Leg : 49 Top/Bottom Interval(mm): 0/ 610 Analyst: Zolotarev, B.
Hole: 410A Sample Midpoint (m) : 334.61
Core: 1 Top of Core Depth (m) : 325.00
Sect: 7 Top of Section Depth(m): 334.00
LITHOLOGY: APHYRIC BASALT;
REMOVED FROM CORE 1-6,86-104CM;
Piece No. : PCES 1 (3-10), 2 (13-16), 3 (20-25), 4 (28-30),
5 (33-37), 6 (42-46), 7 (50-55), 8 (57-61);
Texture : APHYRIC,FINE-GRAINED;
Structure : CARB VEINS IN PCES 1+6+8,SOME VEINS CONTAIN GLASS
FRAGMENTS ALTERED TO PALAG;
Alteration : MOD
ALTERATION VARIES FROM WEAK TO MOD,GLASS NEAR
VEINS ALTERED TO PALAG(PCE 1);
Vesicles : Size(mm): 0.2-1.5 Percent: 1-10
Location: Filling: CARB,SMEC
UNEVEN DISTRIBUTION THROUGH CORE,PCES WITH GLASS
ZONES CONTAIN MORE VESICLES(PCES 1+3+6-7),CARB
PARTIALLY OR ENTIRELY FILLS VESICLES,SOME VESICLE
WALLS LINED WITH BLUE-GRAY MIN(SMEC?),VESICULAR;
Phenocrysts: OLIVINE
Size(mm): <1.5
FRESH MICROPHENOS;
Replacement: SMECTITE
ID SMEC UNCERTAIN;
PALAGONITE
Minerals Replaced: GLASS
CARBONATE
Leg : 49 Top/Bottom Interval(mm): 0/1500 Analyst: Zolotarev, B.
Hole: 410A Sample Midpoint (m) : 336.00
Core: 2 Top of Core Depth (m) : 334.50
Sect: 1 Top of Section Depth(m): 334.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (3-8),2 (10-13), 3 (17-22), 4 (25-30),
5 (33-37), 6 (40-45), 7 (48-58), 8 (60-70),
9 (74-83), 10 (87-91), 11 (93-97), 12 (100-103),
13 (105-110), 14 (113-115), 15A (120-122),
15B (124-126), 16 (130-135), 17 (140-147);
Texture : APHYRIC,FINE-GRAINED,SOME ZONES OF GLASS FRACTURED
& IMPREGNATED WITH CARB(PCES 10+11)-GLASS IN THESE
PCES PARTLY ALTERED TO PALAG;
Structure : CARB VEINS IN PCES 8-9+16-17,BASALT ALTERED NEAR
VEINS;
Alteration : SLIGHTLY TO MOD;
Comments : PCES 10+11 CONTAIN BRECCIA;
Vesicles : Size(mm): 0.5-2 Percent: <15
Location: Filling: CARB,ZEOL
VESICLES DISTRIBUTED UNEVENLY,PCES 1-2+4-5+12+16
HAVE 10-15% VESICLES FILLED BY CARB & ZEOL,SOME
VESICLES PARTLY FILLED BY VOLCANIC GLASS & RIMMED
WITH SOME GLASS;
Replacement: PALAGONITE
Minerals Replaced: GLASS
CARBONATE
ZEOLITE
Leg : 49 Top/Bottom Interval(mm): 0/1450 Analyst: Zolotarev, B.
Hole: 410A Sample Midpoint (m) : 337.45
Core: 2 Top of Core Depth (m) : 334.50
Sect: 2 Top of Section Depth(m): 336.00
LITHOLOGY: BASALTIC BRECCIA;
Piece No. : PCES 1 (4-10), 18 (120-127);
Texture : APHYRIC BASALT FRAGMENTS;
Comments : VOLCANIC GLASS & APHYRIC BASALT FRACTURED TO BRECCIA
& IMPREGNATED WITH CARB;
Replacement: CARBONATE
Leg : 49 Top/Bottom Interval(mm): 0/1450 Analyst: Zolotarev, B.
