS OF GLASS, GNDMASS IS VARIOLITIC
AND ALMOST COMPLETELY REPLACED BY YELLOWISH BROWN
SMEC, EDGES OF PILLOWS ARE BRECCIATED ANGULAR PCES
OF GLASS(0.7X1.5CM AVERAGE) REPLACED FROM OUTSIDE
WITH SMEC AND CEMENTED WITH FINE GRAINED CARB
MATRIX, GLASS FOUND ON PCES 1+4+8+11-13;
Structure : INTERPILLOW POCKETS AND RADIAL PILLOW CRACKS ARE
FILLED BY SMEC+CARB MIXTURE;
Alteration : EXT;
Comments : INTERPILLOW FILL WITH CARB MATRIX AND ALTERNATING
VOLCANIC GLASS WITH MANGANESE NODULES COMPRISE PCE
10;
Vesicles : Size(mm): 0.5-1 Percent: 3-5
IRREGULAR SCATTERED VESICLES THAT ARE MOSTLY
EMPTY;
Phenocrysts: PLAGIOCLASE ( 10%)
Size(mm): 1.5-2
ELONGATE LATHS WHICH ARE MICROPHENOS ADJACENT TO
GLASS RIMS;
OLIVINE
SPINEL
Groundmass : VARIOLITIC;
Replacement: SMECTITE
REPLACING GNDMASS;
CARBONATE
MAKES UP A CEMENT FOR PILLOWS;
Leg : 59 Top/Bottom Interval(mm): 0/ 380 Analyst: Zakariadze, G.
Hole: 449 Sample Midpoint (m) : 112.88
Core: 14 Top of Core Depth (m) : 111.00
Sect: 2 Top of Section Depth(m): 112.50
LITHOLOGY: PLAG-OL-SPINEL PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCE 1 (3-7), 2 (12-17), 3A (20-33), 3B (34-37);
Texture : PLAG-OL-SPINEL PHYRIC, GNDMASS IS HYALOPILITIC TO
INTERSERTAL AND SUBOPHITIC, PORTION OF PILLOW
INTERIOR PCE 3A, CORE IS FRAGMENTS OF PILLOW MARGINS
SAME AS CORE 14-1, FINE GRAINED PCE 3A;
Structure : SAMPLE IS TRANSECTED BY FRACTURE FILLED WITH
BRECCIATED BASALTIC GLASS CEMENTED WITH CARB;
Alteration : EXT;
Groundmass : HYALOPILITIC TO INTERSERTAL TO SUBOPHITIC, ALSO
75-85% OF GNDMASS IS XTLZED;
PLAGIOCLASE
CLINOPYROXENE
ID UNCERTAIN;
OLIVINE
ID UNCERTAIN;
GLASS
GLASS IN GNDMASS COMMONLY ALTERED AND REPLACED BY
SMEC;
Replacement: SMECTITE
REPLACING GLASS IN GNDMASS;
CARBONATE
IN FRACTURE AS CEMENT;
Leg : 59 Top/Bottom Interval(mm): 0/1500 Analyst: Zakariadze, G.
Hole: 449 Sample Midpoint (m) : 115.50
Core: 15 Top of Core Depth (m) : 114.00
Sect: 1 Top of Section Depth(m): 114.00
LITHOLOGY: PLAG-OL-SPINEL PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCE 1A (0-5), 1B (4-8), 2 (12-18), 3 (20-30),
4A (32-36), 4B (38-42), 4C (43-46), 5 (48-55),
6 (58-66), 7 (70-76), 8 (78-84), 9A (86-94),
9B (94-101), 9C (102-110), 10 (113-120),
11A (123-126), 11B (127-136), 11C (138-143),
11D (145-149);
Texture : PLAG-OL-SPINEL PHYRIC, GNDMASS IS MAINLY VARIOLITIC
TO HYALOPILITIC, ALTERED MARGINAL ZONES OF BASALTIC
PILLOWS WITH DISCONTINUOUS RIMS IS FINE GRAINED
APHYRIC TO PLAG SPARSELY MICROPHYRIC AND THE GLASS
RIMS ARE FROM 0.5-1CM THICK ALTERED TO SMEC FROM
OUTER SIDE OF PILLOWS, GLASS IS PRESENT IN PCES
1A+1B+4A+4B+6-9A+10-11D, COMMONLY BRECCIATED AND
CEMENTED WITH CARB MATRIX, SAME AS CORES 14-1 AND 2;
Structure : INTERPILLOW POCKETS AND RADIAL PILLOW CRACKS ARE
FILLED WITH FRAGMENTED GLASS AND CARB CEMENT IN
PCES 11A+11B;
Alteration : EXT;
Comments : WEATHERED PARTS ARE PALE YELLOWISH BROWN COLOR
(10YR6/2);
Vesicles : Size(mm): 0.5-1 Percent: 5-7
IRREGULAR AND MAINLY EMPTY VESICLES;
Phenocrysts: PLAGIOCLASE
SPINEL
OLIVINE
Groundmass : VARIOLITIC TO HYALOPILITIC;
Replacement: CARBONATE
AS A CEMENT FOR GLASS FRAGMENTS AND BRECCIA;
SMECTITE
Minerals Replaced: GLASS
Leg : 59 Top/Bottom Interval(mm): 0/1400 Analyst: Zakariadze, G.
