Leg : 63 Top/Bottom Interval(mm): 0/ 940 Analyst: Leinen, M.
Hole: 471 Sample Midpoint (m) : 741.94
Core: 79 Top of Core Depth (m) : 741.00
Sect: 1 Top of Section Depth(m): 741.00
LITHOLOGY: SEDIMENT;
Leg : 63 Top/Bottom Interval(mm): 940/1500 Analyst: Leinen, M.
Hole: 471 Sample Midpoint (m) : 742.50
Core: 79 Top of Core Depth (m) : 741.00
Sect: 1 Top of Section Depth(m): 741.94
LITHOLOGY: DOLERITE;
Piece No. : PCES 1A (94-100), 1B (101-109), 1C (109-116),
1D (117-126), 1E (126-137), 1F (137-145),
1G (145-150);
Texture : FINE-GRAINED,APHANITIC,APHYRIC,GRAINSIZE INCREASES
SLIGHTLY TOWARD BOTTOM;
Structure : CALCITE-FILLED THIN VEINS AT 95-110CM,MASSIVE;
Alteration : EXTENSIVELY
Comments : MEDIUM-GRAY(N5);
Replacement: CALCITE
Leg : 63 Top/Bottom Interval(mm): 0/ 500 Analyst: Shibata, T.
Hole: 471 Sample Midpoint (m) : 743.00
Core: 79 Top of Core Depth (m) : 741.00
Sect: 2 Top of Section Depth(m): 742.50
LITHOLOGY: DOLERITE;
Piece No. : PCES 1A (1-5), 1B (5-10), 1C (14-50);
Texture : FINE-TO-MEDIUM-GRAINED,APHYRIC;
Structure : MASSIVE,THIN VEINS(<3MM) FILLED WITH CALCITE IN
PCE 2;
Alteration : EXTENSIVELY
Comments : MEDIUM GRAY(N5);
Groundmass : PLAGIOCLASE
Size(mm): TO 2
PRISMATIC;
Replacement: CALCITE
Leg : 63 Top/Bottom Interval(mm): 0/ 80 Analyst: Shibata, T.
Hole: 471 Sample Midpoint (m) : 750.58
Core: 80 Top of Core Depth (m) : 750.50
Sect: 1 Top of Section Depth(m): 750.50
LITHOLOGY: SEDIMENT;
Leg : 63 Top/Bottom Interval(mm): 80/1500 Analyst: Shibata, T.
Hole: 471 Sample Midpoint (m) : 752.00
Core: 80 Top of Core Depth (m) : 750.50
Sect: 1 Top of Section Depth(m): 750.58
LITHOLOGY: DOLERITE;
BRECCIATED DOLERITE;
Piece No. : PCES 1 (0-7), 2 (8-18), 3 (20-22), 4A (25-34),
4B (35-45), 4C (45-52), 4D (52-60), 5 (62-71),
6A (73-76), 6B (76-85), 6C (85-88), 7A (90-94),
7B (95-101), 7C (101-104), 7D (104-109),
8 (110-134), 9A (135-140), 9B (141-150);
Texture : MEDIUM-GRAINED,APHYRIC,FRAGMENTS ARE ANGULAR &
IRREGULAR(LENS-LIKE);
Structure : CALICTE-FILLED VOIDS AT 48-49CM;
Alteration : EXTENSIVELY
Comments : BRECCIATED DOLERITE 98-150CM;
Replacement: CALCITE
Leg : 63 Top/Bottom Interval(mm): 0/1450 Analyst: Shibata, T.
Hole: 471 Sample Midpoint (m) : 753.45
Core: 80 Top of Core Depth (m) : 750.50
Sect: 2 Top of Section Depth(m): 752.00
LITHOLOGY: DOLERITE;
Piece No. : PCES 1A (0-3), 1B (3-10), 2 (13-20), 3 (23-30),
4 (32-36), 5 (37-52), 6A (54-64), 6B (64-71),
6C (72-78), 6D (78-86), 6E (86-92), 6F (92-97),
6G (97-106), 6H (106-110), 6I (112-118),
6J (118-123), 6K (123-135), 6L (135-142);
Texture : DOLERITE FRAGMENTS SET IN APHANITIC MATRIX,FRAGMENTS
ARE ANGULAR TO SUBANGULAR(<5CM);
Alteration : EXTENSIVELY
Comments : DARK GRAY MATRIX(N3);
Groundmass : GREENISH,ALTERED;
Phenocrysts: PLAGIOCLASE
Size(mm): TO 2
LATHS;
Leg : 63 Top/Bottom Interval(mm): 0/1500 Analyst: Shibata, T.