Hole: 410A Sample Midpoint (m) : 337.45
Core: 2 Top of Core Depth (m) : 334.50
Sect: 2 Top of Section Depth(m): 336.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 2 (15-20), 3 (23-26), 4 (29-31), 5 (34-36),
6 (39-41), 7 (44-46), 8 (49-53), 9 (55-58),
10 (60-63), 11 (66-70), 12 (73-76), 13 (80-83),
14 (88-91), 15 (94-97), 16 (101-105), 17 (110-116),
19 (130-135), 20A (140-143), 20B (143-145);
Texture : APHYRIC,FINE-GRAINED,PCES 2+8-13+19-20A HAVE ZONES
OF VOLCANIC GLASS & SOME OF THESE ZONES HAVE BEEN
FRACTURED TO BRECCIA & IMPREGNATED WITH CARB,SOME
FRAGMENTS OF THESE GLASSY ZONES HAVE BEEN PARTIALLY
ALTERED TO PALAG;
Structure : CARB VEINS IN PCES 3+16-17;
Alteration : SLIGHTLY TO MOD;
Comments : PCE 3 IS LIMESTONE OR CARB FROM VEIN OF CARB &
CONTAINS FRAGMENTS OF VOLCANIC GLASS(ALTERED TO
PALAG),SIZE OF FRAGMENTS APPROXIMATELY 1CM;
Vesicles : Size(mm): 0.5-3 Percent: 1-10
Location: Filling: CARB,ZEOL
Replacement: ZEOLITE
CARBONATE
PALAGONITE
Minerals Replaced: GLASS
Leg : 49 Top/Bottom Interval(mm): 0/1400 Analyst: Zolotarev, B.
Hole: 410A Sample Midpoint (m) : 338.90
Core: 2 Top of Core Depth (m) : 334.50
Sect: 3 Top of Section Depth(m): 337.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (4-8), 2 (11-14), 3 (17-20), 4 (22-26),
5 (29-37), 6 (40-43), 7 (49-54), 8 (57-63),
9 (67-72), 10 (77-80), 11 (83-92), 12 (95-100),
13 (102-110), 14 (113-117), 15 (121-125),
16 (130-132), 17 (135-139);
Texture : APHYRIC,FINE-GRAINED,PCES 2+6-7 HAVE GLASS ZONES,
PCES 13+16 GLASS & HAVE FRAGMENTS OF CARB;
Structure : PCE 6 GLASS IS FRACTURED & IMPREGNATED WITH CARB;
Alteration : SLIGHTLY TO MOD
BASALT NEAR CARB VEINS MORE ALTERED;
Vesicles : Size(mm): Percent: <10
Location: Filling: CARB,GLASS
PCES 1+3+7+11 ARE MORE VESICULAR;
Groundmass : GLASS
Replacement: CARBONATE
Leg : 49 Top/Bottom Interval(mm): 0/1400 Analyst: Zolotarev, B.
Hole: 410A Sample Midpoint (m) : 340.40
Core: 2 Top of Core Depth (m) : 334.50
Sect: 4 Top of Section Depth(m): 339.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (3-9), 2 (13-21), 3 (24-31), 4 (34-41),
5 (45-49), 6 (53-65), 7 (70-72), 8 (74-80),
9 (83-86), 10 (91-94), 11 (97-106), 12 (109-111),
13 (115-119), 14 (122-126), 15 (130-139);
Texture : APHYRIC,FINE-GRAINED,PCES 8+13+14 HAVE GLASS ZONES,
SOME ZONES ARE FRACTURED & IMPREGNATED WITH CARB,
GLASS NEAR CARB PARTLY ALTERED TO PALAG;
Structure : CARB VEINS IN PCES 2+6+7+13+14,FRACTURED GLASS
ZONES;
Alteration : SLIGHTLY TO MOD;
Vesicles : Size(mm): 0.5-2 Percent: 1-10
Location: Filling: CARB,ZEOL
MOST COMMONLY 1% & 0.5MM,PCES 8-15 CONTAIN 5-10%
& 1-2MM,PARTLY FILLED WITH CARB & ZEOL(RADIAL AGG
LIKE ZEOL);
Phenocrysts: OLIVINE ( RARE%)
RARE OL MICROPHENOS;
Replacement: CARBONATE
ZEOLITE
PALAGONITE
Minerals Replaced: GLASS
Leg : 49 Top/Bottom Interval(mm): 0/1100 Analyst: Zolotarev, B.
