Leg : 70 Top/Bottom Interval(mm): 0/ 260 Analyst: Laverne, C.
Hole: 508B Sample Midpoint (m) : 51.76
Core: 3 Top of Core Depth (m) : 51.50
Sect: 1 Top of Section Depth(m): 51.50
LITHOLOGY: PLAG MOD PHYRIC BASALT;
Piece No. : PCE 38 (2-9), 39 (11-17), 40 (19-26);
Texture : MOD PHYRIC, IN PCE 38 GLASSY RIM ON ONE SIDE OF
THE FRAGMENT, PCE 40 IS FINE-GRAINED;
Structure : IN PCE 40 TWO SMALL FRACTURES FILLED WITH BROWN AND
BLUE MATERIAL;
Alteration : IN PCE 38 THICK ALTERED RIM (1CM THICKNESS) ON 3
SIDES OF THE FRAGMENT, IN PCE 39 ALTERED RIM
(7MM THICKNESS) ON ONE SIDE OF THE FRAGMENT, IN
PCE 40 GRAY AND GREEN AND BLUE COATING (MAY BE 1
OR 2MM OF MAXIMUM THICKNESS) ON ALL THE UNCUT
SURFACES, SOME BROWN MATERIAL ALTERED RIM (5-10MM
THICKNESS) ALL AROUND THE SAMPLE;
FRESH
INTERIOR OF PCE 38;
Vesicles : Size(mm): TO 1 Percent:
Location: Filling: CLAY
IN PCE 39 VESICLES ARE EMPTY IN THE FRESH
INTERIOR AREA AND COATED WITH BLUE CLAY IN THE
ALTERED RIM, IN PCE 39 VESICLES ARE RARE IN THE
ALTERED AREA AND MOST ARE EMPTY, IN PCE 40 ALL
VESICLES IN THE ALTERED RIM ARE COATED BY BLUE+
BLUISH WHITE+YELLOW+BROWN+GREEN MATERIAL, VESICLES
IN THE INTERIOR OF PCE 40 ARE EMPTY;
Phenocrysts: PLAGIOCLASE
Replacement: CLAY MINERALS
Leg : 70 Top/Bottom Interval(mm): 280/ 460 Analyst: Laverne, C.
Hole: 508B Sample Midpoint (m) : 51.96
Core: 3 Top of Core Depth (m) : 51.50
Sect: 1 Top of Section Depth(m): 51.78
LITHOLOGY: PLAG SPARSELY PHYRIC BASALT;
Piece No. : PCE 41 (28-30), 43 (36-46);
Texture : SPARSELY PHYRIC, PCE 41 IS FINE-GRAINED, PCE 43
IS MEDIUM-GRAINED;
Alteration : PCE 41 HAS GRAY AND BROWN COATING ON THE UNCUT
SURFACES, PCE 43 HAS AN ALTERATION RIM ON THREE
SIDES AND GRAY+YELLOW+GREEN+BROWN COATING ON
ALMOST THE WHOLE SURFACE;
Vesicles : IN PCE 41 PINPOINT BLUE COATED VESICLES ARE
PRESENT;
Location: Filling: ZEOLITES
IN THE FRESH PART OF PCE 43 VESICLES ARE
PARTIALLY FILLED WITH ZEOLITES;
IN THE ALTERED PARTS OF PCE 43 VESICLES ARE
COATED WITH BLUE AND BROWN MATERIAL-ABOVE
ZEOLITES(?);
Phenocrysts: PLAGIOCLASE
ZEOLITE
Leg : 70 Top/Bottom Interval(mm): 310/ 350 Analyst: Laverne, C.
Hole: 508B Sample Midpoint (m) : 51.85
Core: 3 Top of Core Depth (m) : 51.50
Sect: 1 Top of Section Depth(m): 51.81
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 42 (31-35);
Texture : APHYRIC, MEDIUM-GRAINED;
Alteration : FRESHER INTERIOR, THE ALTERED AREA IS
DISTINGUISHED FROM THE FRESHER INTERIOR BY ITS
DARKER COLOR;
Vesicles : Size(mm): TO 1 Percent:
PINPOINT TO 1MM IN DIAMETER, VESICLES ARE FILLED
BY BROWN AND GREEN MATERIAL IN THE ALTERED AREA;
Leg : 70 Top/Bottom Interval(mm): 0/ 190 Analyst: Hubberten, H.-W.
Hole: 508B Sample Midpoint (m) : 57.69
Core: 4 Top of Core Depth (m) : 57.50
Sect: 1 Top of Section Depth(m): 57.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 44 (1-8), 45 (10-17);
Texture : APHYRIC, FINE-GRAINED, GLASSY RIMS AT TWO EDGES OF
PCE 45;
Alteration : FRESH
PCE 44;
Structure : SMALL FRACTURE THROUGH PCE 45;
Vesicles : Size(mm): 6 Percent:
Location: Filling: PYRITE
IN PCE 44 VESICLES ARE COATED WITH PYRITE PATCHES
IN THE WORKING HALF;
Size(mm): 0.1 Percent:
Location: Filling: CLAY
IN PCE 45 VESICLES COATED WITH BLUE CLAY;
Replacement: PYRITE
CLAY MINERALS
BLUE CLAY;
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