Hole: 471 Sample Midpoint (m) : 755.00
Core: 80 Top of Core Depth (m) : 750.50
Sect: 3 Top of Section Depth(m): 753.50
LITHOLOGY: DOLERITE;
BRECCIATED DOLERITE;
Piece No. : PCES 1 (1-9), 2 (10-15), 3A (16-25), 3B (25-34),
4 (35-45), 5A (48-59), 5B (60-74), 6 (75-81),
7 (92-104), 8 (105-124), 9 (126-134), 10 (137-144),
11 (146-150);
Texture : FINE-TO-MEDIUM-GRAINED,SIMILAR TO CORE 80-2,DOLERITE
FRAGMENTS SET IN AN APHANITIC MATRIX,FRAGMENTS ARE
FINE-GRAINED & ANGULAR(<2CM);
Alteration : EXTENSIVELY
Comments : DARK GRAY BRECCIATED DOLERITE;
Groundmass : GREENISH,ALTERED;
Phenocrysts: PLAGIOCLASE
Size(mm): TO 2
LATHS;
Leg : 63 Top/Bottom Interval(mm): 0/1500 Analyst: Shibata, T.
Hole: 471 Sample Midpoint (m) : 761.50
Core: 81 Top of Core Depth (m) : 760.00
Sect: 1 Top of Section Depth(m): 760.00
LITHOLOGY: DOLERITE;
BRECCIATED DOLERITE;
Piece No. : PCES 1A (0-14), 1B (12-20), 2 (23-46), 3A (48-65),
3B (64-74), 4 (76-82), 5 (83-93), 6 (95-101),
7 (103-112), 8 (114-117), 9 (120-128), 10 (131-148);
Texture : MEDIUM-GRAINED,GRAINSIZE DECREASES TOWARD DEPTH OF
85CM;
Structure : CALCITE-FILLED FRACTURES & LENS-SHAPED VOIDS SCATTER
THROUGHOUT;
Alteration : EXTENSIVELY
Comments : BRECCIATED DOLERITE PCES 5+6;
Replacement: CALCITE
Leg : 63 Top/Bottom Interval(mm): 0/1500 Analyst: Shibata, T.
Hole: 471 Sample Midpoint (m) : 763.00
Core: 81 Top of Core Depth (m) : 760.00
Sect: 2 Top of Section Depth(m): 761.50
LITHOLOGY: DOLERITE;
Piece No. : PCES 1 (0-8), 2 (10-13), 3 (15-20), 4 (22-33),
5A (35-43), 5B (42-52), 5C (51-54), 6 (57-65),
7 (68-77), 8 (79-86), 9 (88-95), 10 (98-104),
11A (106-114), 11B (115-127), 12 (127-132),
13 (134-140), 14 (142-150);
Texture : FINE-TO-MEDIUM-GRAINED,APHYRIC;
Structure : DARK GREEN APHANITIC VEIN IN PCE 10(<0.5CM THICK),
DARK GREEN IRREGULAR PATCHES OR VEINS(<1.0CM) AT
115CM;
Alteration : EXTENSIVELY
Groundmass : ALTERED,GREENISH;
Phenocrysts: PLAGIOCLASE
Size(mm): TO 2
LATHS;
Leg : 63 Top/Bottom Interval(mm): 0/1400 Analyst: Shibata, T.
