Leg : 60 Top/Bottom Interval(mm): 0/1160 Analyst: Fryer, P.
Hole: 456A Sample Midpoint (m) : 115.66
Core: 11 Top of Core Depth (m) : 114.50
Sect: 1 Top of Section Depth(m): 114.50
LITHOLOGY: MUDSTONE;
PEBBLES OF BASALT INCLUDED;
Piece No. : PCE 1 (2-4), 2 (7-10), 3 (11-13), 4 (17-27),
5 (29-32), 6 (35-37), 7 (42-44), 8 (47-50),
9 (54-62), 10 (64-74), 11 (76-80), 12 (81-86),
13 (88-95), 14 (98-100), 15 (102-106);
Texture : PEBBLES OF BASALT IN PCES 4+6, PCES 10-13+15
CONSISTS OF HIGHLY ALTERED PILLOW BASALT FRAGMENTS
LITHOLOGICALLY IDENTICAL TO THOSE DESCRIBED FOR
HOLE 456-CORE 16;
Alteration : EXT;
Comments : PCES 1-9+14 ARE MUDSTONES AND SANDSTONES, BASALT
LIGHT GREY TO LIGHT GREENISH GREY (N6 TO 5G8/1);
Leg : 60 Top/Bottom Interval(mm): 0/ 970 Analyst: Fryer, P.
Hole: 456A Sample Midpoint (m) : 124.47
Core: 12 Top of Core Depth (m) : 123.50
Sect: 1 Top of Section Depth(m): 123.50
LITHOLOGY: PLAG PHYRIC AND APHYRIC BASALT;
Piece No. : PCE 1 (3-9), 2 (10-18), 3 (19-26), 4 (28-32),
5 (34-35), 6 (40-43), 7 (47-52), 8 (56-58),
9 (62-65), 10 (68-74), 11 (76-83), 12 (86-89),
13 (92-97);
Texture : PCES 1-3 ARE HIGHLY PLAG PHYRIC BASALT, REST OF THE
CORE CONSISTS OF APHYRIC BASALT;
Alteration : SLIGHTLY TO MODERATELY;
Comments : PCE 4 IS DARK YELLOWISH BROWN, PCE 5 IS TWO SMALL
PCES WITH ONE GREYISH BROWN (5YR3/2) AND THE OTHER
MEDIUM DARK GREY (N4), PCES 7-10 ARE MEDIUM DARK
GREY (N4), ALTERATION INCLUDES 2-4CM WIDE REDDISH
OXIDIZED ZONES ON THE SIDES OF THE PCES;
Vesicles : Size(mm): 1-2 Percent: 20
PCE 6 HAS MINUTE SPHERICAL VESICLES, PCES 7-10
HAVE NUMEROUS LARGE VESICLES OF SPHERICAL TO
IRREGULAR SHAPE, PCES 11-13 HAVE NUMEROUS MINUTE
AND OCCASIONAL LARGE VESICLES (2-3MM);
Phenocrysts: NO PHENOCRYSTS IN HAND SAMPLE OF PCE 4;
Leg : 60 Top/Bottom Interval(mm): 0/ 360 Analyst: Fryer, P.
Hole: 456A Sample Midpoint (m) : 133.36
Core: 13 Top of Core Depth (m) : 133.00
Sect: 1 Top of Section Depth(m): 133.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 1 (3-7), 2 (9-11), 3 (15-19), 4 (22-26),
5 (28-31), 6 (34-36);
Texture : APHYRIC, PCE 6 IS A SMALL FRAGMENT OF A FRESH BASALT
PILLOW WITH A GLASSY RIND, PCE 2 IS A HIGHLY ALTERED
PLAG PHYRIC BASALT SIMILAR TO PCES 1-3 OF CORE 12;
Alteration : EXT
PCES 1-3;
MOD
4-6;
Comments : PCE 1 IS DARK YELLOWISH BROWN (10YR4/2), PCE 3 IS
MEDIUM BLUISH GREY (5B5/1), PCE 2 PROBABLY FELL DOWN
THE HOLE;
Vesicles : Size(mm): 1 Percent: 10
PCES 4-5;
Phenocrysts: NO PHENOCRYSTS IN HAND SAMPLE OF PCE 4;
Leg : 60 Top/Bottom Interval(mm): 0/ 420 Analyst: Fryer, P.
Hole: 456A Sample Midpoint (m) : 142.92
Core: 14 Top of Core Depth (m) : 142.50
Sect: 1 Top of Section Depth(m): 142.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 1 (3-7), 2 (12-16), 3 (18-21), 4 (24-27),
5 (30-34), 6 (37-42);
Texture : APHYRIC;
Alteration : MOD
PCE 6 HAS AN ALTERATION RIND;
FRESH;
REST OF SECTION;
Comments : PCES 1-2 ARE BROWNISH BLACK (5YR2/1);
Vesicles : Size(mm): 0.5-1 Percent: 30
Location: Filling:
Shape : SPHERICAL
PCES 1-2, SOME IRREGULAR SHAPES;
Size(mm): 0.5 Percent:
Location: Filling:
Shape : SPHERICAL
NUMEROUS MINUTE VESICLES;
Leg : 60 Top/Bottom Interval(mm): 0/ 240 Analyst: Fryer, P.
Hole: 456A Sample Midpoint (m) : 152.24
Core: 15 Top of Core Depth (m) : 152.00
Sect: 1 Top of Section Depth(m): 152.00
LITHOLOGY: PLAG PHYRIC AND APHYRIC BASALT;
Piece No. : PCE 1 (4-6), 2 (8-11), 3 (14-17), 4 (19-24);
Texture : PCE 1 IS PLAG PHYRIC BASALT SIMILAR TO CORE 12-PCES
1-3, PCES 2-4 ARE APHYRIC;
Alteration : MOD
PCE 1;
FRESH
REST OF SECTION;
Comments : PCE 1 MAY HAVE FALLEN DOWN THE HOLE;
Vesicles : PCES 2-3 HAVE TINY SPHERICAL VESICLES WHEREAS
PCE 4 HAS ELONGATE VESICLE TRAINS;
|
