Leg : 55 Top/Bottom Interval(mm): 0/1430 Analyst: Avdeiko, G.
Hole: 433A Sample Midpoint (m) : 164.93
Core: 20 Top of Core Depth (m) : 163.50
Sect: 1 Top of Section Depth(m): 163.50
LITHOLOGY: PLAG-OL PHYRIC BASALT;
BEGINNING OF FLOW UNIT 1, MASSIVE;
Piece No. : PCE 1A (2-10), 1B (10-17), 1C (17-30), 1D (30-40),
1E (40-50), 1F (50-61), 1G (61-69), 2A (72-83),
2B (83-91), 2C (91-103), 2D (103-116), 3A (119-127),
3B (127-135), 3C (135-142);
Texture : PHYRIC;
Structure : CARBONATE VEINS UP TO 3MM THICK AT 77 AND 120CMM
AND A VERTICAL VEIN 1MM THICK FROM 122-143CM,
SMALL CLAY VEINS (.3-.5X20MM) AT 71-78CM, WALLS
OF CARBONATE VEINS ARE LINED WITH CLAYS, FRACTURE
AFTER VERTICAL VEIN AT 122-143CM;
Alteration : EXTENSIVELY
FROM 25-35CM AND 68-78CM;
SLIGHTLY
REST OF SECTION;
Comments : COLOR GRAY 2.5YR5/0;
Groundmass : PLAGIOCLASE
Size(mm): TO 2
LATHS;
OLIVINE
Size(mm): TO .5
ALTERED YELLOW BROWN;
PYROXENE
GLASS
ALTERED;
Phenocrysts: PLAGIOCLASE (10-12%)
Size(mm): 1-7
OLIVINE ( 3-5%)
Size(mm): .5-3
ALTERED TO IDDINGS, YELLOW BROWN COLOR, NUMBER OF
OL PHENOS INCREASES TOWARD BOTTOM AFTER PCE 2C;
Replacement: IDDINGSITE
AFTER OL PHENOS;
Leg : 55 Top/Bottom Interval(mm): 0/ 330 Analyst: Avdeiko, G.
Hole: 433A Sample Midpoint (m) : 165.33
Core: 20 Top of Core Depth (m) : 163.50
Sect: 2 Top of Section Depth(m): 165.00
LITHOLOGY: PLAG-OL PHYRIC BASALT;
SIMILAR TO DESCRIPTION OF LOWER PART OF CORE 20-1,
MAY BE BOTTOM OF FLOW UNIT (COOLING UNIT);
Piece No. : PCE 1A (2-10), 1B (10-18), 2A (20-26), 2B (26-33);
Structure : VUGS WITH CLAY WALLS FILLED WITH CARBONATE;
Alteration : EXT;
Comments : THERE IS A 10MM SECTION OF SANDSTONE AT BOTTOM OF
PCE 2B;
Vesicles : VESICLES WITH CLAY WALLS FILLED WITH CARBONATE;
Texture : PHYRIC;
Leg : 55 Top/Bottom Interval(mm): 330/ 540 Analyst: Avdeiko, G.
Hole: 433A Sample Midpoint (m) : 165.54
Core: 20 Top of Core Depth (m) : 163.50
Sect: 2 Top of Section Depth(m): 165.33
LITHOLOGY: PLAG-OL PHYRIC BASALT;
DESCRIPTION SAME AS CORE 20-1;
Piece No. : PCE 2C (33-40), 2D (40-47), 2E (47-54);
Texture : PHYRIC;
Structure : CARBONATE VEINS TO 3MM THICK (36, 40-41CM);
Alteration : EXT;
Leg : 55 Top/Bottom Interval(mm): 560/ 840 Analyst: Avdeiko, G.
Hole: 433A Sample Midpoint (m) : 165.84
Core: 20 Top of Core Depth (m) : 163.50
Sect: 2 Top of Section Depth(m): 165.56
LITHOLOGY: PLAG-OL PHYRIC BASALT;
SIMILAR TO PREVIOUS SECTIONS WITHOUT VESICLES;
Piece No. : PCE 3A (56-63), 3B (63-70), 3C (70-76), 3D (76-80),
3E (80-84);
Texture : PHYRIC;
Structure : CARBONATE VEIN AT 59CM, CLAY VEIN AT 80CM IN PCE 3D;
Alteration : MOD
Leg : 55 Top/Bottom Interval(mm): 0/1000 Analyst: Avdeiko, G.