Hole: 471 Sample Midpoint (m) : 764.40
Core: 81 Top of Core Depth (m) : 760.00
Sect: 3 Top of Section Depth(m): 763.00
LITHOLOGY: DOLERITE;
Piece No. : PCES 1 (0-5), 2 (7-13), 3A (15-21), 3B (21-27),
3C (27-35), 3D (36-42), 3E (43-48), 4 (50-55),
5 (57-65), 6 (67-71), 7A (72-74), 7B (75-78),
8 (80-85), 9A (87-93), 9B (95-101), 9C (101-106),
10 (108-117), 11 (120-128), 12 (130-137);
Texture : MEDIUM-GRAINED,APHYRIC,GRAINSIZE BECOMES SLIGHTLY
COARSER TOWARD THE BOTTOM;
Structure : CALCITE VEINS(2MM THICK) WITH METALS(PYR XTLS?) ARE
FOUND AT 22-26CM,PCE 7B SHOWS BANDED STRUCTURE THAT
IS CHARACTERIZED BY THIN DARK GREEN APHANITIC LAYERS
(<0.5-1MM THICK);
Alteration : EXTENSIVELY
Groundmass : PLAGIOCLASE
Size(mm): TO 3
LATHS SET IN ALTERED GREENISH MATRIX;
Replacement: CALCITE
ID PYR XTLS UNCERTAIN;
Leg : 63 Top/Bottom Interval(mm): 0/1500 Analyst: Shibata, T.
Hole: 471 Sample Midpoint (m) : 766.00
Core: 81 Top of Core Depth (m) : 760.00
Sect: 4 Top of Section Depth(m): 764.50
LITHOLOGY: DOLERITE;
BRECCIATED DOLERITE;
Piece No. : PCES 1 (0-18), 2 (20-25), 3A (27-30), 3B (33-35),
3C (36-45), 4 (48-53), 5 (57-67), 6 (69-78),
7 (80-89), 8 (90-100), 9 (101-109), 10 (111-118),
11 (120-130), 12 (131-135);
Texture : MEDIUM-GRAINED,APHYRIC;
Alteration : EXTENSIVELY
Comments : BRECCIATED DOLERITE FRAGMENTS IN PCES 3-5+9-11,
INTERVAL 135-150CM HAS MORE THAN 20 SMALL PCES;
Groundmass : GREENISH ALTERED MATRIX;
Phenocrysts: PLAGIOCLASE
Size(mm): TO 3
ANGULAR TO SUBANGULAR LATHS;
Leg : 63 Top/Bottom Interval(mm): 0/1500 Analyst: Shibata, T.
Hole: 471 Sample Midpoint (m) : 770.50
Core: 82 Top of Core Depth (m) : 769.00
Sect: 1 Top of Section Depth(m): 769.00
LITHOLOGY: DOLERITE;
BRECCIATED DOLERITE;
Piece No. : PCES 1A (0-18), 1B (16-20), 2 (23-30), 3 (32-47),
4 (50-55), 6A (65-72), 6B (74-78), 6C (79-82),
6D (83-85), 7 (87-97), 8A (99-104), 8B (105-113),
8C (114-119), 8D (120-123), 9 (126-139),
10 (141-150);
Texture : FINE-GRAINED,GRAINSIZE DECREASES FROM 0-55CM & THEN
INCREASES FROM 60-150CM,IGNEOUS LITHIC FRAGMENTS IN
PCES 6A+6B;
Structure : MASSIVE,VERY THIN VEINS OF GREENISH-BLACK MINS
SCATTERED;
Alteration : EXTENSIVELY
Groundmass : ALTERED GREENISH MATRIX;
Phenocrysts: PLAGIOCLASE
Size(mm): TO 0.5
LATHS;
Leg : 63 Top/Bottom Interval(mm): 550/ 600 Analyst: Niem, Alan
Hole: 471 Sample Midpoint (m) : 769.60
Core: 82 Top of Core Depth (m) : 769.00
Sect: 1 Top of Section Depth(m): 769.55
LITHOLOGY: SEDIMENT;
CLAYSTONE;
Leg : 63 Top/Bottom Interval(mm): 0/1000 Analyst: Shibata, T.
