Leg : 63 Top/Bottom Interval(mm): 50/1500 Analyst: Shibata, T. Hole: 469 Sample Midpoint (m) : 370.00 Core: 40 Top of Core Depth (m) : 368.50 Sect: 1 Top of Section Depth(m): 368.55 LITHOLOGY: DIABASE; Piece No. : PCES 1A (7-40), 1B (40-51), 1C (52-70), 1D (71-91), 1E (92-113), 1F (114-135), 1G (137-142), 1H (142-149); Texture : FINE-TO-MEDIUM-GRAINED,UNIFORM COMPOSITION & TEXTURE,NO CHILLED MARGIN AT TOP OF CORE; Alteration : MOD Comments : MEDIUM GRAY (N5),GREENISH SECONDARY MINERALS; Vesicles : Size(mm): Percent: 0 NON-VESICULAR,VOIDS FILLED WITH CALCITE (1MM ACROSS) SCATTER AT 107-117CM; Phenocrysts: PYROXENE PLAGIOCLASE Replacement: COMBINATION Size(mm): TO 2 AGGS OF GREENISH SECONDARY MINERALS; CALCITE Leg : 63 Top/Bottom Interval(mm): 0/ 850 Analyst: Shibata, T. Hole: 469 Sample Midpoint (m) : 370.85 Core: 40 Top of Core Depth (m) : 368.50 Sect: 2 Top of Section Depth(m): 370.00 LITHOLOGY: DIABASE; Piece No. : PCES 1A (1-10), 1B (10-21), 1C (21-31), 1D (31-36), 1E (37-40), 1F (40-49), 1G (50-66), 1H (66-76), 1I (76-85); Texture : FINE-TO-MEDIUM-GRAINED,COMPOSITION & TEXTURE SIMILAR TO CORE 40-1; Alteration : MOD Comments : GREENISH SECONDARY MINERALS; Vesicles : Size(mm): Percent: 0 NON-VESICULAR,VOIDS FILLED WITH CALCITE; Phenocrysts: PYROXENE PLAGIOCLASE Replacement: COMBINATION AGGS OF GREENISH SECONDARY MINERALS; CALCITE Leg : 63 Top/Bottom Interval(mm): 0/1500 Analyst: Shibata, T. Hole: 469 Sample Midpoint (m) : 373.00 Core: 41 Top of Core Depth (m) : 371.50 Sect: 1 Top of Section Depth(m): 371.50 LITHOLOGY: DIABASE; Piece No. : PCES 1A (1-20), 1B (21-30), 1C (31-41), 1D (40-50), 1E (51-54), 1F (55-62), 1G (62-86), 1H (86-122), 1I (122-130), 1J (131-136), 1K (136-149); Texture : FINE-TO-MEDIUM-GRAINED,PHANERITIC,FINER-GRAINED LAYER (1.5MM THICK) AT 120-122CM; Structure : CALCITE-FILLED PATCHES (TO 3MM) SCATTER AT 120-150CM; Alteration : MOD Comments : GREENISH SECONDARY MINERALS; Vesicles : Size(mm): TO 2 Percent: INTERVALS 37-53+120-150CM; Phenocrysts: PYROXENE Size(mm): TO 2 PLAGIOCLASE Size(mm): TO 2 Replacement: COMBINATION Size(mm): TO 2 AGGS OF GREENISH SECONDARY MINERALS; CALCITE Size(mm): TO 3 SCATTER AT 120-150CM; Leg : 63 Top/Bottom Interval(mm): 0/1500 Analyst: Shibata, T. Hole: 469 Sample Midpoint (m) : 374.50 Core: 41 Top of Core Depth (m) : 371.50 Sect: 2 Top of Section Depth(m): 373.00 LITHOLOGY: DIABASE; Piece No. : PCES 1A (1-72), 1B (70-82), 1C (82-145), 1D (145-150); Texture : SIMILAR COMPOSITION & TEXTURE TO CORE 41-1,FINE-TO- MEDIUM-GRAINED,PHANERITIC; Structure : CALCITE-FILLED PATCHES(TO 2MM) AT 0-10CM,CALCITE- FILLED FRACTURE CUTS ACROSS PCE 1C(125-145CM); Alteration : MOD Vesicles : Size(mm): TO 1 