Leg : 59 Top/Bottom Interval(mm): 0/1490 Analyst: Zakariadze, G.
Hole: 447A Sample Midpoint (m) : 114.49
Core: 14 Top of Core Depth (m) : 113.00
Sect: 1 Top of Section Depth(m): 113.00
LITHOLOGY: PLAG-CPX PHYRIC BASALT
Piece No. : PCE 1A (0-5), 1B (5-7), 1C (7-10), 2 (10-13),
3A (13-23), 3B (23-29), 3C (30-35), 3D (36-51),
3E (51-56), 3F (56-62), 4A (63-76), 4B (76-86),
4C (86-97), 4D (97-105), 4E (105-110),
4F (110-116), 4G (116-120), 4H (120-123),
4I (123-129), 4J (130-136), 4K (136-140),
4L (140-149);
Texture : PHYRIC, FINE-GRAINED, MICROPENIDIOMORPHIC GRANULAR
TO SUBOPHITIC;
Structure : ROCK IS CRISSCROSSED BY SEVERAL GENERATIONS OF VEINS
FILLED MAINLY WITH CARBONATE;
Alteration : MOD;
Comments : COLOR IS GRAY, 7.5R 5/10;
Phenocrysts: PLAGIOCLASE (40-45%)
Size(mm): <0.5
EUHEDRAL TO SUBHEDRAL;
CLINOPYROXENE (20-25%)
Size(mm): 0.5-0.7
EUHEDRAL TO ANHEDRAL, EQUALLY DISTRIBUTED;
Groundmass : TITANOMAGNETITE
Replacement: CARBONATE
FILLS VEINS;
Leg : 59 Top/Bottom Interval(mm): 0/1460 Analyst: Zakariadze, G.
Hole: 447A Sample Midpoint (m) : 115.96
Core: 14 Top of Core Depth (m) : 113.00
Sect: 2 Top of Section Depth(m): 114.50
LITHOLOGY: PLAG-CPX-OL PHYRIC BASALT;
DOLERITE;
Piece No. : PCE 1A (0-6), 1B (6-12), 1C (12-29), 2 (20-21),
3A (22-26), 3B (26-33), 3C (33-38), 4 (39-46),
5A (47-52), 5B (51-64), 5C (64-67), 6 (69-70),
7A (71-75), 7B (75-80), 8 (81-86), 9 (88-90),
10 (91-97), 11A (98-103), 11B (102-110),
12A (111-119), 12B (119-126), 13A (127-136),
13B (136-142), 13C (142-146);
Texture : PHYRIC, HOLOCRYSTALLINE, FINE-GRAINED,
MICROPENIDIOMORPHIC GRANULAR TO SUBOPHITIC, IN
INTERVAL 71-103 CM ROCK IS FINE-GRAINED
HOLOCRYSTALLINE DOLERITE THAT GRADUALLY CHANGES TO
MICROPHYRIC BASALT AND THEN TO GLASSY ZONES
SUPPOSEDLY CHILLED MARGINS OF THE PILLOWS;
Structure : ROCK IS DISSECTED BY THIN 1-10 MM MORE FINE-GRAINED
DIKES OF THE SAME MINERALOGICAL COMPOSITION;
Alteration : SLIGHTLY
ALONG THE CONTACTS OF THE DIKES THE HOST ROCKS ARE
SLIGHTLY ALTERED;
Comments : GRAY COLOR 7.5R 5/10;
Phenocrysts: PLAGIOCLASE (40-45%)
SPARSE MICROPHENOS 1-1.5MM;
CLINOPYROXENE ( 20%)
OLIVINE
RARE MICROPHENOS;
Groundmass : TITANOMAGNETITE ( <5%)
Leg : 59 Top/Bottom Interval(mm): 0/1440 Analyst: Zakariadze, G.