Hole: 471 Sample Midpoint (m) : 771.50
Core: 82 Top of Core Depth (m) : 769.00
Sect: 2 Top of Section Depth(m): 770.50
LITHOLOGY: DOLERITE;
Piece No. : PCES 1A (0-12), 1B (12-22), 1C (23-25), 2A (26-34),
2B (34-40), 2C (40-44), 2D (45-59), 2E (60-67),
3 (71-82), 4 (84-98);
Texture : FINE-TO-MEDIUM-GRAINED,APHYRIC;
Structure : SLICKENSLIDE IN PCE 3,SCATTERED DARK GREENISH VEINS
<2MM THICK,MASSIVE;
Alteration : EXTENSIVELY
Groundmass : ALTERED GREENISH MATRIX;
Phenocrysts: PLAGIOCLASE
Size(mm): TO 2
LATHS;
Leg : 63 Top/Bottom Interval(mm): 0/1500 Analyst: Shibata, T.
Hole: 471 Sample Midpoint (m) : 779.50
Core: 83 Top of Core Depth (m) : 778.00
Sect: 1 Top of Section Depth(m): 778.00
LITHOLOGY: DOLERITE;
BRECCIATED DOLERITE;
Piece No. : PCES 1A (0-13), 1B (12-20), 1C (20-28), 1D (28-35),
1E (36-46), 1F (47-50), 1G (50-56), 1H (56-61),
1I (62-66), 2 (68-72), 3A (74-79), 3B (80-81),
3C (83-87), 3D (87-101), 3E (101-106), 4 (108-111),
5A (114-120), 5B (120-125), 5C (125-127),
5D (128-130), 5E (131-136), 5F (137-140),
5G (140-147);
Texture : MEDIUM-GRAINED,POROUS THROUGHOUT,APHYRIC,CLAYEY
MATRIX(DARK GREEN);
Alteration : EXTENSIVELY
Vesicles : Size(mm): 0.5 Percent:
POROUS THROUGHOUT(VESICULAR);
Phenocrysts: PLAGIOCLASE
Size(mm): TO 2
LATHS;
Replacement: CLAY
Leg : 63 Top/Bottom Interval(mm): 0/1450 Analyst: Shibata, T.
Hole: 471 Sample Midpoint (m) : 780.95
Core: 83 Top of Core Depth (m) : 778.00
Sect: 2 Top of Section Depth(m): 779.50
LITHOLOGY: DOLERITE;
BRECCIATED DOLERITE;
Piece No. : PCES 1A (1-11), 1B (12-23), 1C (24-30), 2 (32-48),
3A (50-56), 3B (57-61), 3C (63-72), 4 (73-106),
5A (107-113), 5B (114-120), 5C (122-128),
5D (129-136), 5E (137-143);
Texture : DOLERITE FRAGMENTS SET IN AN APHANITIC MATRIX,
FRAGMENTS ARE SUBANGULAR(<5CM) & ALIGNED PARALLEL TO
CORE;
Alteration : EXTENSIVELY
Comments : DARK GRAY(N3) MATRIX;
Phenocrysts: PLAGIOCLASE
Size(mm): TO 3
LATHS;
Leg : 63 Top/Bottom Interval(mm): 0/1150 Analyst: Shibata, T.
Hole: 471 Sample Midpoint (m) : 782.15
Core: 83 Top of Core Depth (m) : 778.00
Sect: 3 Top of Section Depth(m): 781.00
LITHOLOGY: DOLERITE;
BRECCIATED DOLERITE;
Piece No. : PCES 1A (0-6), 1B (7-13), 2 (15-20), 3A (22-27),
3B (27-35), 3C (35-40), 3D (41-48), 3E (48-61),
3F (61-70), 3G (70-77), 3H (77-83), 3I (83-88),
3J (88-92), 4 (93-111);
Texture : FRAGMENTS ARE SUBANGULAR(<5CM) & ALIGNED PARALLEL TO
CORE,DOLERITE & XTL FRAGMENTS;
Alteration : EXTENSIVELY
Comments : BRECCIATED,DARK GRAY(N3) MATRIX,PCE 5 MADE UP OF
MORE THAN 25 PEBBLES;