Hole: 410A Sample Midpoint (m) : 341.60
Core: 2 Top of Core Depth (m) : 334.50
Sect: 5 Top of Section Depth(m): 340.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (2-9), 2 (12-17), 3 (20-25), 4 (28-30),
5 (32-34), 6 (37-41), 7 (44-47), 8 (49-57),
60-67-86), 10 (70-75), 11 (78-82), 12 (85-90),
13 (93-100), 14A (103-106), 14B (107-109);
Texture : APHYRIC,FINE-GRAINED,PCES 2+3 HAVE GLASS ZONES;
Structure : CARB VEINS IN PCES 1-3+9-10;
Alteration : SLIGHTLY TO MOD;
Vesicles : Size(mm): 0.5-1.5 Percent: 5-10
Location: Filling: CARB
PCES 1-7;
Size(mm): 0.1 Percent: 1
Location: Filling: CARB
PCES 8-14;
Groundmass : GLASS
PARTLY ALTERED TO PALAG;
Replacement: CARBONATE
PALAGONITE
Minerals Replaced: GLASS
Leg : 49 Top/Bottom Interval(mm): 0/1420 Analyst: Zolotarev, B.
Hole: 410A Sample Midpoint (m) : 345.42
Core: 3 Top of Core Depth (m) : 344.00
Sect: 1 Top of Section Depth(m): 344.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1A (3-6), 1B (7-9), 2 (2-5), 3 (20-28),
4 (30-35), 5 (38-45), 6 (47-51), 7 (55-58),
8 (61-65), 9 (68-79), 10 (82-85), 11 (88-93),
12 (97-105), 13 (109-115), 14A (118-121),
14B (120-122), 15 (125-128), 16 (131-136),
17 (139-142);
Texture : APHYRIC,FINE-GRAINED,GLASS ZONES IN PCES 6+11-13+16;
Structure : CARB VEINS IN PCES 1A-1B+3+11-13,SOME GLASS ZONES
FRACTURED & IMPREGNATED WITH CARB;
Alteration : SLIGHTLY TO MOD
GLASS NEAR CARB ALTERED TO PALAG;
Vesicles : Size(mm): 0.5-1.5 Percent: 10-15
Location: Filling: CARB
PCES 1+6-7+11-16;
Size(mm): 0.5-1.5 Percent: 1
Location: Filling: CARB
REMAINING PCES,SOME VESICLES PARTLY FILLED BY CARB
& SOME ARE LINED WITH BLUE-GRAY MINERAL(SMEC?);
Phenocrysts: OLIVINE ( RARE%)
MICROPHENOS;
Replacement: CARBONATE
PALAGONITE
Minerals Replaced: GLASS
SMECTITE
ID SMEC UNCERTAIN;
Leg : 49 Top/Bottom Interval(mm): 0/1460 Analyst: Zolotarev, B.
