Leg : 54 Top/Bottom Interval(mm): 0/1500 Analyst: Dmitriev, Y.
Hole: 422 Sample Midpoint (m) : 47.50
Core: 7 Top of Core Depth (m) : 46.00
Sect: 1 Top of Section Depth(m): 46.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (2-4), 2 (6-10), 3 (11-17), 4 (20-25),
5 (27-33), 6A (35-41), 6B (42-49), 6C (49-54),
7A (56-61), 7B (62-72), 7C (71-82), 7D (82-89),
7E (89-94), 8 (96-101), 9 (102-111), 10 (114-121),
11 (122-131), 12 (131-138), 13 (140-149);
Texture : APHYRIC,FINE-TO-MEDIUM-GRAINED,COARSENS DOWN THROUGH
PCE 9 & THEN BECOMES FINER;
Structure : SPARSE FISSURES HAVING ENCRUSTATION OF HYDROTHERMAL
MINERALS ON WALLS,SOME PCES HAVE GLASSY BL0BS;
Alteration : FRESH
Comments : MEDIUM GRAY COLOR;
Vesicles : Size(mm): <1 Percent: 5
Location: Filling: CLAY.MIN
Shape : TUBE
RARE VESICLES INFILLED WITH BLUE CLAY.MIN,SOME ARE
TUBE VESICLES,PCE 9 HAS NO VESICLES;
Phenocrysts: CLINOPYROXENE
RARE IN PCE 4;
PLAGIOCLASE
SPARSE IN PCES 7A-7E;
Replacement:
INCLUSIONS;
FERROUS OXIDE
ZEOLITE
IN VUGS IN PCE 10 & PCE 6B(ID UNCERTAIN FOR ZEOL
IN PCE 6B);
Leg : 54 Top/Bottom Interval(mm): 0/ 330 Analyst: Humphris, S.
Hole: 422 Sample Midpoint (m) : 47.83
Core: 7 Top of Core Depth (m) : 46.00
Sect: 2 Top of Section Depth(m): 47.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (2-10), 2 (12-17), 3 (20-33);
Texture : APHYRIC,FINE-GRAINED;
Alteration : FRESH
Vesicles :
Location: Filling: CLAY.MIN,ZEOL
SOME VESICLES IN PCE 1 LINED WITH WHITE & BLUE
CLAY.MINS & POSSIBLE ZEOL;
Replacement: CLAY MINERALS
BLUE & WHITE POSSIBLY LINES VESICLES IN PCE 1;
ZEOLITE
POSSIBLY LINES VESICLES IN PCE 1;
Leg : 54 Top/Bottom Interval(mm): 0/1360 Analyst: Schrader, E.L.
Hole: 422 Sample Midpoint (m) : 56.36
Core: 8 Top of Core Depth (m) : 49.00
Sect: 5 Top of Section Depth(m): 55.00
LITHOLOGY: APHYRIC TO PLAG SPARSELY PHYRIC BASALT;
Piece No. : PCES 1 (0-4), 2 (6-10), 3 (14-21), 4 (26-35),
5 (38-45), 6 (47-52), 7 (56-60), 8 (62-70),
9 (73-78), 10 (81-85), 11 (88-96), 12 (99-106),
13 (109-114), 14 (116-136);
Texture : APHYRIC TO SPARSELY PHYRIC,FINE-GRAINED WITH PCES
7-11 BEING SLIGHTLY COARSER-GRAINED;
Structure : SOME FRACTURE SURFACES;
Alteration : FRESH
A FEW WEATHERING CRUSTS ON FRACTURE SURFACES;
Vesicles : Size(mm): Percent: 0-2
Location: Filling: UNIDENT.MINS
Shape : PINHOLE
PINHOLE VESICLES(SOME COATED WITH BLUE CRUSTS OF
UNIDENT.MINS);
Replacement: UNIDENTIFIED
UNIDENT.MINS CRUSTS COAT SOME VESICLES;
Phenocrysts: PLAGIOCLASE
SPARSE PHENOS IN PCES 2+3;
Leg : 54 Top/Bottom Interval(mm): 0/1410 Analyst: Schrader, E.L.
Hole: 422 Sample Midpoint (m) : 55.41
Core: 9 Top of Core Depth (m) : 54.00
Sect: 1 Top of Section Depth(m): 54.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (0-7), 2 (11-16), 3 (19-31), 4A (33-55),
4B (54-69), 4C (69-81), 4D (80-88), 5 (90-103),
6 (105-107), 7A (109-118), 7B (118-141);
Texture : APHYRIC,FINE-GRAINED & COARSER-GRAINED DOWNWARD TO
THE TOP TWO-THIRDS OF PCE 7B,BOTTOM ONE-THIRD OF PCE
7B BECOMES FINER-GRAINED;
Alteration : FRESH
Comments : CENTER IS COARSER-GRAINED & MAY REPRESENT CENTER OF
COOLING UNIT;
Vesicles :
Location: Filling: CLAY.MIN
VESICULAR,MORE IN PCES 2+5 THAN OTHERS,BLUE-GRAY
CLAY.MINS IN VESICLES OF PCES 2+5;
Replacement: CLAY MINERALS
BLUE-GRAY IN VESICLES OF PCES 2+5;
Leg : 54 Top/Bottom Interval(mm): 0/1400 Analyst: Schrader, E.L.