Groundmass : PYROXENE
Size(mm): TO 5
BLACK,PRISMATIC;
Leg : 63 Top/Bottom Interval(mm): 0/1500 Analyst:
Hole: 471 Sample Midpoint (m) : 788.50
Core: 84 Top of Core Depth (m) : 787.00
Sect: 1 Top of Section Depth(m): 787.00
LITHOLOGY: ALTERED DIABASE;
Piece No. : PCE 1 (0-2), 2A (4-15), 2B (15-20), 2C (20-22),
3A (25-27), 3B (27-30), 3C (27-30), 3D (31-35),
3E (31-35), 4 (37-48), 5A (50-53), 5B (51-55),
5C (55-58), 5D (56-60), 6A (62-67), 6B (67-74),
6C (75-82), 6D (82-91), 6E (91-102), 6F (101-109),
6G (109-116), 6H (117-120), 6I (121-126),
6J (127-134), 6K (135-143), 6L (142-150);
Texture : APHYRIC, FINE TO MEDIUM-GRAINED;
Structure : MASSIVE;
Comments : BLACK IN COLOR;
Alteration : EXTENSIVELY;
Groundmass : PYROXENE
Size(mm): TO 5MM
BLACK,PRISMATIC;
Leg : 63 Top/Bottom Interval(mm): 0/ 950 Analyst:
Hole: 471 Sample Midpoint (m) : 789.45
Core: 84 Top of Core Depth (m) : 787.00
Sect: 2 Top of Section Depth(m): 788.50
LITHOLOGY: DOLERITE;
Piece No. : PCES 1A (0-6), 1B (6-16), 1C (16-20), 2 (21-42),
3A (43-52), 3B (52-61), 3C (62-69), 3D (70-76),
3E (77-81), 4 (83-94);
Texture : FINE-TO-MEDIUM-GRAINED,APHYRIC;
Alteration : EXTENSIVELY
Comments : PCE 2 MADE UP OF 11 PCES,PCE 4 MADE UP OF 10 PCES;
Phenocrysts: PLAGIOCLASE
Size(mm): TO 4
LATHS;
PYROXENE
Size(mm): to 4
BLACK,PRISMATIC;
Leg : 63 Top/Bottom Interval(mm): 0/1500 Analyst:
Hole: 471 Sample Midpoint (m) : 797.50
Core: 85 Top of Core Depth (m) : 796.00
Sect: 1 Top of Section Depth(m): 796.00
LITHOLOGY: DOLERITE;
Piece No. : PCES 1A (0-20), 1B (20-29), 1C (29-41), 1D (41-53),
1E (53-58), 2 (63-70), 3A (72-85), 3B (84-91),
3C (90-102), 3D (100-102), 3E (101-111),
3F (111-122), 4A (124-127), 4B (127-137),
4C (138-147);
Texture : FINE-TO-MEDIUM-GRAINED,APHYRIC;
Structure : MASSIVE;
Alteration : EXTENSIVELY
Phenocrysts: PLAGIOCLASE
Size(mm): TO 4
LATHS;
PYROXENE
Size(mm): TO 4
BLACK,PRISMATIC;
Leg : 63 Top/Bottom Interval(mm): 0/1100 Analyst: Crouch, J.
Hole: 471 Sample Midpoint (m) : 798.60
Core: 85 Top of Core Depth (m) : 796.00
Sect: 2 Top of Section Depth(m): 797.50
LITHOLOGY: DOLERITE;
Piece No. : PCES 1A (0-8), 1B (9-19), 1C (20-26), 1D (15-31),
1E (31-40), 1F (40-43), 2A (46-50), 2B (50-60),
2C (60-65), 2D (67-74), 3 (77-87), 4 (90-98),
5 (101-110);
Texture : FINE-TO-MEDIUM-GRAINED,APHYRIC,HOLOXTLLINE;
Structure : MASSIVE;
Alteration : EXTENSIVELY
Phenocrysts: PLAGIOCLASE
Size(mm): TO 5
LATHS;
PYROXENE
Size(mm): TO 5
BLACK,PRISMATIC;
Leg : 63 Top/Bottom Interval(mm): 0/ 750 Analyst: Leinen, M.