Hole: 447A Sample Midpoint (m) : 117.44
Core: 14 Top of Core Depth (m) : 113.00
Sect: 3 Top of Section Depth(m): 116.00
LITHOLOGY: PLAG-CPX-OL PHYRIC BASALT;
Piece No. : PCE 1A (1-5), 1B (5-8), 1C (8-12), 1D (12-15),
2 (17-26), 3A (28-40), 3B (38-45), 3C (45-52),
3D (52-62), 3E (62-70), 3F (70-74), 4A (75-82),
4B (82-91), 4C (91-97), 4D (97-102), 5A (104-111),
5B (110-116), 5C (116-130), 6 (131-134),
7 (136-144);
Texture : TEXTURALLY AND MINERALOGICALLY SIMILAR TO PREVIOUS
SECTION, TRANSITIONS TO EITHER MICRODOLERITE OR TO
GLASSY CHILLED MARGINS OF THE PILLOWS;
Structure : SMALL DOLERITE DIKES AND HYDROTHERMAL VEINS FILLED
WITH CARBONATES;
Replacement: CARBONATE
FILLS VEINS;
Leg : 59 Top/Bottom Interval(mm): 0/ 530 Analyst: Zakariadze, G.
Hole: 447A Sample Midpoint (m) : 118.03
Core: 14 Top of Core Depth (m) : 113.00
Sect: 4 Top of Section Depth(m): 117.50
LITHOLOGY: PLAG-CPX-OL PHYRIC BASALT;
Piece No. : PCE 1A (0-12), 1B (12-20), 1C (20-30), 1D (30-37),
2A (40-47), 2B (46-53);
Texture : TEXTURALLY AND MINERALOGICALLY SIMILAR TO PREVIOUS
SECTION;
Alteration : MOD;
Comments : THIS SECTION MIGHT CORRESPOND TO THE INNER PART OF
THE BASALTIC FLOW;
Phenocrysts: CLINOPYROXENE
OLIVINE
PLAGIOCLASE
Leg : 59 Top/Bottom Interval(mm): 20/1500 Analyst: Zakariadze, G.
Hole: 447A Sample Midpoint (m) : 123.50
Core: 15 Top of Core Depth (m) : 122.00
Sect: 1 Top of Section Depth(m): 122.02
LITHOLOGY: CPX-PLAG PHYRIC BASALT;
Piece No. : PCE 1 (2-8), 2A (10-16), 2B (17-27), 2C (28-35),
2D (28-31), 2E (33-35), 2F (35-37), 2G (37-41),
2H (39-41), 2I (41-47), 2J (47-57), 2K-2L (59-71),
2M (71-81), 2N (81-90), 2O (89-97), 2P (98-106),
2Q (107-115), 2R (115-124), 3 (125-142),
4 (144-150);
Texture : PHYRIC, HOLOCRYSTALLINE, FINE GRAINED-DOLERITIC,
PLAG AND CPX MICROPHENOCRYSTS FORM LOCAL
GLOMEROPHYRIC SEGREGATIONS;
Alteration : SLIGHTLY TO MODERATELY;
Comments : COLOR OF BASALT IS 7.5 YR 5/0
Phenocrysts: PLAGIOCLASE (30-40%)
MICROPHENOS 1.5-2.0 MM HELP FORM GLOMEROPHYRIC
SEGREGATIONS;
CLINOPYROXENE ( 30%)
MICROPHENOS 1.5-2.0 MM HELP FORM GLOMEROPHYRIC
SEGREGATIONS;
TITANOMAGNETITE ( 3-5%)
Leg : 59 Top/Bottom Interval(mm): 0/1350 Analyst: Zakariadze, G.
