Leg : 65 Top/Bottom Interval(mm): 0/1170 Analyst: Morrison, M. Ann
Hole: 482F Sample Midpoint (m) : 136.67
Core: 4 Top of Core Depth (m) : 132.50
Sect: 3 Top of Section Depth(m): 135.50
LITHOLOGY: SEDIMENT;
Piece No. : PCE 1 (0-117);
Texture : SILTY CLAY;
Comments : GREY;
Leg : 65 Top/Bottom Interval(mm): 1170/1500 Analyst: Morrison, M. Ann
Hole: 482F Sample Midpoint (m) : 137.00
Core: 4 Top of Core Depth (m) : 132.50
Sect: 3 Top of Section Depth(m): 136.67
LITHOLOGY: PLAG-PYX, SPARSELY PHYRIC BASALT;
Piece No. : PCES 2 (117-123), 3 (124-126), 4 (127-140),
5 (140-143), 6 (144-146), 7A (146-147),
7B (147-150);
Texture : PHYRIC, PCES 2-3 HAVE ALTERED GLASSY RIND RICH IN
SULFIDES, CONTAINS 1% GLOMEROPHYRIC CLOTS OF PLAG
AND PYX-0.5-2MM, GRAIN SIZE INCREASES FROM PCES 2-7;
Structure : VEINS SCARCE, HAIRLINE FRACTURES LINED WITH SMECTITE
IN PCE 5 WHICH APPEARS SLIGHTLY ALTERED, SULFIDE AND
CALCITE VEINS IN PCE 2 AND ADJACENT TO ALTERED RIND
IN PCE 3;
Alteration : FRESH
PCES 2-3 ALTERED GLASS WHERE GROUNDMASS SULFIDES
OCCUR, ALTERATION LESS MARKED THAN IN HOLES B-D,
LITTLE SIGN OF ALTERATION HALOS AROUND VEINS;
Comments : PCES 2-3 TOP OF COOLING UNIT, GREY;
Vesicles : Size(mm): Percent: 0.5
Location: Filling: SMECTITE
VESICLES SCARCE 0.5MM ACROSS MAINLY IN PCE 4;
Phenocrysts: COMBINATION ( 1%)
Size(mm): 0.5-2
(S PLA%)
Size(mm): G AND CPX
Replacement: SULFIDES
OCCUR IN GROUNDMASS;
CALCITE
SMECTITE
Leg : 65 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann
Hole: 482F Sample Midpoint (m) : 143.50
Core: 5 Top of Core Depth (m) : 142.00
Sect: 1 Top of Section Depth(m): 142.00
LITHOLOGY: PLAG-CPX SPARSELY PHYRIC BASALT;
MASSIVE;
Piece No. : PCES 1 (0-18), 2 (20-28), 3 (30-37), 4 (40-51),
5 (54-60), 6 (62-70), 7 (72-78), 8 (81-87),
9 (88-97), 10 (100-112), 11 (115-120),
12 (121-130), 13 (132-144), 14 (145-150);
Texture : SPARSELY PHYRIC, CONTAINS LESS THAN 1% GLOMEROPHYRIC
CLOTS OF PLAG AND PYX;
Structure : VEINS OF SMECTITE AND SULFIDE OCCUR IN PCES (1,3-4,
OTHER) HAVE SMECTITE-SULFIDE COATED SURFACES,
MASSIVE;
Alteration : SLIGHTLY;
Comments : CONTINUATION OF COOLING UNIT IN CORE 4-3;
Vesicles : Size(mm): Percent: TO 1
Location: Filling: SMECTITE,CALCITE
NUMEROUS VESICLES, MOST SMALL LESS THAN 1MM,
LARGER ONES 1MM ACROSS IN PCES(3-7,13) HAVE CORES
OF CALCITE;
Phenocrysts: PLAGIOCLASE ( <1%)
Size(mm): 1-2
EUHEDRAL, FRESH, INTERGROWN WITH MINOR CPX;
Replacement: SULFIDES
SMECTITE
CALCITE
Leg : 65 Top/Bottom Interval(mm): 0/ 280 Analyst: Morrison, M. Ann
Hole: 482F Sample Midpoint (m) : 143.78
Core: 5 Top of Core Depth (m) : 142.00
Sect: 2 Top of Section Depth(m): 143.50
LITHOLOGY: PLAG-CPX SPARSELY PHYRIC BASALT;
MASSIVE;
Piece No. : PCES 1 (0-6), 2 (7-19), 3 (21-28);
Texture : SPARSELY PHYRIC, PLAG-CPX GLOMEROPHYRIC CLOTS;
Structure : MASSIVE, SMECTITE VEINS LINED WITH SULFIDES IN PCES
2-3;
Vesicles : Size(mm): Percent: <1
Location: Filling: SMECTITE
SMEC-CALCITE LINED, RARELY VESICLES CLOSE TO VEINS
CONTAIN SULIDE IN CENTRES;
Alteration : SLIGHT
PCE 3 HAS ALTERATION HALO 2-4MM WIDE, SOME
GROUNDMASS SULFIDE OCCURS IN HALO AROUND VEIN IN
PCE 3, ALTERATION SLIGHT-RELATED TO VEINS AND
VESICLES;
Phenocrysts: PLAGIOCLASE
PLAG-CPX GLOMEROPHYRIC CLOTS;
CLINOPYROXENE
Replacement: SMECTITE
CALCITE
SULFIDE
IN VEINS AND VESICLES AND IN ALTERATION HALOS;
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