Hole: 433A Sample Midpoint (m) : 167.50
Core: 21 Top of Core Depth (m) : 166.50
Sect: 1 Top of Section Depth(m): 166.50
LITHOLOGY: PLAG-OL PHYRIC BASALT;
MASSIVE, SIMILAR DESCRIPTION TO CORE 20-2 FROM 55-84
CM, SAME FLOW UNIT AS CORE 20-2;
Piece No. : PCE 1A (2-11), 1B (11-19), 1C (20-25), 1D (25-37),
1E (37-45), 1F (45-52), 1G (52-61), 2A (63-80),
2B (80-87), 2C (87-94), 2D (94-99);
Texture : PHYRIC;
Alteration : MOD
THERE IS SOME FRESH OL;
Leg : 55 Top/Bottom Interval(mm): 1000/1340 Analyst: Avdeiko, G.
Hole: 433A Sample Midpoint (m) : 167.84
Core: 21 Top of Core Depth (m) : 166.50
Sect: 1 Top of Section Depth(m): 167.50
LITHOLOGY: PLAG-OL PHYRIC BASALT;
SAME FLOW UNIT AND DESCRIPTION AS CORE 20-2;
Piece No. : PCE 2E (100-114), 3 (117-123), 4 (126-129),
5 (132-134);
Texture : PHYRIC;
Structure : CARBONATE VEINS WITH CLAY WALLS;
Alteration : EXT
MORE ALTERED THAN TOP OF SECTION 21, SUBHORIZONTAL
ALTERED CLAY STRIPES;
Leg : 55 Top/Bottom Interval(mm): 0/ 380 Analyst: Avdeiko, G.
Hole: 433A Sample Midpoint (m) : 168.38
Core: 21 Top of Core Depth (m) : 166.50
Sect: 2 Top of Section Depth(m): 168.00
LITHOLOGY: PLAG-OL PHYRIC BASALT;
SIMILAR TO CORE 21-1 BELOW 135CM, MASSIVE;
Piece No. : PCE 1A (2-32), 1B (32-38);
Structure : CLAY AND CARBONATE VEINS WITH CLAY WALLS (7-8,
36-37CM);
Alteration : EXT
SUBHORIZONTAL ALTERED STRIPES;
Vesicles : SOME VESICLES FILLED WITH CLAYS;
Leg : 55 Top/Bottom Interval(mm): 380/ 700 Analyst: Avdeiko, G.
Hole: 433A Sample Midpoint (m) : 168.70
Core: 21 Top of Core Depth (m) : 166.50
Sect: 2 Top of Section Depth(m): 168.38
LITHOLOGY: PLAG-OL PHYRIC BASALT;
SIMILAR TO CORE 21-1 ABOVE 105CM;
Piece No. : PCE 1C (38-45), 1D (45-54), 2A (58-69);
Structure : CLAY AND CARBONATE VEIN WITH CLAY WALLS AT 41-45CM;
Alteration : MOD;
Leg : 55 Top/Bottom Interval(mm): 700/1140 Analyst: Avdeiko, G.
Hole: 433A Sample Midpoint (m) : 169.14
Core: 21 Top of Core Depth (m) : 166.50
Sect: 2 Top of Section Depth(m): 168.70
LITHOLOGY: PLAG-OL PHYRIC BASALT;
SIMILAR TO CORE 21-2 PCES 1A-1B;
Piece No. : PCE 2B (69-83), 2C (83-98), 3 (100-114);
Texture : PHYRIC;
Alteration : EXT;
Leg : 55 Top/Bottom Interval(mm): 1150/1460 Analyst: Avdeiko, G.