Hole: 447A Sample Midpoint (m) : 124.85
Core: 15 Top of Core Depth (m) : 122.00
Sect: 2 Top of Section Depth(m): 123.50
LITHOLOGY: PLAG-CPX PHYRIC BASALT;
Piece No. : PCE 1A (0-6), 1B (7-12), 1C (12-15), 2A (18-21),
2B (21-25), 2C (25-30), 3A (31-41), 3B (41-47),
3C (47-52), 4A (54-60), 4B (60-70), 4C (70-74),
4D (74-82), 4E (81-88), 5A (90-99), 5B (99-106),
5C (107-116), 5D (116-123), 5E (123-135);
Texture : PHYRIC, TEXTURALLY AND MINERALOGICALLY SIMILIAR
TO PREVIOUS SECTION;
Alteration : MODERATELY TO EXTENSIVELY;
Phenocrysts: CLINOPYROXENE
PLAGIOCLASE
Leg : 59 Top/Bottom Interval(mm): 50/1500 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 126.50
Core: 15 Top of Core Depth (m) : 122.00
Sect: 3 Top of Section Depth(m): 125.05
LITHOLOGY: PLAG SPARSELY PHYRIC BASALT;
Piece No. : PCE 1A (7-9), 1B (10-13), 1C (15-23), 1D (26-29),
2 (32-37), 3 (40-48), 4A (51-52), 4B (53-55),
5 (57-64), 6A (66-73), 6B (73-78), 6C (78-82),
7 (84-103), 8A (105-110), 8B (110-120),8C (120-128),
8D (128-135), 8E (136-142), 8F (143-150);
Texture : PLAG SPARSELY PHYRIC,PCE 3-8F ARE APHYRIC,PCES 1A-D+
7+8A-8F FINE-GRAINED,PCES 2+3-6C VERY FINE-GRAINED,
TEXTURE OPHITIC (?) WITH IRREGULAR PATCHES OF GLASSY
MESOSTASIS IN PCES 1A-1D,THIN ALTERED GLASSY RINDS
ON PCES 2+6C+7,FRAGMENTS OF ALTERED GLASS AND GREEN
CONCENTRICALLY BANDED SMECTITIE AT 30-37 AND 60-80
CM, FRAGMENTS OF ALTERED GLASS AND GREEN SMECTITE IN
PCE 7,FRAGMENTS OF EXTREMELY ALTERED PALE-BROWN FINE
GRAINED BASALT IN PCE 7,GRANULAR TO SUB-OPHITIC
TEXTURE IN PCES 3-6C,INTERGRANULAR TEXTURE IN PCE
8A-8F,PCE 1 IS 85% XTLLINE;
Structure : PCE 2 VEINED WITH QTZ (?) + ZEOLITES-VEIN 1CM THICK
FILLED WITH ROUNDED CONCENTRICALLY BANDED FRAGMENTS
OF GREEN SMEC (?) SET IN SMEC+ZEOLITE+BASALT
FRAGMENT MATRIX,SCATTERED IRREGULAR VUGS LINED WITH
ZEOLITE IN PCE 2,THIN VEINS OF SMEC SURROUNDED BY
WIDE (1-2CM) PALE WEATHERING RIM IN PCE 3,NUMEROUS
IRREGULAR VEINS WITH LOCALIZED STRONG ALTERATION OF
BASALT IN PCES 8A-8F;
Comments : PCES 1A-1D PALE GREY WITH BROWN MOTTLING (ALTERED)
GLASS (?) ESPECIALLY NEAR EDGES IN PCE 1,PCES
8A-8F HAVE MOTTLED APPEARANCE,UNIT 6 BEGINS AT 104
CM;
Alteration : EXTREMELY
PCE 2 (BUFF COLORED- 10YR5/4) AND PCE 6A-6B;
MODERATELY
INTERVAL 37-77 CM + 117-150 CM;
Vesicles :
Location: SCATTERED Filling: CALCITE,ZEOLITE
PCE 1;
Size(mm): 0.5 Percent: RARE
Location: Filling: EMPTY
PCE 8A-8F;
Phenocrysts: PLAGIOCLASE ( RARE%)
PCE 1A-1D+2;
Replacement: SMECTITE
ZEOLITE
Leg : 59 Top/Bottom Interval(mm): 0/ 800 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 127.30
Core: 15 Top of Core Depth (m) : 122.00
Sect: 4 Top of Section Depth(m): 126.50
LITHOLOGY: APHYRIC TO PLAG SPARSELY PHYRIC BASALT;
Piece No. : PCE 1 (0-2), 2A (5-9), 2B (10-14), 2C (15-17),
3 (20-27), 4A (30-39), 4B (40-43), 5 (45-47),
6 (50-54), 7 (57-62), 8 (64-70), 9 (73-79);
Texture : FINE-GRAINED WITH IRREGULAR PATCHES OF BROWN GLASSY
MESOSTASIS,PCES 1+3-4B APHYRIC,PCES 2+7-9 PLAG
