Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 673.50
Core: 68 Top of Core Depth (m) : 670.50
Sect: 2 Top of Section Depth(m): 672.00
LITHOLOGY: PHYRIC BASALT;
Piece No. : PCES 1 (35-44), 2 (45-57), 3 (59-70), 4 (72-88),
5 (92-106), 6 (110-120), 7 (125-150);
Texture : PHYRIC BASALT, FINE-GRAINED WITH PCES 6+7 MEDIUM-
GRAINED, PCE 4 IS COARSER-GRAINED THAN PCES 1-3;
Structure : VERTICAL FRACTURE FILLED WITH BASALT BRECCIA AND
CALCITE CEMENT IN PCE 1, PCE 2 IS FRACTURED BASALT
WITH CALCITE VEIN FILLED, PCE 3 HAS MINOR FRACTURES
AND PCE 4 HAS VEIN NEAR HORIZONTAL AND FILLED WITH
FRACTURED BASALT IN CALCITE, PCES 6-7 HAVE
HORIZONTAL AND IRREGULAR FRACTURES;
Comments : MED GREY (N5);
Vesicles :
Location: Filling: CALCITE, SMEC
MINOR CALCITE FILLED VESICLES, PCE 4 HAS VERY RARE
VESICLES, PCES 6-7 HAVE SMALL VESICLES FILLED WITH
CALCITE AND SMECTITE;
Replacement: CALCITE
SMECTITE
Leg : 81 Top/Bottom Interval(mm): 0/1470 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 674.97
Core: 68 Top of Core Depth (m) : 670.50
Sect: 3 Top of Section Depth(m): 673.50
LITHOLOGY: PHYRIC BASALT;
Piece No. : PCES 1 (9-11), 2 (13-26), 3 (27-35), 4 (38-41),
5 (42-51), 6 (55-61), 7 (64-74), 8 (77-81),
9 (83-90), 10 (94-102), 11 (104-118), 12 (121-135),
13 (137-147);
Texture : PHYRIC, PCE 11 HAS BASALT BRECCIA FILLED WITH SMEC
AND CALCITE CEMENT IN A LARGE FRACTURE;
Structure : MUCH FRACTURING ALL SMECTITE FILLED WITH THE LARGER
FRACTURES HAVING CALCITE SECOND-STAGE FILL, ONE
LARGE FRACTURE 1CM WIDE IN PCE 11;
Alteration : ALTERATION RIMS;
Comments : MED LIGHT GREY (N6);
Vesicles : Size(mm): 1 Percent:
Location: Filling: SMEC, CALCITE
1MM VESICLES RARE THROUGHOUT, 2 LARGE VESICLES
FILLED WITH SMECTITE AND CALCITE;
Replacement: CALCITE
SMECTITE
Leg : 81 Top/Bottom Interval(mm): 0/1440 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 676.44
Core: 68 Top of Core Depth (m) : 670.50
Sect: 4 Top of Section Depth(m): 675.00
LITHOLOGY: PHYRIC BASALT;
SIMILAR TO 68-3;
Piece No. : PCES 1 (0-7), 2 (10-18), 3 (20-32);
Structure : FRACTURES MAINLY NEAR HORIZONTAL;
Vesicles :
Location: Filling: SMEC
MINOR SMEC FILLED VESICLES;
Replacement: SMECTITE
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 681.50
Core: 69 Top of Core Depth (m) : 680.00
Sect: 1 Top of Section Depth(m): 680.00
LITHOLOGY: PHYRIC BASALT;
Piece No. : PCES 1 (0-4), 2 (7-21), 3A (23-32), 3B (31-38),
3C (38-46), 3D (46-56), 3E (56-63), 3F (62-67),
3G (69-76), 3H (80-91), 3I (91-102), 3J (102-111),
3K (110-119), 3L (1180125), 3M (124-137),
3N (130-150);
Texture : PHYRIC BASALT, SOME GLOMEROPHYRIC TEXTURES, BELOW
60CM BECOMING COARSER-GRAINED OTHERWISE SIMILAR
THROUGHOUT;
Structure : FRACTURES ABUNDANT, NUMEROUS HORIZONTAL FRACTURES
BUT LARGELY IRREGULAR AND FILLED WITH SMECTITE AND
LATH CALCITE;
Comments : MEDIUM LIGHT GREY (N6);
Vesicles : Size(mm): 1 Percent:
Location: Filling: SMECTITE, CALCITE
SCATTERED MINOR 1MM SMECTITE FILLED VESICLES AND
RARELY CALCITE;
Replacement: SMECTITE
CALCITE
LATH CALCITE FILLING FRACTURES;
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 683.00
Core: 69 Top of Core Depth (m) : 680.00
Sect: 2 Top of Section Depth(m): 681.50
LITHOLOGY: GLOMEROPHYRIC BASALT;
SIMILAR TO 69-1;
Piece No. : PCES 1A (0-7), 1B (7-19), 1C (19-22), 1D (22-36),
1E (36-49), 1F (69-80), 2A (80-96), 2B (95-109),
2C (109-112), 2D (112-119), 2E (119-127),
2F (127-133), 2G (1132-150);
Texture : UNIFORM GLOMEROPHYRIC BASALT AS ABOVE (69-1),
ELONGATE CLASTS 4CM WITH MINOR PYRITE IN UPPER
CLASTS, TWO RESORBED CLASTS OF VESICULAR BASALT-
SLIGHTLY DARKER (MEDIUM DARK GREY N4);
Structure : FRACTURES AS BEFORE;
Vesicles : Size(mm): 5 Percent:
Location: Filling: SMECTITE, CALCITE
Replacement: SMECTITE
CALCITE
PYRITE
MINOR;
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 684.50
Core: 69 Top of Core Depth (m) : 680.00
Sect: 3 Top of Section Depth(m): 683.00
LITHOLOGY: PHYRIC BASALT;
SIMILAR TO 69-2;
Piece No. : PCES 1A (0-9), 1B (9-22), 1C (24-27), 1D (28-36),
2 (39-42), 3 (45-52), 4 (56-72), 5 (74-81),
6A (84-100), 6B (99-106), 6C (105-112),
6D (112-122), 6E (130-139), 6F (138-150);
Texture : ONE SMALL RESORBED CLAST AT 13-14CM;
Structure : LESS FRACTURED;
Leg : 81 Top/Bottom Interval(mm): 0/ 700 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 685.20
Core: 69 Top of Core Depth (m) : 680.00
Sect: 4 Top of Section Depth(m): 684.50
LITHOLOGY: PHYRIC BASALT;
SAME AS ABOVE;
Piece No. : PCES 1A (0-12), 1B (12-23), 2A (25-30), 2B (30-34),
3 (36-45), 4 (47-57), 5 (60-71);
Leg : 81 Top/Bottom Interval(mm): 720/1220 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 685.72
Core: 69 Top of Core Depth (m) : 680.00
Sect: 4 Top of Section Depth(m): 685.22
LITHOLOGY: PHYRIC BASALT;
Piece No. : PCES 6A-C (72-122);
Texture : PCE 6A IS A GRADATIONAL UNIT AS ABOVE, PCE 6B
BECOMES DARKER AND FINER-GRAINED, PCE 6C IS A FINE-
GRAINED GLOMEROPHYRIC BASALT;
Comments : PCE 6C IS MEDIUM DARK GREY (N4);
Vesicles : Size(mm): <1 Percent:
Location: Filling: CALCITE
VESICLES ARE CALCITE FILLED AND SLIGHTLY MORE
ABUNDANT;
Replacement: CALCITE
Leg : 81 Top/Bottom Interval(mm): 1220/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 686.00
Core: 69 Top of Core Depth (m) : 680.00
Sect: 4 Top of Section Depth(m): 685.72
LITHOLOGY: BAKED SEDIMENT;
Piece No. : INTERVAL (122-150CM);
Texture : FINE-GRAINED INDURATED CLAYSTONE WITH VOLCANIC
LAPILLI CLASTS;
Comments : OLIVE BLACK (5Y2/1);
Leg : 81 Top/Bottom Interval(mm): 0/1030 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 687.03
Core: 69 Top of Core Depth (m) : 680.00
Sect: 5 Top of Section Depth(m): 686.00
LITHOLOGY: VOLCANIC LAPILLI;
Piece No. : INTERVALS (0-45), (45-103);
Texture : LAPILLI CLASTS UP TO 1CM;
Structure : FAINT HORIZONTAL BEDDING IN INTERVAL (45-103CM);
Comments : OLIVE GREY (5Y4/1), BACKGROUND SEDIMENT IS MUDDY, IN
(45-103) BACKGROUND SEDIMENT MORE SANDY,
TERRIGENOUS, STILL HARD;
Leg : 81 Top/Bottom Interval(mm): 1030/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 687.50
Core: 69 Top of Core Depth (m) : 680.00
Sect: 5 Top of Section Depth(m): 687.03
LITHOLOGY: SEDIMENT(SANDSTONE);
Piece No. : INTERVALS (103-150);
Comments : COARSE, FRIABLE AND UNCEMENTED AND PROBABLY STILL
WITH VOLCANIC ASH COMPONENT, DARK GREENISH GREY
(5GY4/1);
Leg : 81 Top/Bottom Interval(mm): 0/ 700 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 688.20
Core: 69 Top of Core Depth (m) : 680.00
Sect: 6 Top of Section Depth(m): 687.50
LITHOLOGY: SEDIMENT(SANDSTONE);
AS ABOVE;
Comments : SANDSTONE AS ABOVE BECOMING EVEN COARSER-GRAINED AT