Hole: 471 Sample Midpoint (m) : 805.75
Core: 86 Top of Core Depth (m) : 805.00
Sect: 1 Top of Section Depth(m): 805.00
LITHOLOGY: DOLERITE;
Piece No. : PCES 1 (0-10), 2 (13-23), 3 (25-38), 4A (39-45),
4B (46-55), 4C (55-63), 4D (63-69), 5 (71-75);
Texture : FINE-TO-MEDIUM-GRAINED,APHYRIC,HOLOXTLLINE;
Structure : MASSIVE;
Alteration : EXTENSIVELY
Comments : PCE 1 MADE UP OF 10 PCES,PCE 3 MADE UP OF SEVERAL
SMALL PCES;
Phenocrysts: PLAGIOCLASE
Size(mm): TO 5
LATHS;
PYROXENE
Size(mm): TO 5
BLACK,PRISMATIC;
Leg : 63 Top/Bottom Interval(mm): 0/1500 Analyst: Shibata, T.
Hole: 471 Sample Midpoint (m) : 808.50
Core: 87 Top of Core Depth (m) : 807.00
Sect: 1 Top of Section Depth(m): 807.00
LITHOLOGY: DOLERITE;
Piece No. : PCES 1A (0-9), 1B (10-55), 1C (54-80), 1D (80-95),
1E (94-110), 1F (111-120), 1G (117-150);
Texture : FINE-TO-MEDIUM-GRAINED,APHYRIC,HOLOXTLLINE,SIMILAR
THROUGHOUT CORE;
Structure : MASSIVE,CALCITE & GREENISH CLAY-FILLED VEINS OR
FRACTURES AT 18-40+42-43+117-120+125-138CM;
Alteration : EXTENSIVELY
DARK GREENISH SPOTS OF ALT.MINS AGGREGATES ARE UP
TO 2MM;
Replacement: CALCITE
CLAY
UNIDENTIFIED
DARK GREENISH,ALT.MINS UNIDENT;
Leg : 63 Top/Bottom Interval(mm): 0/1500 Analyst: Shibata, T.
Hole: 471 Sample Midpoint (m) : 810.00
Core: 87 Top of Core Depth (m) : 807.00
Sect: 2 Top of Section Depth(m): 808.50
LITHOLOGY: DOLERITE;
Piece No. : PCES 1A (0-15), 1B (15-25), 1C (25-36), 1D (45-80),
1E (79-88), 1F (86-94), 1G (95-100), 1H (100-112),
1I (112-122), 1J (120-125), 1K (124-135),
1L (133-141), 1M (140-150);
Texture : FINE-TO-MEDIUM-GRAINED,APHYRIC,HOLOXTLLINE;
Structure : MASSIVE,DARK GREEN CLAYS & CALCITE-FILLED VEINS
(0.7MM THICK) AT 105-120CM;
Alteration : EXTENSIVELY
DARK GREENISH SPOTS OF ALT.MIN AGGREGATES UP TO
2MM;
Replacement: CLAY
CALCITE
DARK GREEN CLAYS & CALCITE;
Leg : 63 Top/Bottom Interval(mm): 0/1500 Analyst: Shibata, T.
Hole: 471 Sample Midpoint (m) : 811.50
Core: 87 Top of Core Depth (m) : 807.00
Sect: 3 Top of Section Depth(m): 810.00
LITHOLOGY: DOLERITE;
Piece No. : PCES 1A (0-12), 1B (12-28), 1C (28-40), 1D (40-48),
1E (48-62), 1F (62-68), 1G (66-77), 1H (77-88),
1I (89-93), 1J (93-100), 1K (99-106), 1L (106-115),
1M (115-126), 1N (125-132), 1O (133-140),
1P (140-144), 1Q (145-150);
Texture : FINE-TO-MEDIUM-GRAINED,APHYRIC,HOLOXTLLINE;
Structure : MASSIVE,CALCITE & CLAY-FILLED FRACTURES COMMON;
Alteration : EXTENSIVELY
DARK GREEN SPORTS OF ALT.MIN AGGS <1MM;
Replacement: CALCITE
CLAY
UNIDENTIFIED
UNIDENT AGGS OF ALT.MINS;
Leg : 63 Top/Bottom Interval(mm): 0/ 850 Analyst: Shibata, T.
