Leg : 58 Top/Bottom Interval(mm): 0/ 570 Analyst: Marsh, N.
Hole: 443 Sample Midpoint (m) : 457.07
Core: 49 Top of Core Depth (m) : 453.50
Sect: 3 Top of Section Depth(m): 456.50
LITHOLOGY: SEDIMENT;
Leg : 58 Top/Bottom Interval(mm): 570/1500 Analyst: Marsh, N.
Hole: 443 Sample Midpoint (m) : 458.00
Core: 49 Top of Core Depth (m) : 453.50
Sect: 3 Top of Section Depth(m): 457.07
LITHOLOGY: PLAG MODERATELY PHYRIC BASALT;
Piece No. : PCE 1 (57-60), 2 (63-69), 3 (72-78), 4A (80-86),
4B (86-94), 4C (94-102), 5 (103-110), 6 (112-115),
7 (116-120), 8A (121-133), 8B (134-142),
9 (145-150);
Texture : GLASSY MARGIN AND CHILL ZONE IN PCE 1, COARSE AND
MICRODIABASIC IN PCES 3-9, PLAG MODERATELY PHYRIC;
Structure : VEIN FILLED WITH CALC AND BROWN MATERIAL IN
PCES 4A+4B;
Alteration : FRESH;
NO ALTERATION VISIBLE IN BORDERING BASALT;
Comments : BASALT IS GREY COLOR;
Vesicles : Size(mm): <1 Percent: 3
PCE 1;
Size(mm): <1 Percent: 7.5
PCE 2;
Location: Filling: ZEOL
ID UNCERTAIN, SOME LARGER VESICLES (5MM ACROSS)
ARE FILLED BY WHITE OR CLEAR XTLLINE ZEOL (?) ON
EXTERNAL DRILLCUT FACES FOR PCES 3-9
Size(mm): Percent: 7.5
Location: Filling: CLAY
PCES 3-9, OCCASIONAL CLAY LINED VESICLES;
Phenocrysts: PLAGIOCLASE ( 7.5%)
PCES 2-9, NOT MENTIONED IN PCE 1;
Replacement: CALCITE
IN VEINS PCES 4A+4B;
CLAY
CLAY LINES SOME VESICLES IN PCES 3-9;
ZEOLITE
ID UNCERTAIN, THOUGHT TO FILL VESICLES;
Leg : 58 Top/Bottom Interval(mm): 0/1160 Analyst: Marsh, N.
Hole: 443 Sample Midpoint (m) : 459.16
Core: 49 Top of Core Depth (m) : 453.50
Sect: 4 Top of Section Depth(m): 458.00
LITHOLOGY: PLAG PHYRIC BASALT;
Piece No. : PCE 1 (0-5), 2 (7-13), 3 (16-22), 4 (25-28),
5A (31-61), 5B (60-66), 6 (68-76), 7 (77-93),
8 (95-106), 9 (109-115);
Texture : PLAG MODERATELY PHYRIC, COARSE-GRAINED ALMOST
MICRODIABASIC;
Alteration : FRESH;
Comments : GREY COLOR BASALT;
Vesicles :
Location: Filling: CLAY
ODD CLAY FILLED VESICLE;
Phenocrysts: PLAGIOCLASE (10-20%)
ODD PYX PHENO;
Leg : 58 Top/Bottom Interval(mm): 0/ 500 Analyst: Marsh, N.
Hole: 443 Sample Midpoint (m) : 463.50
Core: 50 Top of Core Depth (m) : 463.00
Sect: 1 Top of Section Depth(m): 463.00
LITHOLOGY: SEDIMENT;
Comments : UPHOLE CONTAMINATION;
Leg : 58 Top/Bottom Interval(mm): 500/1350 Analyst: Marsh, N.
Hole: 443 Sample Midpoint (m) : 464.35
Core: 50 Top of Core Depth (m) : 463.00
Sect: 1 Top of Section Depth(m): 463.50
LITHOLOGY: PLAG-PYX PHYRIC BASALT;
Piece No. : PCE 1 (5-10), 2 (10-20), 3 (23-27), 4 (30-40),
5A (43-53), 5B (53-60), 6 (63-70), 7 (73-76),
8 (79-82), 9 (85-96), 10 (99-115), 11A (117-127),
11B (129-134);
Texture : PLAG-PYX PHYRIC, FINE-GRAINED;
Structure : AMYGDULES FILLED WITH WHITE ZEOLITES (?) AND CALC
<<1%, VEINS 2MM THICK FILLED WITH CALC+PYRITES AND
POSSIBLY PYRRHOTITE OR CHALCOPYRITE ON JOINT
SURFACES ON PCE 10, MAYBE CHLORITE ON VEIN SURFACES;
Alteration : FRESH
LITTLE EVIDENCE OF WEATHERING;
Comments : MEDIUM GREY BASALT;
Vesicles : Size(mm): Percent: 0
NO VISIBLE VESICLES;
Phenocrysts: PLAGIOCLASE (10-20%)
Size(mm): 2-7
EUHEDRAL XTLS;
PYROXENE ( <<1%)
Size(mm): 2-4
Replacement: ZEOLITE
ID UNCERTAIN, THOUGHT TO BE IN AMYGDULES;
CALCITE ( <<1%)
IN AMYGDULES AND IN VEINS;
PYRITES
IN VEINS PCE 10;
CHALCOPYRITE
ID UNCERTAIN, MAY BE ON JOINT SURFACES OF VEINS;
PYRRHOTITE
ID UNCERTAIN, MAY BE ON JOINT SURFACES OF VEINS;
Leg : 58 Top/Bottom Interval(mm): 0/1500 Analyst: Dick, H.
Hole: 443 Sample Midpoint (m) : 466.00
Core: 50 Top of Core Depth (m) : 463.00
Sect: 2 Top of Section Depth(m): 464.50
LITHOLOGY: PLAG-PYX PHYRIC BASALT;
Piece No. : PCE 1A (0-18), 1B (18-31), 1C (31-40), 1D (41-52),
1E (51-60), 1F (59-68), 1G (68-78), 1H (79-85),
1I (85-90), 1J (93-100), 2 (102-108), 3 (110-115),
4 (117-122), 5 (124-125), 6 (125-137), 7 (138-150);
Texture : PHYRIC, FINE GRAINED;
Structure : CARBONATE VEIN FILLINGS ABUNDANT;
Alteration : FRESH;
Comments : MEDIUM GREY COLOR;
Phenocrysts: PLAGIOCLASE (10-20%)
Size(mm): 2.0-7.0
EUHEDRAL;
PYROXENE ( <1%)
Size(mm): 2-4
Replacement: CARBONATE
FOUND IN VEINS;
ARAGONITE
PYRITE
BOTH FOUND FREE GROWING, POSSIBLY MARCASITE;
ALSO A GREEN CLAYEY MINERAL POSSIBLY GLAUCONITE IS
FOUND FREE GROWING;
Leg : 58 Top/Bottom Interval(mm): 0/1470 Analyst: Dick, H.
Hole: 443 Sample Midpoint (m) : 467.47
Core: 50 Top of Core Depth (m) : 463.00
Sect: 3 Top of Section Depth(m): 466.00
LITHOLOGY: PLAG-PYX PHYRIC BASALT;
Piece No. : PCE 1 (1-12), 2 (14-19), 3 (20-24), 4A (26-35),
4B (34-43), 5A (45-58), 5B (58-64), 6 (65-73),
7 (74-88), 8 (90-99), 9 (100-104), 10 (105-111),
11 (112-116), 12 (119-131), 13 (132-135),
14 (137-143), 15 (146-147);
Texture : PHYRIC, FINE GRAINED;
Structure : VEINS FILLED WITH CARBONATE SOME SULPHIDE POSSIBLY
PYRITE AND SOME GREEN CLAY MINERAL;
Alteration : FRESH;
Comments : MEDIUM GREY COLOR;
Phenocrysts: PLAGIOCLASE (10-20%)
Size(mm): 2-7
EUHEDRAL;
PYROXENE ( <1%)
Size(mm): 2-3
Replacement: CARBONATE
FOUND IN VEINS ALONG WITH SOME SULPHIDE POSSIBLY
PYRITE AND SOME GREEN CLAY MINERAL;
Leg : 58 Top/Bottom Interval(mm): 0/1480 Analyst: Dick, H.
Hole: 443 Sample Midpoint (m) : 468.98
Core: 50 Top of Core Depth (m) : 463.00
Sect: 4 Top of Section Depth(m): 467.50
LITHOLOGY: PLAG-PYX PHYRIC BASALT;
Piece No. : PCE 1A (1-20), 1B (20-27), 2 (28-40), 3A (42-47),
3B (45-53), 4 (55-64), 5 (65-79), 6 (80-87),
7 (88-95), 8 (98-102), 9 (104-108), 10 (112-118),
11 (119-129), 12 (131-136), 13 (138-148);
Texture : PHYRIC, FINE GRAINED;
Structure : VEINS FILLED WITH CARB AND CLAY MINERALS IN INTERVAL
0-25CM;
Alteration : FRESH;
Comments : MEDIUM GREY COLOR;
Phenocrysts: PLAGIOCLASE (10-20%)
Size(mm): 2-7
IN INTERVAL 102-137CM PHENOS ARE SAUSSURITIZED;
PYROXENE ( <1%)
Size(mm): 2
Replacement: CARBONATE
CLAY
BOTH ABOVE FOUND IN VEINS IN INTERVAL 0-25CM;
Leg : 58 Top/Bottom Interval(mm): 0/ 60 Analyst: Dick, H.
Hole: 443 Sample Midpoint (m) : 472.56
Core: 51 Top of Core Depth (m) : 472.50
Sect: 1 Top of Section Depth(m): 472.50
LITHOLOGY: OL-PLAG PHYRIC BASALT;
Piece No. : PCE 1 (1-6);
Texture : FINE GRAINED TO APHANITIC;
Alteration : SLIGHTLY;
Comments : POSSIBLY SLUMP FROM ABOVE WITH THE APPROX 1 METER OF
TALUS AND SLURRY THAT CAME DOWN THE HOLE WITH THIS
RECOVERY;
BROWN COLOR;
Phenocrysts: OLIVINE ( 4%)
Size(mm): 1
PLAGIOCLASE ( 8%)
Size(mm): 1
PLAG PHENOS IN 2 BANDS 1CM WIDE ACROSS ROCK;
Leg : 58 Top/Bottom Interval(mm): 70/ 200 Analyst: Dick, H.
Hole: 443 Sample Midpoint (m) : 472.70
Core: 51 Top of Core Depth (m) : 472.50
Sect: 1 Top of Section Depth(m): 472.57
LITHOLOGY: PLAG PHYRIC BASALT;
Piece No. : PCE 2 (7-19);
Texture : PHYRIC, FINE TO MEDIUM GRAINED;
Vesicles : VEINS AND AMYGDULES FILLED WITH CARBONATE, STAINED
AMYGDULES LOOK LIKE OLIVINE;
Alteration : SLIGHTLY;
Phenocrysts: PLAGIOCLASE
Size(mm): 2-5
EUHEDRAL;
Replacement: CARBONATE
FOUND IN VEINS AND AMYGDULES;
Leg : 58 Top/Bottom Interval(mm): 0/1500 Analyst: Dick, H.
Hole: 443 Sample Midpoint (m) : 479.00
Core: 52 Top of Core Depth (m) : 477.50
Sect: 1 Top of Section Depth(m): 477.50
LITHOLOGY: PLAG PHYRIC BASALT;
Piece No. : PCE 1 (0-6), 2 (7-16), 3 (17-21), 4 (22-25),
5A (27-31), 5B (31-48), 5C (49-54), 6A (56-60),
6B (60-66), 6C (66-71), 6D (72-78), 6E (78-85),
6F (87-92), 6G (93-103), 6H (102-104), 6I (103-110),
6J (111-120), 6K (118-124), 6L (124-134),
6M (134-140), 6N (140-150);
Texture : PHYRIC, MEDIUM TO FINE GRAINED, NO CHILL ZONES;
Structure : AMYGDULES 3 PERCENT AND ABUNDANT VEINS ARE FILLED
WITH CARBONATE, MANY MORE AMYGDULES FILLED WITH
CLAY;
Alteration : SLIGHTLY;
Vesicles : Size(mm): Percent: 3-5
Location: Filling: CARB,CLAY
Phenocrysts: PLAGIOCLASE ( 10%)
Size(mm): 2-4
Replacement: CARBONATE
FOUND IN AMYGDULES + VEINS + VESICLES;
CLAY
FOUND IN AMYGDULES;
Leg : 58 Top/Bottom Interval(mm): 0/1500 Analyst: Dick, H.