SPARSELY PHYRIC,SLIGHT INCREASE IN GRAINSIZE IN PCE
3-6,PCES 8-9 SLIGHTLY LESS XTLLINE (HENCE MORE
ALTERED);
Structure : THIN VEIN OF SMEC (?) IN PCE 2;
Alteration : MODERATELY
PCES 1-5;
EXTENSIVELY
PCES 6-9;
Comments : ALL UNIT 6;
Vesicles : Size(mm): 0.5-1.0 Percent:
RARE AND SMALL AND EMPTY IN PCES 1,MORE VESICULAR
IN PCES 3-6,NUMEROUS VESICLES IN PCES 3-6(SOME
LINED WITH PALE BLUE ZEOLITE OR SMECTITE-1MM),
PCE 7 IS LESS VESICULAR;
Phenocrysts: PLAGIOCLASE
Size(mm): 1-2
SCATTERED IN PCE 2;
Replacement: ZEOLITE
IN VESICLES;
SMECTITE
IN VEINS AND VESICLES;
Leg : 59 Top/Bottom Interval(mm): 0/ 700 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 131.70
Core: 16 Top of Core Depth (m) : 131.00
Sect: 1 Top of Section Depth(m): 131.00
LITHOLOGY: PLAG SPARSELY PHYRIC BASALT;
SIMILAR TO BASALT IN PREVIOUS SECTION;
Piece No. : PCE 1A (0-5), 1B (3-15), 2 (17-21), 3 (24-27),
4 (30-33), 5 (35-45), 6 (47-52), 7 (54-64),
8 (67-69);
Texture : 90% XTLN, PCES 1+2 FINE-GRAINED,PCES 3+4+5 SIMILAR
BASALT IN CONTACT WITH ALTERED MEDIUM-GRAINED
BASALT (SEGREGATION VEINS OR PERHAPS XENOLITHS (?),
PCES 6+7 SLIGHTLY COARSER;
Structure : SEGREGATION VEINS OR PERHAPS XENOLITHS IN PCES 3-5,
FEW VEINS OF SMECTITE WITH THIN ALTERATION RIMS IN
PCES 6+7;
Alteration : MODERATELY;
Comments : OSERVATION MADE OF WORKING HALF OF CORE,PCE 8 IS
FRAGMENT OF BRECCIA (?) WELL-ROUNDED AND CONTAINING
CHLORITE;
Vesicles :
Location: Filling: ZEOLITE,SMEC
COMMON;
Phenocrysts: PLAGIOCLASE
SPARSE;
Replacement: SMECTITE
VEINS AND VESICLES;
ZEOLITE
Leg : 59 Top/Bottom Interval(mm): 700/1350 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 132.35
Core: 16 Top of Core Depth (m) : 131.00
Sect: 1 Top of Section Depth(m): 131.70
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 9A (72-77), 9B (77-89), 9C (89-95), 9D (95-101),
9E (102-109), 10 (111-122), 11 (125-135);
Texture : COARSER BASALT, 75% XTLN,APHYRIC,OPHITIC WITH COMMON
GLASSY MESOSTASIS (ALTERED TO BROWN CLAYS),BECOMES
SLIGHTLY COARSER BETWEEN 105 AND 125 CM (DOLERITIC)
- OTHERWISE VERY UNIFORM;
Structure : SOME EVIDENCE OF FRACTURING AND VEINING;
Alteration : MODERATELY;
Comments : UNIT 7;
Replacement: CLAY
Minerals Replaced: GLASSY MESOSTASIS
BROWN;
Leg : 59 Top/Bottom Interval(mm): 0/1000 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 133.50
Core: 16 Top of Core Depth (m) : 131.00
Sect: 2 Top of Section Depth(m): 132.50
LITHOLOGY: APHYRIC TO PLAG PHYRIC BASALT;
Piece No. : PCES 1 (0-8), 2 (10-15), 3A (18-30), 3B (30-33),
4 (37-42), 5 (44-49), 6 (53-56), 7 (60-68),
8 (72-76), 9 (80-83), 10 (86-90), 11 (93-98);
Texture : ENTIRE SECTION "COARSE" FINE-GRAINED,APHYRIC,
IRREGULAR AREAS OF GLASSY MESOSTASIS ALTERED TO
SMEC,75% XTLLINE,OPHITIC,RELATIVELY UNIFORM IN
TEXTURE AND COMPOSITION;
Comments : OBSERVATIONS DONE ON WORKING HALF,UNIT 7;
Alteration : MOD
GLASSY MESOSTASIS ALTERED TO BROWN SMEC,SLIGHTLY