Hole: 471 Sample Midpoint (m) : 812.35
Core: 87 Top of Core Depth (m) : 807.00
Sect: 4 Top of Section Depth(m): 811.50
LITHOLOGY: DOLERITE;
Piece No. : PCES 1A (0-7), 1B (7-16), 2 (18-26), 3 (28-74),
4 (75-82);
Texture : FINE-TO-MEDIUM-GRAINED,APHYRIC,HOLOXTLLINE,SIMILAR
TO LOWER PORTION OF CORE 87-3;
Structure : MASSIVE,CALICTE & CLAY-FILLED FRACTURES COMMON;
Alteration : EXTENSIVELY
Comments : PCE 3 MADE UP OF 28 PEBBLES;
Replacement: CALCITE
CLAY
Leg : 63 Top/Bottom Interval(mm): 0/1500 Analyst: Shibata, T.
Hole: 471 Sample Midpoint (m) : 815.50
Core: 88 Top of Core Depth (m) : 814.00
Sect: 1 Top of Section Depth(m): 814.00
LITHOLOGY: DOLERITE;
Piece No. : PCES 1A (0-13), 1B (14-23), 1C (22-32), 2 (33-43),
3A (44-75), 3B (75-83), 3C (78-96), 3D (97-110),
3E (111-125), 3F (125-130), 3G (130-140),
3H (140-150);
Texture : FINE-TO-MEDIUM-GRAINED,APHYRIC,HOLOXTLLINE,FRAGMENTS
ARE ANGULAR & <1CM IN DIAMETER;
Structure : CALCITE-CLAY FILLED FRACTURES COMMON,MASSIVE;
Alteration : MOD TO EXTENSIVELY
Comments : MINOR FAULT BRECCIAS POSSIBLE AT 44-73CM,FRAGMENTS
CEMENTED TOGETHER WITH CALCITE;
Replacement: CALCITE
CLAY
Leg : 63 Top/Bottom Interval(mm): 0/1300 Analyst: Shibata, T.
Hole: 471 Sample Midpoint (m) : 816.80
Core: 88 Top of Core Depth (m) : 814.00
Sect: 2 Top of Section Depth(m): 815.50
LITHOLOGY: DOLERITE;
Piece No. : PCES 1A (0-13), 1B (12-33), 1C (32-37), 1D (37-49),
1E (47-66), 1F (66-75), 1G (76-84), 2A (85-96),
2B (93-103), 2C (103-110), 2D (110-120),
2E (120-121), 2F (120-130);
Texture : FINE-TO-MEDIUM-GRAINED,APHYRIC,HOLOXTLLINE;
Structure : CALCITE & CLAY-FILLED FRACTURES COMMON;
Alteration : MOD TO EXTENSIVELY
Replacement: CALCITE
CLAY
Leg : 63 Top/Bottom Interval(mm): 0/1500 Analyst: Shibata, T.
Hole: 471 Sample Midpoint (m) : 818.50
Core: 88 Top of Core Depth (m) : 814.00
Sect: 3 Top of Section Depth(m): 817.00
LITHOLOGY: DOLERITE;
Piece No. : PCES 1A (0-28), 1B (27-34), 1C (33-44), 1D (44-53),
1E (54-62), 1F (60-68), 1G (68-78), 1H (77-88),
1I (88-101), 1J (100-109), 2 (111-150);
Texture : FINE-TO-MEDIUM-GRAINED,APHYRIC,HOLOXTLLINE,
MACROSCOPICALLY SIMILAR THROUGHOUT;
Structure : MASSIVE,CALCITE & CLAY-FILLED FRACTURES COMMON
(<0.7CM);
Alteration : MOD TO EXTENSIVELY
Replacement: CALCITE
CLAY
Leg : 63 Top/Bottom Interval(mm): 0/1250 Analyst: Shibata, T.
Hole: 471 Sample Midpoint (m) : 819.75
Core: 88 Top of Core Depth (m) : 814.00
Sect: 4 Top of Section Depth(m): 818.50
LITHOLOGY: DOLERITE;
Piece No. : PCES 1 (0-125);
Texture : DOLERITE FRAGMENTS(<5CM),APHYRIC,FINE-TO-MEDIUM-
GRAINED,SIMILAR TO CORES 88-1 THRU 88-3,PEBBLES &/OR
MUD AT 0-13+18-30+35-47+50-61+71-88CM;
Structure : MASSIVE;
Alteration : EXTENSIVELY
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