Percent: INTERVAL 0-10CM; Phenocrysts: PYROXENE Size(mm): TO 2 PLAGIOCLASE Size(mm): TO 2 Replacement: COMBINATION Size(mm): TO 2 AGGS OF SECONDARY MINERALS; CALCITE Leg : 63 Top/Bottom Interval(mm): 0/1350 Analyst: Shibata, T. Hole: 469 Sample Midpoint (m) : 375.85 Core: 41 Top of Core Depth (m) : 371.50 Sect: 3 Top of Section Depth(m): 374.50 LITHOLOGY: DIABASE; Piece No. : PCES 1A (1-10), 1B (10-11), 1C (12-27), 1D (28-106), 1E (105-115), 1F (115-118), 1G (117-119), 1H (119-132); Texture : PHANERITIC,PCES 1A-1D+1H FINE-GRAINED,PCES 1E-1G FINE-TO-MEDIUM-GRAINED ALL BOUNDARIES GRADATIONAL; Alteration : MOD Comments : GREENISH SECONDARY MINERALS; Phenocrysts: PYROXENE Size(mm): TO 2 PLAGIOCLASE Size(mm): TO 2 Replacement: COMBINATION Size(mm): TO 2 AGGS OF GREENISH SECONDARY MINERALS; Leg : 63 Top/Bottom Interval(mm): 0/1500 Analyst: Niem, Alan Hole: 469 Sample Midpoint (m) : 379.50 Core: 42 Top of Core Depth (m) : 378.00 Sect: 1 Top of Section Depth(m): 378.00 LITHOLOGY: DIABASE; Piece No. : PCES 1A (0-13), 1B (14-89), 1C (88-104), 1D (104-125), 1E (123-125), 1F (126-141), 1G (141-150); Texture : PHANERITIC,FINE-TO-MEDIUM-GRAINED,SLIGHTLY COARSER AGGS OF SECONDARY MINERALS CONCENTRATED IN A LAYER AT 63-64CM; Structure : CALCITE & PYR-FILLED FRACTURES (0.2MM THICK) AT O-11+78-82+126-150CM; Alteration : MOD Phenocrysts: PYROXENE Size(mm): TO 2 Replacement: Size(mm): TO 2 COMBINATION Size(mm): TO 2 AGGS OF GREENISH SECONDARY MINERALS,CONCENTRATED LAYER AT 63-64CM; Leg : 63 Top/Bottom Interval(mm): 0/1500 Analyst: Niem, Alan Hole: 469 Sample Midpoint (m) : 381.00 Core: 42 Top of Core Depth (m) : 378.00 Sect: 2 Top of Section Depth(m): 379.50 LITHOLOGY: DIABASE; Piece No. : PCES 1A (2-24), 1B (25-32), 1C (32-38), 1D (37-105), 1E (106-149); Texture : SIMILAR TEXTURE & COMPOSITION TO CORE 42-1, PHANERITIC,FINE-TO-MEDIUM-GRAINED,THIN MAFIC MINERAL-RICH LAYER(0.5CM THICK) AT 145.5-146CM & AT 50.5-51CM; Structure : FILLED FRACTURES CUT ACROSS CORE AT 0-10CM & AT 40-71CM; Alteration : MOD Phenocrysts: PYROXENE Size(mm): TO 2 PLAGIOCLASE Size(mm): TO 2 Replacement: Size(mm): 3 COMBINATION Size(mm): TO 2 AGGS OF GREENISH SECONDARY MINERALS FILLS FRACTURES; Leg : 63 Top/Bottom Interval(mm): 0/1500 Analyst: Niem, Alan Hole: 469 Sample Midpoint (m) : 382.50 Core: 42 Top of Core Depth (m) : 378.00 Sect: 3 Top of Section Depth(m): 381.00 LITHOLOGY: DIABASE; Piece No. : PCES 1A (1-15), 1B (16-101), 1C (101-125), 1D (125-145), 1E (145-150); Texture : COMPOSITION & TEXTURE SIMILAR TO CORE 42-1,FINE-TO- MEDIUM-GRAINED WITH SLIGHTLY COARSER GREENISH SECONDARY MINERALS IN A LAYER AT 79-80CM; Structure : SCATTERED VOIDS FILLED WITH CALCITE(0.3-1MM) AT 