Leg : 54 Top/Bottom Interval(mm): 0/ 100 Analyst: Humphris, S.
Hole: 421 Sample Midpoint (m) : 85.60
Core: 2 Top of Core Depth (m) : 85.50
Sect: 1 Top of Section Depth(m): 85.50
LITHOLOGY: SEDIMENT;
Leg : 54 Top/Bottom Interval(mm): 100/ 240 Analyst: Humphris, S.
Hole: 421 Sample Midpoint (m) : 85.74
Core: 2 Top of Core Depth (m) : 85.50
Sect: 1 Top of Section Depth(m): 85.60
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (12-17), 2 (20-23);
Texture : PCE 1 PHYRIC,FINE-GRAINED,SMALL AMOUNT OF GLASS ON
UPPER MARGIN OF PCE 1,PCE 2 IS APHYRIC;
Alteration : MOD
WEATHERING RIM ABOUT 1CM THICK;
Vesicles :
Location: Filling: CLAY.MIN
SOME VESICLES FILLED WITH WHITE OR BLUE-GREEN
MATERIAL(POSSIBLY CLAY.MINS);
Phenocrysts: PLAGIOCLASE
OCCASIONAL,ESPECIALLY NEAR MARGINS OF PCE 1;
Leg : 54 Top/Bottom Interval(mm): 0/1500 Analyst: Humphris, S.
Hole: 421 Sample Midpoint (m) : 96.50
Core: 3 Top of Core Depth (m) : 95.00
Sect: 1 Top of Section Depth(m): 95.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (0-7), 2 (9-15), 3 (17-20), 4 (21-25),
5 (27-34), 6 (36-41), 7 (43-48), 8 (50-54),
9 (56-61), 10 (62-68), 11 (71-77), 12 (79-84),
13 (86-91), 14 (94-99), 15 (101-105), 16 (106-111),
17 (114-122), 18 (124-129), 19 (130-134),
20 (136-142), 21 (143-149);
Texture : APHYRIC,FINE-GRAINED,GLASSY MARGINS ON PCES 6+8+
15+16,PCE 5 SLIGHTLY COARSER-GRAINED;
Structure : CRACKS FILLED BY FE.OXIDE & POSSIBLE CHLOR IN PCES
1+16,PCE 1 HAS VEIN FILLED WITH CHLOR;
Alteration : MOD
PCE 3 SHOWS SIGNS OF WEATHERING WITHIN GNDMASS,
PCE 8 HAS SLIGHT ALTERATION,BROWN OXIDE RUST
PATCHES ON PCES 7-8;
Vesicles :
Location: Filling: CLAY.MIN
PCE 3;
Location: Filling: UNIDENT.MINS
PCE 7 MORE VESICULAR THAN REST & HAS GREEN XTLLN
UNIDENT.MINS FILLING IN ONE LARGER VESICLE;
Location: Filling: UNIDENT.MINS
Shape : TUBULAR
PCE 13 HAS THREE LARGER TUBULAR VESICLES
CONTAINING PLATY XTLS;
Phenocrysts: PLAGIOCLASE
RARE IN PCE 5,ONE PHENO IN PCE 14;
OLIVINE
PCES 14+15 HAVE ONE PARTIALLY ALTERED PHENO;
Replacement: QUARTZ
ZEOLITE
CHLORITE
ALL REPLACEMENT MINERALS FOUND AS AN ALTERATION
CRUST IN PCES 1+4+11-12+18-19,CHLOR ALSO FOUND IN
VEINS;
FERROUS OXIDE
FILLS CRACKS;
Leg : 54 Top/Bottom Interval(mm): 0/1400 Analyst: Mattey, D.
Hole: 421 Sample Midpoint (m) : 97.90
Core: 3 Top of Core Depth (m) : 95.00
Sect: 2 Top of Section Depth(m): 96.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (3-6), 2 (11-14);
Texture : APHYRIC,FINE-GRAINED;
Alteration : FRESH
PCE 1 THIN INDISTINCT WEATHERING RIND;
MOD
PCE 2 MORE PROMINENT WEATHERING RIND,PCE 1 HAS A
SMALL PATCH OF RUSTY WEATHERED CRUST;
Vesicles : Size(mm): Percent: <5
PCE 1 HAS EMPTY VESICLES;
Size(mm): Percent: 0
PCE 2;
Leg : 54 Top/Bottom Interval(mm): 0/ 590 Analyst: Mattey, D.
Hole: 421 Sample Midpoint (m) : 105.09
Core: 4 Top of Core Depth (m) : 104.50
Sect: 1 Top of Section Depth(m): 104.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (2-10), 2 (14-19), 3 (22-29), 4 (32-36),
5 (40-45), 6 (48-51), 7 (55-59);
Texture : APHYRIC,FINE-GRAINED,PCE 4 SLIGHTLY COARSER-GRAINED,
PCE 6 SPARSELY PHYRIC WITH GLASSY MARGIN;
Structure : FRACTURE IN PCE 6 FILLED WITH GREEN ALTERATION
MATERIAL;
Alteration : FRESH
PCES 1+4+6-7;
MOD
PCES 2-3+5;
Vesicles :
Location: Filling:
Shape : LONG,TUBULAR
PCES 1+7;
Location: Filling: UNIDENT.MINS
PCES 2-3+5 HAVE A FEW VESICLES FILLED WITH A BLUE
OR GREENISH-YELLOW UNIDENT SECONDARY MINERAL;
Size(mm): Percent: <5
Location: Filling: UNIDENT.MINS
PCE 4,SOME FILLED WITH WHITE & PALE BLUE
UNIDENT.MINS;
Phenocrysts: PLAGIOCLASE
SPARSELY IN PCE 6 & RARE IN PCE 4;
Replacement: UNIDENTIFIED
UNIDENT BLUE OR GREENISH-YELLOW SECONDARY MINERAL
FOUND IN PCES 2-3+5,WHITE & PALE BLUE UNIDENT.MINS
FOUND IN PCE 4;
Leg : 54 Top/Bottom Interval(mm): 0/ 290 Analyst: Natland, J.
Hole: 421 Sample Midpoint (m) : 0.29
Core: B 1 Top of Core Depth (m) : 0.00
Sect: Top of Section Depth(m): 0.00
LITHOLOGY: PLAG SPARSELY PHYRIC BASALT;
Piece No. : PCES 1 (2-4), 2 (6-15), 3 (17-24);
Texture : SPARSELY PHYRIC,PCE 2 HAS A LOWER FLAT GLASSY EDGE;
Structure : EXTERIOR SURFACES OF PCES ARE JOINT SURFACES;
Alteration : MOD
ALTERATION RINDS PROMINENT ON PCES 2-3;
Comments : SAMPLES CAME UP IN THE BIT,THE DEPTH THEY WERE CORED
IS NOT KNOWN-THEY MAY HAVE FALLEN DOWN THE HOLE
AFTER RETRIEVING CORE 4-1,ORIENTATION OF PCE 2 IS
UNCERTAIN SINCE IT MAY HAVE FALLEN DOWN THE HOLE,
THIN DUSKY BROWN OXIDATION OR FE-MN COATING;
Vesicles : Size(mm): Percent: <1
Phenocrysts: PLAGIOCLASE
Size(mm): <2
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