Leg : 94 Top/Bottom Interval(mm): 740/1500 Analyst: Keigwin, L.D.
Hole: 608 Sample Midpoint (m) : 516.20
Core: 57 Top of Core Depth (m) : 511.70
Sect: 3 Top of Section Depth(m): 515.44
LITHOLOGY: BASALT;
Piece No. : PCE 1A (74-85), 1B (85-99), 1C (101-116),
2 (118-130), 3 (130-150);
Texture : FINE-GRAINED, UPPER EDGE HAS THIN RIND (1-2MM) OF
GLASS, BASALT AND CALCITE FRAGMENTS BELOW 136CM;
Structure : CALCITE VEINS 7MM THICK AT 99-100CM & 118-128CM,
VEIN AT 100CM HAS RECOGNIZABLE NANNOFOSSILS IN SMEAR
SLIDE;
Alteration : ALTERATION RIND HAS TOTAL THICKNESS OF 1CM;
Vesicles : Size(mm): <1 Percent:
Location: THROUGHOUT Filling:
MOSTLY <1MM ALTHOUGH AT 89CM AS LARGE AS 3MM;
Phenocrysts: OLIVINE
Size(mm): <3
PLAGIOCLASE
Size(mm): <3
SMALL PHENOS OF WEATHERED OL & PLAG;
Replacement: CALCITE
Leg : 94 Top/Bottom Interval(mm): 0/1300 Analyst: Keigwin, L.D.
Hole: 608 Sample Midpoint (m) : 516.00
Core: 58 Top of Core Depth (m) : 514.70
Sect: 1 Top of Section Depth(m): 514.70
LITHOLOGY: BASALT;
Piece No. : PCE 1 (2-10), 2 (13-35), 3A (37-43), 3B (43-50),
3C (47-50), 4 (53-62), 5 (64-71), 6 (73-79),
7 (83-90), 8 (92-100), 9 (103-108), 10 (113-117),
11A (121-126), 11B (126-130), 12 (133-148);
Texture : FINE-GRAINED, MANY INDIVIDUAL FRAGMENTS OF CALCITE
(PCES 2&3C&5&8&11);
Structure : LARGER PIECES HAVE CALCITE VEINS UP TO 4CM THICK
(PCES 1-4&11);
Alteration : PCE 7A HAS GREEN ALTERATION RIND;
Comments : PIECES IN 12 ARE VOLCANIC TUFF AND MAY BE DOWN-HOLE
CONTAMINANTS;
Phenocrysts: OLIVINE
Size(mm): <3
PLAGIOCLASE
Size(mm): <3
SMALL PHENOS OF ALTERED OL & PLAG;
Replacement: CALCITE
Leg : 94 Top/Bottom Interval(mm): 0/1300 Analyst: Hill, P.R.
Hole: 608 Sample Midpoint (m) : 522.60
Core: 59 Top of Core Depth (m) : 521.30
Sect: 1 Top of Section Depth(m): 521.30
LITHOLOGY: BASALT;
Piece No. : PCE 1 (3-7), 2 (10-19), 3 (23-27), 4 (32-34),
5 (40-41), 6 (44-53), 7 (60-66), 8 (70-78),
9 (83-103), 10 (107-110), 11 (115-130);
Texture : FINE-GRAINED, ANGULAR CLASTS OF BASALT WITHIN VEINS,
TWO FINE-GRAINED BANDS AT TOP OF PCE 10, HIGHLY
VESICULAR;
Structure : CALCITE VEINS IN PCES 2&4&8&10;
Alteration : FRESH
PCES 1-8;
MOD
PCES 9-11 (PROBABLY MIXED WITH WASH MATERIAL),
EDGES OF VEIN SHOW RED-BROWN ZONE;
EXT
PCE 10 LOOKS HIGHLY ALTERED;
Comments : PCES 9&11 ARE COMPOSED OF SMALL BROKEN PIECES;
Vesicles : HIGHLY VESICULAR, VESICLES LINED WITH BLUE-GRAY
MICROCRYSTALLINE COATING, CONTAIN BROWN CPX? AND
PYRITE;
Groundmass : FELDSPAR ( 50%)
Size(mm): <<1
OLIVINE ( 10%)
Size(mm): <<1
Replacement: CALCITE
PYRITE
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