Hole: 443 Sample Midpoint (m) : 480.50
Core: 52 Top of Core Depth (m) : 477.50
Sect: 2 Top of Section Depth(m): 479.00
LITHOLOGY: PLAG PHYRIC BASALT;
Piece No. : PCE 1A (1-9), 1B (9-20), 1C (21-32), 1D (32-47),
1E (46-53), 1F (53-58), 2 (60-63), 3 (64-68),
4A (70-78), 4B (79-85), 4C (82-92), 4D (92-97),
4E (97-101), 4F (100-111), 4G (108-116),
4H (116-135), 4I (133-149);
Texture : NO CHILL ZONES, PHYRIC;
Vesicles : Size(mm): 0.5-2.0 Percent: 3-5
Location: Filling: SMEC,CALCITE
Shape : COMPOSITE
Structure : CARBONATE VEINS ARE ABUNDANT;
Alteration : SLIGHTLY
PCES 1A-4B +4E;
FRESH
PCE 4C+4D+4F+4G+4H+4I;
Vesicles : Size(mm): Percent: 0-2
HALF FILLED WITH ALTERATION PRODUCTS;
Phenocrysts: PLAGIOCLASE ( 10%)
Size(mm): 2-8.0
Replacement: SMECTITE
CALCITE
BOTH FOUND IN AMYGDULES;
CARBONATE
FOUND IN VEINS;
Leg : 58 Top/Bottom Interval(mm): 0/1350 Analyst: Dick, H.
Hole: 443 Sample Midpoint (m) : 481.85
Core: 52 Top of Core Depth (m) : 477.50
Sect: 3 Top of Section Depth(m): 480.50
LITHOLOGY: PLAG PHYRIC BASALT;
Piece No. : PCE 1 (0-8), 2 (10-22), 3 (24-26), 4A (28-37),
4B (37-56), 4C (56-73), 5 (74-84), 6A (86-99),
6B (98-110), 6C (110-119), 6D (117-135);
Texture : PHYRIC, MEDIUM GRAINED, DIABASE;
Vesicles : Size(mm): Percent: 2-4
Location: Filling: CALCITE,SMEC
Structure : CARB VEINS UP TO 3 MM SIMILAR TO VEINS FILLED WITH
BIAXIAL CARB IN CORE 50;
Alteration : SLIGHTLY
PCES 1-4C +BOUNDRY BETWEEN PCE 6A AND PCE 6B;
FRESH
ALL OTHER SECTIONS;
Comments : 85-135CM IS 1/2 OF A CONTINUOUS PIECE TOO LARGE FOR
END OF CORE SECTION - REMAINDER IN SECTION 4;
Vesicles : Size(mm): Percent: 0-5
WHERE CORE IS WEATHERED MANY OF THE VESICLES LACK
FILLINGS OR ARE PARTIALLY FILLED WITH CALCITE;
Phenocrysts: PLAGIOCLASE ( 5-10%)
Size(mm): 2-3
Replacement: CALCITE
FOUND IN AMYGDULES AND SOME VESICLES;
SMECTITE
FOUND IN AMYGDULES;
CARBONATE
FOUND IN VEINS;
Leg : 58 Top/Bottom Interval(mm): 0/ 250 Analyst: Dick, H.
Hole: 443 Sample Midpoint (m) : 482.25
Core: 52 Top of Core Depth (m) : 477.50
Sect: 4 Top of Section Depth(m): 482.00
LITHOLOGY: PLAG PHYRIC DIABASE;
Piece No. : PCE 1 (1-25);
Texture : DIABASE, MEDIUM GRAINED, PHYRIC;
Structure : CALCITE VEIN AT 0CM;
Vesicles : Size(mm): Percent: 1-2
Location: Filling: SMEC,CARB
AMYGDULES;
Alteration : SLIGHTLY
INTERVAL 0-4CM;
FRESH
REMAINING INTERVAL;
Comments : MEDIUM GREY COLORED BASALT;
Phenocrysts: PLAGIOCLASE ( 5%)
Size(mm): 2
Replacement: CALCITE
FOUND IN VEIN AT 0CM;
SMECTITE
CARBONATE
BOTH FOUND FILLING AMYGDULES;
Leg : 58 Top/Bottom Interval(mm): 0/1500 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 483.50
Core: 53 Top of Core Depth (m) : 482.00
Sect: 1 Top of Section Depth(m): 482.00
LITHOLOGY: PLAG PHYRIC BASALT;
Piece No. : PCE 1 (1-13), 2 (15-19), 3 (21-25), 4A (27-34),
4B (34-40), 5 (42-45), 6 (48-63), 7 (64-67),
8A (70-79), 8B (80-95), 8C (93-99), 8D (98-106),
9A (107-115), 9B (115-126), 9C (125-133),
9D (132-135), 9E (134-142), 9F (141-147),
9G (147-149);
Texture : PHYRIC, MEDIUM GRAINED, PCE 2 IS A CHILL ZONE OF
NEXT LAVA FLOW;
Structure : VEINS FILLED BY CALCITE;
Alteration : FRESH
PCES 1+2+3;
SLIGHTLY
ALL OTHER PCES, ALTERATION CLOSE TO CALCITE VEIN,
ALTERATION TO IRON OXIDES;
Comments : BASALT IS DARK GREY COLOR, 0-14CM BASALT IDENTICAL
TO CORE 52 SECTIONS 3+4;
Phenocrysts: PLAGIOCLASE (10-15%)
Size(mm): 4
Replacement: CALCITE
FOUND IN VEINS;
Leg : 58 Top/Bottom Interval(mm): 0/1500 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 485.00
Core: 53 Top of Core Depth (m) : 482.00
Sect: 2 Top of Section Depth(m): 483.50
LITHOLOGY: PLAG PHYRIC BASALT;
Piece No. : PCE 1A (1-6), 1B (6-11), 1C (11-36), 1D (36-46),
1E (46-53), 1F (53-60), 1G (60-70), 1H (70-92),
1I (92-100), 1J (98-111), 1K (111-120), 2 (121-125),
3A (127-140), 3B (142-148);
Texture : PHYRIC, MEDIUM GRAINED;
Structure : PCES 1F+1H CONTAIN A CALCITE FILLED VEIN WITH A
THICKNESS OF 3-5MM;
Alteration : SLIGHTLY
INTERVAL 0-50CM;
MOD
INTERVAL 50-150CM, OXIDATION IS MODERATE,ALTERATIO
CONSISTS OF AN OXIDATION OF ZONES CLOSE BY CALCITE
VEINS TO FE OXIDE;
Comments : BASALT IS DK GREY (BROWNISH) COLOR,BASALT IDENTICAL
TO CORE 53 SECTION 1 (14-150CM);
Phenocrysts: PLAGIOCLASE ( 10%)
Replacement: CALCITE
FOUND IN VEINS;
Leg : 58 Top/Bottom Interval(mm): 0/1370 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 486.37
Core: 53 Top of Core Depth (m) : 482.00
Sect: 3 Top of Section Depth(m): 485.00
LITHOLOGY: PLAG PHYRIC BASALT;
Piece No. : PCE 1 (1-9), 2 (11-19), 3 (21-27), 4A (29-35),
4B (35-49), 5A (51-70), 5B (70-87), 5C (88-96),
5D (97-101), 5E (101-107), 6A (110-125),
6B (125-136);
Texture : PHYRIC, MEDIUM GRAINED, PCE 3 IS A CHILL ZONE OF
NEXT LAVA FLOW;
Alteration : MOD
PCES 1+2+4A+4B;
SLIGHTLY
ALL OTHER PCES;
Comments : INTERVAL 0-20 IS DARK BROWNISH-GREY COLOR AND IS
IDENTICAL TO BASALT IN CORE 53 SECTION 2 BUT WITH
MORE OXIDES - IT REPRESENTS THE BASE OF THE LAVA
FLOW;
INTERVAL 20-27CM IS THE CHILL ZONE OF THE NEXT LAVA
FLOW;
INTERVAL 27-147CM IS AGAIN SIMILAR TO CORE 53
SECTION 2, 28-47CM IS A DARK BROWNISH GREY COLOR AND
CONTAINS MODERATE AMOUNTS OF OXIDE;
INTERVAL 47-147CM IS A DARK GREY COLOR;
Phenocrysts: PLAGIOCLASE ( 10%)
Leg : 58 Top/Bottom Interval(mm): 0/ 80 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 491.58
Core: 54 Top of Core Depth (m) : 491.50
Sect: 1 Top of Section Depth(m): 491.50
LITHOLOGY: PLAG PHYRIC BASALT;
Piece No. : PCE 1 (2-8);
Texture : PHYRIC, FINE-GRAINED;
Alteration : SLIGHTLY;
Comments : DARK GREY COLOR, BOTTOM CHILL ZONE OF BASE OF CORE
53 SECTION 3;
Leg : 58 Top/Bottom Interval(mm): 80/ 160 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 491.66
Core: 54 Top of Core Depth (m) : 491.50
Sect: 1 Top of Section Depth(m): 491.58
LITHOLOGY: PLAG GLOMEROPHYRIC BASALT;
Piece No. : PCE 2 (9-16);
Texture : GLOMEROPHYRIC, MEDIUM GRAINED;
Alteration : FRESH;
Comments : DARK GREY COLOR;
Phenocrysts: PLAGIOCLASE ( 10%)
Size(mm): 2-4
GLOMEROPHENOCRYSTS;
Leg : 58 Top/Bottom Interval(mm): 160/1000 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 492.50
Core: 54 Top of Core Depth (m) : 491.50
Sect: 1 Top of Section Depth(m): 491.66
LITHOLOGY: PLAG GLOMEROPHYRIC BASALT;
Piece No. : PCE 3 (17-23), 4A (25-40), 4B (40-56), 4C (56-65),
4D (65-69), 4E (70-76), 4F (77-84), 5 (87-89),
6A (90-101);
Texture : GLOMEROPHYRIC, FINE GRAINED;
Structure : CALCITE VEIN 1-2CM;
Alteration : SLIGHTLY;
Comments : BASALT IS A DARK GREY COLOR,
OXIDATION CLOSE TO CALCITE VEIN;
Phenocrysts: PLAGIOCLASE
PHENOS AND GLOMEROPHENOS;
Replacement: CALCITE
FOUND IN VEIN;
Leg : 58 Top/Bottom Interval(mm): 1000/1330 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 492.83
Core: 54 Top of Core Depth (m) : 491.50
Sect: 1 Top of Section Depth(m): 492.50
LITHOLOGY: PLAG-CPX PHYRIC BASALT;
Piece No. : PCE 6B (101-113), 6C (113-120), 7 (122-133);
Texture : COARSER GRAINED;
Phenocrysts: PYROXENE ( 30%)
Size(mm): 0.5
PLAGIOCLASE (10-15%)
Size(mm): TO 5
Leg : 58 Top/Bottom Interval(mm): 0/ 600 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 493.60
Core: 54 Top of Core Depth (m) : 491.50
Sect: 2 Top of Section Depth(m): 493.00
LITHOLOGY: PLAG PHYRIC BASALT;
Piece No. : PCE 1A (1-50), 1B (50-60);
Texture : PHYRIC, GLOMEROPHYRIC, COARSE GRAINED;
Alteration : SLIGHTLY;
Comments : SAME AS SECTION 1;
Phenocrysts: PLAGIOCLASE (10-15%)
Size(mm): 5
PHENOS AND GLOMEROPHENOS;
PYROXENE ( 30%)
Size(mm): 0.5
Leg : 58 Top/Bottom Interval(mm): 600/1430 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 494.43
Core: 54 Top of Core Depth (m) : 491.50
Sect: 2 Top of Section Depth(m): 493.60
LITHOLOGY: PLAG PHYRIC BASALT;
Piece No. : PCE 1C (59-71), 1D (71-77), 1E (77-119),
1F (119-134), 1G (133-143);
Texture : PHYRIC, GLOMEROPHYRIC, MEDIUM GRAINED;
Structure : CALCITE VEINS;
Alteration : SLIGHTLY;
Comments : BASALT IS DARK GREY COLOR, SLIGHTLY ALTERED -
OXIDIZED CLOSE TO CALCITE VEINS 1-2CM;
Phenocrysts: PLAGIOCLASE ( 20%)
Size(mm): 3
PHENOS + GLOMEROPHENOS;
Leg : 58 Top/Bottom Interval(mm): 0/1420 Analyst: Marsh, N.