BASE, FRIABLE AND BIOTITE;
Leg : 81 Top/Bottom Interval(mm): 0/1430 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 690.93
Core: 70 Top of Core Depth (m) : 689.50
Sect: 1 Top of Section Depth(m): 689.50
LITHOLOGY: PHYRIC BASALT;
Piece No. : PCES 1 (1-7), 2 (9-21), 3 (24-35), 4 (39-61),
5A (63-100), 5B (100-145);
Texture : PCES (1+2, 5A(80-100CM)+5B) ARE GLOMEROPHYRIC BASALT
AND INTERVAL (80-100CM) IS COARSER-GRAINED AND REST
IS FINE-GRAINED, 80CM HAS A RESORBED CLAST OF
VESICULAR ALTERED BASALT/AGGLOMERATE, CHILLED
GLASSY MARGIN AT 24CM;
Structure : INTERVAL (80-143CM) HAS HORIZONTAL AND VERTICAL
FRACTURES WITH SMEC AND LATER CALCITE FILLED;
Comments : 24CM IS PROBABLE ZONE OF CORE LOSS- BASE OF FLOW
WITH SEDIMENT (COARSER SANDSTONE) AT TOP OVER
CHILLED GLASSY MARGIN 5MM THICK, PCES (1+2, 80-143)
ARE MED GREY (N5), PCE 3 IS MEDIUM DARK GREY (N4);
Vesicles : Size(mm): 5-10 Percent:
Location: Filling: CALCITE, SMECTITE
PCES 1+2 HAVE VESICLES UP TO (1-.5CM) AND SMEC
FILLED WITH RARE PYRITE, PCE 3 HAS ELONGATE
VERTICALLY ORIENTED VESICLES LINED/FILLED WITH
SMEC, (37-80CM) HAS ABUNDANT SMALL CALCITE AND
SMECTITE FILLED VESICLES BECOMING LARGER AROUND
70-80CM WITH MORE SMEC, (80-143CM) IS LESS
VESICULAR, BASE HAS VERTICAL VESICULAR TRAIN AND
CALCITE FILLED AND SMECTITE LINED;
Replacement: CALCITE
SMECTITE
Leg : 81 Top/Bottom Interval(mm): 0/ 570 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 691.57
Core: 70 Top of Core Depth (m) : 689.50
Sect: 2 Top of Section Depth(m): 691.00
LITHOLOGY: BASALT;
Piece No. : PCES 1 (0-35), 2 (35-47), 3 (50-57);
Texture : INTERVAL (0-22CM) IS FINE-GRAINED GLOMEROPHYRIC
BASALT, INTERVAL (22-32CM) IS FINER-GRAINED CHILLED
CONTACT WITH UNDERLYING SANDSTONE PARTLY
INCORPORATED INTO BASE OF FLOW, INTERVAL (32-57) IS
SANDSTONE- COARSE-GRAINED AND FELDSPATHIC PROBABLY
VOLCANICLASTIC WELL-BEDDED AND PLANAR, COARSE BASE
HAS LARGE BASALT CLASTS 2CM IN DIAMETER;
Structure : INTERVAL (32-57CM) IS WELL-BEDDED AND PLANAR
SANDSTONE;
Comments : INTERVAL (22-32CM) IS MEDIUM GREY (N5), INTERVAL
(32-57CM) HAS GREENISH GREY (5GY6/1) CALCITE CEMENT,
COARSE BASE HAS BIVALVES AND OTHER BROKEN-UP
MICROFAUNA;
Vesicles : INTERVAL (0-22) HAS VESICLE TRAINS;
Replacement: CALCITE
INTERVAL (0-22CM) AS WELL AS (35-57CM) HAS CALCITE
CEMENT PRESENT;
SMECTITE
INTERVAL (0-22CM);
Leg : 81 Top/Bottom Interval(mm): 600/1350 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 692.35
Core: 70 Top of Core Depth (m) : 689.50
Sect: 2 Top of Section Depth(m): 691.60
LITHOLOGY: HYALOCLASTITE;
Piece No. : INTERVAL (60-135CM);
Texture : AGGLOMERATE, VARIABLE CLAST SIZE- ANGULAR, PROBABLY
VITRIC BASALTIC MATERIAL OF LAPILLI SIZE (0.5-1CM);
Comments : OLIVE BLACK (5Y2/1), CEMENTED WITH SILICA PHASE(?)
AND CALCITE;
Replacement: CALCITE
Leg : 81 Top/Bottom Interval(mm): 0/1300 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 700.30
Core: 71 Top of Core Depth (m) : 699.00
Sect: 1 Top of Section Depth(m): 699.00
LITHOLOGY: VOLCANIC BRECCIA;
HYALOCLASTITE;
Piece No. : INTERVAL (0-130);
Texture : COARSE AGGLOMERATE, CLASTS GENERALLY (1-2CM) BUT
SOME UP TO 6CM, CLASTS ARE BASALT OR BASALTIC GLASS,
SOME LARGE CLASTS SHOW VESICLES;
Comments : BROWNISH BLACK (5YR2/1), WELL PACKED AND CEMENTED
WITH WHITE SILICA/CALCITE/ANALCITE-ZEOLITE PHASE
(N9), 130CM IS POSSIBLE BASE OF ONE UNIT CHANGING TO
SLIGHTLY FINE-GRAINED AGGLOMERATE BELOW;
Vesicles : SOME LARGE CLASTS SHOW VESICLES;
Replacement: CALCITE
ANALCITE
ZEOLITE PHASE;
Leg : 81 Top/Bottom Interval(mm): 0/ 200 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 700.70
Core: 71 Top of Core Depth (m) : 699.00
Sect: 2 Top of Section Depth(m): 700.50
LITHOLOGY: VOLCANIC BRECCIA;
AS ABOVE (71-1);
Piece No. : PCE 1 (0-20);
Texture : BASALT CLASTS ARE 8CM AND SUBROUNDED;
Vesicles : ONE VESICLE;
Leg : 81 Top/Bottom Interval(mm): 0/1370 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 709.87
Core: 72 Top of Core Depth (m) : 708.50
Sect: 1 Top of Section Depth(m): 708.50
LITHOLOGY: VOLCANIC BRECCIA;
AS ABOVE;
Piece No. : INTERVAL (0-137CM);
Texture : AGGLOMERATE-HYALOCLASTITE, CLASTS UP TO 8CM;
Comments : WHITE CEMENT PHASE;
Vesicles : VESICULAR BASALT;
Leg : 81 Top/Bottom Interval(mm): 0/1390 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 711.39
Core: 72 Top of Core Depth (m) : 708.50
Sect: 2 Top of Section Depth(m): 710.00
LITHOLOGY: VOLCANIC BRECCIA;
AS ABOVE;
Piece No. : INTERVAL (0-139CM);
Texture : AGGLOMERATE WITH CLASTS UP TO AND >13CM;
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 713.00
Core: 72 Top of Core Depth (m) : 708.50
Sect: 3 Top of Section Depth(m): 711.50
LITHOLOGY: VOLCANIC BRECCIA;
AS ABOVE;
Piece No. : INTERVAL (0-150CM);
Texture : AGGLOMERATE, SOME CLASTS ARE WELL ROUNDED AND CLAST
SIZE >10CM;
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 719.50
Core: 73 Top of Core Depth (m) : 718.00
Sect: 1 Top of Section Depth(m): 718.00
LITHOLOGY: VOLCANIC BRECCIA;
AS ABOVE;
Piece No. : INTERVAL (0-150CM);
Texture : AGGLOMERATE, CLASTS UP TO 10CM, VERY POORLY SORTED;
Structure : NO EVIDENCE OF GRADING OR BEDDING-CHAOTIC;
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 721.00
Core: 73 Top of Core Depth (m) : 718.00
Sect: 2 Top of Section Depth(m): 719.50
LITHOLOGY: VOLCANIC BRECCIA;
AS ABOVE, MASSIVE, TUFF AND LAPILLI;
Piece No. : INTERVAL (0-150CM);
Texture : AGGLOMERATE, FINER-GRAINED (TUFF AT 104-120+130-145)
AND COARSER-GRAINED (LAPILLI AT 125-130);
Structure : INTERVAL (104-145) HAS PLANAR BEDDING, DEFINITE
EVIDENCE OF BEDDING IN FIRST 5CM WITH LAYERS OF
FINER AND COARSER MATERIAL (FROM CURRENT SORTING ?),
MASSIVE AND CHAOTIC (5-104CM);
Comments : (104-145CM) EVIDENCE OF SORTING UNDER CURRENT
ACTIVITY, COLOR (5Y2/1);
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 722.50
Core: 73 Top of Core Depth (m) : 718.00
Sect: 3 Top of Section Depth(m): 721.00
LITHOLOGY: VOLCANIC BRECCIA;
TUFF;
Piece No. : INTERVAL (0-150CM);
Texture : INTERVAL (0-65) IS AGGLOMERATE, INTERVAL (65-100) IS
LAMINATED AND CURRENT SORTED, INTERVAL (100-145) IS
COARSER-GRAINED AGGLOMERATE (BRECCIA SIZE) WITH SOME
BEDDING AND SORTING, INTERVAL (145-END) IS FINE-
GRAINED, (65-100+145-END) IS TUFF UNIT;
Structure : WEAK BEDDING IN FIRST 20CM BUT ESSENTIALLY MASSIVE
(0-65), (100-145) HAS SOME BEDDING;
Comments : WHITE CEMENT IS PRESENT THROUGHOUT;
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 724.00
Core: 73 Top of Core Depth (m) : 718.00
Sect: 4 Top of Section Depth(m): 722.50
LITHOLOGY: VOLCANIC BRECCIA;
VOLCANOGENIC SANDSTONE;
Piece No. : INTERVAL (0-150CM);
