Leg : 54 Top/Bottom Interval(mm): 0/ 650 Analyst: Dmitriev, Y.
Hole: 424C Sample Midpoint (m) : 28.15
Core: 2 Top of Core Depth (m) : 27.50
Sect: 1 Top of Section Depth(m): 27.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (0-5), 2 (7-9), 3 (16-24), 4 (26-33),
5 (37-44), 6 (46-53), 7 (55-63);
Texture : APHYRIC,VERY FINE-GRAINED & MICROPORPHYRIC IN PCES
2-4,GLASS PERIPHERY FRINGE 1-2MM IN PCES 2+6;
Alteration : FRESH
BLUE CLAY.MIN COATS SURFACES OF PCES 1-2;
Comments : RENMANTS OF A LIGHTER PERIPHERY ZONE ARE VISIBLE IN
PCES 2+4-5+7,BASALT IS SOMETIMES BANDED WITH LIGHTER
& DARKER MINERALS,PCE 2 & OTHERS HAVE A TRANSITION
FROM LIGHTER TO DARKER GRAY PCE 6,TWO COOLING UNITS
ARE PRESENT FROM PCES 1-5 & PCES 6-7;
Vesicles :
Location: Filling:
Shape : PINPOINT
EMPTY VESICLES IN PCES 2-3 & PINPOINT VESICLES IN
PCE 6;
Size(mm): TO 1 Percent: 1-2
PCE 7;
VUGS OFTEN GROUPED WITH VESICLES IN PCE 3,VUGS
3-5% UP TO 2MM IN PCE 4 ALSO PRESENT IN PCE 5 BUT
SMALLER & LESS ABUNDANT;
Phenocrysts: PLAGIOCLASE ( RARE%)
RARE MICROPHENOS IN PCES 2-4;
Replacement: CLAY MINERALS
BLUE CLAY.MIN COATING WEATHERED SURFACES IN PCES
1-2;
Leg : 54 Top/Bottom Interval(mm): 0/ 690 Analyst: Dmitriev, Y.
Hole: 424C Sample Midpoint (m) : 32.19
Core: 3 Top of Core Depth (m) : 31.50
Sect: 1 Top of Section Depth(m): 31.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1A (0-6), 1B (6-13), 2 (16-30), 3 (34-42),
4 (44-57), 5 (59-68);
Texture : APHYRIC,VERY FINE-GRAINED,BLACK GLASSY FRINGE ON PCE
1 ABOUT 1CM;
Structure : MICROFISSURES IN PCE 4;
Alteration : FRESH
Comments : BANDED GRAY & DARK GRAY GOING TO DARK GRAY WITH THE
LOWER TWO-THIRDS HAVING A 0.6CM LIGHTER ZONE AROUND
A DARKER CORE PCE 1,LIGHTER ZONES AROUND
MICROFISSURE GRADING TO DARKER GRAY BASALT WITH
PATCHES 1-2MM OF LIGHTER & DARKER GRAY WIDTH OF ZONE
5CM IN PCE 4,TWO COOLING UNITS PRESENT FROM PCES 1-3
& PCES 4-5;
Vesicles : VUGS PRESENT IN PCES 2+3;
Size(mm): 0.5 Percent: 2-3
Location: Filling: UNIDENT.MINS
PCE 1 WITH ABUNDANCE DECREASING IN LOWER PART OF
PCE 1 & VESICLES IN THIS REGION ARE FILLED WITH
RUSTY & GREENISH UNIDENT.MINS PCE 1B;
Size(mm): Percent: <1
Location: Filling: UNIDENT.MINS
FILLED WITH RUSTY-GREEN UNIDENT.MINS IN PCE 4;
Location: Filling:
Shape : PINPOINT
SOME PINPOINT VESICLES IN PCES 4-5;
Phenocrysts: PLAGIOCLASE ( RARE%)
RARE PLAG MICROPHENOS IN PCES 2-3;
Replacement: UNIDENTIFIED
RUSTY & GREEN UNIDENT.MINS IN VUGS;
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