Hole: 443 Sample Midpoint (m) : 495.92
Core: 54 Top of Core Depth (m) : 491.50
Sect: 3 Top of Section Depth(m): 494.50
LITHOLOGY: PLAG-PYX PHYRIC BASALT;
Piece No. : PCE 1A (1-12), 1B (13-33), 1C (33-46), 1D (46-60),
1E (59-81), 1F (82-125), 1G (85-142);
Texture : PHYRIC, MEDIUM GRAINED;
Structure : THIN WHITE CARBONATE-FILLED VEINS ARE COMMON 0.5MM
ACROSS, OLD AMYGDULE FILLED BY LIGHT OLIVE GREEN
CLAY;
Alteration : SLIGHTLY
BROWN ALTERATION ZONE WITH A GREENISH TINGE 1-1.5
CM ACROSS IS ADJACENT TO CARB VEINS;
Comments : AT 109CM A SMALL PIECE OF NATIVE COPPER 1MM ACROSS
FOUND IN A CARBONATE VEIN;
BASALT IS DARK GREY COLOR;
Phenocrysts: PLAGIOCLASE ( 10%)
Size(mm): 2-5
INTERVAL 25-56CM SOME PHENOS POSSIBLY
SAUSSURITIZED;
PYROXENE ( 5-10%)
Size(mm): 1-2
Replacement: CARBONATE
INFILLS VEINS;
CLAY
LIGHT OLIVE GREEN COLOR INFILLS AMYGDULE;
FERROUS OXIDE
INTERVAL 25-56CM INFILLS VEINS;
Leg : 58 Top/Bottom Interval(mm): 0/1460 Analyst: Marsh, N.
Hole: 443 Sample Midpoint (m) : 497.46
Core: 54 Top of Core Depth (m) : 491.50
Sect: 4 Top of Section Depth(m): 496.00
LITHOLOGY: PLAG-PYX PHYRIC BASALT;
Piece No. : PCE 1A (1-30), 1B (30-55), 1C (55-65), 1D (65-100),
1E (101-116), 1F (116-131), 1G (131-146);
Texture : PHYRIC, MEDIUM GRAINED;
Structure : CARBONATE VEINS 0.5-1MM WIDE WITH ALTERATION ZONES -
BROWN COLORATION 1-2CM WIDE, OLD AMYGDULE FILLED BY
LIGHT OLIVE GREEN CLAYS;
Alteration : SLIGHTLY
BROWN COLORATION ALTERATION ZONES SURROUND
CARBONATE VEINS;
Comments : BASALT IS DARK GRAY COLOR;
Phenocrysts: PLAGIOCLASE ( 10%)
Size(mm): 2-5
PYROXENE ( 10%)
Size(mm): 1-2
Replacement: CARBONATE
FOUND IN VEINS;
CLAYS
LIGHT OLIVE GREEN FILLING AMYGDULE;
Leg : 58 Top/Bottom Interval(mm): 0/ 900 Analyst: Marsh, N.
Hole: 443 Sample Midpoint (m) : 498.40
Core: 54 Top of Core Depth (m) : 491.50
Sect: 5 Top of Section Depth(m): 497.50
LITHOLOGY: PLAG-PYX PHYRIC BASALT;
Piece No. : PCE 1A (1-12), 1B (12-33), 1C (33-55), 1D (55-64),
1E (65-72), 2 (73-77), 3 (78-87), 4 (88-90);
Texture : PHYRIC, MEDIUM GRAINED;
Structure : CARBONATE VEIN 2MM WIDE;
Alteration : FRESH
INTERVAL 0-70;
SLIGHTLY
FROM INTERVAL 70-90 WEATHERING INCREASES;
ALTERATION ZONE 2CM WIDE SURROUNDS CARB VEINS;
Comments : BASALT IS A DARK GREY COLOR, SIMILAR TO PREVIOUS
SECTION;
Phenocrysts: PLAGIOCLASE ( 10%)
Size(mm): 2-5
PYROXENE ( 5-10%)
Size(mm): 1-2
Replacement: CARBONATE
FOUND IN VEINS;
Leg : 58 Top/Bottom Interval(mm): 920/1500 Analyst: Marsh, N.
Hole: 443 Sample Midpoint (m) : 499.00
Core: 54 Top of Core Depth (m) : 491.50
Sect: 5 Top of Section Depth(m): 498.42
LITHOLOGY: PLAG SPARSELY PHYRIC BASALT;
Piece No. : PCE 5 (92-96), PCE 6 (97-102), PCE 7A (103-120),
7B (113-123), 7C (124-128), 8 (130-132),
9 (133-136), 10 (137-150);
Texture : SPARSELY PHYRIC, SOME GLOMEROPHENOS, PCE 5 HAS A
FINE GRAINED GROUNDMASS WITH FEW PHENOS - POSSIBLY
IT IS A CHILLED MARGIN;
Structure : CARBONATE VEINS AND FRACTURES;
Alteration : SLIGHTLY
GRAINS OF BROWN ALTERATION MATERIAL POSSIBLY
FE OXIDES 0.5-1MM ACROSS ARE FOUND PARTICULARLY
NEAR CARB VEINS AND FRACTURES AND CONSTITUTE
APPROX 5 PERCENT;
Comments : BASALT IS A DARK GREY COLOR;
Vesicles : PCE 5 CONTAINS A FEW VESICLES;
Phenocrysts: PLAGIOCLASE ( 5-10%)
Size(mm): 2-5
SOME AS GLOMEROCRYSTS;
Replacement: CARBONATE
FOUND IN VEINS AND FRACTURES;
FERROUS OXIDE
POSSIBLY FOUND AS GRAINS NEAR VEINS AND FRACTURES;
Leg : 58 Top/Bottom Interval(mm): 0/1400 Analyst: Marsh, N.
Hole: 443 Sample Midpoint (m) : 500.40
Core: 54 Top of Core Depth (m) : 491.50
Sect: 6 Top of Section Depth(m): 499.00
LITHOLOGY: PLAG SPARSELY PHYRIC BASALT;
Piece No. : PCE 1A (1-21), 1B (21-37), 2A (40-50), 2B (46-52),
3 (53-58), 4A (60-67), 4B (65-68), 5A (70-77),
5B (74-77), 6 (80-86), 7 (88-97), 8 (100-107),
9 (110-117), 10 (118-121), 11 (123-130),
12 (133-140);
Texture : SPARSELY PHYRIC;
Structure : WHITE CARB LINED VEINS AND FRACTURES WITH WEATHERED
SURFACES ARE COMMON;
Alteration : FRESH
INTERVAL 10-40CM;
SLIGHTLY
ALL OTHER INTERVALS;
Comments : BASALT IS GRAY COLOR;
Vesicles : ODD VESICLE LINED WITH BROWN ALTERATION MATERIAL -
POSSIBLE FE OXIDE, OCCASIONAL ROUND VESICLE
INFILLED BY DARK GREY MATERIAL POSSIBLY CLAY;
Phenocrysts: PLAGIOCLASE ( 5-10%)
Size(mm): 2-5
SOME AS GLOMEROCRYSTS;
Replacement: FERROUS OXIDE
IDENTITY UNCERTAIN, GRAINS <1MM ACROSS, ALSO
LINING ODD VESICLE;
CLAYS
IDENTITY UNCERTAIN, DARK GREY COLOR INFILLING SOME
ROUND VESICLES;
Leg : 58 Top/Bottom Interval(mm): 0/1100 Analyst: Marsh, N.
Hole: 443 Sample Midpoint (m) : 501.60
Core: 54 Top of Core Depth (m) : 491.50
Sect: 7 Top of Section Depth(m): 500.50
LITHOLOGY: PLAG SPARSELY PHYRIC BASALT;
Piece No. : PCE 1A (1-22), 1B (23-46), 1C (46-55), 1D (56-70),
1E (70-82), 1F (79-87), 1G (87-95), 2 (100-109);
Texture : SPARSELY PHYRIC;
Structure : VEINS AND FRACTURES;
Alteration : FRESH
EXCEPT FOR LIGHT TO MOD WEATHERED ZONES
SURROUNDING VEINS AND FRACTURES;
Comments : BASALT IS DARK GREY COLOR;
Phenocrysts: PLAGIOCLASE ( 5-10%)
Size(mm): 2-5
PYROXENE
ODD PYX PHENO;
Leg : 58 Top/Bottom Interval(mm): 1100/1500 Analyst: Marsh, N.
Hole: 443 Sample Midpoint (m) : 502.00
Core: 54 Top of Core Depth (m) : 491.50
Sect: 7 Top of Section Depth(m): 501.60
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 3 (111-117), 4 (119-125), 5 (126-132),
6 (134-142), 7 (144-149);
Texture : APHYRIC, PCE 5 CONTAINS WEATHERED CONTACT ZONES
THAT ARE POSSIBLE CHILL MARGINS ABOVE AND BELOW
CARBONATE BAND (LITHIFIED SEDIMENT);
Structure : CARBONATE BANDS POSSIBLE LITHIFIED SEDIMENTS ARE
FOUND IN PCES 5+7;
Alteration : WEATHERING IN ZONES AROUND VESICLES PARTICULARLY
IN PCE 6 WITH A PIPE ZONE OF VESICLES;
Comments : BASALT IS A DARK GRAY COLOR;
Replacement: ZEOLITE
IDENTITY UNCERTAIN, LINES VESICLES ABOVE PCE 5,
CLEAR WELL-FORMED CRYSTALS;
CLAY
LIGHT BROWNISH GREY, FILLS OR LINES VESICLES BELOW
PCE 5;
Leg : 58 Top/Bottom Interval(mm): 0/ 470 Analyst: Marsh, N.
Hole: 443 Sample Midpoint (m) : 502.47
Core: 54 Top of Core Depth (m) : 491.50
Sect: 8 Top of Section Depth(m): 502.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 1 (0-3), 2 (5-8), 3 (10-15), 4 (16-22),
5 (25-32), 6 (33-37), 7 (40-41), 8 (43-46);
Texture : APHYRIC, FINE GRAINED, GLASS RINDS AND CHILL MARGINS
ON PCES 5+6+8;
Structure : PCES 4-5 CONTAIN CARBONATE LINED AND WEATHERED
FRACTURE SURFACES;
Alteration : MOD
WEATHERING GIVES GREENISH TINGE TO CLAY + CARB
LINING AND INFILLING OF SOME VESICLES;
Vesicles : Size(mm): <1 Percent: 4-8
TOTAL VESICLES INCLUDING ABOVE IS 10 PERCENT;
SOME CLAY + CARB LINING AND INFILLING;
Replacement: CARBONATE
FOUND IN FRACTURE SURFACES PCE 4+5 AND AS FILLING
AND LINING OF SOME VESICLES;
CLAY
FOUND AS LINING AND INFILLING FOR SOME VESICLES;
PALAGONITE
Leg : 58 Top/Bottom Interval(mm): 0/1490 Analyst: Dick, H.
Hole: 443 Sample Midpoint (m) : 502.49
Core: 55 Top of Core Depth (m) : 501.00
Sect: 1 Top of Section Depth(m): 501.00
LITHOLOGY: APHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCE 1 (1-8), 2 (10-15), 3 (17-21), 4 (23-26),
5 (28-32), 6 (34-37), 7 (40-44), 8A (45-53),
8B (53-58), 9A (61-72), 9B (72-79), 9C (78-90),
10A (91-106), 10B (106-111), 10C (111-118),
11 (120-125), 12 (125-128), 13 (130-138),
14 (140-149);
Texture : APHYRIC, PILLOW RIND PCE 1+2+3+5+10C, PILLOW MARGIN
PCE 11+14, CHILL ZONE PCE 10B, MICROPHENOCRYSTS-
INCIPIENT GROUNDMASS OF FELDSPAR IN APHANITIC
GROUNDMASS NEAR PILLOW RINDS, FINE GRAINED
MICROPHYRIC BASALT IN PILLOW INTERIORS 25 PERCENT
PLAG MICROPHENOS;
Structure : PILLOWS, CALCITE VEINS COMMON;
Alteration : MOD;
Comments : PCE 4 IS CARBONATE CEMENTED INTRAFORMATIONAL
LIMESTONE + PALAGONITE FRAGMENTS + POSSIBLE CHERT;
Vesicles : Size(mm): Percent: 1-5
Location: Filling: CARBONATE
CARB INFILLING OF VESICLES ABOUT 1%;
Phenocrysts: PLAGIOCLASE
MICROPHENOS 25 PERCENT OF PILLOW INTERIORS;
Replacement: CALCITE
FOUND IN VEINS;
CARBONATE
INFILLING FOR 1 PERCENT OF VESICLES;
Leg : 58 Top/Bottom Interval(mm): 0/1480 Analyst: Dick, H.