Hole: 449 Sample Midpoint (m) : 116.90
Core: 15 Top of Core Depth (m) : 114.00
Sect: 2 Top of Section Depth(m): 115.50
LITHOLOGY: PLAG-OL-SPINEL PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCE 1A (0-16), 1B (17-25), 2 (27-34), 3 (36-39),
4 (41-46), 5 (48-56), 6 (59-66), 7 (69-79),
8A (81-90), 8B (90-95), 8C (95-105), 8D (106-113),
8E (114-119), 9 (121-127), 10 (130-138);
Texture : PLAG-OL-SPINEL PHYRIC, GLASS IN PCES 1A+4-8A+8C+10,
FLOW IS THE SAME TEXTURALLY AND MINERALOGICALLY AS
CORE 15-1;
Structure : PILLOWS;
Leg : 59 Top/Bottom Interval(mm): 0/1450 Analyst: Zakariadze, G.
Hole: 449 Sample Midpoint (m) : 124.95
Core: 16 Top of Core Depth (m) : 123.50
Sect: 1 Top of Section Depth(m): 123.50
LITHOLOGY: PLAG-OL-SPINEL PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCE 1 (2-5), 2 (7-14), 3A (16-18), 3B (19-22),
4A (25-30), 4B (31-38), 5A (40-45), 5B (45-49),
6A (51-60), 6B (59-64), 7 (67-73), 8A (76-84),
8B (86-89), 8C (90-93), 9 (96-99), 10A (103-109),
10B (109-112), 10C (113-116), 10D (115-120),
11 (123-128), 12A (131-134), 12B (136-139),
12C (141-144);
Texture : GNDMASS IS VARIOLITIC TO INTERSERTAL, INNER PARTS
OF PILLOWS ARE FINE GRAINED, TEXTURALLY AND
MINERALOGICALLY THE SAME AS CORE 15-2,GLASS RIMS;
Structure : FOUR PILLOWS TRANSECTED CONSECUTIVELY FROM 0-45CM
AND 45-95CM, PILLOWS ARE EXTREMELY ALTERED ON THE
INNER PARTS, INTERPILLOW BRECCIATION ASSOCIATED WITH
GLASS RIMS;
Alteration : EXT
PILLOWS ARE EXTREMELY ALTERED AND ARE MODERATE
YELLOWISH BROWN AFTER WEATHERING ALSO GNDMASS
IS VERY ALTERED;
Phenocrysts: PLAGIOCLASE ( 5%)
Size(mm): 0.3-0.5
ELONGATE LATHS PARTIALLY ALTERED AND REPLACED BY
SMEC AND FE.OXIDES;
OLIVINE
SPINEL
Groundmass : VARIOLITIC TO INTERSERTAL AND EXTREMELY ALTERED;
Replacement: SMECTITE
Minerals Replaced: PLAG
FERROUS OXIDE
Minerals Replaced: PLAG
Leg : 59 Top/Bottom Interval(mm): 0/ 450 Analyst: Zakariadze, G.