Texture : VOLCANOGENIC SANDSTONE, (3-4MM) COARSE-GRAINED IN
(0-40+120-END), FINE-GRAINED (1-2MM) IN (40-120),
OVERALL POORLY SORTED SANDY TUFF;
Comments : GREENISH BLACK, SOME DETRITAL QUARTZ BUT LARGELY
VOLCANIC ORIGIN;
Leg : 81 Top/Bottom Interval(mm): 0/ 800 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 724.80
Core: 73 Top of Core Depth (m) : 718.00
Sect: 5 Top of Section Depth(m): 724.00
LITHOLOGY: VOLCANIC BRECCIA;
VOLCANOGENIC SANDSTONE AS ABOVE, LAPILLI TUFF;
Piece No. : INTERVAL (0-80CM);
Texture : VOLCANOGENIC SANDSTONE;
Structure : BETWEEN (30-50CM) IS WEAKLY BEDDED LAPILLI TUFF;
Comments : WHITE CEMENT PHASE AS BEFORE;
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 729.00
Core: 74 Top of Core Depth (m) : 727.50
Sect: 1 Top of Section Depth(m): 727.50
LITHOLOGY: VOLCANIC BRECCIA;
HYALOCLASTITE;
Piece No. : INTERVAL (0-150CM);
Texture : ANGULAR CLASTS OF (1-5MM) GLASS, SOME BASALT,
UNIFORM LAPILLI TUFF AS IN PREVIOUS SECTION;
Structure : FRACTURES MINOR AND BOTH HORIZONTAL AND VERTICAL;
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 730.50
Core: 74 Top of Core Depth (m) : 727.50
Sect: 2 Top of Section Depth(m): 729.00
LITHOLOGY: VOLCANIC BRECCIA;
HYALOCLASTITE, SAME AS ABOVE;
Piece No. : INTERVAL (0-150CM);
Texture : LAPILLI SIZE AS BEFORE, VERY UNIFORM WITH NO
GRADING, LAPILLI TUFF;
Leg : 81 Top/Bottom Interval(mm): 0/ 850 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 731.35
Core: 74 Top of Core Depth (m) : 727.50
Sect: 3 Top of Section Depth(m): 730.50
LITHOLOGY: VOLCANIC BRECCIA;
HYALOCLASTITE, SAME AS ABOVE;
Piece No. : INTERVAL (0-85CM);
Texture : ONE VERY LARGE BASALT CLAST (BETWEEN 41-55CM AND
>14CM IN DIAMETER);
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 738.50
Core: 75 Top of Core Depth (m) : 737.00
Sect: 1 Top of Section Depth(m): 737.00
LITHOLOGY: VOLCANIC BRECCIA;
HYALOCLASTITE, SAME AS ABOVE;
Piece No. : INTERVAL (0-150CM);
Texture : MEDIUM TO FINE-GRAINED, (1-4MM) CLASTS ARE VITRIC,
SOME HINTS OF LAMINATIONS THROUGHOUT, COARSER CLASTS
OF (4-10MM) WITH SOME LAMINATIONS BETWEEN (90-130CM)
AND (130-END) IS FINE-GRAINED AND GLASSY BASALT,
LAPILLI TUFF AS BEFORE;
Comments : GREYISH BLACK (N2);
Vesicles : Size(mm): 5 Percent:
Location: Filling: CALCITE, SMECTITE
(130-END) HAS LARGE VESICLES CALCITE FILLED AND
SMECTITE LINED;
Leg : 81 Top/Bottom Interval(mm): 0/ 310 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 738.81
Core: 75 Top of Core Depth (m) : 737.00
Sect: 2 Top of Section Depth(m): 738.50
LITHOLOGY: VESICULAR BASALT;
Piece No. : PCES 1 (0-6), 2 (8-11), 3 (15-21), 4 (24-31);
Texture : FINE-GRAINED;
Comments : PCES (1-5A), ARE MEDIUM LIGHT GREY (N6);
Vesicles : Size(mm): 1-6 Percent:
Location: Filling: CALCITE, SMECTITE
Shape : CIRCULAR
PCES (1-5A) ARE VESICULAR BASALT WITH VESICLES UP
TO 5MM AND CALCITE FILLED AND SMECTITE LINED/
FILLED, PCES (1-4) CONTAIN LARGE IRREGULAR
VESICLES WHILE PCE 5A HAS ABUNDANT SMALL CIRCULAR
VESICLES;
Replacement: CALCITE
SMECTITE
Leg : 81 Top/Bottom Interval(mm): 410/ 950 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 739.45
Core: 75 Top of Core Depth (m) : 737.00
Sect: 2 Top of Section Depth(m): 738.91
LITHOLOGY: GLOMEROPHYRIC BASALT;
Piece No. : PCES 5B-E (41-95);
Texture : COARSE-GRAINED, GLOMEROPHYRIC;
Structure : MINOR FRACTURING HORIZONTAL AND VERTICAL AND FILLED
WITH CALCITE FOLLOWED BY SMECTITE;
Comments : MEDIUM LIGHT GREY (N6);
Vesicles : RARE VESICLES;
Replacement: CALCITE
SMECTITE
Leg : 81 Top/Bottom Interval(mm): 950/1100 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 739.60
Core: 75 Top of Core Depth (m) : 737.00
Sect: 2 Top of Section Depth(m): 739.45
LITHOLOGY: VESICULAR BASALT;
Piece No. : PCES 6 (98-102), 7 (104-110);
Texture : FINER-GRAINED;
Comments : PCES 6+7 COULD BE BASE OF FLOW;
Vesicles : Size(mm): 1-6 Percent:
Location: Filling: CALCITE
VESICULAR BASALT, CALCITE FILLED AND IRREGULAR(?);
Replacement: CALCITE
Leg : 81 Top/Bottom Interval(mm): 0/1450 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 747.95
Core: 76 Top of Core Depth (m) : 746.50
Sect: 1 Top of Section Depth(m): 746.50
LITHOLOGY: GLOMEROPHYRIC BASALT;
Piece No. : PCES 1 (0-7), 2A-E (9-145);
Texture : INTERVAL (0-119) IS COARSE TO MEDIUM-GRAINED
GLOMEROPHYRIC BASALT, INTERVAL (119-137) IS FINER-
GRAINED UNIT;
Structure : INTERVAL (137-145) IS CALCITE VEINED, POSSIBLE
PILLOW MARGIN AT 137CM;
Comments : (50-53CM) HAS ALMOST COMPLETELY RESORBED CLAST OF
VESICULAR (CALCITE FILLED) BASALT, INTERVAL
(137-145) IS SHARP ANGULAR CONTACT TO GLASSY BLACK
(N1) BASALT- POSSIBLY PILLOW MARGIN;
Vesicles : Size(mm): 1-2 Percent:
Location: Filling: CALCITE, SMECTITE
Shape : SPHERICAL
INTERVAL (0-50) HAS ABUNDANT (1-2MM) SPHERICAL
VESICLES CALCITE +/OR SMECTITE FILLED WITH SOME
SCATTERED IRREGULAR (2CM) VERTICALLY ORIENTED,
INTERVAL (50-119) IS AS ABOVE BUT VESICLES ARE ALL
SMECTITE FILLED AND BECOME SMALLER AND RARER,
INTERVAL (119-137) HAS ABUNDANT VESICLES- VERTICAL
AND SOME IRREGULAR UP TO 2CM VESICLES FILLED WITH
CALCITE AND SMECTITE, INTERVAL (137-145) HAS SMALL
CALCITE FILLED VESICLES;
Replacement: CALCITE
SMECTITE
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 749.50
Core: 76 Top of Core Depth (m) : 746.50
Sect: 2 Top of Section Depth(m): 748.00
LITHOLOGY: VESICULAR BASALT;
Piece No. : PCES 1A (0-19), 1B (19-28), 2A (33-42), 2B (42-51),
2C (53-61), 2D (61-73), 2E (74-80), 2F (80-89),
2G (89-97), 2H (98-106), 2I (107-116), 2J (117-135),
2K (135-143), 2L (137-143), 3 (146-150);
Texture : FINE-GRAINED GLASSY MARGIN AT TOP, INTERVAL (0-19)
HAS DIFFUSE IRREGULAR DARKER PATCHES THAT COULD BE
RESORBED GLASSY BASALT (SAME IN 36-48), INTERVAL
(50-108) IS COARSER-GRAINED, GLASSY RESORBED CLASTS
(73-85+117-135), (51-61CM) IS UNIFORM BASALT,
(108-150) IS FINER-GRAINED, (108-116) HAS GLASS RIND
OF BOTH ABOVE AND BELOW BASALT UNITS, (61-73CM) IS
BRECCIATED AND HAS CURVED GLASS WHICH IS CEMENTED
CALCITE BETWEEN LOWER GLASSY (PILLOW ?) MARGIN,
(116-117) HAS GLASS RIND OF BOTH ABOVE AND BELOW
UNITS;
Structure : INTERVAL (135-150) HAS CALCITE FRACTURES;
Comments : AT 61CM THERE IS AN IRREGULAR CONTACT;
Vesicles : Size(mm): 5-20 Percent:
Location: Filling: CALCITE, CLAY
Location: Filling: SMECTITE
VESICULAR BASALT, PCE 1A HAS ELONGATE IRREGULAR
VESICLES CALCITE FILLED SOME HAVE CALCITE RIMS AND
ARE CLAY FILLED, PCE 1B HAS MINOR VESICLES SMEC
FILLED, PCES 2A-B HAS ABUNDANT 1-2MM VESICLES
(SOME UP TO 1CM), INTERVAL (51-61) HAS RARE LARGE
VERTICAL FILLED VESICLES, INTERVAL (73-85) IS
HIGHLY VESICULAR BASALT WITH CALCITE LINED AND