Hole: 443 Sample Midpoint (m) : 503.98
Core: 55 Top of Core Depth (m) : 501.00
Sect: 2 Top of Section Depth(m): 502.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 1 (2-7), 2A (10-19), 2B (19-24), 2C (24-30),
3 (31-37), 4A (38-44), 4B (45-50), 4C (50-55),
5 (57-68), 6 (70-75), 7 (77-81), 8 (83-87),
9 (90-94), 10A (95-100), 10B (100-108),
11 (109-113), 12 (115-125) , 13 (126-130),
14 (133-136), 15 (138-144), 16 (145-148);
Texture : BASALT GENERALLY APHYRIC BUT SOME IS
GLOMEROPORPHYRITIC, PILLOW RINDS ARE COMMON;
Structure : CARBONATE VEINS UP TO 3MM THICK AND QUITE COMMON;
Alteration : MOD;
Comments : 76-82CM - CARBONATE CEMENTED INTRAFORMATIONAL
BRECCIA WITH BITS OF PALAGONITE AND POSSIBLY CHERT +
PIECES OF LIMESTONE;
Vesicles : Size(mm): Percent: 3-15
MOSTLY FINE, SOME COARSE VUGS UP TO 7MM, 115-124CM
PIPE VESICLES, PCE 1 MOST VESICULAR PIECE;
Phenocrysts: PLAGIOCLASE
Size(mm): 1-2
GLOMEROCRYSTS, SMALL LATHS, PCE 4+6+7+12;
28CM PIECE HAS STRINGS OF FELDSPAR LATHS;
Replacement: CARBONATE
FOUND IN VEINS AND AS BRECCIA CEMENT 76-82CM;
PALAGONITE
INTERVAL 76-82CM;
Leg : 58 Top/Bottom Interval(mm): 0/ 220 Analyst: Dick, H.
Hole: 443 Sample Midpoint (m) : 504.22
Core: 55 Top of Core Depth (m) : 501.00
Sect: 3 Top of Section Depth(m): 504.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 1 (2-8), 2 (10-15), 3 (17-22);
Texture : APHYRIC, VARIOLITIC, FINE GRAINED TO APHANITIC
PCE 2 IS MICROGLOMEROPHYRIC, SEVERAL CHILL ZONES;
Structure : PCE 2+3 PART OF PILLOW SEQUENCE, CALCITE FILLED
AMYGDULES 3 PERCENT MEASURING UP TO 6MM;
Alteration : MOD;
Vesicles : Size(mm): Percent: 3-5
FINE TO MEDIUM;
Phenocrysts: PLAGIOCLASE
PCE 2 - MICROGLOMEROCRYSTS;
Replacement: CALCITE
FILLS AMYGDULES;
Leg : 58 Top/Bottom Interval(mm): 0/1260 Analyst: Dick, H.
Hole: 443 Sample Midpoint (m) : 505.76
Core: 56 Top of Core Depth (m) : 504.50
Sect: 1 Top of Section Depth(m): 504.50
LITHOLOGY: SPHERULITIC BASALT;
Piece No. : PCE 1 (1-3), 2 (7-10), 3 (13-16), 4 (18-30),
5A (32-40), 5B (41-51), 6 (54-60), 7A (62-72),
7B (72-80), 8A (82-85), 8B (83-95), 8C (94-97),
8D (98-101), 8E (101-103), 8F (103-121),
8G (121-125);
Texture : SPHERULITIC, VARIOLITIC, PCE 8 GRADES FROM
VARIOLITIC BASALT INTO APHANITIC BASALT FILLED WITH
ACICULAR NEEDLES OF PLAG UP TO 2MM LONG;
Structure : CALCITE VEINS IN PCES 5B+8B;
Alteration : MOD
BROWN STAINED ZONES FOR 1CM AROUND CALCITE VEINS;
Vesicles : Size(mm): Percent: 3-5
VESICLES AND VUGS PARTIALLY FILLED BY CALCITE;
Groundmass : PLAGIOCLASE
ACICULAR NEEDLES UP TO 2MM LONG;
Replacement: CALCITE
FILLS VESICLES + VUGS + VEINS;
Leg : 58 Top/Bottom Interval(mm): 1260/1500 Analyst: Dick, H.
Hole: 443 Sample Midpoint (m) : 506.00
Core: 56 Top of Core Depth (m) : 504.50
Sect: 1 Top of Section Depth(m): 505.76
LITHOLOGY: GLOMEROPHENOCRYSTAL BASALT;
Piece No. : PCE 9 (126-130), 10 (133-140), 11 (143-149);
Texture : GLOMEROPHENOCRYSTAL;
Alteration : MOD;
Vesicles : Size(mm): Percent: 5
Phenocrysts: PLAGIOCLASE
Size(mm): 7
GLOMEROCRYSTS OF ACICULAR PLAG NEEDLES;
Leg : 58 Top/Bottom Interval(mm): 0/1500 Analyst: Dick, H.
Hole: 443 Sample Midpoint (m) : 507.50
Core: 56 Top of Core Depth (m) : 504.50
Sect: 2 Top of Section Depth(m): 506.00
LITHOLOGY: SPHERULITIC BASALT;
Piece No. : PCE 1 (1-9), 2A (11-15), 2B (14-21), 3 (23-30),
4A (32-38), 4B (38-43), 4C (43-49), 5A (51-60),
5B (61-66), 5C (65-70), 5D (70-76), 6 (78-82),
7 (85-92), 8 (95-108), 9 (109-117), 10 (120-127),
11 (128-134), 12 (136-143) , 13 (145-150);
Texture : SPHERULITIC, FINE-GRAINED, INTERVAL 77-150CM ROCK
GRADES FROM A FEW SPHERULITES - 5 PERCENT TO 30
PERCENT SPHERULITES AT BASE,APHANITIC GROUNDMASS;
Alteration : MOD
INTERVALS: 0-20CM + 77-95CM + 122-130CM +
148-150CM;
SLIGHT
INTERVALS: 20-77 + 95-122 + 130-148;
Comments : BREAKS IN SECTION (NOT CHILL ZONES) AT 23CM + 77CM;
Vesicles : Size(mm): Percent: 2-10
A FEW VUGS;
Groundmass : PLAGIOCLASE
Size(mm): 2
RADIATING ACICULAR NEEDLES IN CLUSTERS GIVE ROCK A
SPOTTED APPEARANCE;
Replacement: CALCITE
PRESENT ONLY IN SMALL AMOUNTS AS VESICLE FILLINGS
IN TOP ONE-THIRD OF CORE;
Leg : 58 Top/Bottom Interval(mm): 0/1420 Analyst: Dick, H.
Hole: 443 Sample Midpoint (m) : 508.92
Core: 56 Top of Core Depth (m) : 504.50
Sect: 3 Top of Section Depth(m): 507.50
LITHOLOGY: PLAG SPHERULITIC BASALT GRADING INTO PLAG;
MICROPHYRIC BASALT;
Piece No. : PCE 1 (1-7), 2 (9-16), 3 (17-22) , 4A (24-30),
4B (30-36), 5 (37-41), 6A (43-46), 6B (47-52),
6C (54-59), 7 (61-67), 8 (70-77), 9 (78-83),
10 (85-89), 11A (90-94), 11B (95-106),
12A (107-113), 12B (113-124), 12 (126-134),
14 (136-141);
Texture : SPHERULITIC GRADING TO MICROPHYRIC, APHANITIC
GROUNDMASS;
Structure : CALCITE VEINS;
Vesicles :
Location: Filling: CALCITE
CALCITE AMYGDULES COMMON FROM 125-142CM;
Alteration : SLIGHTLY TO MOD
FE OXIDE STAIN FOR 1-1.5CM ZONE AROUND CALCITE
VEINS;
Phenocrysts: PLAGIOCLASE
ACICULAR PLAG SPHERULITES AT TOP GRADING DOWNWARD
INTO RANDOMLY ORIENTED ACICULAR PLAG LATHS;
Replacement: CALCITE
FOUND IN VEINS AND AMYGDULES;
FERROUS OXIDE
FOUND AS A STAIN AROUND CALCITE VEINS;
Leg : 58 Top/Bottom Interval(mm): 0/ 800 Analyst: Dick, H.
Hole: 443 Sample Midpoint (m) : 509.80
Core: 56 Top of Core Depth (m) : 504.50
Sect: 4 Top of Section Depth(m): 509.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 1 (1-15), 2A (17-27), 2B (27-31) 3A (32-41),
3B (41-50), 3C (51-53), 4 (55-60), 5A (61-70),
5B (70-75), 6 (77-80);
Texture : APHYRIC;
Vesicles : AMYGDULES FORMED FROM WEATHERED VESICLES;
Structure : PCE 2 HAS A 3-4MM WIDE CALCITE VEIN WITH OPEN SPACE
AT ITS CENTER WITH FREE-GROWING XTLLINE CALCITE;
Alteration : SLIGHTLY TO MOD;
BOTH VEINS IN SAMPLE 2+5 HAVE A 1CM OXIDIZED ZONE
AT PERIPHERY OF CALCITE IN THE BASALT;
Vesicles : Size(mm): Percent: 2-7
DEPENDS ON DEGREE OF WEATHERING AND EXTENT OF
INFILLING TO FORM AMYGDULES;
Replacement: CALCITE
FOUND IN VEINS;
Leg : 58 Top/Bottom Interval(mm): 0/ 520 Analyst: Dick, H.
Hole: 443 Sample Midpoint (m) : 511.02
Core: 57 Top of Core Depth (m) : 510.50
Sect: 1 Top of Section Depth(m): 510.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 1A (1-15), 1B (15-24), 1C (24-32), 1D (32-43),
1E (43-52);
Texture : APHYRIC;
Structure : MASSIVE;
Alteration : MOD;
Comments : END OF MASSIVE BASALT UNIT FOUND IN CORE 56;
Vesicles : Size(mm): Percent: 0-10
AMOUNT OF VESICLES DEPENDS ON DEGREE OF
ALTERATION;
Leg : 58 Top/Bottom Interval(mm): 540/ 600 Analyst: Dick, H.
Hole: 443 Sample Midpoint (m) : 511.10
Core: 57 Top of Core Depth (m) : 510.50
Sect: 1 Top of Section Depth(m): 511.04
LITHOLOGY: SEDIMENT;
LIMESTONE;
Piece No. : PCE 2 (54-60);
Leg : 58 Top/Bottom Interval(mm): 610/1420 Analyst: Dick, H.
Hole: 443 Sample Midpoint (m) : 511.92
Core: 57 Top of Core Depth (m) : 510.50
Sect: 1 Top of Section Depth(m): 511.11
LITHOLOGY: APHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCE 3 (62-65), 4 (67-70), 5 (72-79), 6 (82-88),
7 (90-94), 8 (95-99), 9A (102-113), 9B (113-121),
9C (120-125), 9D (125-138), 9E (138-142);
Texture : APHYRIC PILLOW BASALT GRADES FROM MASSIVE GLASS
ZONES UP TO 4CM THICK INTO VARIOLITIC BASALT AND
THEN INTO APHYRIC PILLOW BASALTS FILLED WITH PLAG
SPHERULITES AND RANDOM MICROPHENOCRYSTS;
Structure : VEINS;
Alteration : SLIGHTLY TO MOD
OXIDIZED ZONES AROUND VEINS;
Vesicles : Size(mm): Percent: 1-2
Replacement: CALCITE
FREE GROWING CRYSTALS IN PCE 9D;
Leg : 58 Top/Bottom Interval(mm): 0/1500 Analyst: Dick, H.
Hole: 443 Sample Midpoint (m) : 513.50
Core: 57 Top of Core Depth (m) : 510.50
Sect: 2 Top of Section Depth(m): 512.00
LITHOLOGY: APHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCE 1 (1-11), 2A (13-17), 2B (17-23), 3 (25-31),
4A (33-38), 4B (38-43), 5 (44-48), 6 (51-59),
7 (61-65), 8 (67-73), 9 (75-80), 10 (82-85),
11 (87-91), 12 (93-100), 13A (102-107),
13B (108-114), 13C (114-117), 14 (120-128),
15 (130-137), 16 (140-143), 17 (145-150);
Texture : MASSIVE GLASS CHILL ZONES UP TO 7CM THICK - APHYRIC-
GRADING INTO VARIOLITIC GLASS INTO VARIOLITIC BASALT
INTO SPHERULITIC PLAG BASALT 10-42CM;
Structure : PILLOW BASALT, CARBONATE VEINS;
Vesicles :
Location: Filling: CARB
CARB-FILLED AMYGDULES COMMON;
Alteration : SLIGHTLY
5-35CM;
SLIGHTLY TO MOD
0-5CM + 35-75CM + 87-91CM + 110-115CM;
MOD
115-150CM;
LIGHTLY WEATHERED NEAR GLASS (WHICH IS FRESH) TO
MOD WEATHERED (ALTERED) ELSEWHERE PARTICULARLY
NEAR CARBONATE VEINS;
Comments : 78CM AND 95-100CM - LIMESTONE CEMENTED PILLOW RIND
BRECCIA - PALAGONITIZED MARGINS ON GLASS;
Replacement: CARBONATE
FOUND IN AMYGDULES + VEINS;
PALAGONITE
Minerals Replaced: GLASS
Leg : 58 Top/Bottom Interval(mm): 0/ 400 Analyst: Dick, H.
