Leg : 55 Top/Bottom Interval(mm): 0/ 120 Analyst: Avdeiko, G.
Hole: 432A Sample Midpoint (m) : 36.12
Core: 1 Top of Core Depth (m) : 36.00
Sect: 1 Top of Section Depth(m): 36.00
LITHOLOGY: SEDIMENT (SANDSTONE);
CONSISTS OF GRAINS OF .3-.5MM DARK ROCKS (BASALT)
AND MINERALS (PYX 25-30%), RED MATERIAL (HEMATITE
MAYBE AFTER OL TO 10%), LIGHT GRAINS (CARBONATE AND
QUARTZ 20%), CEMENT CARBONATE UP TO 40-45%, THERE
ARE OP.MINS AND APATITE, COLOR 2.5Y4/2;
Piece No. : PCE 1 (2-12);
Leg : 55 Top/Bottom Interval(mm): 170/ 370 Analyst: Avdeiko, G.
Hole: 432A Sample Midpoint (m) : 36.37
Core: 1 Top of Core Depth (m) : 36.00
Sect: 1 Top of Section Depth(m): 36.17
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 2 (17-25), 3 (30-37);
Texture : SUBTRACHYTIC, TRACHYTIC ORIENTATION IS VERTICAL,
APHYRIC;
Structure : FRACTURES AND VUGS FILLED WITH DARK GREEN CLAY
MINERAL AND CARBONATE;
Comments : COLOR DARK GRAY 7.5YR4/0;
Groundmass : PLAGIOCLASE (TO 60%)
LATHS;
PYROXENE (10-15%)
OPAQUE MINERALS ( 5%)
GLASS (20-25%)
ALTERED IN SPOTS;
Leg : 55 Top/Bottom Interval(mm): 420/ 470 Analyst: Avdeiko, G.
Hole: 432A Sample Midpoint (m) : 36.47
Core: 1 Top of Core Depth (m) : 36.00
Sect: 1 Top of Section Depth(m): 36.42
LITHOLOGY: SEDIMENT (CONGLOMERATE);
CONSISTS OF GRAINS OF ALTERED BASALT (30-35%) FROM
1-25MM, CARBONATE ORGANIC FRAGMENTS OF ALGAE AND
CORALS (30-35%) TO 20MM, SILICEOUS GRAINS (2%) FROM
.5-1MM, CEMENT CARBONACEOUS;
Piece No. : PCE 4 (42-47);
Leg : 55 Top/Bottom Interval(mm): 0/ 600 Analyst: Avdeiko, G.
Hole: 432A Sample Midpoint (m) : 42.10
Core: 2 Top of Core Depth (m) : 41.50
Sect: 1 Top of Section Depth(m): 41.50
LITHOLOGY: SEDIMENTARY ROCKS;
0-60CM;
Leg : 55 Top/Bottom Interval(mm): 610/1070 Analyst: Avdeiko, G.
Hole: 432A Sample Midpoint (m) : 42.57
Core: 2 Top of Core Depth (m) : 41.50
Sect: 1 Top of Section Depth(m): 42.11
LITHOLOGY: PLAG PHYRIC BASALT;
MASSIVE;
Piece No. : PCE 7 (62-65), 8A (68-75), 8B (75-83), 8C (83-90),
8D (90-96), 8E (96-107);
Texture : PORPHYRITIC;
Structure : SMALL VEINS (TO .5MM) FILLED BY CARBONATE;
Vesicles : Size(mm): 2-5 Percent: 5
Location: Filling: CLAYS
DARK GREEN CLAYS;
Groundmass : PLAGIOCLASE ( 50%)
Size(mm): TO 3
LATHS;
PYROXENE ( <5%)
OPAQUE MINERALS ( 5%)
COMBINATION (25-30%)
INCLUDES ALTERED OL + ALTERED GLASS, GLASS AND OL
ALTERED TO GREEN CLAYS;
Phenocrysts: PLAGIOCLASE (10-15%)
TABULAR, USUALLY 2-3X8-10MM BUT SOME 5X15MM,
PARTLY ALTERED TO DARK GREEN CLAY MINERAL (10%);
OLIVINE ( 2-3%)
Size(mm): TO 2
PCE 7 HAS IDDINGSITIZED OL PHENOS;
Replacement: IDDINGSITE
PCE 7;
Leg : 55 Top/Bottom Interval(mm): 1100/1480 Analyst: Avdeiko, G.