CLAY FILLED VESICLES OF ABOUT 1-10MM, INTERVAL
(85-108) HAS SCATTERED LARGE IRREGULAR 5-10MM
VESICLES CALCITE LINED/FILLED AND SOME CLAY
FILLED, INTERVAL (108-116) HAS MORE ABUNDANT
VESICLES AND INTERVAL (117-135) HAS LARGE (TO 1CM)
CALCITE AND LATER CLAY FILLED FRACTURES, INTERVAL
(135-END) VESICLES IN GLASS ARE CALCITE FILLED;
Replacement: CALCITE
SMECTITE
CLAY
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 751.00
Core: 76 Top of Core Depth (m) : 746.50
Sect: 3 Top of Section Depth(m): 749.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (0-10), 2A (12-32), 2B (22-36), 2C (36-42),
2D (43-52), 3 (54-59), 4 (62-68), 5 (73-90),
6A (94-116), 6B (116-127), 6C (126-140),
6D (140-150);
Texture : FINE-GRAINED, GLASSY RIND, BASALT WITH RESORBED
IRREGULAR GLASS PATCHES (0-20), (20-42CM) IS COARSE-
GRAINED, INTERVAL (42-53CM) FINE-GRAINED WITH GLASSY
RIND AT BASE, PCE 3 HAS GLASSY RIND OF UNDERLYING
BASALT PILLOW, PCES 4+5 ARE SIMILAR TO (42-53CM),
PCE 6A HAS GLASSY RIND AT TOP, INTERVAL (108-145CM)
IS COARSE-GRAINED AND INTERVAL (145-150) BECOMES
FINER-GRAINED WITH RESORBED GLASS CLASTS;
Structure : CALCITE CEMENT FILLING LARGE FRACTURES;
Comments : MEDIUM-GREY (N5);
Vesicles :
Location: Filling: CALCITE, CLAY
Location: Filling: QUARTZ
PCES 1+2A HAVE ABUNDANT CALCITE FILLED AND LATER
CALCITE AND CLAY FILLED VESICLES, PCES 2B-C ARE
LESS VESICULAR WITH VESICLES RARE BUT LARGE,
INTERVAL (108-145) HAS RARE LARGE VESICLES THAT
ARE QUARTZ FILLED;
Replacement: CALCITE
CLAY
QUARTZ
Leg : 81 Top/Bottom Interval(mm): 0/1460 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 752.46
Core: 76 Top of Core Depth (m) : 746.50
Sect: 4 Top of Section Depth(m): 751.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (0-10), 2A (12-69), 2B (71-100),
2C (103-106), 2D (112-118), 2E (121-146);
Texture : PCE 1 HAS GLASSY RIND AND IS FINE-GRAINED BASALT
WITH RESORBED CLASTS, INTERVAL (11-42) HAS GLASSY
RIND AT TOP WITH FRACTURED GLASS CEMENTED WITH CLAY
AND CALCITE BELOW AND RESORBED GLASSY CLASTS,
INTERVAL (44-92) IS A COARSE-GRAINED GLOMEROPHYRIC
BASALT, INTERVAL (92-101) HAS A FINE-GRAINED ZONE AS
ABOVE, INTERVAL (104-109) HAS A GLASSY RIND AS ABOVE
AND REST OF CORE HAS FINE ZONE AS ABOVE;
Structure : INTERVAL (44-92) HAS HORIZONTAL FRACTURES, CALCITE
FILLED FRACTURES IN PCE 1;
Vesicles : Size(mm): TO 10 Percent:
Location: Filling: CALCITE, CLAY
PCE 1 HAS VESICLES FILLED WITH CALCITE AND
CALCITE/CLAY, INTERVAL (44-92) HAS MINOR LARGE
VESICLES FILLED WITH CALCITE AND CLAY, INTERVAL
(11-42) HAS LARGE VESICLES UP TO 1CM;
Replacement: CALCITE
CLAY
Leg : 81 Top/Bottom Interval(mm): 0/ 950 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 753.45
Core: 76 Top of Core Depth (m) : 746.50
Sect: 5 Top of Section Depth(m): 752.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (0-50), 2 (52-56), 3 (59-70), 4 (72-82),
5 (84-93);
Texture : GLASSY RIND AT TOP OF CORE WITH FIRST 24CM FINE-
GRAINED AND NEXT (24-48CM) COARSER, INTERVAL
(48-58CM) IS A FINE UNIT WITH GLASSY RIND AT BASE;
Comments : GREENISH BLACK (5G2/1);
Leg : 81 Top/Bottom Interval(mm): 590/ 950 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 753.45
Core: 76 Top of Core Depth (m) : 746.50
Sect: 5 Top of Section Depth(m): 753.09
LITHOLOGY: VOLCANIC TUFF/LAPILLI;
Piece No. : INTERVAL (59-95CM);
Texture : VOLCANIC TUFF/LAPILLI THAT HAS BEEN LITHIFIED
(BAKED ?) WITH CLASTS UP TO 5MM;
Comments : VOLCANIC TUFF/LAPILLI COULD BE BAKED(?);
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 757.50
Core: 77 Top of Core Depth (m) : 756.00
Sect: 1 Top of Section Depth(m): 756.00
LITHOLOGY: VOLCANIC BRECCIA;
MASSIVE;
Piece No. : NO PCE NUMBERS- (0-150);
Texture : BRECCIA, CLASTS MOSTLY OF VESICULAR BASALT SOME WITH
GLASSY RINDS AND SOME ANGULAR, CLASTS RANGE FROM 2CM
TO 10CM WITH SMALLER CLASTS GLASSY;
Comments : MATRIX IS WHITE CEMENT PHASE (ZEOL ?) AND NO
EVIDENCE OF BEDDING;
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 759.00
Core: 77 Top of Core Depth (m) : 756.00
Sect: 2 Top of Section Depth(m): 757.50
LITHOLOGY: VOLCANIC BRECCIA;
SAME AS 77-1;
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 760.50
Core: 77 Top of Core Depth (m) : 756.00
Sect: 3 Top of Section Depth(m): 759.00
LITHOLOGY: VOLCANIC BRECCIA;
SAME AS 77-1;
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 762.00
Core: 77 Top of Core Depth (m) : 756.00
Sect: 4 Top of Section Depth(m): 760.50
LITHOLOGY: VOLCANIC BRECCIA;
SAME AS 77-1;
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 763.50
Core: 77 Top of Core Depth (m) : 756.00
Sect: 5 Top of Section Depth(m): 762.00
LITHOLOGY: VOLCANIC BRECCIA;
SAME AS 77-1;
Leg : 81 Top/Bottom Interval(mm): 0/ 650 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 764.15
Core: 77 Top of Core Depth (m) : 756.00
Sect: 6 Top of Section Depth(m): 763.50
LITHOLOGY: VOLCANIC BRECCIA;
SAME AS 77-1;
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 767.00
Core: 78 Top of Core Depth (m) : 765.50
Sect: 1 Top of Section Depth(m): 765.50
LITHOLOGY: VOLCANIC BRECCIA;
SAME AS 77-1;
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 768.50
Core: 78 Top of Core Depth (m) : 765.50
Sect: 2 Top of Section Depth(m): 767.00
LITHOLOGY: VOLCANIC BRECCIA;
SAME AS 77-1;
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 770.00
Core: 78 Top of Core Depth (m) : 765.50
Sect: 3 Top of Section Depth(m): 768.50
LITHOLOGY: VOLCANIC BRECCIA;
SAME AS 77-1;
Leg : 81 Top/Bottom Interval(mm): 0/ 680 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 770.68
Core: 78 Top of Core Depth (m) : 765.50
Sect: 4 Top of Section Depth(m): 770.00
LITHOLOGY: VOLCANIC BRECCIA;
SAME AS 77-1;
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 776.50
Core: 79 Top of Core Depth (m) : 775.00
Sect: 1 Top of Section Depth(m): 775.00
LITHOLOGY: VOLCANIC BRECCIA;
SAME AS 77-1;
Texture : VOLCANIC LAPILLI/BRECCIA THAT IS ANALCITE CEMENTED,
CHAOTIC WITH NO BEDDING;
Structure : MASSIVE;
Comments : ANALCITE CEMENTED;
Replacement: ANALCITE
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 778.00
Core: 79 Top of Core Depth (m) : 775.00
Sect: 2 Top of Section Depth(m): 776.50
LITHOLOGY: VOLCANIC BRECCIA;
SAME AS 77-1;
Texture : CLASTS ARE VERY LARGE, SANDSTONE CLASTS- ONE EACH
FROM (53-70, 79-82, 123-131);
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 779.50
Core: 79 Top of Core Depth (m) : 775.00
Sect: 3 Top of Section Depth(m): 778.00
LITHOLOGY: VOLCANIC BRECCIA;
SAME AS 77-1;
Texture : CLASTS ARE VERY LARGE, SANDSTONE CLASTS- ONE EACH
FROM (53-70, 79-82, 123-131);