Hole: 443 Sample Midpoint (m) : 513.90
Core: 57 Top of Core Depth (m) : 510.50
Sect: 3 Top of Section Depth(m): 513.50
LITHOLOGY: APHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCE 1 (1-7), 2 (12-15), 3 (18-26), 4 (27-33),
5 (34-40);
Texture : APHYRIC PILLOW BASALT WITH THICK GLASS RINDS;
Alteration : MOD
PCES 2+4+5;
Vesicles : Size(mm): Percent: 0-7
Replacement: PALAGONITE
Minerals Replaced: GLASS
SOME PALAGONITIZATION OF GLASS;
Leg : 58 Top/Bottom Interval(mm): 0/ 240 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 520.24
Core: 58 Top of Core Depth (m) : 520.00
Sect: 1 Top of Section Depth(m): 520.00
LITHOLOGY: APHYRIC BASALT;
PILLOW LAVA;
Piece No. : PCE 1 (1-4), 2 (7-10), 3 (12-15), 4 (18-24);
Texture : APHYRIC PILLOW LAVA;
Structure : CALCITE VEINS WITH FE HYDROX;
Alteration : MOD TO EXTENSIVELY
PCE 1-3;
MOD TO EXTENSIVELY
PCE 4;
Comments : BASALT IS YELLOW-GREY COLOR;
Vesicles : Size(mm): <1 Percent: 1-2
SOME VESICLES UP TO 3MM;
Replacement: CALCITE
FOUND IN VEINS;
FERROUS HYDROX MINS
FOUND IN VEINS;
Leg : 58 Top/Bottom Interval(mm): 240/ 800 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 520.80
Core: 58 Top of Core Depth (m) : 520.00
Sect: 1 Top of Section Depth(m): 520.24
LITHOLOGY: APHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCE 5 (26-29), 6 (32-35), 7A (37-45), 7B (45-52),
7C (52-69), 7D (69-76);
Texture : APHYRIC;
Structure : CALCITE VEINS WITH FE HYDRX;
Alteration : EXTENSIVELY;
Comments : DENSE, YELLOW-GREY COLOR, INTERIOR PART OF THE SAME
FLOW;
Vesicles : Size(mm): <5 Percent: 1-2
Phenocrysts: PLAGIOCLASE ( 1-2%)
Size(mm): 5-7
70-80CM RARE SPHERULITES OF PLAG;
Replacement: CALCITE
FOUND IN VEINS;
FERROUS HYDROX MINS
FOUND IN VEINS;
Leg : 58 Top/Bottom Interval(mm): 800/1500 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 521.50
Core: 58 Top of Core Depth (m) : 520.00
Sect: 1 Top of Section Depth(m): 520.80
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 7E (77-89), 7F (85-103), 8A (106-114),
8B (115-120), 8C (120-124), 9 (127-135),
10A (138-144), 10B (145-149);
Texture : APHYRIC,FINE GRAINED;
Structure : CALCITE VEINS WITH FE HYDRX;
Alteration : EXTENSIVELY
80-100CM;
MOD TO EXTENSIVELY
100-150CM;
Comments : DARK GREY COLOR, INTERIOR PART OF THE SAME FLOW;
Vesicles : Size(mm): <3 Percent: <1
Phenocrysts: PLAGIOCLASE ( 1-2%)
Size(mm): 5-7
80-120CM RARE SPHERULITES;
Replacement: CALCITE
FOUND IN VEINS;
FERROUS HYDROX MINS
FOUND IN VEINS;
Leg : 58 Top/Bottom Interval(mm): 0/ 550 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 522.05
Core: 58 Top of Core Depth (m) : 520.00
Sect: 2 Top of Section Depth(m): 521.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 1A (1-7), 1B (8-13), 1C (15-18), 1D (19-25),
2 (27-34), 3 (37-41), 4A (43-47), 4B (48-54);
Texture : APHYRIC, FINE GRAINED;
Structure : CALCITE VEINS WITH FE HYDRX, 50-55CM CALC VEIN WITH
CHLORITE;
Alteration : SLIGHTLY TO MOD;
Comments : DARK GREY COLOR;
Vesicles : Size(mm): <1 Percent: 10-15
Groundmass : PLAGIOCLASE ( 1-2%)
50-55CM SPHERULITES UP TO 5MM;
Replacement: CALCITE
FERROUS HYDROX MINS
BOTH FOUND IN VEINS;
Leg : 58 Top/Bottom Interval(mm): 550/ 700 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 522.20
Core: 58 Top of Core Depth (m) : 520.00
Sect: 2 Top of Section Depth(m): 522.05
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 5 (56-60), 6 (62-70);
Texture : APHYRIC, CHILL ZONE OF NEXT LAVA FLOW - GLASS RIM
ABSENT;
Structure : VEIN WITH CALCITE + CHLORITE;
Alteration : SLIGHTLY TO MOD;
Comments : YELLOW-GREY COLOR, DENSE;
Vesicles : Size(mm): 1-2 Percent: 2-3
Groundmass : PLAGIOCLASE ( 1-2%)
SPHERULITES UP TO 5MM;
Leg : 58 Top/Bottom Interval(mm): 700/1400 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 522.90
Core: 58 Top of Core Depth (m) : 520.00
Sect: 2 Top of Section Depth(m): 522.20
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 7A (72-77), 7B (78-80), 8A (82-90), 8B (90-95),
8C (95-97), 8D (97-103), 8E (105-108), 8F (105-111),
9 (113-118), 10A (121-127), 10B (127-133),
10C (133-139);
Texture : APHYRIC, FINE GRAINED;
Structure : 50-120CM VEIN WITH CALCITE + CHLORITE;
Alteration : SLIGHTLY;
Comments : DARK GREY COLOR;
Vesicles : Size(mm): <1 Percent: 10-15
Location: Filling: CALCITE,CLAY
PARTLY FILLED;
Groundmass : PLAGIOCLASE ( 1-2%)
70-120CM SPHERULITES UP TO 5MM;
Replacement: CALCITE
FOUND IN VEINS AND VESICLES;
CLAY
FOUND IN VESICLES;
CHLORITE
FOUND IN VEIN;
Leg : 58 Top/Bottom Interval(mm): 0/1200 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 524.20
Core: 58 Top of Core Depth (m) : 520.00
Sect: 3 Top of Section Depth(m): 523.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 1A (0-12);
Texture : APHYRIC, FINE-GRAINED;
Alteration : SLIGHTLY;
Comments : DARK GREY COLOR;
Vesicles : Size(mm): <1 Percent: 10
Location: Filling: CALCITE,CLAY
Replacement: CALCITE
CLAY
BOTH FOUND IN VESICLES;
Leg : 58 Top/Bottom Interval(mm): 120/1050 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 524.05
Core: 58 Top of Core Depth (m) : 520.00
Sect: 3 Top of Section Depth(m): 523.12
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 1B (12-39), 1C (40-80), 1D (81-89), 2 (92-98);
Texture : APHYRIC, MED TO COARSE GRAINED;
Structure : CALCITE VEIN 70-90CM;
Alteration : FRESH
ALTERATION OCCURS CLOSE TO CALCITE VEIN;
Comments : DARK GREY COLOR, DENSE;
Groundmass : PLAGIOCLASE
Size(mm): 4
Leg : 58 Top/Bottom Interval(mm): 1050/1430 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 524.43
Core: 58 Top of Core Depth (m) : 520.00
Sect: 3 Top of Section Depth(m): 524.05
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 3 (100-115), 4A (118-130), 4B (132-143);
Texture : APHYRIC, FINE GRAINED;
Alteration : SLIGHTLY;
Comments : DARK GREY COLOR;
Vesicles : Size(mm): <1 Percent: 10
Location: Filling: CALCITE,CLAY
Replacement: CALCITE
CLAY
BOTH FOUND IN VESICLES;
Leg : 58 Top/Bottom Interval(mm): 0/1250 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 525.75
Core: 58 Top of Core Depth (m) : 520.00
Sect: 4 Top of Section Depth(m): 524.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 1A (1-12), 1B (13-18), 1C (19-24), 1D (25-41),
1E (42-45), 1F (46-52), 1G (53-56), 2 (57-77),
3 (82-86), 4A (90-94), 4B (94-108), 4C (109-125);
Texture : APHYRIC, FINE GRAINED;
Alteration : FRESH
0-45CM, DARK GREY;
SLIGHTLY TO MOD
45-125CM, GREENISH GREY;
Vesicles : Size(mm): Percent: 10
SAMPLE 1C HAS 1 PIPE VESICLE 2X20MM, 45-125CM
VESICLES PARTLY ARE FILLED WITH CLAY;
Replacement: CLAY
FOUND FILLING SOME VESICLES;
Leg : 58 Top/Bottom Interval(mm): 1250/1500 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 526.00
Core: 58 Top of Core Depth (m) : 520.00
Sect: 4 Top of Section Depth(m): 525.75
LITHOLOGY: PLAG SPARSELY PHYRIC BASALT;
PILLOW LAVA;
Piece No. : PCE 4D (126-131), 5 (133-136), 6 (137-142),
7 (144-149);
Texture : PILLOW LAVA WITH GLASS RIM, SPARSELY PHYRIC;
Alteration : SLIGHTLY TO MOD;
Comments : BASALT IS DENSE, COLOR IS GREENISH-GREY CLOSE TO RIM
AND 3CM IN FROM RIM COLOR IS GREY;
Phenocrysts: PLAGIOCLASE
VERY RARE;
Leg : 58 Top/Bottom Interval(mm): 0/ 100 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 526.10
Core: 58 Top of Core Depth (m) : 520.00
Sect: 5 Top of Section Depth(m): 526.00
LITHOLOGY: PLAG SPARSELY PHYRIC BASALT;
PILLOW LAVA;
Piece No. : PCE 1 (1-9);
Texture : PILLOW LAVA WITH GLASS RIM, SPARSELY PHYRIC;
Alteration : SLIGHTLY;
Comments : THE SAME PILLOW LAVA AT THE BASE OF SECTION 4, IT IS
THE UPPER PART OF THE FLOW;
Leg : 58 Top/Bottom Interval(mm): 100/ 950 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 526.95
Core: 58 Top of Core Depth (m) : 520.00
Sect: 5 Top of Section Depth(m): 526.10
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 2 (12-19), 3 (21-27), 4 (30-37), 5 (41-59),
6 (61-72), 7 (76-84), 8 (87-94);
Texture : APHYRIC, 45-95CM IS FINE-GRAINED;
Structure : CALCITE VEIN;
Alteration : SLIGHTLY
ALTERATION CLOSE TO CALCITE VEIN IS VERY SLIGHTLY;
Comments : BASALT IS DARK GREY COLOR AND 10-45CM IS DENSE;
10-95CM IS THE BOTTOM PART OF THE SAME LAVA FLOW;
Replacement: CALCITE
FOUND IN VEIN;
Leg : 58 Top/Bottom Interval(mm): 0/ 80 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 529.58
Core: 59 Top of Core Depth (m) : 529.50
Sect: 1 Top of Section Depth(m): 529.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 1 (1-7);
Texture : APHYRIC, TOP OF CHILL ZONE;
Alteration : SLIGHTLY TO MOD;
Comments : BASALT IS DENSE WITH A GRAY COLOR;
Vesicles : Size(mm): Percent: 1-3
Location: Filling:
Shape : OPEN
Leg : 58 Top/Bottom Interval(mm): 80/1440 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 530.94
Core: 59 Top of Core Depth (m) : 529.50
Sect: 1 Top of Section Depth(m): 529.58
LITHOLOGY: APHYRIC BASALT;
Leg : 58 Top/Bottom Interval(mm): 80/1440 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 530.94
Core: 59 Top of Core Depth (m) : 529.50
Sect: 1 Top of Section Depth(m): 529.58
LITHOLOGY: 28-41CM SEDIMENTARY CARBONATE;
Piece No. : PCE 2 (9-16), 3 (18-23), 4 (25-27), 5 (29-31),
6 (33-36), 7 (38-41), 8 (43-44), 9 (46-50),
10 (52-57), 11A (59-60), 11B (60-69), 11C (69-76),
11D (76-87), 11E (86-94), 11F (95-100),
11G (100-107), 11H (107-115), 11I (115-119),
11J (120-126), 11K (126-134), 11L (135-143);
Texture : APHYRIC;
Structure : CALCITE VEIN WITH SURROUNDING ZONE OF SLIGHT
ALTERATION;
Alteration : SLIGHTLY TO MOD
ALTERATION IS WEATHERING;
Comments : BASALT IS DENSE, BROWN-GREY COLOR;