Hole: 410A Sample Midpoint (m) : 346.96
Core: 3 Top of Core Depth (m) : 344.00
Sect: 2 Top of Section Depth(m): 345.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1A (2-7), 1B (8-10), 1C (10-15), 2 (20-22),
3 (26-30), 4 (33-36), 5 (39-41), 6 (44-50),
7 (53-60), 8 (63-66), 9 (71-77), 10 (79-81),
11 (84-86), 12 (89-91), 13A (95-105), 13B (105-106),
14 (109-120), 15A (123-126), 15B (127-133),
15C (134-137), 16 (140-146);
Texture : APHYRIC,FINE-GRAINED;
Structure : CARB VEINS IN PCES 1+6-10+12-13+15;
Alteration : SLIGHTLY TO MOD
BASALT NEAR VEINS MORE ALTERED;
Vesicles : Size(mm): TO 2 Percent: 5
Location: Filling: CARB
PCES 3-5+7-9;
Size(mm): <0.2 Percent: 1
Location: Filling: CARB
VESICLES ARE PARTLY FILLED BY CARB;
Replacement: CARBONATE
Leg : 49 Top/Bottom Interval(mm): 0/1450 Analyst: Zolotarev, B.
Hole: 410A Sample Midpoint (m) : 348.45
Core: 3 Top of Core Depth (m) : 344.00
Sect: 3 Top of Section Depth(m): 347.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1A (3-9), 1B (10-12), 2 (15-20), 3 (23-30),
4 (33-37), 5 (40-44), 6 (46-56), 7A (59-70),
7B (70-85), 7C (85-88), 8 (90-94), 9 (99-103),
10A (106-111), 10B (112-127), 11 (130-137),
12A (140-142), 12B (142-145);
Texture : APHYRIC,FINE-GRAINED;
Structure : SEVERAL PCES CONTAIN FRACTURES & FILLED WITH CARB;
Alteration : SLIGHTLY TO MOD
BASALT NEAR VEINS MORE ALTERED;
Vesicles : Size(mm): 0.1-0.3 Percent: 1-5
Location: Filling: CARB
RARE VESICLES UP TO 0.5MM,SOME VESICLES PARTLY
FILLED BY CARB;
Replacement: CARBONATE
Leg : 49 Top/Bottom Interval(mm): 0/1350 Analyst: Zolotarev, B.
Hole: 410A Sample Midpoint (m) : 349.85
Core: 3 Top of Core Depth (m) : 344.00
Sect: 4 Top of Section Depth(m): 348.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (3-6), 2A (9-14), 2B (8-11), 3 (18-21),
4 (25-27), 5 (29-31), 6 (33-36), 7 (39-41),
8 (44-46), 9A (48-50), 9B (51-52), 10 (55-58),
11 (60-64), 12A (66-71), 12B (72-76), 13A (79-82),
13B (83-85), 14 (87-90), 15 (93-96), 16 (100-105
17 (107-110), 18 (114-116), 19 (119-120),
20A (123-125), 20B (125-128), 21 (132-134);
Texture : APHYRIC,FINE-GRAINED,GLASSY ZONES ON PCES 1+2A+5-6+
14;
Structure : CARB VEINS IN PCES 12+13,PCES 9+12-14+16 CONTAIN
FRACTURES FILLED WITH CARB,GLASS ZONES IMPREGNATED
WITH CARB
Alteration : SLIGHTLY TO MOD
GLASS NEAR CARB ALTERED TO PALAG IN PCES 2A+6+14;
Vesicles : Size(mm): 0.2-3 Percent: 10-15
Location: Filling: CARB,ZEOL
PCES 1+2+8-9+12+14-15 PARTLY FILLED BY CARB & ZEOL
(RADIAL AGG?),SOME VESICLES LINED WITH BLUE-GRAY
MINERAL(SMEC?);
Replacement: CARBONATE
ZEOLITE
SMECTITE
ID SMEC UNCERTAIN;
Leg : 49 Top/Bottom Interval(mm): 0/ 450 Analyst: Zolotarev, B.