MORE ALTERED AT TOP OF SECTION(PCES 1+2 (0-15);
Replacement: SMECTITE
Minerals Replaced: GLASS
Leg : 59 Top/Bottom Interval(mm): 0/1250 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 141.25
Core: 17 Top of Core Depth (m) : 140.00
Sect: 1 Top of Section Depth(m): 140.00
LITHOLOGY: APHYRIC TO PLAG PHYRIC BASALT;
Piece No. : PCES 1 (2-6), 2 (8-15), 3 (18-22), 4 (25-35),
5 (37-44), 6A (47-55), 6B (55-63), 6C (64-69),
7 (72-77), 8A (80-87), 8B (88-98), 8C (99-108),
8D (110-116), 9 (118-123);
Texture : PCE 1 SAME AS PREVIOUS SECTION,PCES 2-4 ARE FINER
GRAINED THAN PCE 1,PCE 5 SAME AS PCES 2-4 AND HAS
GLASSY RIND,PCES 6A-9 ARE FINE-GRAINED,UNIFORM IN
COMPOSITION AND TEXTURE,GLASSY RIND ON PCE 8A;
Structure : PILLOWS WITH NUMEROUS VEINS OF ZEOL AND CALCITE;
Comments : OBSERVATIONS OF WORKING HALF,PCE 1 IS INCLUDED IN
UNIT 7,UNIT 8 (8-125),UNIT 9 BEGINS AT 125;
Alteration : MOD
VEINS OF CALCITE AND ZEOL;
Replacement: ZEOLITE
CALCITE
Leg : 59 Top/Bottom Interval(mm): 1250/1500 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 141.50
Core: 17 Top of Core Depth (m) : 140.00
Sect: 1 Top of Section Depth(m): 141.25
LITHOLOGY: PLAG-OL PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 10 (126-139), 11 (142-147);
Texture : GLASSY RINDS PRESENT;
Structure : PILLOW BASALT;
Comments : OBSERVATIONS OF WORKING HALF,UNIT 9,LIGHT GRAY;
Groundmass : VERY FINE MATRIX;
Phenocrysts: COMBINATION
Size(mm): 10.0-3.0
INCLUDES GLOMEROCRYSTS OF PLAG AND OL;
Leg : 59 Top/Bottom Interval(mm): 0/1500 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 143.00
Core: 17 Top of Core Depth (m) : 140.00
Sect: 2 Top of Section Depth(m): 141.50
LITHOLOGY: PLAG-OL PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1A (1-9), 1B (9-15), 1C (16-20), 2 (24-31),
3A (34-40), 3B (40-43), 3C (43-47), 3D (47-51),
4A (53-58), 4B (60-63), 4C (64-73), 4D (73-76),
4E (77-83), 5 (86-92), 6 (94-96), 7A (98-107),
7B (108-113), 8 (116-118), 9A (120-129),
9B (129-134), 9C (135-139), 10 (143-146);
Texture : UNIFORMLY VERY FINE-GRAINED WITH GLASSY CHILLED
PILLOW MARGINS COMMON,PHYRIC;
Structure : PILLOW BASALT,CALCITE AND ZEOL VEINS;
Comments : CONTINUATION OF UNIT 9,OBSERVATIONS OF WORKING HALF,
LIGHT GRAY COLOR,POSSIBLY ACIDIC(?),DARK COLORED
PHENOS;
Vesicles : Size(mm): Percent: 0
Phenocrysts: COMBINATION
INCLUDES PLAG+MAFICS(AUGITE),TOTAL OF 10% PHENOS;
OLIVINE
Replacement: IDDINGSITE
Size(mm): 1-2
Minerals Replaced: OL PHENOS
ID UNCERTAIN FOR IDDINGS AND OL,DARK BROWN;
Leg : 59 Top/Bottom Interval(mm): 0/1500 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 144.50
Core: 17 Top of Core Depth (m) : 140.00
Sect: 3 Top of Section Depth(m): 143.00
LITHOLOGY: PLAG-CPX PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1 (1-8), 2 (10-12), 3A (15-21), 3B (22-30),
3C (31-36), 4 (37-41), 5A (43-52), 5B (53-58),
5C (58-63), 6 (66-71), 7A (73-85), 7B (86-96),
7C (97-103), 7D (99-107), 8A (111-117),
8B (118-129), 8C (129-133), 8D (133-140),