106-136CM,CALCITE-FILLED VEIN AT 149-150CM; Alteration : MOD Vesicles : Size(mm): Percent: 0 NON-VESICULAR BUT SCATTERED VOIDS FILLED WITH CALCITE AT 106-136CM; Phenocrysts: PYROXENE PLAGIOCLASE Replacement: CALCITE COMBINATION GREENISH SECONDARY MINERALS; Leg : 63 Top/Bottom Interval(mm): 0/1500 Analyst: Hole: 469 Sample Midpoint (m) : 384.00 Core: 42 Top of Core Depth (m) : 378.00 Sect: 4 Top of Section Depth(m): 382.50 LITHOLOGY: DIABASE; Piece No. : PCES 1A (0-10), 1B (10-17), 1C (15-25), 1D (25-41), 1E (41-54), 1F (55-80), 1G (81-97), 1H (97-109), 1I (110-135), 1J (135-150); Texture : FINE-TO-MEDIUM-GRAINED,PHANERITIC,SLIGHTLY DARKER PATCH (1X1CM) AT 44-45; Structure : MOST VOIDS FILLED WITH CALCITE; Phenocrysts: PYROXENE Size(mm): TO 2 PLAGIOCLASE Size(mm): TO 2 Replacement: CALCITE COMBINATION Size(mm): TO 2 AGGS OF GREENISH SECONDARY MINERALS; Leg : 63 Top/Bottom Interval(mm): 0/1200 Analyst: Shibata, T. Hole: 469 Sample Midpoint (m) : 385.20 Core: 42 Top of Core Depth (m) : 378.00 Sect: 5 Top of Section Depth(m): 384.00 LITHOLOGY: DIABASE; Piece No. : PCES 1A (1-57), 1B (55-93), 1C (92-120); Texture : FINE-TO-MEDIUM-GRAINED,PHANERITIC,FINER-GRAINED TOWARDS THE CORE BASE; Structure : 80-90CM SLIGHTLY FINER-GRAINED PATCHES (4CM LENGTH); Alteration : MOD Phenocrysts: PYROXENE Size(mm): TO 2 PLAGIOCLASE Size(mm): TO 2 Replacement: XTLS SCATTER AT 80-90CM & ARE ASSOCIATED WITH SLIGHTLY FINER-GRAINED PATCHES; COMBINATION AGGS OF GREENISH SECONDARY MINERALS; Leg : 63 Top/Bottom Interval(mm): 0/ 350 Analyst: Shibata, T. Hole: 469 Sample Midpoint (m) : 385.85 Core: 42 Top of Core Depth (m) : 378.00 Sect: 6 Top of Section Depth(m): 385.50 LITHOLOGY: DIABASE; Piece No. : PCE 1 (1-35); Texture : FINE-TO-MEDIUM-GRAINED,PHANERITIC,FINER-GRAINED TOWARDS THE CORE BASE BECOMING MICROXTLLINE; Structure : CALCITE-FILLED VOIDS AT 28-34CM; Alteration : MOD Replacement: CALCITE FILLS VOIDS AT 28-34CM; Leg : 63 Top/Bottom Interval(mm): 0/ 650 Analyst: Shibata, T. Hole: 469 Sample Midpoint (m) : 390.65 Core: 43 Top of Core Depth (m) : 387.00 Sect: 3 Top of Section Depth(m): 390.00 LITHOLOGY: SEDIMENT; Leg : 63 Top/Bottom Interval(mm): 65/ 680 Analyst: Shibata, T. Hole: 469 Sample Midpoint (m) : 390.68 Core: 43 Top of Core Depth (m) : 387.00 Sect: 3 Top of Section Depth(m): 390.07 LITHOLOGY: BASALT; Piece No. : PCE NO PCE NUMBER ASSIGNED; Texture : SOME GLASSY RINDS; Structure : SOME FRACTURES FILLED WITH REDDISH-BROWN JASPER, SMALL DOLOMITIC(?) FE-RICH CLAY OCCURS BETWEEN BASALT FRAGMENTS; Comments : OBSERVATIONS TAKEN FROM INITIAL CORE DESCRIPTION; Leg : 63 Top/Bottom Interval(mm): 0/1450 Analyst: Shibata, T. Hole: 469 Sample Midpoint (m) : 397.45 Core: 