Hole: 410A Sample Midpoint (m) : 350.45
Core: 3 Top of Core Depth (m) : 344.00
Sect: 5 Top of Section Depth(m): 350.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (3-5), 2 (9-11), 3 (14-16), 4 (20-22),
5A (25-28), 5B (30-33), 5C (35-38), 6 (41-45);
Texture : APHYRIC,FINE-GRAINED;
Structure : CARB VEINS IN PCES 4+5A-5C;
Alteration : SLIGHTLY TO MOD
Vesicles : Size(mm): 0.1-1 Percent: 1-2
Location: Filling: CARB,ZEOL
SOME VESICLES LINED WITH BLUE-GRAY MINERAL(SMEC?),
VESICULAR;
Replacement: CARBONATE
ZEOLITE
SMECTITE
ID SMEC UNCERTAIN;
Leg : 49 Top/Bottom Interval(mm): 0/1420 Analyst: Zolotarev, B.
Hole: 410A Sample Midpoint (m) : 354.92
Core: 4 Top of Core Depth (m) : 353.50
Sect: 1 Top of Section Depth(m): 353.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1A (3-5), 1B (6-11), 1C (12-15), 2 (20-23),
3A (27-31), 3B (31-35), 4A (40-45), 4B (47-54),
5 (59-61), 6 (63-68), 7 (73-75), 8 (78-82),
9 (85-93), 10 (95-100), 11 (103-106), 12 (109-111),
13 (115-117), 14 (120-122), 15 (125-128),
16 (130-134), 17 (138-142);
Texture : APHYRIC,FINE-GRAINED,GLASS ZONES IN PCES 14-16;
Structure : CARB VEINS IN PCES 1B+3A-3B+4B+10;
Alteration : SLIGHTLY TO MOD
Vesicles : Size(mm): 0.3-2 Percent: 10-15
Location: Filling: CALCITE,SMEC
PCES 1+2+6-9+15-16;
Size(mm): 0.3-2 Percent: 0.5-1
Location: Filling: CALCITE,SMEC
REMAINING PCES,SOME LINED WITH BLUE-GRAY MINERAL
(SMEC?);
Replacement: CARBONATE
SMECTITE
PALAGONITE
Minerals Replaced: GLASS
ESPECIALLY ALTERED NEAR CARB VEINS;
Leg : 49 Top/Bottom Interval(mm): 0/1500 Analyst: Zolotarev, B.
Hole: 410A Sample Midpoint (m) : 356.50
Core: 4 Top of Core Depth (m) : 353.50
Sect: 2 Top of Section Depth(m): 355.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (3-5), 2 (7-10), 3 (7-16), 4 (18-21),
5 (24-27), 6 (27-31), 7 (34-37), 8 (40-42),
9 (45-47), 10 (50-53), 11 (55-60), 12 (63-67),
13 (70-72), 14 (75-78), 15 (80-88), 16 (90-98),
17 (100-103), 18 (105-109), 19 (112-123),
20 (125-127), 21 (130-132), 22 (135-138),
23 (140-148);
Texture : APHYRIC,FINE-GRAINED,GLASS ZONES IN PCES 2+10+12
PARTLY ALTERED TO PALAG;
Structure : CARB VEINS IN PCES 7-9+16+20;
Alteration : SLIGHTLY TO MOD
MORE ALTERED NEAR CARB VEINS;
Vesicles : Size(mm): 0.5-3 Percent: 10-15
Location: Filling: CARB
PARTLY FILLED BY CARB & BLUE-GRAY MINERAL(SMEC?),
PCES 2-4+6+10+19-23;
Replacement: CARBONATE
PALAGONITE
Minerals Replaced: GLASS
Leg : 49 Top/Bottom Interval(mm): 0/1500 Analyst: Duff, W.