Hole: 432A Sample Midpoint (m) : 42.98
Core: 2 Top of Core Depth (m) : 41.50
Sect: 1 Top of Section Depth(m): 42.60
LITHOLOGY: PLAG PHYRIC BASALT;
FRACTURED BOTTOM OF FLOW UNIT 1, SAME DESCRIPTION
AS CORE 2-1 61-107 CM;
Piece No. : PCE 9 (110-119), 10 (121-124), 11 (126-134),
12 (136-139), 13 (142-148);
Texture : PORPHYRITIC;
Comments : BOTTOM OF FLOW UNIT IS MORE ALTERED AND OXIDIZED;
Vesicles : Size(mm): Percent: 25-30
PCE 12-13 VESICLES MORE ABUNDANT, USUALLY FILLED
BUT SOME ARE LINED WITH OXIDIZED CLAYS;
Phenocrysts: PLAGIOCLASE
PLAG ALTERED USUALLY IN THE CENTRAL PARTS;
Leg : 55 Top/Bottom Interval(mm): 0/ 440 Analyst: Avdeiko, G.
Hole: 432A Sample Midpoint (m) : 43.44
Core: 2 Top of Core Depth (m) : 41.50
Sect: 2 Top of Section Depth(m): 43.00
LITHOLOGY: PLAG MODERATELY PHYRIC BASALT;
FLOW UNIT 2;
Piece No. : PCE 1 (0-3), 2 (5-11), 3 (13-18), 4 (19-27),
5 (28-30), 6 (32-35), 7 (37-44);
Texture : DIABASIC, PHYRIC;
Structure : SMALL VUGS (TO 10MM) LINED WITH CLAYS, SMALL
FRACTURES;
Alteration : MOD;
Comments : COLOR GREENISH DARK GRAY TO GREENISH BLACK, NEAR
VESICLES AND SMALL FRACTURES THERE ARE OXIDIZED
ZONES;
Vesicles : Size(mm): TO 10 Percent: 25
LINED WITH CLAYS;
Groundmass : PLAGIOCLASE (40-50%)
Size(mm): TO 3
LATHS;
PYROXENE ( <5%)
OLIVINE ( 5%)
ALTERED TO CLAYS AND IDDINGS;
GLASS ( 15%)
INTERSTITIAL, ALTERED TO CLAY;
OPAQUE MINERALS ( 5%)
GNDMASS 65% DIABASIC;
Phenocrysts: PLAGIOCLASE ( 10%)
Size(mm): 1X3-3X8
PARTLY ALTERED TO DARK GREEN CLAY;
Replacement: IDDINGSITE
AFTER OL;
Leg : 55 Top/Bottom Interval(mm): 460/1480 Analyst: Avdeiko, G.
Hole: 432A Sample Midpoint (m) : 44.48
Core: 2 Top of Core Depth (m) : 41.50
Sect: 2 Top of Section Depth(m): 43.46
LITHOLOGY: PLAG PHYRIC BASALT;
Piece No. : PCE 8 (46-48), 9 (50-55), 10 (57-64), 11A (65-72),
11B (73-81), 11C (81-91), 11D (92-99), 11E (99-107),
11F (107-112), 12 (115-118), 13 (120-122),
14 (123-126), 15 (127-129), 16 (132-136),
17A (137-142), 17B (142-148);
Texture : DIABASIC, PHYRIC;
Structure : CARBONATE VEIN IN PCES 11C AND 11D, FRACTURES ARE
FILLED WITH CALCITE WITH UP TO 15MM OXIDIZED ZONES;
Alteration : MOD
PCES 8-12;
EXTENSIVELY ALTERED
PCES 13-17;
Comments : COLOR DARK GRAY 2.5Y4/0, PCES 13-17 SHOW FLOW
FRACTURE OXIDIZED ZONE;
Vesicles : Size(mm): .5-5 Percent: <5
SOME VESICLES LINED WITH CLAYS;
Groundmass : 75-80% DIABASIC GNDMASS, MINERAL COMPOSITION
LIKE PCES 1-7;
Phenocrysts: PLAGIOCLASE (15-20%)
Size(mm): TO 7X15
Replacement: CALCITE
IN FRACTURES;
Leg : 55 Top/Bottom Interval(mm): 0/ 670 Analyst: Avdeiko, G.