Replacement: CARBONATE
SEDIMENTARY;
CALCITE
FOUND IN VEIN;
Leg : 58 Top/Bottom Interval(mm): 0/ 220 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 531.22
Core: 59 Top of Core Depth (m) : 529.50
Sect: 2 Top of Section Depth(m): 531.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 1A (1-11), 1B (10-21);
Texture : APHYRIC;
Alteration : SLIGHTLY;
Comments : BASALT SIMILAR TO THAT AT THE BOTTOM OF SECTION 1;
Leg : 58 Top/Bottom Interval(mm): 220/ 550 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 531.55
Core: 59 Top of Core Depth (m) : 529.50
Sect: 2 Top of Section Depth(m): 531.22
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 2A (24-30), 2B (30-39), 3A (41-47), 3B (48-55);
Texture : APHYRIC, CHILL ZONE OF THE SAME BASALT FLOW, IN THE
BOTTOM OF FLOW IS GLASS (PCE 3B);
Alteration : SLIGHTLY TO MOD;
Comments : BASALT IS DENSE, GREENISH-GREY COLOR;
Vesicles : Size(mm): <1 Percent: 1-2
Location: Filling: CALCITE
Replacement: CALCITE
FILLS VESICLES;
Leg : 58 Top/Bottom Interval(mm): 550/ 670 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 531.67
Core: 59 Top of Core Depth (m) : 529.50
Sect: 2 Top of Section Depth(m): 531.55
LITHOLOGY: PILLOW LAVA ZONE;
Piece No. : PCE 4 (57-61), 5 (63-67);
Texture : PILLOW LAVA;
Alteration : SLIGHTLY TO MOD;
Leg : 58 Top/Bottom Interval(mm): 670/1500 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 532.50
Core: 59 Top of Core Depth (m) : 529.50
Sect: 2 Top of Section Depth(m): 531.67
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 6 (68-70), 7 (72-78), 8A (80-85), 8B (82-88),
8C (88-91), 8D (92-97), 8E (97-101), 8F (112-114),
8G (115-119), 8H (110-112), 9A (113-118),
9B (117-122), 10 (125-127), 11 (130-132),
12 (135-143), 13 (147-149);
Texture : APHYRIC BASALT FLOW, VERY FINE GRAINED;
Alteration : SLIGHTLY TO MOD
67-80CM;
SLIGHTLY
80-150CM;
Comments : BASALT IS DARK GREY COLOR;
55-150CM IS NEXT LAVA FLOW;
Leg : 58 Top/Bottom Interval(mm): 0/ 200 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 532.70
Core: 59 Top of Core Depth (m) : 529.50
Sect: 3 Top of Section Depth(m): 532.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 1A (1-6), 1B (6-17), 1C (17-19);
Texture : APHYRIC, VERY FINE GRAINED;
Alteration : SLIGHTLY;
Comments : BASALT IS DARK GREY COLOR, BASALT IS SIMILAR TO THAT
AT THE BASE OF SECTION 2;
Leg : 58 Top/Bottom Interval(mm): 200/ 760 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 533.26
Core: 59 Top of Core Depth (m) : 529.50
Sect: 3 Top of Section Depth(m): 532.70
LITHOLOGY: PHYRIC BASALT;
Piece No. : PCE 2A (21-30), 2B (30-42), 2C (42-45), 2D (45-49),
2E (49-55), 2F (54-57), 3A (60-67), 3B (67-71),
4 (73-76);
Texture : PHYRIC;
Structure : CALCITE VEIN;
Alteration : SLIGHTLY
ALTERATION CLOSE TO CALCITE VEIN IS LOW;
Comments : BASALT IS DENSE, YELLOW-GREY COLOR,
SAME LAVA FLOW;
Leg : 58 Top/Bottom Interval(mm): 760/ 900 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 533.40
Core: 59 Top of Core Depth (m) : 529.50
Sect: 3 Top of Section Depth(m): 533.26
LITHOLOGY: CHILL MARGIN;
Piece No. : PCE 5 (78-81), 6 (84-90);
Texture : CHILL MARGIN TOP OF LAVA FLOW WITH RIMS OF GLASS;
Alteration : SLIGHTLY TO MOD;
Leg : 58 Top/Bottom Interval(mm): 900/1500 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 534.00
Core: 59 Top of Core Depth (m) : 529.50
Sect: 3 Top of Section Depth(m): 533.40
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 7 (93-95), 8A (97-111), 8B (111-120),
8C (121-132), 8D (133-141), 9 (144-147);
Texture : APHYRIC, FINE GRAINED;
Alteration : MOD;
Comments : BASALT IS GREENISH-GREY COLOR;
76-150CM IS NEXT LAVA FLOW;
Vesicles : Size(mm): <2 Percent: 10-15
Location: Filling: CALCITE
Replacement: CALCITE
FILLS VESICLES;
Leg : 58 Top/Bottom Interval(mm): 0/1500 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 535.50
Core: 59 Top of Core Depth (m) : 529.50
Sect: 4 Top of Section Depth(m): 534.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 1A (1-6), 1B (7-10), 1C (11-14), 1D (15-19),
1E (20-23), 2A (26-35), 2B (35-39), 3 (41-45),
4A (47-53), 4B (54-61), 5A (63-73), 5B (73-76),
5C (77-94), 5D (95-113), 5E (114-122), 6A (125-131),
6B (131-149);
Texture : APHYRIC, FINE-GRAINED;
Alteration : MOD
0-123CM;
SLIGHTLY
123-150CM;
Vesicles : Size(mm): <3 Percent: 10-15
Location: Filling: CALCITE,CLAY
Replacement: CALCITE
CLAY
BOTH FILL VESICLES;
Leg : 58 Top/Bottom Interval(mm): 0/1500 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 537.00
Core: 59 Top of Core Depth (m) : 529.50
Sect: 5 Top of Section Depth(m): 535.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 1 (1-6), 2 (8-15), 3 (17-21), 4 (23-28),
5 (32-35), 6A (37-42), 6B (43-47), 6C (48-51),
6D (52-57), 7 (59-62), 8A (64-72), 8B (72-74),
9 (75-79), 10 (82-85), 11A (86-99), 11B (100-103),
12 (105-107), 13A (109-119), 13B (120-124),
14 (126-129), 15 (132-140), 16 (143-148);
Texture : APHYRIC, FINE GRAINED,
108-150CM IS CHILL ZONE OF THIS FLOW;
Alteration : MOD
O-104CM;
SLIGHTLY
104-150CM;
Comments : % 108-150CM BASALT IS DENSE;
Vesicles : Size(mm): <2 Percent: 15
Location: Filling: CLAY
0-108CM;
Size(mm): Percent: 2
108-150CM;
Replacement: CLAY
FILLS VESICLES 0-108CM;
Leg : 58 Top/Bottom Interval(mm): 0/1500 Analyst: Marsh, N.
Hole: 443 Sample Midpoint (m) : 540.50
Core: 60 Top of Core Depth (m) : 539.00
Sect: 1 Top of Section Depth(m): 539.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 1A (1-25), 1B (25-35), 1C (35-52), 1D (53-54),
1E (55-60), 2A (62-63), 2B (63-64), 3A (65-70),
3B (70-77), 4A (80-83), 4B (83-91), 4C (92-104),
4D (104-115), 4E (111-122), 4F (122-127),
4G (127-132), 4H (132-134), 5A (137-138),
5B (140-143), 6 (145-150);
Texture : APHYRIC, MEDIUM GRAINED (APPROX 0.5-1.0MM);
Vesicles : Size(mm): 1-10 Percent:
Location: Filling: TALC,CHLORITE,
Location: Filling: SMEC,PYRITE
AMYGDULES APPROX 15-30% FILLED BY TALC/
CHLORITE/SMEC TYPE MINERAL AND PYRITE GRAINS,
SOME AMYGDULES FILLED BY WHITE
CRYSTALLINE OCTAHEDRAL SHAPED MINERAL AND WHITE
CYLINDRICAL WIRE-LIKE MINERAL POSSIBLY ZEOLITES;
Structure : FRACTURES AT 26CM BETWEEN PCES 1A+1B AND AT 110CM
BETWEEN PCES 1D+1E ARE LINED BY TALC/SMEC TYPE
MINERAL AND PYRITE GRAINS;
Alteration : SLIGHTLY;
Groundmass : PLAGIOCLASE
PYROXENE
Replacement: TALC
FOUND IN AMYGDULES AND LINING FRACTURES;
SMECTITE
FOUND IN AMYGDULES AND LINING FRACTURES;
CHLORITE
FOUND FILLING AMYGDULES;
PYRITE
FOUND FILLING AMYGDULES AND LINING FRACTURES;
ZEOLITE
POSSIBLY FOUND IN SOME AMYGDULES;
Leg : 58 Top/Bottom Interval(mm): 0/1430 Analyst: Marsh, N.
Hole: 443 Sample Midpoint (m) : 541.93
Core: 60 Top of Core Depth (m) : 539.00
Sect: 2 Top of Section Depth(m): 540.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 1A (1-18), 1B (18-22), 1C (20-28), 1D (28-32),
1E (32-42), 1F (36-40), 1G (41-71), 1H (71-92),
1I (91-108), 1J (108-142);
Texture : APHYRIC, MEDIUM GRAINED (APPROX 0.5-1.0MM);
Vesicles :
Location: Filling: TALC,CHLOR,SMEC
AT 0-42CM 25% AMYGDULES FILLED BY GREEN-GREY OR
WHITE TALC/CHLORITE/SMEC MATERIAL,FROM 42-150 CM
CONTAINS VIRTUALLY NO AMYGDULES EXCEPT AROUND
VEIN AT 46CM, 0-42CM SIMILAR TO PREVIOUS CORE
EXCEPT NO PYRITE SEEN IN AMYGDULES;
Structure : SIMILAR MATERIAL LINES VEIN BETWEEN 33 AND 53CM PLUS
SOME FINE PYRITE;
Alteration : FRESH;
Comments : BASALT IS GREY COLOR;
Groundmass : PYROXENE
PLAGIOCLASE
Replacement: TALC
FOUND IN AMYGDULES AND LINES VEIN;
SMECTITE
FOUND IN AMYGDULES AND LINES VEIN;
CHLORITE
FOUND IN AMYGDULES AND LINES VEIN;
PYRITE
LINES VEIN;
Leg : 58 Top/Bottom Interval(mm): 0/1200 Analyst: Marsh, N.
Hole: 443 Sample Midpoint (m) : 543.20
Core: 60 Top of Core Depth (m) : 539.00
Sect: 3 Top of Section Depth(m): 542.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 1A (1-7), 1B (7-73), 1C (68-78), 1D (78-119);
Texture : APHYRIC, MEDIUM GRAINED;
Structure : VEIN BETWEEN 1B AND 1C (66-70CM) LINED BY SMEC/TALC/
CHLORITE MATERIAL;
Vesicles : Size(mm): 2 Percent: 1
BELOW 70CM A SMALL NUMBER OF AMYGDULES LINED BY
WHITE OR GREENISH-WHITE MATERIAL, A FEW ODD GRAINS
OF PYRITE (VERY FINE) SEEN IN SOME AMYGDULES;
Alteration : SLIGHTLY;
Comments : BASALT IS GREY COLOR;
0-70CM SIMILAR TO LOWER PART OF PREVIOUS SECTION;
Groundmass : PLAGIOCLASE
PYROXENE
Replacement: SMECTITE
FOUND LINING VEIN;
TALC
FOUND LINING VEIN;
CHLORITE
FOUND LINING VEIN;
PYRITE
VERY FINE GRAINS SEEN IN SOME AMYGDULES;
BELOW 70CM A SMALL NUMBER OF AMYGDULES LINED BY
A WHITE OR GREENISH WHITE MATERIAL;
Leg : 58 Top/Bottom Interval(mm): 0/1320 Analyst: Marsh, N.
Hole: 443 Sample Midpoint (m) : 544.82
Core: 60 Top of Core Depth (m) : 539.00
Sect: 4 Top of Section Depth(m): 543.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 1 (0-34), 2 (36-39), 3A (41-45), 3B (45-54),
3C (55-62), 3D (60-64), 3E (64-104), 3F (105-111),
3G (108-120), 3H (122-131);
Texture : APHYRIC, MEDIUM GRAINED (0.5-2.0MM), DIABASIC
TEXTURE;
Vesicles : Size(mm): 0.05-2 Percent: 1
AMYGDULES FILLED BY WHITE OR GREENISH-WHITE
MATERIAL, SIMILAR TO PREVIOUS CORE;
Structure : FRACTURE AT 57-61CM LINED
BY GREENISH WHITE SMEC/TALC/CHLORITE MATERIAL,
FRACTURE AT 103-113CM LINED BY SIMILAR MATERIAL
DISCOLORED BY OTHER ALTERATION PRODUCTS;
Alteration : SLIGHTLY;
Comments : GASALT IS GREY COLOR;
Groundmass : PLAGIOCLASE
PYROXENE
Replacement: SMECTITE
LINES FRACTURES;
TALC
LINES FRACTURES;
CHLORITE
LINES FRACTURES;
WHITE OR GREENISH WHITE MATERIAL FILLS AMYGDULES;
Leg : 58 Top/Bottom Interval(mm): 0/1470 Analyst: Marsh, N.