Hole: 410A Sample Midpoint (m) : 358.00
Core: 4 Top of Core Depth (m) : 353.50
Sect: 3 Top of Section Depth(m): 356.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (1-3), 2 (6-14), 3 (15-20), 4 (23-28),
5 (30-33), 6 (35-39), 7 (41-46), 8 (49-55),
9 (56-60), 10A (62-65), 10B (65-72), 11 (75-78),
12 (81-90), 13 (91-96), 14A (99-101), 14B (101-103),
15 (105-112), 16 (114-117), 17 (119-123),
18 (125-135), 19 (137-143), 20 (146-149);
Texture : APHYRIC,COARSER-GRAINED,GLASSY SELVAGES ON PCES 2+4-
6,DECREASE IN VESICULARITY & INCREASE IN GRAINSIZE
DOWNWARD,VARIOLITIC ARRANGEMENT OF PLAG UP TO 1MM
LONG IS COMMON IN LOWER PART OF CORE;
Structure : HARD FINE-GRAINED CALCITE VEINS ARE COMMON,POSSIBLE
GLASSY TOP OF A FLOW IN PCES 1-6 & THE LESS
VESICULAR COARSER-GRAINED INTERIOR OF THE FLOW
LOWER IN THIS SECTION,THIS POSSIBLE FLOW INTERIOR
CONTINUES INTO CORE 4-4;
Vesicles : Size(mm): Percent: 10-15
Location: Filling: CALCITE,ZEOL
PCES 1-3,DECREASING DOWNWARD;
Size(mm): Percent: 5
Location: Filling: CALCITE,ZEOL
PCE 6 DOWNWARD,ID ZEOL UNCERTAIN;
Replacement: CALCITE
ZEOLITE
Leg : 49 Top/Bottom Interval(mm): 0/1050 Analyst: Duff, W.
Hole: 410A Sample Midpoint (m) : 359.05
Core: 4 Top of Core Depth (m) : 353.50
Sect: 4 Top of Section Depth(m): 358.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (1-14), 2 (17-21), 3 (23-29), 4 (32-33),
5 (36-49), 6 (51-62), 7A (64-77), 7B (78-84),
8 (85-90), 9 (93-97), 10 (102-105);
Texture : APHYRIC,VARIOLITIC TEXTURE OF 1MM PLAG XTLS,PCE 10
IS FINER-GRAINED;
Structure : CALCITE VEINS COMMON,APPEARS TO BE A CONTINUATION OF
MASSIVE FLOW CENTER FIRST NOTED IN CORE 4-3,PCE 10
POSSIBLY BASE OF FLOW;
Alteration : SLIGHTLY TO MOD
Vesicles : Size(mm): <0.2 Percent:
Location: Filling: CALCITE,ZEOL
FEW VESICLES;
Size(mm): 1 Percent: 5
Location: Filling: CALCITE,ZEOL
PCE 10;
Replacement: CALCITE
ZEOLITE
Leg : 49 Top/Bottom Interval(mm): 0/1500 Analyst: Duff, W.
Hole: 410A Sample Midpoint (m) : 364.50
Core: 5 Top of Core Depth (m) : 363.00
Sect: 1 Top of Section Depth(m): 363.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (1-9), 2 (10-14), 3 (16-19), 4 (21-25),
5 (27-33), 6 (35-40), 7 (42-45), 8 (45-50),
9 (51-59), 10 (62-66), 11 (70-77), 12 (79-84),
13 (86-90), 14A (92-95), 14B (96-97), 15 (100-105),
16 (107-109), 17 (112-115), 18 (119-123),
19 (126-130), 20 (132-135), 21 (137-143),
22 (146-149);
Texture : APHYRIC,FINE-GRAINED,VARIOLITIC TEXTURE OF PLAG
EVIDENT,PCES 13+18 HAVE GLASS SELVAGES;
Structure : THE VESICULAR ZONES MAY REPRESENT FLOW MARGINS & IF
SO SEVERAL FLOWS OF THE SAME LAVA ARE PRESENT,THIN
CARB VEINS ARE COMMON THROUGHOUT;
Vesicles : Size(mm): 1-3 Percent: 5-10
Location: Filling: CALCITE,SMEC
PCES 1+5+8+13-15+19+20,REMAINING PCES ARE LESS
VESICULAR WITH SMALLER VESICLES(<0.2MM);
Replacement: CALCITE
SMECTITE
CARBONATE
Leg : 49 Top/Bottom Interval(mm): 0/1500 Analyst: Duff, W.