Hole: 432A Sample Midpoint (m) : 45.17
Core: 2 Top of Core Depth (m) : 41.50
Sect: 3 Top of Section Depth(m): 44.50
LITHOLOGY: PLAG PHYRIC BASALT;
MASSIVE PART OF FLOW UNIT 2;
Piece No. : PCE 1A (2-8), 1B (8-15), 1C (16-24), 1D (24-31),
1E (31-58), 2 (60-67);
Texture : DIABASIC, PHYRIC;
Structure : CARBONATE VEIN AT 44CM, FRACTURES ARE FILLED WITH
CARBONATE AND HAVE OXIDIZED ZONES, VUGS UP TO 20MM
ARE LINED WITH CLAYS AND CARBONATE;
Alteration : MOD
2-54;
EXTENSIVE
54-67CM, ALTERATION IS MORE IN PCE 1E-2 WHERE
THERE ARE GREEN YELLOW CLAYS,
MORE OXIDIZED TOWARD THE BOTTOM;
Vesicles : Size(mm): .5-3 Percent: 5-15
VESICLES INCREASE TOWARDS BOTTOM OF PCE 1E AND 2,
LINED WITH CLAYS AND CARBONATE;
Groundmass : PLAGIOCLASE (40-60%)
Size(mm): 2.5-3
LATHS;
OLIVINE ( 5-10%)
IDDINGSITIZED;
GLASS (15-20%)
INTERSTITIAL, COMPLETELY ALTERED TO GREEN AND
GREEN YELLOW CLAYS;
OPAQUE MINERALS ( 5%)
PYROXENE ( >5%)
GNDMASS DIABASIC (75-80% IN PCES 1A-1D AND
60-65% IN PCES 1E-2);
Phenocrysts: PLAGIOCLASE (15-20%)
Size(mm): 1X3-8X20
TABULAR, PLAG PARTLY ALTERED TO GREEN AND YELLOW
GREEN CLAYS, PHENOS NEAR BOTTOM MORE ALTERED,
MORE PHENOS TOWARD BOTTOM OF PCE 1E AND 2 (25%);
Replacement: IDDINGSITE
Minerals Replaced: OL
Leg : 55 Top/Bottom Interval(mm): 0/ 170 Analyst: Avdeiko, G.
Hole: 432A Sample Midpoint (m) : 45.37
Core: 2 Top of Core Depth (m) : 41.50
Sect: CC Top of Section Depth(m): 45.30
LITHOLOGY: PLAG PHYRIC BASALT;
SAME DESCRIPTION AS CORE 2-3 PCES 1E-2;
Leg : 55 Top/Bottom Interval(mm): 200/ 300 Analyst: Avdeiko, G.
Hole: 432A Sample Midpoint (m) : 45.50
Core: 2 Top of Core Depth (m) : 41.50
Sect: CC Top of Section Depth(m): 45.40
LITHOLOGY: SEDIMENTARY;
RED LATERITE;
Leg : 55 Top/Bottom Interval(mm): 0/1450 Analyst: Dalrymple, G.B.
Hole: 432A Sample Midpoint (m) : 56.45
Core: 3 Top of Core Depth (m) : 55.00
Sect: 1 Top of Section Depth(m): 55.00
LITHOLOGY: PLAG-OL SPARSELY PHYRIC BASALT;
ENTIRE SECTION FROM FLOW UNIT 3;
Piece No. : PCE 1 (0-25), 2 (28-36), 3 (38-46), 4 (47-54),
5 (56-63), 6 (64-69), 7 (70-78), 8 (81-91),
9 (94-99), 10 (102-114), 11 (116-124), 12 (125-132),
13 (134-142), 14 (144-145);
Texture : FINE-GRAINED, SPARSELY PHYRIC;
Structure : CALCITE-FILLED FRACTURES 1-2MM THICK COMMON IN
UPPER HALF OF SECTION, BELOW PCE 10 FRACTURES <1MM
ARE CALCITE FILLED, A FEW PCES BORDER ON BEING
SCORIACEOUS;
Alteration : EXTENSIVELY
0-105CM, FLOW BECOMES PROGRESSIVELY LESS
OXIDIZED AND FRACTURED DOWN TO PCE 10 WHICH IS
ONLY MODERATELY ALTERED AND GREENISH GRAY IN
COLOR;
MOD
105-145CM, PCES 10-13 HAVE RED-BROWN LINEAR ZONES
OF ALTERATION, FROM PCE 12 DOWN OXIDIZED BASALT
PROBABLY FROM OXIDIZED TOP OF FLOW UNIT AND
IMMEDIATELY BELOW CORE 2-CC, COLOR DARK REDDISH
BROWN 5YR3/2;
Vesicles : Size(mm): Percent: 0
Groundmass : PLAGIOCLASE (55-60%)
TOO FINE-GRAINED TO DETERMINE TEXTURE OR GNDMASS
MINERALOGY;
Phenocrysts: OLIVINE ( <1%)
Size(mm): .5-2
PLAGIOCLASE ( <1%)
Size(mm): .5-2
Leg : 55 Top/Bottom Interval(mm): 0/1460 Analyst: Dalrymple, G.B.
Hole: 432A Sample Midpoint (m) : 57.96
Core: 3 Top of Core Depth (m) : 55.00
Sect: 2 Top of Section Depth(m): 56.50
LITHOLOGY: PLAG-OL SPARSELY PHYRIC BASALT;
SAME FLOW UNIT AS CORE 3-1, ESSENTIALLY UNIFORM
IN TEXTURE AND COMPOSITION THROUGHOUT ENTIRE
SECTION;
Piece No. : PCE 1 (4-11), 2 (13-20), 3 (22-29), 4 (32-40),
5 (42-49), 6 (52-64), 7 (65-74), 8 (76-83),
9 (85-91), 10 (93-99), 11 (102-110), 12 (111-118),
13 (120-125), 14 (128-135), 15 (137-146);
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