Leg : 54 Top/Bottom Interval(mm): 0/ 80 Analyst: Humphris, S.
Hole: 423 Sample Midpoint (m) : 38.28
Core: 5 Top of Core Depth (m) : 32.50
Sect: CC Top of Section Depth(m): 38.30
LITHOLOGY: SEDIMENT;
Leg : 54 Top/Bottom Interval(mm): 80/ 240 Analyst: Humphris, S.
Hole: 423 Sample Midpoint (m) : 38.44
Core: 5 Top of Core Depth (m) : 32.50
Sect: CC Top of Section Depth(m): 38.28
LITHOLOGY: PLAG SPARSELY PHYRIC BASALT;
Piece No. : PCES 1 (10-16), 2 (18-23);
Texture : PLAG SPARSELY PHYRIC,FINE-GRAINED,GLASSY RIM ALONG
ONE EDGE OF PCE 2,GLASSY PCE 2 WITH EXTERIOR SURFACE
NON-GLASSY;
Structure : FRACTURES IN BOTH PCES INCIPIENT WEATHERING IN PCE
1;
Alteration : FRESH
PCE 2;
MOD
PCE 1,WEATHERING RIM ON PCE 1 & IS 1CM WIDE;
Comments : JOINT EXTERIOR SURFACES COATED WITH GREEN CLAY.MINS
PCE 1,IRREGULARLY COATED SURFACE OF PCE 2 WITH PALE
GREEN CLAY.MIN,POSSIBLE FLOW BOUNDARY;
Vesicles : Size(mm): Percent: RARE
Location: Filling: FE.OXIDE
Shape : PINHOLE
SEVEN ALIGNED VESICLES IN PCE 2 & RARE PINHOLE
VESICLES IN BOTH PCES & VESICLES ARE EMPTY IN
PCE 2;
Phenocrysts: PLAGIOCLASE
Replacement: FERROUS OXIDE
IN VESICLES;
CLAY MINERALS
GREEN CLAY.MINS ON EXTERIOR SURFACES;
Leg : 54 Top/Bottom Interval(mm): 240/ 450 Analyst: Humphris, S.
Hole: 423 Sample Midpoint (m) : 38.65
Core: 5 Top of Core Depth (m) : 32.50
Sect: CC Top of Section Depth(m): 38.44
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 3 (26-30), 4 (32-43);
Texture : APHYRIC,FINE-GRAINED,GLASSY SEGREGATION NEAR EDGE,
COARSER-GRAINED PCE 4;
Structure : FRACTURING OCCURS NEAR ONE VESICULAR MARGIN IN PCE
4 WITH INFILLING XTLS,SPHERUL BETWEEN 40-42CM;
Alteration : FRESH
PCE 3;
MOD
PCE 4,WEATHERING RIM ABOUT 1CM;
Comments : OXIDE COATING ON EXTERIOR SURFACE;
Vesicles :
Location: Filling:
Shape : ROUNDED,TUBE
ROUNDED & TUBULAR EMPTY VESICLES;
Phenocrysts: PLAGIOCLASE
CLINOPYROXENE
A FEW PERCENT PLAG & CPX MICROLITES IN SPHERUL
GNDMASS BETWEEN 40-42CM;
Replacement: FERROUS OXIDE
COATING XTLS OF MICROLITES IN PCE 4 & ALSO ON
EXTERIOR OF PCE 3;
Leg : 54 Top/Bottom Interval(mm): 0/ 350 Analyst: Humphris, S.