Hole: 410A Sample Midpoint (m) : 366.00
Core: 5 Top of Core Depth (m) : 363.00
Sect: 2 Top of Section Depth(m): 364.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (2-10), 2A (16-20), 2B (20-30), 3 (32-37),
4 (39-44), 5 (45-49), 6 (50-55), 7 (55-64),
8 (65-68), 9 (71-74), 10 (77-80), 11 (81-85),
12A (87-92), 12B (88-92), 13 (95-104), 14 (105-120),
15 (121-131), 16 (134-150);
Texture : APHYRIC,FINE-GRAINED,VARIOLITIC TEXTURE OF PLAG
LATHS ARE EVIDENT;
Structure : POSSIBLY SAMPLING PARTS OF TWO FLOWS WITH VESICULAR
ZONES BETWEEN,THIN CARB VEINS;
Vesicles : Size(mm): 1-3 Percent: 10
Location: Filling: CARB,SMEC
PCES 4+5, REMAINING PCES ARE LESS VESICULAR BUT
DENSER WITH SMALL VESICLES(<0.2MM);
Replacement: CARBONATE
SMECTITE
Leg : 49 Top/Bottom Interval(mm): 0/1350 Analyst: Duff, W.
Hole: 410A Sample Midpoint (m) : 367.35
Core: 5 Top of Core Depth (m) : 363.00
Sect: 3 Top of Section Depth(m): 366.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1A (0-17), 1B (12-17), 1C (19-25), 2 (27-32),
3 (34-40), 4 (41-50), 5 (54-57), 6 (60-66),
7 (69-74), 8 (76-82), 9 (84-92), 10A (94-96),
10B (96-105), 11 (106-111), 12 (113-119),
13 (121-125), 14 (129-134);
Texture : APHYRIC,FINE-GRAINED,VARIOLITIC TEXTURE OF PLAG
APPARENT;
Structure : POSSIBLY SAMPLED PARTS OF THREE FLOWS WITH
INTERVENING ZONES,CARB VEINS COMMON;
Vesicles : Size(mm): 1-3 Percent: 5-10
Location: Filling: CALCITE,SMEC
PCES 6-7+12-14,OTHER PCES ARE LESS VESICULAR &
HAVE SMALLER VESICLES(<0.2MM),SMEC & CALCITE
PARTLY OR COMPLETELY FILL VESICLES;
Replacement: CARBONATE
SMECTITE
CALCITE
Leg : 49 Top/Bottom Interval(mm): 0/1370 Analyst: Duff, W.
Hole: 410A Sample Midpoint (m) : 368.87
Core: 5 Top of Core Depth (m) : 363.00
Sect: 4 Top of Section Depth(m): 367.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (1-17), 2 (18-22), 3 (25-34), 4 (35-41),
5 (45-48), 6 (51-55), 7 (57-60), 8 (63-69),
9 (72-74), 10 (78-82), 11 (85-94), 12 (95-105),
13 (110-114), 14 (117-122), 15 (125-130),
16 (135-137);
Texture : APHYRIC,FINE-GRAINED,PCE 4 HAS GLASSY SELVAGE,PCE 1
INCLUDES BASALT GLASS BRECCIA;
Structure : CARB VEINS PRESENT;
Vesicles : Size(mm): <0.2 Percent:
PERCENT VESICULARITY DIFFICULT TO ESTIMATE BUT
PROBABLY SEVERAL PERCENT;
Replacement: CARBONATE
Leg : 49 Top/Bottom Interval(mm): 0/1500 Analyst: Duff, W.