Hole: 422 Sample Midpoint (m) : 56.90
Core: 9 Top of Core Depth (m) : 54.00
Sect: 2 Top of Section Depth(m): 55.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (2-5), 2 (7-10), 3 (13-26), 4A (28-44),
4B (45-55), 4C (55-63), 4D (63-70), 4E (71-78),
4F (78-86), 5A (88-99), 5B (100-106), 5C (105-115),
6 (119-140);
Texture : APHYRIC,FINE-GRAINED,APHANITIC TO MICROLITIC;
Structure : MINOR VEINS & ALTERATION CRUSTS;
Alteration : FRESH
SOME 1-2MM BLUE WEATHERING CRUSTS ON SURFACE;
Vesicles :
Location: Filling: CLAY.MINS
MINOR SMALL VESICLES MORE ABUNDANT FROM PCE 4C
DOWNWARD SOME CONTAIN BLUE CLAY.MINS;
Phenocrysts: PLAGIOCLASE
MICROLITES;
Replacement: CLAY MINERALS
BLUE CLAY.MINS FILLS SOME VESICLES & VEINS;
Leg : 54 Top/Bottom Interval(mm): 0/1350 Analyst: Mattey, D.
Hole: 422 Sample Midpoint (m) : 58.35
Core: 9 Top of Core Depth (m) : 54.00
Sect: 3 Top of Section Depth(m): 57.00
LITHOLOGY: APHYRIC TO PLAG SPARSELY PHYRIC BASALT;
Piece No. : PCES 1 (0-5), 2 (8-10), 3 (13-17), 4A (21-33),
4B (32-41), 4C (40-53), 5 (55-57), 6A (59-72),
6B (72-78), 6C (78-95), 6D (95-98), 7 (101-104),
8A (106-129), 8B (129-135);
Texture : GLASSY SEGREGATIONS IN PCES 6A+6D,MICROLITIC;
Structure : VEINS FILLED WITH WHITE XTLLN MATERIAL,CRACKS;
Alteration : FRESH
Vesicles :
Location: Filling: CLAY.MINS
Shape : PINHOLE,TUBE
PINHOLE VESICLES FILLED WITH BLUE CLAY.MINS,DEEP
TUBE VESICLES IN PCE 8B;
Phenocrysts: PLAGIOCLASE ( RARE%)
RARE PHENOS IN PCES 1+3+4A-4C;
Replacement: CLAY MINERALS
BLUE CLAY.MINS INFILLS SOME VESICLES & CRACKS;
Leg : 54 Top/Bottom Interval(mm): 0/1500 Analyst: Mattey, D.
Hole: 422 Sample Midpoint (m) : 60.00
Core: 9 Top of Core Depth (m) : 54.00
Sect: 4 Top of Section Depth(m): 58.50
LITHOLOGY: APHYRIC TO PLAG SPARSELY PHYRIC BASALT;
Piece No. : PCES 1 (1-13), 2 (15-19), 3A (21-41), 3B (41-50),
4 (52-56), 5 (57-67), 6 (70-72), 7 (74-77),
8 (80-85), 9 (88-90), 10 (92-99), 11 (101-105),
12 (107-113), 13A (116-140), 13B (140-148);
Texture : APHYRIC TO SPARSELY PHYRIC,FINE-GRAINED,GLASSY
SEGREGATIONS IN PCES 4+13B,MICROLITIC;
Structure : TRACES OF FLOW BANDING PERPENDICULAR TO CORE IN PCE
5,SMALL ALTERATION VEINLETS;
Alteration : FRESH
Vesicles : Size(mm): <2 Percent:
Location: Filling:
Shape : TUBULAR
PCES 1+3A,SMALLER IN PCES 8+10,LINED WITH BLUE
CLAY.MINS,PCES 4+10+13B CONTAIN VUGS,NO VESICLES
IN PCE 6;
Phenocrysts: PLAGIOCLASE ( RARE%)
RARE PHENOS IN PCE 3A;
Replacement: CLAY MINERALS
BLUE,FILLS SOME VESICLES;
Leg : 54 Top/Bottom Interval(mm): 0/ 750 Analyst: Humphris, S.
Hole: 422 Sample Midpoint (m) : 60.75
Core: 9 Top of Core Depth (m) : 54.00
Sect: 5 Top of Section Depth(m): 60.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (0-5), 2 (6-19), 3A (21-31), 3B (31-37),
4 (40-45), 5 (47-54), 6 (56-75);
Texture : APHYRIC,FINE-GRAINED,MICROLITIC;
Alteration : FRESH
Vesicles :
Location: Filling: CLAY.MINS
Shape : TUBULAR
PCES 1-2+5,LINED WITH BLUE CLAY,ELSEWHERE VESICLES
MORE RARE & SMALLER;
Replacement: CLAY MINERALS
BLUE-GREEN LINES VESICLES,BLUE-GRAY LINES TUBULAR
VESICLES;
UNIDENTIFIED
GREEN UNIDENT.MINS ON TOP OUTER SURFACE OF PCE 6;
Leg : 54 Top/Bottom Interval(mm): 0/ 260 Analyst: Humphris, S.
Hole: 422 Sample Midpoint (m) : 63.76
Core: 10 Top of Core Depth (m) : 63.50
Sect: 1 Top of Section Depth(m): 63.50
LITHOLOGY: APHYRIC TO PLAG SPARSELY PHYRIC BASALT;
Piece No. : PCES 1 (1-9), 2 (11-18), 3 (20-26);
Texture : APHYRIC TO SPARSELY PHYRIC,FINE-GRAINED,SPHERUL
GLASSY MARGIN ON TOP EDGE OF PCE 3;
Alteration : FRESH
Vesicles :
Location: Filling: CLAY.MINS
A FEW VESICLES IN PCES 1-2 LINED WITH BLUE
CLAY.MINS,MORE IN PCE 3 ARE HOLLOW;
Phenocrysts: PLAGIOCLASE
OCCASIONAL PHENOS IN PCE 3;
Replacement: CLAY MINERALS
BLUE,LINES VESICLES IN PCES 1-2;
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