Hole: 449 Sample Midpoint (m) : 125.45
Core: 16 Top of Core Depth (m) : 123.50
Sect: 2 Top of Section Depth(m): 125.00
LITHOLOGY: PLAG-OL-SPINEL PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCE 1A (0-19), 1B (19-24), 1C (24-29), 1D (31-34),
2 (38-43);
Texture : PLAG-OL-SPINEL PHYRIC, TEXTURALLY AND
MINERALOGICALLY THE SAME AS CORE 16-1;
Leg : 59 Top/Bottom Interval(mm): 0/1500 Analyst: Ishi, Teruaki
Hole: 449 Sample Midpoint (m) : 134.50
Core: 17 Top of Core Depth (m) : 133.00
Sect: 1 Top of Section Depth(m): 133.00
LITHOLOGY: PLAG-OL-SPINEL PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCE 1 (0-11), 2 (14-19), 3 (22-26), 4 (29-35),
5 (36-50), 6 (52-56), 7A (58-66), 7B (66-72),
8A (74-79), 8B (80-86), 9A (87-94), 9B (94-100),
10 (102-116), 11 (120-123), 12 (129-134),
13 (141-146);
Texture : PLAG-OL-SPINEL PHYRIC, FINE GRAINED TOP AND BOTTOM
OF SECTION AND COARSE GRAINED IN MIDDLE OF SECTION,
GLASS ZONE DARK GREY TO BLACK ABOUT 8MM THICK IN
PCE 1 FOLLOWED BY A GREY VARIOLITIC ZONE ABOUT 5MM
THICK BELOW GLASS, XTLN INTERIOR IN PCES 4-9A, PALE
BROWN TRANSITION ZONE (CHILLED ZONE) WHERE QUENCH
XTLS ARE OBSERVED IN PCE 1 ALSO PALE BROWN
TRANSITION ZONE OBSERVED IN PCE 10, GLASS IS PRESENT
IN PCE 11, TEXTURALLY AND MINERALOGICALLY THE SAME
AS PREVIOUS SECTION 16-2;
Structure : PILLOWS;
Alteration : EXT
PCES 1-3 AND PCES 11-13 AND LOWER HALF PCE 10;
MOD
PCES 4-9B AND UPPER HALF OF PCE 10;
Leg : 59 Top/Bottom Interval(mm): 0/1150 Analyst: Ishi, Teruaki
Hole: 449 Sample Midpoint (m) : 135.65
Core: 17 Top of Core Depth (m) : 133.00
Sect: 2 Top of Section Depth(m): 134.50
LITHOLOGY: PLAG-CPX PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCE 1A (0-13), 1B (14-22), 1C (21-28), 2A (30-33),
2B (34-37), 3 (40-50), 4A (51-59), 4B (60-65),
5A (66-70), 5B (73-75), 6A (77-89), 6B (89-96),
6C (99-113);
Texture : PLAG-CPX PHYRIC, COARSE GRAINED FROM 0-50CM, QUENCH
ZONE WITH QUENCH XTLS IN PCES 4A-B, INTERSERTAL TO
HYALOPILITIC GNDMASS;
Structure : PILLOWS, MAY BE PART OF BIG PILLOW OR FLOW INTERIOR
FOR PCES 1A-C;
Alteration : MOD
PCES 1A-3;
EXT
PCES 3-6C;
Vesicles : Size(mm): 0.5-4 Percent: <5
Location: Filling: CLAY.MINS
EMPTY OR CLAY LINED FROM 4-7CM;
Phenocrysts: PLAGIOCLASE
CLINOPYROXENE
Groundmass : INTERSERTAL TO HYALOPILITIC;
Replacement: CLAY MINERALS
SOMETIMES LINES VESICLES;
Leg : 59 Top/Bottom Interval(mm): 0/ 850 Analyst: Ishi, Teruaki
Hole: 449 Sample Midpoint (m) : 143.35
Core: 18 Top of Core Depth (m) : 142.50
Sect: 1 Top of Section Depth(m): 142.50
LITHOLOGY: PLAG-CPX PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCE 1 (2-10), 2A (12-14), 2B (16-19), 3 (23-29),
4 (33-39), 5A (42-46), 5B (45-50), 6 (52-58),
7 (62-69), 8 (70-75), 9 (78-83);
Texture : PLAG-CPX PHYRIC, PILLOW MARGIN PCES 1-2B,
TEXTURALLY AND MINERALOGICALLY THE SAME AS PREVIOUS
SECTION OF CORE 17-2, FINE GRAINED PCES 1-2B,
COARSE GRAINED PCES 3-9;
Structure : PILLOWS, PILLOW INTERIOR REPRESENTED BY PCES 3-9;
Alteration : FRESH;
|