Hole: 410A Sample Midpoint (m) : 374.00
Core: 6 Top of Core Depth (m) : 372.50
Sect: 1 Top of Section Depth(m): 372.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (1-5), 2A (7-17), 2B (18-20), 3 (21-27),
4 (29-34), 5 (35-41), 6 (45-47), 7 (49-51),
8 (54-58), 9 (61-65), 10 (66-68), 11 (72-77),
12 (80-83), 13 (85-88), 14 (92-96), 15 (98-103),
16A (105-107), 16B (110-115), 17 (116-127),
18 (130-134), 19 (135-139), 20A (140-143),
20B (145-149);
Texture : APHYRIC,FINE-GRAINED,PCES 2-4+8-9+12-14 HAVE GLASSY
SELVAGES,GLASSY PIECES ARE ZONED INWARD THROUGH A
HYDRATED(?) DEVITRIFIED BAND TO FINE-GRAINED BASALT
WITH PIPE VESICLES COMMON IN THE DEVITRIFIED ZONE;
Structure : SEVERAL PILLOWS OR THIN FLOWS ARE REPRESENTED HERE,
NEARLY ALL PCES ARE LACED WITH CARB VEINS;
Comments : GLASS IS BLACK,HYDRATED GLASS GRAY & FINE-GRAINED
BASALT IS TAN;
Vesicles : Size(mm): Percent: RARE
Location: Filling: SMEC,CARB,ZEOL
Shape : PIPE
RARE ZEOL,PIPE VESICLES IN DEVITRIFIED ZONE;
Replacement: CARBONATE
ZEOLITE
SMECTITE
Leg : 49 Top/Bottom Interval(mm): 0/1500 Analyst: Duff, W.
Hole: 410A Sample Midpoint (m) : 375.50
Core: 6 Top of Core Depth (m) : 372.50
Sect: 2 Top of Section Depth(m): 374.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (1-8), 2 (10-14), 3 (16-20), 4 (27-32),
5A (27-32), 5B (32-35), 6 (38-43), 7 (45-50),
8 (52-59), 9 (62-66), 10 (68-71), 11 (73-78),
12 (80-86), 13 (89-96), 14 (100-105), 15 (107-110),
16 (114-119), 17 (122-132), 18 (135-138),
19A (140-142), 19B (142-145), 19C (145-149);
Texture : APHYRIC,FINE-GRAINED,PCES 3+12-14 HAVE GLASS
SELVAGES;
Structure : CARB VEINS;
Vesicles : Size(mm): 1-2 Percent: 5-10
Location: Filling: SMEC,CARB
PCES 8-11+13+15+19,VESICLES ARE PARTLY OR
COMPLETELY FILLED;
Replacement: CARBONATE
SMECTITE
Leg : 49 Top/Bottom Interval(mm): 0/ 950 Analyst: Roberts, W.
Hole: 410A Sample Midpoint (m) : 376.45
Core: 6 Top of Core Depth (m) : 372.50
Sect: 3 Top of Section Depth(m): 375.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (1-9), 2 (11-15), 3 (18-22), 4 (25-33),
5 (35-39), 6 (41-48), 7 (50-53), 8 (57-60),
9 (65-68), 10 (70-73), 11 (75-79), 12 (82-87),
13 (90-93);
Texture : APHYRIC,PCES 4-9+11 HAVE GLASS SELVAGES,GLASSY PCES
ARE ZONED THROUGH A HYDRATED(?) DEVITRIFIED BAND TO
FINE-GRAINED BASALT,FINE-GRAINED;
Structure : PCES 1+6+12-13 HAVE CARB VEINS;
Comments : GLASS IS BLACK,HYDRATED GLASS GRAY & BASALT GRAYISH-
TAN;
Vesicles :
Location: Filling: CALCITE,SMEC,ZEOL
RARE ZEOL;
Replacement: CARBONATE
ZEOLITE
SMECTITE
CALCITE
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