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 781.00
Core: 79 Top of Core Depth (m) : 775.00
Sect: 4 Top of Section Depth(m): 779.50
LITHOLOGY: VOLCANIC BRECCIA;
SAME AS 77-1;
Texture : SOME FINER ZONES BELOW 33CM BUT BASALT CLASTS STILL
LARGE;
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 786.00
Core: 80 Top of Core Depth (m) : 784.50
Sect: 1 Top of Section Depth(m): 784.50
LITHOLOGY: VOLCANIC BRECCIA;
SAME AS 77-1;
Texture : LARGE ANGULAR CLASTS (12-22CM+133-150CM);
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 787.50
Core: 80 Top of Core Depth (m) : 784.50
Sect: 2 Top of Section Depth(m): 786.00
LITHOLOGY: VOLCANIC BRECCIA;
SAME AS 77-1;
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 789.00
Core: 80 Top of Core Depth (m) : 784.50
Sect: 3 Top of Section Depth(m): 787.50
LITHOLOGY: VOLCANIC BRECCIA;
SAME AS 77-1;
Texture : LARGE CLASTS THROUGHOUT OF HIGHLY VESICULAR BASALT
WITH CALCITE INFILLS OR COARSE-GRAINED GLOMEROPHYRIC
BASALT, CLASTS AT (0-18, 23-48, 66-77, 92-100,
101-111, 111-144);
Leg : 81 Top/Bottom Interval(mm): 0/ 240 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 789.24
Core: 80 Top of Core Depth (m) : 784.50
Sect: 4 Top of Section Depth(m): 789.00
LITHOLOGY: VOLCANIC BRECCIA;
SAME AS 77-1;
Texture : BASALT CLASTS AS PREVIOUS CORE;
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 795.50
Core: 81 Top of Core Depth (m) : 794.00
Sect: 1 Top of Section Depth(m): 794.00
LITHOLOGY: VOLCANIC BRECCIA;
SAME AS 77-1;
Texture : LARGE CLASTS PRESENT IN (12-24, 75-83, 86-96,
97-120, 144-150);
Leg : 81 Top/Bottom Interval(mm): 0/ 420 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 795.92
Core: 81 Top of Core Depth (m) : 794.00
Sect: 2 Top of Section Depth(m): 795.50
LITHOLOGY: VOLCANIC BRECCIA;
AGGLOMERATE AS 77-1;
Piece No. : PCES INTERVAL (0-25), 1 (25-38), 2 (39-41);
Comments : AT INTERVAL (0-25) PCE NUMBER WAS FORGOTTEN;
Leg : 81 Top/Bottom Interval(mm): 420/ 850 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 796.35
Core: 81 Top of Core Depth (m) : 794.00
Sect: 2 Top of Section Depth(m): 795.92
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES INTERVAL (42-59), 3 (62-70), 4 (72-76),
5A (79-85);
Texture : VERY FINE-GRAINED BASALT WITH GLASSY TOP AND
INCORPORATED GLASS, RESORBED;
Structure : SOME GLASS INFILLS FRACTURED;
Comments : AT INTERVALS (0-25+42-59) PCE NUMBERS WERE FORGOTTEN
Vesicles :
Location: Filling: ANALCITE, CALCITE
SOME VESICLES- RARE WHITE ANALCITE/CALCITE FILLED;
Replacement: ANALCITE
CALCITE
Leg : 81 Top/Bottom Interval(mm): 850/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 797.00
Core: 81 Top of Core Depth (m) : 794.00
Sect: 2 Top of Section Depth(m): 796.35
LITHOLOGY: VESICULAR BASALT;
Piece No. : PCES 5A (85-90), 5B (90-135), 5C (138-142),
5D (145-150);
Texture : MEDIUM-GRAINED, HIGHLY VESICULAR BASALT;
Vesicles :
Location: Filling: ANALCITE, CALCITE
Location: Filling: SMECTITE
VESICLES FILLED WITH SMEC+ANALCITE+CALCITE, SOME
HORIZONTAL VESICLE TRAINS;
Replacement: ANALCITE
CALCITE
SMECTITE
Leg : 81 Top/Bottom Interval(mm): 0/1390 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 798.39
Core: 81 Top of Core Depth (m) : 794.00
Sect: 3 Top of Section Depth(m): 797.00
LITHOLOGY: GLOMEROPHYRIC BASALT;
Piece No. : PCES 1 (0-16), 2A (17-33), 2B (34-37), 2C (35-53),
2D (52-67), 2E (67-75), 2F (75-83), 2G (82-92),
2H (92-96), 3 (98-101), 4 (104-121), 5 (123-130),
6 (132-137);
Texture : GLOMEROPHYRIC, COARSE-GRAINED;
Structure : SOME SMEC FILLED FRACTURES- VERTICAL AND HORIZONTAL
AND VERY MINOR;
Vesicles :
Location: Filling: ANALCITE, CALCITE
Location: Filling: SMECTITE
VESICLES COMMON THROUGHOUT, MOSTLY ANACITE FILLED
AT TOP THEN CALCITE LOWER DOWN (CA 50CM) AND
BELOW 90CM ALL SMEC;
Replacement: ANALCITE
CALCITE
SMECTITE
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 805.00
Core: 82 Top of Core Depth (m) : 803.50
Sect: 1 Top of Section Depth(m): 803.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1A (0-10), 1B (9-21), 1C (18-32), 1D (32-37),
2A (39-55), 2B (56-70), 2C (70-79), 2D (79-86),
3 (87-96), 5B (106-121);
Texture : FINE-GRAINED, SOME BRECCIATION (PCES 1A-D) WITH
PCES (2A-B) HIGHLY BRECCIATED, PCE 3 HAS ONE BASALT
FRAGMENT, LAPILLI SIZE BASALT CLASTS SET IN GLASS
AND SMEC FILL FRACTURES;
Structure : FRACTURED BASALT (PCES 1A-D), PCES 2A-B FRACTURES
FILLED WITH LAPILLI SIZE BASALT CLASTS SET IN GLASS
AND SMEC, SLIGHT FRACTURING PCE 5B;
Vesicles :
Location: Filling: ANALCITE, SMEC
Shape : IRREGULAR
PCES 1A-D HAS IRREGULAR VESICLES PATCHES SMEC AND
ANALCITE FILLED, INTERVAL (67-87) IS VESICULAR
BASALT, PCE 5B HAS RARE VESICLES SMEC FILLED;
Replacement: ANALCITE
SMECTITE
Leg : 81 Top/Bottom Interval(mm): 980/1060 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 804.56
Core: 82 Top of Core Depth (m) : 803.50
Sect: 1 Top of Section Depth(m): 804.48
LITHOLOGY: SEDIMENT (SANDSTONE);
Piece No. : PCES 4 (98-102), 5A (104-106);
Texture : SANDSTONE, MEDIUM-GRAINED, VOLCANICLASTIC(?), PCE 5A
IS BAKED MUDSTONE;
Structure : PLANAR BEDDING;
Comments : DARK GREENISH GREY (5GY4/1), PCE 5A IS BAKED
MUDSTONE;
Leg : 81 Top/Bottom Interval(mm): 0/ 560 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 805.56
Core: 82 Top of Core Depth (m) : 803.50
Sect: 2 Top of Section Depth(m): 805.00
LITHOLOGY: VESICULAR BASALT;
Piece No. : PCES 1 (0-10), 2A (12-29), 2B (29-46), 2C (46-56);
Texture : COARSE-GRAINED, GLASSY RIND AT SHARP UPPER CONTACT
TO FINE-GRAINED BASALT WITH VERY FRACTURED GLASSY
BASE (38-56CM);
Structure : VERY FRACTURED GLASSY BASE (38-56), MINOR FRACTURING
(0-40CM);
Vesicles :
Location: Filling: CALCITE,SMECTITEI
Shape : RREGULAR
VESICULAR BASALT WITH IRREGULAR VESICLES SMECTITE
FILLED WITH SOME CALCITE (0-40CM), LARGE IRREGULAR
CALCITE/SMECTITE VESICLES (38-56CM);
Replacement: CALCITE
SMECTITE
Leg : 81 Top/Bottom Interval(mm): 560/ 900 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 805.90
Core: 82 Top of Core Depth (m) : 803.50
Sect: 2 Top of Section Depth(m): 805.56
LITHOLOGY: SANDSTONE WITH BRECCIATED BASALT;
Piece No. : PCES 3 (59-71), 4 (73-76), 5 (79-85), 6 (87-89);
Texture : SANDSTONE IS FINE TO MEDIUM-GRAINED, BAKED SANDSTONE
WITH BASALT FRAGMENTS BRECCIATED;
Comments : DARK GREENISH GREY (5GY4/1), BASALT FRAGMENTS WERE
BRECCIATED DURING FLOW INTO SANDSTONE;
Leg : 81 Top/Bottom Interval(mm): 910/1430 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 806.43
Core: 82 Top of Core Depth (m) : 803.50
Sect: 2 Top of Section Depth(m): 805.91
LITHOLOGY: BASALT;
Piece No. : PCES 7A (91-95), 7B (95-112), 7C (112-120),