Hole: 443 Sample Midpoint (m) : 546.47
Core: 60 Top of Core Depth (m) : 539.00
Sect: 5 Top of Section Depth(m): 545.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 1 (1-38), 2 (39-55), 3 (56-67), 4 (67-72),
5 (72-90), 6 (90-92), 7 (92-108), 8 (108-119),
9 (120-147);
Texture : APHYRIC, MEDIUM GRAINED (0.5-2MM) DIABASIC TEXTURE;
Structure : SCATTERED AMYGDULES FILLED BY WHITE MATERIAL,
GENERALLY <1MM ACROSS ABOUT 1-3 PERCENT;
VEIN ALONG WHICH ROCK FRACTURED AT 88 CM LINED BY
WHITE PLATEY MATERIAL AND HONEY BROWN ACICULAR
CRYSTALS (RARE);
Alteration : SLIGHTLY;
Comments : GREY COLOR;
Replacement: OTHER
WHITE MINERAL IN AMYGDULES AND ALONG VEINS;
Leg : 58 Top/Bottom Interval(mm): 0/1430 Analyst: Marsh, N.
Hole: 443 Sample Midpoint (m) : 547.93
Core: 60 Top of Core Depth (m) : 539.00
Sect: 6 Top of Section Depth(m): 546.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 1A (1-11), 1B (12-31), 1C (32-51), 1D (51-69),
1E (70-90), 1F (90-106), 1G (106-125), 1H (125-142);
Texture : MEDIUM GRAINED (0.5-2MM), APHYRIC;
Structure : OCCASIONAL SMALL AMYGDULES <1MM ACROSS FILLED BY
WHITE MATERIAL;
Alteration : SLIGHTLY;
Comments : GREY COLOR, SIMILAR TO PREVIOUS SECTION;
Groundmass : PLAGIOCLASE
PYROXENE
Replacement: OTHER
WHITE MATERIAL FOUND IN AMYGDULES;
Leg : 58 Top/Bottom Interval(mm): 0/ 350 Analyst: Marsh, N.
Hole: 443 Sample Midpoint (m) : 548.35
Core: 60 Top of Core Depth (m) : 539.00
Sect: 7 Top of Section Depth(m): 548.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 1A (1-16), 1B (16-35);
Texture : APHYRIC, MEDIUM GRAINED (0.5-2MM);
Alteration : SLIGHTLY;
Comments : GREY COLOR;
Groundmass : PLAGIOCLASE
PYROXENE
Leg : 58 Top/Bottom Interval(mm): 0/1110 Analyst: Dick, H.
Hole: 443 Sample Midpoint (m) : 549.61
Core: 61 Top of Core Depth (m) : 548.50
Sect: 1 Top of Section Depth(m): 548.50
LITHOLOGY: PLAG SPARSELY PHYRIC BASALT;
MASSIVE BASALT COOLING UNIT;
Piece No. : PCE 1A (1-88), 1B (88-111);
Texture : SPARSELY PHYRIC NO CHILL ZONES,
FINE TO MEDIUM GRAINED;
Vesicles : Size(mm): Percent: <1
AMYDULES;
Alteration : FRESH;
Comments : MEDIUM GREY COLOR, CONTINUOUS WITH PREVIOUS CORE;
Phenocrysts: PLAGIOCLASE
Size(mm): 1X2 - 2X5
STUBBY LATHS;
Leg : 58 Top/Bottom Interval(mm): 0/1340 Analyst: Dick, H.
Hole: 443 Sample Midpoint (m) : 551.34
Core: 61 Top of Core Depth (m) : 548.50
Sect: 2 Top of Section Depth(m): 550.00
LITHOLOGY: PLAG PHYRIC BASALT;
Piece No. : PCE 1A (1-44), 1B (44-55), 1C (55-67), 1D (67-77),
2A (79-99), 2B (100-133);
Texture : FINE GRAINED PHYRIC;
Structure : CARBONATE VEINS HAVE SOME IRON STAINING IN THE
BASALT NEAR THEM IN PCES 1C+2A;
Alteration : FRESH
PCES 1A+1B;
SLIGHTLY;
PCES 1C+1D+2A+2B;
Phenocrysts: PLAGIOCLASE
Size(mm): 2X2.5-3X5
SLIGHT ALTERATION OF PHENOS;
Replacement: CARBONATE
FOUND IN VEINS;
FERROUS OXIDE
FOUND STAINING BASALTS AROUND VEINS;
Leg : 58 Top/Bottom Interval(mm): 1350/1500 Analyst: Dick, H.
Hole: 443 Sample Midpoint (m) : 551.50
Core: 61 Top of Core Depth (m) : 548.50
Sect: 2 Top of Section Depth(m): 551.35
LITHOLOGY: APHYRIC TO PLAG SPARSELY PHYRIC BASALT;
Piece No. : PCE 3 (135-139), 4 (140-147);
Texture : APHANITIC, APHYRIC TO SPARSELY PHYRIC,
CHILL ZONE AT 138CM;
Alteration : SLIGHTLY;
Phenocrysts: PLAGIOCLASE
FEW SCATTERED PHENOS;
Leg : 58 Top/Bottom Interval(mm): 0/1450 Analyst: Dick, H.
Hole: 443 Sample Midpoint (m) : 552.95
Core: 61 Top of Core Depth (m) : 548.50
Sect: 3 Top of Section Depth(m): 551.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1A (0-10), 1B (10-23), 1C (17-29), 2A (30-34),
2B (33-42), 2C (41-45), 2D (45-51), 2E (47-54),
3 (55-61), 4 (63-70), 5 (71-77), 6 (80-86),
7 (87-94), 8A (95-104), 8B (105-137), 8C (138-145);
Texture : APHYRIC, FINE-GRAINED TO APHANITIC;
Structure : VEINS FILLED WITH CARB, POSSIBLE FLOWS OR PILLOWS;
Alteration : MOD TO LIGHT
MOD TO LIGHT WEATHERING;
Comments : IT IS NOT CLEAR AS TO WHETHER THESE ARE THIN FLOWS
OR PILLOWS;
Vesicles : Size(mm): Percent: 0-2
Location: Filling: CARB,SMEC
AMYGDALOIDAL 80-120CM WITH CARB AND SMEC FILLING;
Phenocrysts: PLAGIOCLASE ( <1%)
Size(mm): 1X3 TO 2X4
Replacement: CARBONATE
SMECTITE
FERROUS OXIDE
CARBONATE VEINS HAVE FE OXIDE STAINING IN BASALT
PERIPHERY;
Leg : 58 Top/Bottom Interval(mm): 0/1500 Analyst: Dick, H.
Hole: 443 Sample Midpoint (m) : 554.50
Core: 61 Top of Core Depth (m) : 548.50
Sect: 4 Top of Section Depth(m): 553.00
LITHOLOGY: PLAG SPARSELY PHYRIC BASALT;
Piece No. : PCE 1A (1-26), 1B (20-32), 1C (30-39), 2A (42-48),
2B (46-51), 2C (51-56), 3A (57-63), 3B (60-67),
3C (67-75), 3D (74-79), 3E (80-90), 3F (91-102),
3G (98-115), 3H (115-123), 3I (121-139),
4 (141-149);
Structure : PCE 3G+3I HAVE CARBONATE VEINS;
Vesicles : Size(mm): Percent: <1
PCES 1A-3I AMYGDULES;
Size(mm): Percent: 5
PCE 4 AMYGDULES;
Texture : FINE GRAINED;
Alteration : SLIGHTLY;
Vesicles : Size(mm): Percent: <<1
Phenocrysts: PLAGIOCLASE ( 1%)
Size(mm): 1X2 - 2X4
Replacement: CARBONATE
FOUND IN VEINS PCES 3G + 3I;
FERROUS OXIDE
FE OXIDATION IN BASALT NEAR CARBONATE VEINS;
Leg : 58 Top/Bottom Interval(mm): 0/1440 Analyst: Dick, H.
Hole: 443 Sample Midpoint (m) : 559.44
Core: 62 Top of Core Depth (m) : 558.00
Sect: 1 Top of Section Depth(m): 558.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1A (0-7), 1B (7-13), 1C (14-36), 2A (39-41),
2B (42-53), 2C (52-56), 2D (55-65), 3 (67-74),
4A (76-80), 4B (80-87), 4C (87-102), 4D (101-107),
4E (105-110), 5 (114-117), 6 (121-134), 7 (134-144);
Texture : APHYRIC, FINE TO MEDIUM-GRAINED;
Structure : OXIDIZED ZONE AROUND CARBONATE VEINS;
Alteration : FRESH TO MOD
RANGES FROM BROWN WHERE MODERATELY WEATHERED TO
MEDIUM GREY WHERE FRESH;
Vesicles : Size(mm): Percent: <<1
Location: Filling: CALCITE
RARE CALCITE AMYGDULES PRESENT;
Phenocrysts: PLAGIOCLASE ( <<1%)
Size(mm): 2-3 X 1-2
Replacement: CARBONATE
CALCITE
CHLORITE
THERE MAY BE CONSIDERABLE CHLORITE IN GNDMSS;
Leg : 58 Top/Bottom Interval(mm): 0/1500 Analyst: Dick, H.
Hole: 443 Sample Midpoint (m) : 561.00
Core: 62 Top of Core Depth (m) : 558.00
Sect: 2 Top of Section Depth(m): 559.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 1A (0-16), 1B (15-35), 2A (38-50), 2B (50-64),
3A (66-72), 3B (71-82), 3C (82-86), 4 (88-93),
5 (95-98), 6 (101-104), 7 (107-114), 8 (116-126),
9 (127-130), 10 (132-139), 11 (141-145),
12 (147-150);
Texture : APHYRIC, 2 NARROW GLASS CHILL ZONES AT END OF
SECTION GRADING INTO APHANITIC BASALT INTO FINE
GRAINED BASALT WITHOUT A VARIOLITIC ZONE, ONE FINE
GRAINED CHILL ZONE AT 51CM;
Structure : MOD TO SLIGHTLY TO MOD WEATHERED CARBONATE VEINS;
Alteration : MOD
0-35CM;
SLIGHTLY TO MOD
35-150CM;
Phenocrysts: PLAGIOCLASE
Size(mm): 2-3X1-2
RARE;
Replacement: CARBONATE
FOUND IN VEINS;
Leg : 58 Top/Bottom Interval(mm): 0/1480 Analyst: Dick, H.
Hole: 443 Sample Midpoint (m) : 562.48
Core: 62 Top of Core Depth (m) : 558.00
Sect: 3 Top of Section Depth(m): 561.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 1 (1-4), 2 (6-10), 3A (11-21), 3B (20-29),
3C (30-39), 3D (36-41), 3E (40-50), 3F (50-53),
3G (53-64), 4 (66-69), 5 (71-75), 6 (77-79),
7 (82-84), 8 (86-92), 9 (94-104), 10 (106-120),
11 (123-132), 12 (125-148);
Texture : APHYRIC, FINE GRAINED, GLASS CHILL ZONES UP TO 8.0MM
THICK IN PCES 5+6+10+11+12, VARIOLITIC ZONE UNDER
CHILLED MARGINS IS ABSENT;
Structure : CARBONATE VEINS IN MOST SAMPLES, <<<1 PERCENT
CARBONATE FILLED AMYGDULES;
Alteration : MOD;
Phenocrysts: PLAGIOCLASE ( <<1%)
Size(mm): 1-3
Replacement: PALAGONITE
CALCITE
PALAGONITE + CALCITE BRECCIA AT TOP OF CHILL
MARGINS ON SAMPLES 11+12;
CARBONATE
FOUND IN VEINS AND AMYGDULES;
Leg : 58 Top/Bottom Interval(mm): 0/1070 Analyst: Dick, H.
Hole: 443 Sample Midpoint (m) : 563.57
Core: 62 Top of Core Depth (m) : 558.00
Sect: 4 Top of Section Depth(m): 562.50
LITHOLOGY: APHYRIC TO PLAG SPARSELY PHYRIC BASALT;
Piece No. : PCE 1 (1-15), 2 (17-29), 3A (31-42), 3B (37-45),
3C (45-54), 3D (52-67), 3E (67-71), 4 (72-81),
5 (83-88), 6 (90-98), 7 (102-105);
Texture : APHYRIC TO SPARSELY PHYRIC, 2 CHILL ZONES - ONE WITH
GLASS, FINE GRAINED TO APHANITIC AND GLASSY;
Structure : SOME CARBONATE VEINS HAVE AN OXIDIZED ZONE,
SCATTERED CALCITE FILLED AMYGDULES;
Alteration : MOD;
Phenocrysts: PLAGIOCLASE ( <1-1%)
Size(mm): 2-3
SPINEL
PRESENT AS INCLUSIONS IN PLAG PHENOS;
Replacement: CALCITE
FOUND IN AMYGDULES AND VEINS;
Leg : 58 Top/Bottom Interval(mm): 0/1500 Analyst: Dick, H.