44 Top of Core Depth (m) : 396.00 Sect: 1 Top of Section Depth(m): 396.00 LITHOLOGY: APHYRIC BASALT; PILLOW BASALT; Piece No. : PCES 1A (0-2), 1B (3-10), 2 (11-18), 3A (19-22), 3B (22-25), 4A (26-31), 4B (31-35), 5 (35-44), 6A (45-49), 6B (50-56), 6C (57-62), 6D (63-68), 6E (68-70), 7 (70-99), 8A (101-104), 8B (105-109), 8C (111-118), 8D (120-125), 8E (126-128), 8F (129-135), 8G (136-140), 8H (141-145); Texture : APHANITIC,SOME FRAGMENTS SHOW THE CHILLED PILLOW STRUCTURE,ROCK.FRAGS 3A+3B ARE MICROXTLLINE CHERT, GREENISH FRAGMENTS (GLASS?,HYALOCLASTIC) FILL INTERSTICES BETWEEN PILLOWS (70-100CM); Structure : CALCITE-FILLED FRACTURES IN PCES 4A-4B+7+8G-8H, ENTIRE SECTION HIGHLY FRACTURED; Alteration : MOD GREENISH FRAGMENTS HIGHLY ALTERED ORIGINALLY GLASS(?); Comments : ROCK.FRAGS 3A+3B ARE GREYISH-RED (5R4/2); Replacement: CALCITE Leg : 63 Top/Bottom Interval(mm): 0/1150 Analyst: Shibata, T. Hole: 469 Sample Midpoint (m) : 398.65 Core: 44 Top of Core Depth (m) : 396.00 Sect: 2 Top of Section Depth(m): 397.50 LITHOLOGY: APHYRIC BASALT; Piece No. : PCES 1 (1-13), 2A (14-16), 2B (17-20), 3 (21-29), 4A (30-34), 4B (35-40), 4C (41-46), 4D (46-49), 5 (51-65), 6A (66-69), 6B (71-75), 7 (77-88), 8A (89-93), 8B (94-98), 8C (99-103), 8D (104-108), 8E (109-112); Texture : APHANITIC,APHYRIC; Structure : MANY BASALT FRAGMENTS HAVE ALTERED PALAG LAYER POSSIBLY DERIVED FROM PILLOWS OR LOBES,THIN CALCITE- FILLED VEINLETS COMMON,HIGHLY FRACTURED; Alteration : MOD Replacement: CALCITE PALAGONITE GREENISH LAYER AT EDGES OF MANY BASALT FRAGMENTS; Leg : 63 Top/Bottom Interval(mm): 0/ 450 Analyst: Shibata, T. Hole: 469 Sample Midpoint (m) : 399.45 Core: 44 Top of Core Depth (m) : 396.00 Sect: 3 Top of Section Depth(m): 399.00 LITHOLOGY: APHYRIC BASALT; Piece No. : PCES 1A (1-7), 1B (8-20), 1C (21-25), 1D (26-30), 1E (31-35), 1F (36-41), 1G (42-45); Texture : APHYRIC,APHANITIC; Structure : BASALT FRAGMENTS POSSIBLY PART OF PILLOWS OR LOBES, HIGHLY FRACTURED,GREENISH EXTENSIVEY ALTERED HYALOCLASTITE WITH CALCITE FILLING INTERSTICES OF PCE 1B; Alteration : MOD Replacement: CALCITE Leg : 63 Top/Bottom Interval(mm): 0/1500 Analyst: Leinen, M. Hole: 469 Sample Midpoint (m) : 406.50 Core: 45 Top of Core Depth (m) : 405.00 Sect: 1 Top of Section Depth(m): 405.00 LITHOLOGY: APHYRIC BASALT; MINOR ROCK TYPE-BAKED CALCAREOUS CLAY; Piece No. : PCES 1A (1-7), 1B (8-10), 2A (14-17), 2B (18-25), 2C (28-32), 3 (35-46), 4A (48-50), 4B (52-56), 5A (61-67), 5B (68-70), 5C (72-76), 6 (77-83), 7A (85-94), 7B (91-95), 7C (95-98), 7D (100-102), 7E (103-109), 7F (110-112), 7G (113-119), 8A (120-121), 8B (123-127), 8C (128-133), 8D (135-139), 9A (140-143), 9B (144-150); Texture : APHANITIC,APHYRIC,BASALTIC BRECCIA; Structure : PCES 2+4A+5B-5C HAVE PALAG FILLING,FRACTURES COMMON SOME FILLED WITH CALCITE & OTHERS WITH RED CHERT OR JASPER,PCES 7A-7D CALCAREOUS CLAY; Alteration : MOD Comments : PCES 7A-7D REDDISH-BROWN,PCES 3+5A LIGHT GREENISH- YELLOW PRODUCT; Replacement: CLAY MINERALS BAKED CALCAREOUS CLAY IN PCES 7A-7D; CALCITE Leg : 63 Top/Bottom Interval(mm): 0/1500 Analyst: Denham, C. Hole: 469 Sample Midpoint (m) : 408.00 Core: 45 Top of Core Depth (m) : 405.00 Sect: 2 Top of Section Depth(m): 406.50 LITHOLOGY: BASALT; Piece No. : PCES 1A (1-11), 1B (11-19), 1C (19-23), 1D (23-35), 1E (35-40), 1F (40-49), 2A (50-55), 2B (55-63), 3 (64-76), 4A (78-84), 4B (85-93), 4C (93-97), 4D (98-102), 4E (104-113), 4F (114-120), 4G (119-124), 4H (124-131), 4I (131-134), 5E (137-146); Texture : APHANITIC; Structure : VEINS FILLED WITH CALCITE & RED CHERT(JASPER?), HIGHLY FRACTURED THROUGHOUT; Alteration : MOD Replacement: CALCITE Leg : 63 Top/Bottom Interval(mm): 0/ 450 Analyst: Denham, C. Hole: 469 Sample Midpoint (m) : 408.45 Core: 45 Top of Core Depth (m) : 405.00 Sect: 3 Top of Section Depth(m): 408.00 LITHOLOGY: APHYRIC BASALT; PILLOW BASALT(?); Piece No. : PCES 1A (1-5), 1B (6-10), 1C (11-15), 2 (17-24), 3A (26-30), 3B (32-37), 4 (40-44); Texture : PCE 1B REDDISH-BROWN CHERT WITH OVAL SHAPED GRAINS; Structure : ALL PCES PART OF PILLOWS(?),HIGHLY FRACTURED WITH DARK GREENISH MATERIAL FILLING,PCE 1B HAS CALCITE VEINLETS; Alteration : MOD Replacement: CALCITE ZEOLITE ID UNCERTAIN,PART OF DARK GREENISH LOW TEMPERATURE ASSEMBLAGE(?); CLAYS ID UNCERTAIN,PART OF DARK GREENISH LOW TEMPERATURE ASSEMBLAGE(?); Leg : 63 Top/Bottom Interval(mm): 0/1400 Analyst: Denham, C. Hole: 469 Sample Midpoint (m) : 411.40 Core: 46 Top of Core Depth (m) : 410.00 Sect: 1 Top of Section Depth(m): 410.00 LITHOLOGY: APHYRIC BASALT; Piece No. : PCES 1 (2-5), 2 (10-25), 3A (26-33), 3B (33-35), 3C (34-40), 3D (41-43), 4 (45-57), 5A (59-68), 5B (68-74), 6 (76-82), 7A (84-90), 7B (89-98), 8A (100-103), 8B (104-107), 8C (108-111), 9A (113-119), 9B (120-124), 10 (128-131), 11 (135-139); Texture : APHANITIC,APHYRIC; Structure : HIGHLY FRACTURED,ALTERED FRACTURES COMMON & FILLED WITH CALCITE & RED CHERT & DARK GREEN MATERIAL (LOW TEMPERATURE ASSEMBLAGE), PCE 6 FRESH GLASS; Alteration : MOD Replacement: ID DARK GREEN MATERIAL UNCERTAIN; CALCITE Leg : 63 Top/Bottom Interval(mm): 0/1050 Analyst: Denham, C. Hole: 469 Sample Midpoint (m) : 412.55 Core: 46 Top of Core Depth (m) : 410.00 Sect: 2 Top of Section Depth(m): 411.50 LITHOLOGY: APHYRIC BASALT; Piece No. : PCES 1A (0-3), 1B (4-15), 1C (15-21), 1D (20-27), 1E (28-35), 1F (36-38), 2 (39-50), 3A (51-60), 3B (62-74), 4A (74-77), 4B (77-80), 4C (80-85), 4D (85-88), 4E (88-92), 4F (93-96), 4G (96-99), 4H (100-103); Texture : APHYRIC,APHANITIC,PCES 1F+4D+4F FRESH GLASSY MARGIN; Structure : PCES 3A-3B LARGE CALCITE VEIN,RED CHERT WITH CALCITE FILLS FRACTURES IN PCE 1E; Alteration : MOD Replacement: CALCITE Leg : 63 Top/Bottom Interval(mm): 0/1400 Analyst: Leinen, M. Hole: 469 Sample Midpoint (m) : 415.40 Core: 47 Top of Core Depth (m) : 414.00 Sect: 1 Top of Section Depth(m): 414.00 LITHOLOGY: BASALT; Piece No. : PCES 1 (1-28), 2A (31-35), 2B (35-40), 2C (41-45), 2D (45-49), 2E (49-50), 2F (50-54), 3 (56-60), 4A (62-71), 4B (71-74), 5A (76-80), 5B (78-83), 6A (86-99), 6B (99-104), 7 (106-118), 8 (120-128), 9A (130-135), 9B (135-139); Texture : APHANITIC,ALTERED HYALOCLASTITE IN PCE 2; Structure : HIGHLY FRACTURED,FRACTURES FILLED WITH CALCITE ARE COMMON; Alteration : MOD Replacement: CALCITE Leg : 63 Top/Bottom Interval(mm): 0/1350 Analyst: Denham, C. Hole: 469 Sample Midpoint (m) : 416.85 Core: 47 Top of Core Depth (m) : 414.00 Sect: 2 Top of Section Depth(m): 415.50 LITHOLOGY: APHYRIC BASALT; Piece No. : PCES 1 (0-30), 2 (30-42), 3 (44-48), 4A (50-60), 4B (60-63), 4C (64-70), 4D (70-75), 5 (77-94), 6A (95-98), 6B (99-106), 6C (107-111), 6D (112-121), 6E (121-125), 6F (125-133); Texture : APHYRIC,APHANITIC,SOME FRAGMENTS OF PCE 1 ARE HYALOCLASTITES; Structure : VEINS FILLED WITH CALCITE & RED CHERT,LIGHT BROWN VEIN IN PCE 2 (SEEMS TO BE ALTERNATING,PERHAPS A SEDIMENT); Alteration : MOD Comments : PCE 1 ACTUALLY CONSISTS OF 21 TOTAL PIECES; Replacement: CALCITE Leg : 63 Top/Bottom Interval(mm): 0/1000 Analyst: Leinen, M. Hole: 469 Sample Midpoint (m) : 418.00 Core: 47 Top of Core Depth (m) : 414.00 Sect: 3 Top of Section Depth(m): 417.00 LITHOLOGY: APHYRIC BASALT; PILLOW BASALT(?); Piece No. : PCES 1A (1-21), 1B (21-25), 1C (23-28), 1D (27-30), 2 (30-60), 3A (61-65), 3B (65-70), 3C (68-74), 3D (74-78), 4 (81-99); Texture : APHYRIC,APHANITIC,FRESH GLASS ON TOP OF PCE 2A, BASALT FRAGMENTS ARE PROBABLY PARTS OF PILLOWS, NO VISIBLE PHENOCRYSTS; Structure : FRACTURES FILLED WITH CALCITE & RED CHERT,HIGHLY FRACTURED; Alteration : MOD Leg : 63 Top/Bottom Interval(mm): 0/1450 Analyst: Pisciotto, K. Hole: 469 Sample Midpoint (m) : 424.45 Core: 48 Top of Core Depth (m) : 423.00 Sect: 1 Top of Section Depth(m): 423.00 LITHOLOGY: HYALOCLASTITE; BASALT; Piece No. : PCES 1A (0-4), 1B (4-9), 1C (10-13), 1D (13-28), 2 (31-34), 3 (36-39), 4 (42-48), 5A (50-55), 5B (55-60), 5C (60-65), 5D (66-69), 6 (70-71), 7A (72-79), 7B (79-83), 8 (84-117), 9 (110-120), 10 (120-128), 11 (128-141); Texture : ALTERED HYALOCLASTIC BRECCIAS CONSISTING OF DARK GREEN BASALTIC