7D (119-129), 8 (130-143);
Texture : FINE-GRAINED, SOME RESORBED CLASTS;
Structure : ABUNDANT FRACTURES FILLED WITH CALCITE AND SMECTITE,
FRACTURES ARE VERY IRREGULAR;
Replacement: CALCITE
SMECTITE
Leg : 81 Top/Bottom Interval(mm): 0/ 600 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 807.10
Core: 82 Top of Core Depth (m) : 803.50
Sect: 3 Top of Section Depth(m): 806.50
LITHOLOGY: BASALT;
Piece No. : PCES 1 (0-11), 2 (13-23), 3 (26-60);
Texture : FINE-GRAINED BASALT, PCES 1+3 ARE RUBBLE;
Structure : SMEC FILLED FRACTURES;
Vesicles : MINOR LARGE VESICLES;
Replacement: SMECTITE
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 814.50
Core: 83 Top of Core Depth (m) : 813.00
Sect: 1 Top of Section Depth(m): 813.00
LITHOLOGY: PHYRIC BASALT;
Piece No. : PCES 1A (0-41), 1B (40-51), 1C (51-65), 1D (64-75),
1E (75-96), 1F (95-116), 1G (115-127), 1H (127-150);
Texture : VERY COARSE-GRAINED, PHYRIC;
Structure : RARE FRACTURES FILLED WITH SMECTITE+CALCITE+PYRITE;
Vesicles :
Location: Filling: SMECTITE, CALCITE
Shape : IRREGULAR
ABUNDANT IRREGULAR SMECTITE FILLED VESICLES UP TO
1-2MM THROUGHOUT AND SOME ARE CALCITE FILLED;
Replacement: SMECTITE
PYRITE
CALCITE
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 816.00
Core: 83 Top of Core Depth (m) : 813.00
Sect: 2 Top of Section Depth(m): 814.50
LITHOLOGY: PHYRIC BASALT;
SAME AS 83-1;
Piece No. : PCES 1 (0-70), 2 (72-110), 3 (113-117), 4 (120-129),
5 (132-150);
Structure : CALCITE FILLED VEIN AT 110CM;
Vesicles : Size(mm): <1 Percent:
VESICLES MUCH SMALLER- 1MM AND STILL ABUNDANT
TOWARDS BASE;
Replacement: CALCITE
Leg : 81 Top/Bottom Interval(mm): 0/ 120 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 816.12
Core: 83 Top of Core Depth (m) : 813.00
Sect: 3 Top of Section Depth(m): 816.00
LITHOLOGY: BASALT RUBBLE;
Piece No. : PCE 1 (0-12);
Texture : RUBBLE;
Leg : 81 Top/Bottom Interval(mm): 130/ 260 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 816.26
Core: 83 Top of Core Depth (m) : 813.00
Sect: 3 Top of Section Depth(m): 816.13
LITHOLOGY: BASALT;
Piece No. : PCE 2 (14-26);
Texture : FINER-GRAINED;
Structure : SOME PYRITE FILLED FRACTURES;
Comments : FINER-GRAINED BASALT THEN 83-2;
Vesicles :
Location: Filling: SMECTITE
ABUNDANT FINE VESICLES SMECTITE FILLED;
Replacement: SMECTITE
Leg : 81 Top/Bottom Interval(mm): 0/ 500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 880.00
Core: 90 Top of Core Depth (m) : 879.50
Sect: 1 Top of Section Depth(m): 879.50
LITHOLOGY: SEDIMENT;
Leg : 81 Top/Bottom Interval(mm): 500/ 760 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 880.26
Core: 90 Top of Core Depth (m) : 879.50
Sect: 1 Top of Section Depth(m): 880.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 1A (50-76);
Texture : (50-57) IS SANDSTONE AS ABOVE, INTERVAL (57-76) IS
APHYRIC, FINE-GRAINED BASALT;
Comments : DARK GREY (N3);
Vesicles : Size(mm): MINOR VE Percent: SICLE
Location: S- CALCITE Filling: FILLED;
Replacement: CALCITE
Leg : 81 Top/Bottom Interval(mm): 770/ 950 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 880.45
Core: 90 Top of Core Depth (m) : 879.50
Sect: 1 Top of Section Depth(m): 880.27
LITHOLOGY: PHYRIC BASALT;
Piece No. : PCE 1B (77-95);
Texture : VERY FINE-GRAINED PHYRIC BASALT;
Structure : HORIZONTAL FRACTURES CALCITE FILLED;
Comments : MEDIUM DARK GREY (N4);
Vesicles :
Location: Filling: SMECTITE,CALCITE
VESICLES SMALL AND FILLED WITH SMECTITE WITH RARE
LARGER ONES CALCITE FILLED;
Replacement: CALCITE
SMECTITE
Leg : 81 Top/Bottom Interval(mm): 990/1250 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 880.75
Core: 90 Top of Core Depth (m) : 879.50
Sect: 1 Top of Section Depth(m): 880.49
LITHOLOGY: PHYRIC BASALT;
Piece No. : PCE 2 (99-125);
Texture : FINE-GRAINED PHYRIC BASALT, BECOMES COARSE-GRAINED;
Vesicles : Size(mm): 1 Percent:
Location: Filling: SMECTITE
ABUNDANT SMALL VESICLES ALL SMECTITE FILLED;
Replacement: SMECTITE
Leg : 81 Top/Bottom Interval(mm): 0/1320 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 882.32
Core: 90 Top of Core Depth (m) : 879.50
Sect: 2 Top of Section Depth(m): 881.00
LITHOLOGY: GLOMEROPHYRIC BASALT;
Piece No. : PCES 1A (0-65), 1B (65-111), 1C (110-132);
Texture : VERY UNIFORM MEDIUM-GRAINED, GLOMEROPHYRIC;
Structure : MINOR FRACTURES MOSTLY SMECTITE FILLED AND RARELY
CALCITE FILLED;
Comments : MEDIUM LIGHT GREY (N4);
Vesicles : Size(mm): TO 3 Percent:
Location: Filling: SMECTITE
Shape : IRREGULAR
ABUNDANT FINE VESICLES THROUGHOUT BECOMING LARGER
BELOW 60CM (UP TO 3MM) ALL SMECTITE FILLED;
Replacement: SMECTITE
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 884.00
Core: 90 Top of Core Depth (m) : 879.50
Sect: 3 Top of Section Depth(m): 882.50
LITHOLOGY: GLOMEROPHYRIC BASALT;
Piece No. : PCES 1A (0-53), 1B (53-92), 1C (92-96), 1D (96-129),
1E (130-150);
Texture : MEDIUM-GRAINED, GLOMEROPHYRIC;
Structure : FRACTURES IRREGULAR INCREASING IN FREQUENCY TOWARDS
BASE;
Comments : NO VARIATION THROUGH CORE;
Vesicles :
Location: Filling: SMECTITE
Shape : IRREGULAR
ABUNDANT IRREGULAR VESICLES SMECTITE FILLED;
Replacement: SMECTITE
Leg : 81 Top/Bottom Interval(mm): 0/ 810 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 884.81
Core: 90 Top of Core Depth (m) : 879.50
Sect: 4 Top of Section Depth(m): 884.00
LITHOLOGY: GLOMEROPHYRIC BASALT;
AS ABOVE;
Piece No. : PCES 1A (0-13), 1B (14-19), 1C (20-25), 1D (25-38),
1E (39-41), 1F (41-54), 1G (50-81);
Texture : POSSIBLY BECOMING FINER-GRAINED;
Vesicles : VESICLES REDUCED IN SIZE BELOW 60CM;
Leg : 81 Top/Bottom Interval(mm): 0/ 200 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 927.20
Core: 95 Top of Core Depth (m) : 927.00
Sect: 1 Top of Section Depth(m): 927.00
LITHOLOGY: SEDIMENT (MUDSTONE);
Piece No. : PCE 1 (0-20);
Texture : FINE-GRAINED, INDURATED;
Comments : MEDIUM GREY (N5);
Leg : 81 Top/Bottom Interval(mm): 150/ 370 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 927.37
Core: 95 Top of Core Depth (m) : 927.00
Sect: 1 Top of Section Depth(m): 927.15
LITHOLOGY: SEDIMENT (SANDSTONE);
Piece No. : PCES INTERVAL (15-21), 2 (22-27), 3A (30-37);
Texture : COARSE-GRAINED, INDURATED;
Comments : DARK GREENISH GREY (5GY4/1), PCE 2 INCLUDES A THIN
VERY FINE-GRAINED BASALT FLOW- DARK GREY (N3);
Leg : 81 Top/Bottom Interval(mm): 360/ 520 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 927.52
Core: 95 Top of Core Depth (m) : 927.00
Sect: 1 Top of Section Depth(m): 927.36
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 3B (36-41), 3C (41-52);
Texture : VERY FINE-GRAINED, APHYRIC AT TOP BECOMING PHYRIC;
Comments : COLOR GRADES FROM N3 TO N4;