Hole: 443 Sample Midpoint (m) : 569.00
Core: 63 Top of Core Depth (m) : 567.50
Sect: 1 Top of Section Depth(m): 567.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 1 (1-8), 2 (11-20), 3 (21-27), 4A (28-37),
4B (35-44), 5 (45-56), 6 (57-63), 7 (65-69),
8 (72-83), 9 (85-98), 10 (100-104), 11 (107-118),
12A (120-132), 12B (131-134), 13A (136-143),
13B (141-150);
Structure : MASSIVE, 3-5 PERCENT AMYGDULES FILLED WITH SMEC +
CALCITE, NUMEROUS CALCITE VEINS WITH OXIDATION ZONES
IN BASALT ADJOINING VEINS;
Texture : APHYRIC;
Alteration : MOD;
Vesicles : Size(mm): Percent: 0-5
VESICLES ARE ABSENT IN MORE WEATHERED PORTIONS;
Phenocrysts: PLAGIOCLASE ( <<1%)
Size(mm): 1-3
Replacement: CALCITE
FOUND IN AMYGDULES AND VEINS;
SMECTITE
FOUND IN AMYGDULES;
Leg : 58 Top/Bottom Interval(mm): 0/1380 Analyst: Dick, H.
Hole: 443 Sample Midpoint (m) : 570.38
Core: 63 Top of Core Depth (m) : 567.50
Sect: 2 Top of Section Depth(m): 569.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 1A (1-5), 1B (5-9), 1C (10-13), 2A (16-23),
2B (22-29), 3 (31-42), 4A (45-55), 4B (56-63),
4C (63-65), 5 (65-83), 6 (85-98), 7 (100-108),
8 (112-130), 9 (134-138);
Texture : APHYRIC, FINE GRAINED, NO CHILL ZONES;
Structure : MASSIVE, 3-7 PERCENT AMYGDULES FILLED WITH CALCITE +
SMEC, NUMEROUS CALCITE VEINS WITH OXIDIZED ZONES
IN ADJACENT BASALT;
Alteration : MOD;
Vesicles : Size(mm): 1-3 Percent: <7
IN OXIDIZED ZONES NEXT TO CARB VEINS MOST
VESICLES ARE EMPTY - SO VESICULARITY MAY BE AS
MUCH AS 7 PERCENT MEDIUM VESICLES (1-3MM);
Phenocrysts: PLAGIOCLASE ( <<<1%)
Size(mm): 2X1 - 3X2
Replacement: CALCITE
FOUND IN AMYGDULES AND VEINS;
SMECTITE
FOUND IN VEINS;
Leg : 58 Top/Bottom Interval(mm): 0/1500 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 572.00
Core: 63 Top of Core Depth (m) : 567.50
Sect: 3 Top of Section Depth(m): 570.50
LITHOLOGY: APHYRIC BASALT;
IDENTICAL TO CORE 63-2;
Piece No. : PCE 1A (1-19), 1B (20-35), 1C (36-50), 1D (51-61),
1E (62-69), 2 (72-77), 3 (80-85), 4 (87-91),
5A (93-106), 5B (107-117), 5C (117-133),
6 (135-143), 7 (145-150);
Texture : APHYRIC, FINE-GRAINED;
Alteration : MOD;
Comments : YELLOW-GREY COLOR,
YELLOWISH COLOR ASSOCIATED WITH OXIDATION;
Vesicles : Size(mm): 0.5-2.0 Percent: 5-10
Location: Filling: CALCITE
Leg : 58 Top/Bottom Interval(mm): 0/1330 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 573.33
Core: 63 Top of Core Depth (m) : 567.50
Sect: 4 Top of Section Depth(m): 572.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 1 (1-25), 2A (27-43), 2B (44-62), 2C (62-72),
2D (72-82), 2E (82-94), 2F (95-107), 3 (109-133);
Texture : FINE GRAINED, APHYRIC;
Alteration : MOD
0-108CM OXIDATION OF BASALT, YELLOWISH-GREY;
FRESH
108-133CM DARK GREY COLOR, NO VESICLES;
Vesicles : Size(mm): <1 Percent: 7
VESICULAR IN THE UPPER PART AND NON-VESICULAR AT
THE BASE OF THE SECTION;
Leg : 58 Top/Bottom Interval(mm): 0/1500 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 575.00
Core: 63 Top of Core Depth (m) : 567.50
Sect: 5 Top of Section Depth(m): 573.50
LITHOLOGY: APHYRIC BASALT;
IDENTICAL TO BASE OF CORE 63-4;
Piece No. : PCE 1A (1-53), 1B (52-66), 1C (67-88), 1D (87-91),
1E (91-110), 1F (111-140), 2 (143-149);
Texture : APHYRIC, FINE GRAINED;
Structure : CALCITE VEIN IN PCE 1E;
Alteration : FRESH
ALTERATION IN ONE PLACE CLOSE TO CALCITE VEIN 1E;
Comments : DARK GREY COLOR;
Vesicles : FEW VESICLES;
Replacement: CALCITE
FOUND IN VEIN PCE 1E;
Leg : 58 Top/Bottom Interval(mm): 0/1320 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 576.32
Core: 63 Top of Core Depth (m) : 567.50
Sect: 6 Top of Section Depth(m): 575.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 1A (2-4), 1B (2-19), 2A (22-44), 2B (43-87),
2C (87-103), 2D (99-105), 3 (107-112), 4 (115-118),
5 (121-131);
Texture : APHYRIC, FINE GRAINED;
Alteration : FRESH
INTERVAL 0-170CM, HOWEVER ALTERATION CLOSE TO
CALCITE + CHLORITE + POSSIBLY SERPENTINE, GREENISH
ALTERATION;
MOD
THE SAME TYPE OF BASALT BUT IT BECOMES OXIDIZED
INTERVAL 107-132CM;
Comments : DARK GREY COLOR;
Vesicles : LOW VESICULARITY;
Replacement: CALCITE
CHLORITE
SERPENTINITE
IDENTITY UNCERTAIN FOR SERPENTINE;
Leg : 58 Top/Bottom Interval(mm): 0/ 750 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 577.25
Core: 63 Top of Core Depth (m) : 567.50
Sect: 7 Top of Section Depth(m): 576.50
LITHOLOGY: APHYRIC BASALT;
IDENTICAL TO CORE 63-6;
Piece No. : PCE 1 (1-27), 2A (28-32), 2B (29-40), 3A (42-55),
3B (56-73);
Texture : APHYRIC, FINE GRAINED;
Alteration : MOD
INTERVAL 0-8CM;
SLIGHTLY
INTERVAL 8-28CM;
FRESH
INTERVAL 28-75CM;
Comments : DARK GREY COLOR;
Vesicles : Size(mm): <1 Percent: 3
Location: Filling: CALCITE
INTERVAL 0-25CM;
Replacement: CALCITE
FILLS VESICLES;
Leg : 58 Top/Bottom Interval(mm): 750/1500 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 578.00
Core: 63 Top of Core Depth (m) : 567.50
Sect: 7 Top of Section Depth(m): 577.25
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 3C (75-90), 3D (91-107), 3E (105-111),
4A (113-132), 4B (133-149);
Texture : APHYRIC, MEDIUM-GRAINED;
Structure : CALCITE-ZEOLITE VEINS;
Alteration : FRESH
INTERVAL 75-107CM;
SLIGHTLY
INTERVAL 107-142CM;
MOD
INTERVAL 142-149CM,
ALTERATION CLOSE TO CALCITE-ZEOLITE VEINS IN THE
SAME PARTS OXIDATION WEATHERING RETURNS;
Comments : DARK GREY COLOR;
Phenocrysts: PLAGIOCLASE
Size(mm): <2
LATHS;
Replacement: CALCITE
ZEOLITE
BOTH FOUND IN VEINS;
Leg : 58 Top/Bottom Interval(mm): 0/1110 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 579.11
Core: 63 Top of Core Depth (m) : 567.50
Sect: 8 Top of Section Depth(m): 578.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 1A (1-2), 1B (1-13), 1C (14-22), 2A (25-58),
2B (59-95), 3 (96-101), 4 (103-110);
Texture : APHYRIC, MEDIUM GRAINED;
Alteration : MOD
INTERVAL 1-8CM;
SLIGHTLY
INTERVAL 8-94CM;
MOD
INTERVAL 94-111CM, ZONE OF ALTERATION IS FRACTURED
AND SUBSTITUTED WITH CALC + GREEN SECONDARY
MINERALS;
Comments : DARK GREY COLOR;
Vesicles : Size(mm): <1 Percent: 1-2
Phenocrysts: PLAGIOCLASE
Size(mm): 2
LATHS;
PYROXENE
Size(mm): 0.5
Replacement: CALCITE
FOUND IN ZONE OF ALTERATION INTERVAL 94-111CM
ACCOMPANIED BY GREEN SECONDARY MINERALS;
Leg : 58 Top/Bottom Interval(mm): 0/ 700 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 578.20
Core: 64 Top of Core Depth (m) : 577.50
Sect: 1 Top of Section Depth(m): 577.50
LITHOLOGY: BASALT;
Piece No. : PCE 1 (1-5);
Texture : TOP OF FLOW, CHILL MARGIN ZONE WITH GLASS RIM, FINE
GRAINED;
Alteration : MOD;
Comments : YELLOW GREY COLOR, DENSE;
Leg : 58 Top/Bottom Interval(mm): 700/1300 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 578.80
Core: 64 Top of Core Depth (m) : 577.50
Sect: 1 Top of Section Depth(m): 578.20
LITHOLOGY: PLAG PHYRIC BASALT;
Piece No. : PCE 2A (7-15), 2B (14-23), 3A (30-77), 3B (78-130);
Texture : PHYRIC, FINE GRAINED;
Structure : CALCITE VEIN;
Alteration : FRESH
ALTERATION CLOSE TO CALCITE VEIN;
Phenocrysts: PLAGIOCLASE
Size(mm): <4-5
Leg : 58 Top/Bottom Interval(mm): 0/1300 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 580.30
Core: 64 Top of Core Depth (m) : 577.50
Sect: 2 Top of Section Depth(m): 579.00
LITHOLOGY: PLAG PHYRIC BASALT;
IDENTICAL TO CORE 64-1;
Piece No. : PCE 1A (1-26), 1B (27-81), 1C (82-130);
Texture : PHYRIC, FINE GRAINED;
Alteration : FRESH
VERY;
Comments : DENSE, DARK GREY BASALT;
Phenocrysts: PLAGIOCLASE
Size(mm): <5
LATHS;
Leg : 58 Top/Bottom Interval(mm): 0/1300 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 581.80
Core: 64 Top of Core Depth (m) : 577.50
Sect: 3 Top of Section Depth(m): 580.50
LITHOLOGY: PLAG PHYRIC BASALT;
IDENTICAL TO CORE 64-2;
Piece No. : PCE 1A (1-29), 1B (29-50), 1C (46-130);
Texture : PHYRIC, FINE GRAINED;
Structure : CALCITE VEIN BETWEEN PCE 1B AND PCE 1C;
Alteration : FRESH
ALTERATION IN TWO PLACES: INTERVAL 46-50CM -CLOSE
TO CALCITE VEIN, INTERVAL 125-130CM -WEATHERING;
Comments : DENSE, DARK GREY COLOR;
Phenocrysts: PLAGIOCLASE
Size(mm): <5
LATHS;
Replacement: CALCITE
FOUND IN VEIN;
Leg : 58 Top/Bottom Interval(mm): 1300/1500 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 582.00
Core: 64 Top of Core Depth (m) : 577.50
Sect: 3 Top of Section Depth(m): 581.80
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 2A (132-136), 2B (137-145), 2C (145-149);
Texture : APHYRIC, FINE GRAINED, TOP IS VERY CLOSE TO THE
GLASSY MARGIN, POSSIBLE PILLOW LAVA;
Alteration : MOD;
Comments : TOP OF NEXT LAVA FLOW, DENSE, YELLOW GREY COLOR;
Leg : 58 Top/Bottom Interval(mm): 0/ 500 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 582.50
Core: 64 Top of Core Depth (m) : 577.50
Sect: 4 Top of Section Depth(m): 582.00
LITHOLOGY: GLASSY MARGIN;
Piece No. : PCE 1 (1-3);
Alteration : SLIGHTLY;
Leg : 58 Top/Bottom Interval(mm): 500/1350 Analyst: Nisterenko, G.
Hole: 443 Sample Midpoint (m) : 583.35
Core: 64 Top of Core Depth (m) : 577.50
Sect: 4 Top of Section Depth(m): 582.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 2A (5-20), 2B (17-20), 2C (21-22), 3A (23-24),
3B (24-29), 3C (24-34);
Texture : APHYRIC, FINE GRAINED;
Alteration : SLIGHTLY;
Comments : YELLOW GREY COLOR;
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