FRAGMENTS (ORIGINALLY GLASSY & NOW A LOW TEMPERATURE MINERAL ASSEMBLAGE),SOME FRESH GLASS STILL PRESERVED IN PCES 4+5B+8,BASALT IS APHANITIC & APHYRIC; Structure : BASALT IS HIGHLY FRACTURED WITH FRACTURES AT TIMES FILLED WITH LOW TEMPERATURE MINERALS; Alteration : MOD INTERVALS 40-50+60-87CM,GLASS ALTERED; EXTENSIVELY INTERVALS 0-40+87-141CM,GLASS ALTERED; Comments : COLOR OF HYALOCLASTIC BRECCIAS IS GREENISH-GRAY (5G6/1) TO GREENISH-BLACK (5G2/1); Leg : 63 Top/Bottom Interval(mm): 0/1500 Analyst: Shibata, T. Hole: 469 Sample Midpoint (m) : 426.00 Core: 48 Top of Core Depth (m) : 423.00 Sect: 2 Top of Section Depth(m): 424.50 LITHOLOGY: HYALOCLASTITE; BASALT; Piece No. : PCES 1 (1-6), 2 (6-15), 3 (17-22), 4 (24-30), 5 (30-36), 6 (38-64), 7 (65-88), 8 (89-92), 9 (93-100), 10 (101-108), 11 (110-117), 12 (118-128), 13 (129-144), 14 (146-150); Texture : HYALOCLASTITE CONSISTS OF DARK GREEN BASALTIC FRAGMENTS NOW COMPLETELY REPLACED WITH ALTERATION PRODUCTS & HAS CIRCULAR STRUCTURES WITH RADIATING XTL ALIGNMENT INSIDE,BASALT IS APHANITIC & APHYRIC; Structure : BASALT HAS THIN VEINLETS OF ALTERATION MINERAL (PCES 1+7-11+13); Alteration : EXTENSIVELY INTERVALS 0-70+77-88+93-100+118-150CM; MOD INTERVALS 70-77+88-93+100-118CM; Replacement: UNIDENT.MINS,ALT.GLAS; Leg : 63 Top/Bottom Interval(mm): 0/ 500 Analyst: Grechin, V. Hole: 469 Sample Midpoint (m) : 426.50 Core: 48 Top of Core Depth (m) : 423.00 Sect: 3 Top of Section Depth(m): 426.00 LITHOLOGY: HYALOCLASTITE; BASALT; Piece No. : PCES 1 (1-5), 2A (6-15), 2B (15-30), 2C (31-35), 3 (36-42), 4 (43-49); Texture : BASALTIC BRECCIA(HYALOCLASTITE) HIGHLY ALTERED & FRAGILE CONSISTING OF DARK GREEN BASALTIC FRAGMENTS NOW COMPLETELY ALT.GLAS,BASALT IS APHANITIC & APHYRIC; Structure : BASALT HAS THIN VEILETS OF ALTERATION MINERALS; Alteration : MOD Replacement: UNIDENT.MINS REPLACE GLASS; Leg : 63 Top/Bottom Interval(mm): 0/1500 Analyst: Shibata, T. Hole: 469 Sample Midpoint (m) : 433.50 Core: 49 Top of Core Depth (m) : 432.00 Sect: 1 Top of Section Depth(m): 432.00 LITHOLOGY: APHYRIC BASALT; PILLOW BASALT; Piece No. : PCES 1 (1-4), 2 (5-13), 3 (13-17), 4A (18-19), 4B (20-22), 5A (22-27), 5B (28-40), 6A (40-42), 6B (42-49), 6C (46-54), 7 (55-80), 8A (80-87), 8B (87-93), 8C (94-99), 9 (100-120), 10 (121-127), 11A (128-142), 11B (142-149); Texture : APHANITIC,APHYRIC,MOSTLY FRAGMENTS OF BASALTIC PILLOWS,FRESH GLASS IN PCES 8B+9; Structure : HIGHLY FRACTURED,FRACTURES FILLED WITH CALCITE & RED CHERT & GREEN ALTERATION PRODUCTS; Alteration : MOD Replacement: UNIDENTIFIED GREEN ALTERATION PRODUCTS; CALCITE Vesicles : Size(mm): Percent: 0 Leg : 63 Top/Bottom Interval(mm): 0/ 200 Analyst: Shibata, T. Hole: 469 