Vesicles :
Location: Filling: SMECTITE
VESICLES RARE AND SMECTITE FILLED;
Replacement: SMECTITE
Leg : 81 Top/Bottom Interval(mm): 520/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 928.50
Core: 95 Top of Core Depth (m) : 927.00
Sect: 1 Top of Section Depth(m): 927.52
LITHOLOGY: GLOMEROPHYRIC BASALT;
Piece No. : PCES 3D (52-60), 3E (60-77), 3F (77-95),
4A (98-125), 4B (125-127), 5A (130-135),
5B (134-138), 6 (140-150);
Texture : GLOMEROPHYRIC, FINE-GRAINED;
Structure : RARE FRACTURES NEAR VERTICAL;
Comments : MEDIUM DARK GREY (N4);
Vesicles :
Location: Filling: SMECTITE
VERY RARE VESICLES FILLED WITH GREEN SMECTITE;
Replacement: SMECTITE
SMECTITE IS GREEN;
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 930.00
Core: 95 Top of Core Depth (m) : 927.00
Sect: 2 Top of Section Depth(m): 928.50
LITHOLOGY: GLOMEROPHYRIC BASALT;
Piece No. : PCES 1 (0-25), 2 (27-54), 3A (55-73), 3B (74-83),
4 (85-97), 5 (99-105), 6 (109-115), 7A (117-127),
7B (124-129), 8 (130-137), 9 (139-150);
Texture : GLOMEROPHYRIC, MEDIUM-GRAINED WITH BASALT BECOMING
COARSER BELOW 50CM;
Structure : FRACTURES ARE MINOR AND MAINLY ORIENTED AT 60
DEGREES TO HORIZONTAL WITH SOME AT 90 DEGREES TO
THIS DIRECTION, FRACTURES ARE FILLED WITH SMECTITE;
Vesicles : Size(mm): Percent: 0
NON-VESICULAR;
Replacement: SMECTITE
Leg : 81 Top/Bottom Interval(mm): 0/ 310 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 930.31
Core: 95 Top of Core Depth (m) : 927.00
Sect: 3 Top of Section Depth(m): 930.00
LITHOLOGY: GLOMEROPHYRIC BASALT;
SIMEILAR TO 95-2;
Piece No. : PCES 1 (0-10), 2 (12-18), 3 (20-31);
Texture : COARSE-GRAINED, GLOMEROPHYRIC;
Structure : RARE SMEC FILLED FRACTURES WITH THREE FRACTURES
NOTED HAVING NO COMMON DIRECTION;
Vesicles : Size(mm): Percent: 0
NON-VESICULAR;
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 938.00
Core: 96 Top of Core Depth (m) : 936.50
Sect: 1 Top of Section Depth(m): 936.50
LITHOLOGY: GLOMEROPHYRIC BASALT;
Piece No. : PCES 1A-E (0-49), 2A-C (50-66), 3A-D (69-80),
4 (105-110), 5 (112-127), 6 (130-139), 7 (141-150);
Texture : GLOMEROPHYRIC, COARSE-GRAINED WITH A MINOR VERY
COARSE-GRAINED ZONE AROUND 90CM;
Structure : FRACTURES FAIRLY COMMON AND GENERALLY <1MM ACROSS
AND FILLED WITH SMEC, LARGER FRACTURES ARE SMECTITE
LINED AND ZEOLITE FILLED (ANALCITE ?), DOMINANT
FRACTURING IS HORIZONTAL AND AT 60 DEGREES TO
HORIZONTAL;
Comments : MEDIUM DARK GREY (N4);
Vesicles : Size(mm): Percent: 0
NON-VESICULAR;
Replacement: SMECTITE
ZEOLITE
COULD BE ANALCITE;
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 939.50
Core: 96 Top of Core Depth (m) : 936.50
Sect: 2 Top of Section Depth(m): 938.00
LITHOLOGY: GLOMEROPHYRIC BASALT;
Piece No. : PCES 1 (0-6), 2 (8-17), 3 (19-52), 4 (54-60),
5 (62-90), 6 (91-98), 7 (100-116), 8 (118-123),
9 (125-134), 10 (134-140), 11 (142-150);
Texture : GLOMEROPHYRIC, COARSE-GRAINED, NO VARIATIONS IN
GRAIN SIZE DISCERNIBLE APART FROM TWO MINOR COARSER
ZONES (15CM+79CM);
Structure : FRACTURING COMMON WITH NO PREFERRED ORIENTATION
ALTHOUGH THREE WIDE SMEC FILLED FRACTURES NEAR BASE
ARE PARALLEL AND NEAR HORIZONTAL;
Vesicles : Size(mm): Percent: 0
NON-VESICULAR;
Replacement: SMECTITE
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 941.00
Core: 96 Top of Core Depth (m) : 936.50
Sect: 3 Top of Section Depth(m): 939.50
LITHOLOGY: GLOMEROPHYRIC BASALT;
SIMILAR TO 96-2;
Piece No. : PCES 1 (0-6), 2 (9-13), 3 (25-73), 4 (74-100),
5 (102-112), 6 (113-125), 7 (125-135), 8 (136-150);
Texture : GLOMEROPHYRIC, COARSE-GRAINED, A COARSER BAND
BETWEEN 85-105CM;
Structure : FRACTURED BADLY, FRACTURES INFILLED WITH BLACK SMEC,
FRACTURES ARE NEAR HORIZONTAL (UP TO 20 DEGREES FROM
HORIZONTAL);
Vesicles : Size(mm): Percent: 0
NON-VESICULAR;
Replacement: SMECTITE
BLACK;
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 942.50
Core: 96 Top of Core Depth (m) : 936.50
Sect: 4 Top of Section Depth(m): 941.00
LITHOLOGY: GLOMEROPHYRIC BASALT;
SIMILAR TO 96-3;
Piece No. : PCES 1 (0-44), 2 (45-65), 3 (66-92), 4 (94-96),
5 (99-127), 6 (129-140), 7 (142-150);
Texture : UNIFORM GLOMEROPHYRIC BASALT;
Structure : FRACTURING BECOMING VERY INTENSE LOCALLY, DOMINANT
DIRECTION STILL NEAR HORIZONTAL BUT CROSS-CUTTING
FRACTURES OCCUR AT MANY ANGLES, SMEC FILLS MOST
FRACTURES;
Vesicles :
Location: Filling: SMECTITE
ONE VESICLE AT 110CM FILLED WITH BLACK SMECTITE;
Replacement: SMECTITE
BLACK;
Leg : 81 Top/Bottom Interval(mm): 0/1460 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 943.96
Core: 96 Top of Core Depth (m) : 936.50
Sect: 5 Top of Section Depth(m): 942.50
LITHOLOGY: GLOMEROPHYRIC BASALT;
SIMILAR TO 96-4;
Piece No. : PCES 1 (0-4), 2 (6-13), 3 (15-21), 4 (22-31),
5 (33-37), 6 (39-47), 7 (48-51), 8 (54-71),
9 (73-89), 10 (90-146);
Texture : UNIFORMLY GLOMEROPHYRIC THROUGHOUT;
Structure : FRACTURES AGAIN VERY COMMON AND MAINLY NEAR
HORIZONTAL AND FILLED WITH SMEC, LARGER FRACTURES
HAVE ANALCITE AS LATER PHASE;
Vesicles : Size(mm): TO 5 Percent:
Location: Filling: SMECTITE
Shape : ROUND
MINOR LARGE ROUND VESICLES FILLED WITH SMECTITE
AND UP TO 0.5CM IN PCE 6;
Replacement: SMECTITE
Leg : 81 Top/Bottom Interval(mm): 0/1020 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 945.02
Core: 96 Top of Core Depth (m) : 936.50
Sect: 6 Top of Section Depth(m): 944.00
LITHOLOGY: GLOMEROPHYRIC BASALT;
SIMILAR TO 96-5;
Piece No. : PCES 1 (0-12), 2 (14-22), 3 (25-38), 4 (41-45),
5 (46-53), 6 (55-63), 7 (65-68), 8 (70-81),
9 (83-102);
Texture : COARSE-GRAINED WITH UNIFORM GRAIN SIZE,
GLOMEROPHYRIC;
Structure : HIGHLY FRACTURED AND FILLED WITH SMEC AND ANALCITE;
Replacement: SMECTITE
ANALCITE
Leg : 81 Top/Bottom Interval(mm): 0/1400 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 947.40
Core: 97 Top of Core Depth (m) : 946.00
Sect: 1 Top of Section Depth(m): 946.00
LITHOLOGY: GLOMEROPHYRIC BASALT;
Piece No. : PCES 1 (0-39), 2 (40-71), 3 (74-139);
Texture : GLOMEROPHYRIC, COARSE-GRAINED;
Structure : VERY FREQUENT FRACTURING, FRACTURES MAINLY ALIGNED
WITHIN 20 DEGREES OF HORIZONTAL BUT MAINLY CROSS-
CUTTING FRACTURES AT NO PARTICULAR ALIGNMENT;
Comments : MEDIUM DARK GREY (N4) BASALT;
Vesicles : Size(mm): Percent: 0
NONE OBVIOUS;
Leg : 81 Top/Bottom Interval(mm): 0/1400 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 948.90
Core: 97 Top of Core Depth (m) : 946.00
Sect: 2 Top of Section Depth(m): 947.50
LITHOLOGY: GLOMEROPHYRIC BASALT;
Piece No. : PCES 1 (0-39), 2 (40-71), 3 (74-139);
Texture : GLOMEROPHYRIC, COARSE-GRAINED;
Structure : VERY FREQUENT FRACTURING, FRACTURES MAINLY ALIGNED