Hole: 433A Sample Midpoint (m) : 169.46
Core: 21 Top of Core Depth (m) : 166.50
Sect: 2 Top of Section Depth(m): 169.15
LITHOLOGY: PLAG-OL PHYRIC BASALT;
SIMILAR TO CORE 21-2 PCES 1C-2A;
Piece No. : PCE 4 (115-123), 5A (125-130), 5B (131-140),
6 (143-146);
Texture : PHYRIC;
Structure : CLAY VEINS AND CARBONATE VEINS WITH CLAY WALLS
(117,121,125,132,137CM);
Alteration : MOD;
Leg : 55 Top/Bottom Interval(mm): 0/1480 Analyst: Avdeiko, G.
Hole: 433A Sample Midpoint (m) : 170.98
Core: 21 Top of Core Depth (m) : 166.50
Sect: 3 Top of Section Depth(m): 169.50
LITHOLOGY: PLAG-OL PHYRIC BASALT;
MASSIVE, SAME DESCRIPTION AS CORE 21-1, SAME FLOW
UNIT AS CORE 21-2;
Piece No. : PCE 1A (2-11), 1B (11-24), 1C (24-32), 2 (34-35),
3 (37-40), 4 (42-46), 5 (48-59), 6 (60-65),
7A (66-81), 7B (81-85), 8A (87-101), 8B (101-104),
8C (105-116), 8D (116-129), 8E (129-138),
8F (138-145), 8G (145-148);
Texture : PHYRIC;
Structure : FEW THIN CALCITE VEINS PCES 1A-B,2,6;
Alteration : SLIGHTLY
SLIGHT ALTERATION ALONG FRACTURES IN PCES 1C AND
5;
Vesicles : Size(mm): 1-3 Percent: RARE
Location: Filling: CLAY
GREEN;
Groundmass : MINERAL % SAME AS CORE 20-1, GNDMASS MINERALS
INCLUDING OL APPEAR FRESH;
Phenocrysts: PLAGIOCLASE
Size(mm): 1-5
FRESH;
PYROXENE
Size(mm): 1-2
MICROPHENOS, FRESH;
OLIVINE
RARE REPLACED BY CLAY;
Leg : 55 Top/Bottom Interval(mm): 0/1470 Analyst: Dalrymple, G.B.
Hole: 433A Sample Midpoint (m) : 172.47
Core: 21 Top of Core Depth (m) : 166.50
Sect: 4 Top of Section Depth(m): 171.00
LITHOLOGY: PLAG-OL PHYRIC BASALT;
MASSIVE, SAME FLOW UNIT AS CORE 21-3 SIMILAR
DESCRIPTION TO CORE 21-3;
Piece No. : PCE 1 (2-11), 2 (14-23), 3 (26-31), 4 (33-38),
5 (40-45), 6 (46-60), 7 (60-62), 8 (64-72),
9 (74-83), 10 (85-92), 11 (94-99), 12 (101-103),
13A (105-116), 13B (116-121), 14 (124-129),
15 (132-143), 16 (144-147);
Texture : PHYRIC;
Structure : CALCITE VEINS 54,65,76,79,95,102CM, MANY SMALL
CALCITE VEINS 1-2MM THICK IN PCE 13A;
Alteration : SLIGHTLY;
Groundmass : GNDMASS OL LOOKS FRESH;
Phenocrysts: VERY SIMILAR TO PREVIOUS SECTIONS EXCEPT SLIGHTLY
FEWER PHENOS, OL PHENOS ALTERED TO IDDINGS AND
GREEN CLAY;
Replacement: IDDINGSITE
Minerals Replaced: OL
AFTER OL PHENOS;
Leg : 55 Top/Bottom Interval(mm): 0/ 470 Analyst: Dalrymple, G.B.
Hole: 433A Sample Midpoint (m) : 172.97
Core: 21 Top of Core Depth (m) : 166.50
Sect: 5 Top of Section Depth(m): 172.50
LITHOLOGY: PLAG-OL PHYRIC BASALT;
SAME FLOW UNIT AND PETROGRAPHY AS CORE 21-4;
Piece No. : PCE 1 (3-9), 2 (13-18), 3 (21-27), 4 (30-31),
5 (37-38), 6 (43-47);
Texture : PHYRIC;
Structure : CALCITE VEIN AT 7CM;
Alteration : SLIGHTLY;
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