Hole: 423 Sample Midpoint (m) : 42.35
Core: 6 Top of Core Depth (m) : 42.00
Sect: 1 Top of Section Depth(m): 42.00
LITHOLOGY: PLAG SPARSELY PHYRIC BASALT;
Piece No. : PCES 1 (2-9), 2 (11-14), 3 (16-19), 4 (21-25),
5 (27-34);
Texture : SPARSELY PHYRIC,FINE-GRAINED GLASSY TO SPHERUL,SMALL
AMOUNT OF GLASSY MARGIN ON PCES 2-5;
Alteration : FRESH
PCES 2-3;
MOD
PCES 1+4-5,WEATHERING RIM 1CM WIDE ON PCES 1+4;
Comments : BLUE-GREEN CLAY.MINS & FE.OXIDES ON EXTERIOR SURFACE
OF PCE 1,FLOW BANDING SHOWS IN PCE 5 AS ALTERNATE
LAYERS OF APHYRIC BASALT & PLAG SPARSELY PHYRIC;
Vesicles :
Location: Filling: CLAY,UNIDENT
OCCASIONAL VESICLES MOST EMPTY BUT SOME LINED WITH
GREEN CLAY.MINS(PCE 3) OR FILLED WITH A WHITE XTLN
MINERAL;
Phenocrysts: OLIVINE
ONE OL PHENO FOUND IN PCE 5;
PLAGIOCLASE
PHENOS ARE PARTICULARLY CONCENTRATED IN A HIGHLY
VESICULAR ZONE IN PCE 1,PHENOS BECOMING MORE RARE
IN PCE 4 & PCE 5 IS ACTUALLY LAYERED BASALT OF
APHYRIC TO PLAG SPARSELY PHYRIC;
Replacement: FERROUS OXIDE
ON EXTERIOR SURFACE OF PCE 1;
CLAY MINERALS
GREEN CLAY.MINS IN VESICLES & ON EXTERIOR OF PCE
1;
UNIDENTIFIED
WHITE XTLN UNIDENT.MINS FOUND IN SOME VESICLES;
Leg : 54 Top/Bottom Interval(mm): 0/ 500 Analyst: Fodor, R.
Hole: 423 Sample Midpoint (m) : 47.00
Core: 7 Top of Core Depth (m) : 46.50
Sect: 1 Top of Section Depth(m): 46.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (2-9), 2 (11-18), 3 (21-25), 4 (27-33),
5 (33-37), 6 (38-45), 7 (45-50);
Texture : APHYRIC,GLASSY TO SPHERUL,GLASSY SELVAGES IN PCES
2-5+7;
Structure : FRACTURE SURFACE WITH FE.OXIDE COLORATION ON PCE 6;
Alteration : FRESH
PCES 3+5;
MOD
PCES 1-2+4+6-7,WEATHERING RIND 1CM THICK ON PCES
1-2+4-5+7;
Comments : FE.OXIDE ON OUTER SURFACE OF PCE 6;
Vesicles : Size(mm): Percent: RARE
Location: Filling: CLAY.MIN,FE.OXIDE
Shape : PINHOLE
RARE PINHOLE VESICLES WITH CLAY.MINS & FE.OXIDES
FILLING THOSE THAT ARE LOCATED IN THE ALTERATION
RINDS;
Phenocrysts: PLAGIOCLASE ( RARE%)
RARE PLAG PHENO IN PCE 1;
Replacement: FERROUS OXIDE
ON EXTERIOR OF PCE 6 & IN VESICLES;
CLAY MINERALS
IN VESICLES;
Leg : 54 Top/Bottom Interval(mm): 0/ 570 Analyst: Fodor, R.
Hole: 423 Sample Midpoint (m) : 52.07
Core: 8 Top of Core Depth (m) : 51.50
Sect: 1 Top of Section Depth(m): 51.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (3-9), 2 (12-18), 3 (20-24), 4 (23-30),
5 (34-37), 6 (41-48), 7 (52-56);
Texture : APHYRIC,FINE-GRAINED TO GLASSY,GLASS RIND ON PCES
1+2;
Alteration : FRESH
PCES 2-5;
MOD
PCES 1+6-7,WEATHERING RINDS 1CM THICK STAINED WITH
FE.OXIDE ON PCES 1+6-7;
Comments : UNCUT TINY PEBBLES PCES 3-5;
Vesicles :
Location: Filling:
Shape : PINHOLE
PINHOLE VESICLES IN MOST PCES;
Replacement: FERROUS OXIDE
STAINING IN RINDS;
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