WITHIN 20 DEGREES OF HORIZONTAL BUT MAINLY CROSS-
CUTTING FRACTURES AT NO PARTICULAR ALIGNMENT;
Comments : MEDIUM DARK GREY (N4);
Vesicles : Size(mm): Percent: 0
NO VESICLES OBVIOUS;
Leg : 81 Top/Bottom Interval(mm): 0/1450 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 948.95
Core: 97 Top of Core Depth (m) : 946.00
Sect: 2 Top of Section Depth(m): 947.50
LITHOLOGY: GLOMEROPHYRIC BASALT;
SIMILAR TO PREVIOUS SECTION;
Piece No. : PCES 1 (0-20), 2 (23-39), 3 (40-120), 4 (122-145);
Texture : GLOMEROPHYRIC, ONE COARSER BAND AT 50CM BUT
OTHERWISE UNIFORM, COARSE-GRAIN SIZE;
Structure : FRACTURING BECOMING MORE INTENSE IN SIMILAR FASHION
TO THAT PREVIOUSLY DESCRIBED WITH SOME PCES
COMPLETELY SHATTERED;
Leg : 81 Top/Bottom Interval(mm): 0/1360 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 950.36
Core: 97 Top of Core Depth (m) : 946.00
Sect: 3 Top of Section Depth(m): 949.00
LITHOLOGY: GLOMEROPHYRIC BASALT;
SIMILAR TO PREVIOUS SECTION;
Piece No. : PCES 1 (0-11), 2 (13-39), 3 (40-68), 4 (69-100),
5 (102-136);
Texture : GLOMEROPHYRIC, UNIFORM COARSE-GRAIN SIZE BUT ONE
COARSER BAND AT 35-40CM;
Structure : FRACTURING INTENSE AS PREVIOUSLY DESCRIBED- NEAR
HORIZONTAL DOMINATING WITH CROSS-CUTTING FRACTURES
ORIENTED IN NO PARTICULAR DIRECTION ALTHOUGH SOME IN
DIRECTION OF ABOUT 60 DEGREES;
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 952.00
Core: 97 Top of Core Depth (m) : 946.00
Sect: 4 Top of Section Depth(m): 950.50
LITHOLOGY: GLOMEROPHYRIC BASALT;
SIMILAR TO PREVIOUS SECTION;
Piece No. : PCES 1 (0-47), 2 (50-62), 3 (65-150);
Texture : GLOMEROPHYRIC;
Structure : ORIENTATION OF FRACTURES BECOMING DOMINANTLY 60
DEGREES BELOW 50CM, SOME FRACTURES HAVE LATE
CALCITE/ANALCITE FILLS (AFTER SMECTITE);
Replacement: SMECTITE
CALCITE
ANALCITE
Leg : 81 Top/Bottom Interval(mm): 0/1400 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 953.40
Core: 97 Top of Core Depth (m) : 946.00
Sect: 5 Top of Section Depth(m): 952.00
LITHOLOGY: GLOMEROPHYRIC BASALT;
SIMILAR TO PREVIOUS SECTION;
Piece No. : PCES 1 (0-63), 2 (65-106), 3 (109-140);
Texture : GLOMEROPHYRIC, COARSE-GRAINED;
Structure : FRACTURES FILLED WITH SMEC AND ONE SHOWING ANALCITE
FILL, FRACTURES DOMINANTLY MARKED 60 DEGREES TO
HORIZONTAL;
Replacement: SMECTITE
ANALCITE
Leg : 81 Top/Bottom Interval(mm): 0/1400 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 954.90
Core: 97 Top of Core Depth (m) : 946.00
Sect: 6 Top of Section Depth(m): 953.50
LITHOLOGY: GLOMEROPHYRIC BASALT;
SIMILAR TO PREVIOUS SECTION;
Piece No. : PCES 1 (0-36), 2 (37-816), 3 (84-91), 4 (94-96),
5 (97-118), 6 (121-140);
Texture : BASALT TEXTURE UNCHANGED FROM PREVIOUS SECTION;
Structure : HIGHLY FRACTURED BASALT AS BEFORE, FRACTURES
DOMINANTLY CA 60 DEGREES FROM HORIZONTAL BUT OTHERS
ARE APPARENTLY RANDOM;
Leg : 81 Top/Bottom Interval(mm): 0/ 420 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 955.42
Core: 97 Top of Core Depth (m) : 946.00
Sect: 7 Top of Section Depth(m): 955.00
LITHOLOGY: GLOMEROPHYRIC BASALT;
SIMILAR TO PREVIOUS SECTION;
Piece No. : PCE 1 (0-42);
Texture : GLOMEROPHYRIC;
Structure : FRACTURES REVERT TO ABOUT 20 DEGREES FROM
HORIZONTAL;
Comments : ADDITIONAL AMOUNT OF CORE HERE POSSIBLY RESULTING
FROM SPACING OUT OF BASALT DURING CURATION;
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 956.50
Core: 98 Top of Core Depth (m) : 955.00
Sect: 1 Top of Section Depth(m): 955.00
LITHOLOGY: GLOMEROPHYRIC BASALT;
Piece No. : PCE 1 (0-150);
Texture : GLOMEROPHYRIC, COARSE-GRAINED UNIFORM THROUGHOUT
CORE;
Structure : HIGHLY FRACTURED, FRACTURES GENERALLY WITHIN TWO
DEGREES OF HORIZONTAL WITH SOME HIGH ANGLE CROSS-
CUTTING MOSTLY SMEC FILLED AND RARELY WITH LATER
ANALCITE;
Comments : MEDIUM DARK GREY (N4);
Vesicles : Size(mm): Percent: 0
NO VESICLES;
Replacement: SMECTITE
ANALCITE
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 958.00
Core: 98 Top of Core Depth (m) : 955.00
Sect: 2 Top of Section Depth(m): 956.50
LITHOLOGY: GLOMEROPHYRIC BASALT;
SAME AS 98-1;
Piece No. : PCES 1 (0-40), 2 (43-56), 3 (60-71), 4 (74-86),
5 (89-117), 6 (119-129), 7 (132-150);
Texture : NO TEXTURAL VARIATION WHATSOEVER;
Structure : MANY FRACTURES, DOMINANTLY LESS THAN 20 DEGREES AND
CA 60 DEGREES BUT OTHER HIGHER ANGLES, SMEC FILLED
THROUGHOUT;
Replacement: SMECTITE
Leg : 81 Top/Bottom Interval(mm): 0/1450 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 959.45
Core: 98 Top of Core Depth (m) : 955.00
Sect: 3 Top of Section Depth(m): 958.00
LITHOLOGY: GLOMEROPHYRIC BASALT;
SAME AS 98-2;
Piece No. : PCES 1 (0-5), 2 (8-50), 3 (52-107), 4 (110-134),
5 (135-145);
Texture : NO CHANGE IN TEXTURE;
Structure : FRACTURING INTENSE, DOMINATED BY THE 20 DEGREE
DIRECTION WITH MANY HIGH ANGLE CROSS-CUTTING, ALL
SMEC FILLED;
Comments : NO CHANGE IN COLOR;
Replacement: SMECTITE
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 961.00
Core: 98 Top of Core Depth (m) : 955.00
Sect: 4 Top of Section Depth(m): 959.50
LITHOLOGY: GLOMEROPHYRIC BASALT;
SAME AS 98-3;
Piece No. : PCES 1 (0-25), 2 (26-37), 3 (39-54), 4 (56-75),
5 (76-84), 6 (85-91), 7 (94-105), 8 (106-119);
Texture : GLOMEROPHYRIC, COARSE-GRAINED, NO TEXTURAL VARIATION
OBSERVED EXCEPT COARSE PCE IN 8, ELONGATE ZONE
(RESORBED CLAST OF COARSE-GRAINED BASALT);
Structure : FRACTURES DOMINATED BY 60 DEGREE ORIENTATION WITH
<20 DEGREES COMMON ALSO;
Leg : 81 Top/Bottom Interval(mm): 0/1430 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 962.43
Core: 98 Top of Core Depth (m) : 955.00
Sect: 5 Top of Section Depth(m): 961.00
LITHOLOGY: GLOMEROPHYRIC BASALT;
SAME AS 98-4;
Piece No. : PCES 1 (0-25), 2 (28-36), 3 (39-70), 4 (72-91),
5 (92-123), 6 (124-143);
Texture : VERY UNIFORM GLOMEROPHYRIC;
Structure : INTENSE FRACTURING NEAR HORIZONTAL MOST COMMON WITH
HIGH ANGLE CROSS-CUTS FREQUENT;
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 964.00
Core: 98 Top of Core Depth (m) : 955.00
Sect: 6 Top of Section Depth(m): 962.50
LITHOLOGY: GLOMEROPHYRIC BASALT;
SAME AS 98-3;
Piece No. : PCES 1 (0-26), 2 (29-36), 3 (39-68), 4 (70-80),
5 (82-100), 6 (102-112), 7 (115-127), 8 (130-137),
9 (140-150);
Structure : FRACTURING LESS INTENSE AND DOMINATED BY HIGH ANGLE
FRACTURES AGAIN FILLED WITH SMECTITE;
Leg : 81 Top/Bottom Interval(mm): 0/ 350 Analyst: Morrison, M. Ann
Hole: 555 Sample Midpoint (m) : 964.35
Core: 98 Top of Core Depth (m) : 955.00
Sect: 7 Top of Section Depth(m): 964.00
LITHOLOGY: GLOMEROPHYRIC BASALT;
SAME AS 98-6;
Piece No. : PCES 1 (0-15), 2 (16-24), 3 (27-35);
Texture : COARSE-GRAINED, GLOMEROPHYRIC;
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