Sample Midpoint (m) : 433.70 Core: 49 Top of Core Depth (m) : 432.00 Sect: 2 Top of Section Depth(m): 433.50 LITHOLOGY: HYALOCLASTITE; Piece No. : PCE 1 (1-19); Texture : APHYRIC, APHANITIC BASALT,GLASSY BASALT FRAGMENTS CEMENTED TOGETHER WITH ALTERATION PRODUCTS OF LOW TEMPERATURE ASSEMBLAGE; Structure : CALCITE-FILLED VOIDS BETWEEN FRAGMENTS COMMON; Alteration : MOD Vesicles : Size(mm): Percent: 0 Replacement: UNIDENT.MINS; CALCITE Leg : 63 Top/Bottom Interval(mm): 0/1500 Analyst: Shibata, T. Hole: 469 Sample Midpoint (m) : 442.50 Core: 50 Top of Core Depth (m) : 441.00 Sect: 1 Top of Section Depth(m): 441.00 LITHOLOGY: APHYRIC BASALT; PILLOW BASALT; Piece No. : PCES 1 (1-5), 2A (7-12), 2B (13-15), 2C (17-19), 3A (20-27), 3B (28-34), 3C (34-40), 3D (41-44), 4 (44-55), 5 (56-62), 6 (63-76), 7 (77-101), 8 (102-125), 9 (126-143), 10 (145-149); Texture : BASALT APHANITIC,MOST OF BASALT FRAGMENTS ARE FROM PILLOWS,PCES 3B-3C ARE BASALT BRECCIAS,PCES 7-10 ALTERED HYALOCLASTITES WITH ANGULAR BASALT FRAGMENTS; Structure : PCES 7-10 HIGHLY FRACTURED; Alteration : MOD INTERVAL 0-86CM; EXTENSIVELY INTERVAL 86-150CM; Leg : 63 Top/Bottom Interval(mm): 0/1350 Analyst: Shibata, T. Hole: 469 Sample Midpoint (m) : 443.85 Core: 50 Top of Core Depth (m) : 441.00 Sect: 2 Top of Section Depth(m): 442.50 LITHOLOGY: APHYRIC BASALT; Piece No. : PCES 1 (0-6), 2 (7-25), 3A (26-32), 3B (33-42), 3C (43-48), 4A (49-56), 4B (56-60), 4C (61-66), 4D (66-70), 4E (70-75), 4F (75-82), 4G (82-88), 4H (86-89), 4I (90-93), 4J (93-99), 5 (102-107), 6 (111-125), 7 (126-132); Texture : APHANITIC TO PHANERITIC,PCES 4D-4E BASALT BRECCIAS PCES 1+2 FRESH GLASS; Structure : CALCITE & GREEN ALTERATION PRODUCTS-FILLED VEINLETS COMMON,HIGHLY FRACTURED; Alteration : MOD Replacement: UNIDENTIFIED GREEN ALTERATION PRODUCTS; CALCITE Leg : 63 Top/Bottom Interval(mm): 0/1300 Analyst: Shibata, T. Hole: 469 Sample Midpoint (m) : 451.30 Core: 51 Top of Core Depth (m) : 450.00 Sect: 1 Top of Section Depth(m): 450.00 LITHOLOGY: APHYRIC BASALT; Piece No. : PCES 1 (1-19), 2 (20-29), 3 (30-40), 4 (45-48), 5 (50-54), 6A (55-64), 6B (64-69), 7 (70-90), 8 (92-102), 9 (103-109), 10 (111-129); Texture : APHANITIC TO PHANERITIC,APHYRIC,PCES 2+3 BASALT BRECCIAS; Structure : MOD FRACTURED WITH FRACTURES FILLED WITH CALCITE & GREEN ALTERATION MINERALS IN PCES 1+7; Alteration : MOD Replacement: UNIDENTIFIED GREEN ALTERATION MINERALS; CALCITE |
Cite as: Deep Sea Drilling Project (1989): Archive of Core and Site/Hole Data and Photographs from the Deep Sea Drilling Project (DSDP). National Geophysical Data Center, NOAA. doi:10.7289/V54M92G2 [access date]
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