9 (142-149);
Texture : TEXTURE AND COMPOSITION SIMILAR TO PREVIOUS
SECTION,BECOMES LESS PORPHYRITIC AND COARSER
GRAINED TOWARDS THE BASE,ABUNDANT FRESH GLASSY RIMS,
LITTLE GRAINSIZE VARIATION;
Structure : PILLOW BASALT;
Comments : CONTINUATION OF UNIT 9,UNIT 10 BEGINS WITH PCE 6
(65CM);
Alteration : SLIGHTLY
Leg : 59 Top/Bottom Interval(mm): 0/1500 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 150.50
Core: 18 Top of Core Depth (m) : 149.00
Sect: 1 Top of Section Depth(m): 149.00
LITHOLOGY: PLAG-OL PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1A (1-14), 1B (15-27), 2 (29-30), 3A (32-36),
3B (35-38), 4 (41-45), 5A (48-54), 5B (55-62),
5C (62-66), 6A (68-77), 6B (78-88), 6C (86-98),
6D (98-108), 6E (107-115), 7A (118-129),
7B (127-131), 8 (134-136), 9A (140-145),
9B (145-149);
Texture : FINE-GRAINED,ALMOST HOLOXTLLINE,PORPHYRITIC BASALT,
OCCASIONAL GLASSY RINDS,PCES 1A+1B COARSER THAN
OTHERS;
Structure : PILLOW BASALT,NUMEROUS VEINS OF DARK OLIVE SMEC AND
ZEOL;
Comments : PALE GRAY COLOR,PCES 1A-4 ARE UNIT 10,PCES 5A-9B
ARE UNIT 11;
Alteration : MOD
OL COMPLETELY ALTERED,PATCHY BROWN ALTERATION;
Vesicles : Size(mm): 1.0-2.0 Percent:
Location: Filling: SMEC,ZEOL
COMMON,INFILLED WITH GREEN SMEC AND/OR ZEOL;
Phenocrysts: PLAGIOCLASE
SCATTERED PLAG PHENOS,IN PLACES GLOMEROCRYSTS;
OLIVINE
BROWN EUHEDRAL PSEUDOMORPHS AFTER OL;
Replacement: SMECTITE
ZEOLITE
Leg : 59 Top/Bottom Interval(mm): 0/1500 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 152.00
Core: 18 Top of Core Depth (m) : 149.00
Sect: 2 Top of Section Depth(m): 150.50
LITHOLOGY: PLAG-OL PHYRIC BASALT;
Piece No. : PCES 1 (1-7), 2 (10-32), 3A (34-39), 3B (40-45),
4A (48-52), 4B (53-56), 5 (58-61), 6 (64-69),
7 (72-78), 8 (82-89), 9A (92-99), 9B (97-104),
10A (107-110), 10B (110-121), 11 (123-130),
12 (133-139), 13 (143-148);
Texture : SIMILAR TEXTURE AND COMPOSITION AS CORE 18-1,
BECOMES COARSER GRAINED BETWEEN PCES 5-8;
Comments : FLOW UNIT 12 AT PCE 3A;
Alteration : MOD
Leg : 59 Top/Bottom Interval(mm): 0/ 570 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 152.57
Core: 18 Top of Core Depth (m) : 149.00
Sect: 3 Top of Section Depth(m): 152.00
LITHOLOGY: PLAG-OL PHYRIC BASALT;
Piece No. : PCES 1 (2-9), 2 (13-23), 3 (26-55);
Texture : TEXTURE AND COMPOSITION SIMILAR TO CORE 18-1,GLASS
ON PCE 2(NEW FLOW UNIT?);
Comments : END OF CORE;
Alteration : MOD
Leg : 59 Top/Bottom Interval(mm): 0/1270 Analyst: Zakariadze, G.
Hole: 447A Sample Midpoint (m) : 153.27
Core: 19 Top of Core Depth (m) : 152.00
Sect: 1 Top of Section Depth(m): 152.00
LITHOLOGY: PLAG-OL-CPX PHYRIC BASALT;
Piece No. : PCES 1 (4-10), 2A (16-20), 2B (17-19), 3 (22-30),
4 (30-34), 5 (36-40), 6 (43-46), 7 (48-52),
8 (54-60), 9 (60-66), 10A (67-73), 10B (73-76),
11 (76-81), 12 (81-85), 13A (87-96), 13B (97-100),
14 (103-110), 15A (112-120), 15B (120-126);
Texture : PCES 1-5 FINE-GRAINED,90% XTLLINE,PCES 6-11+13-15B
ARE SIMILAR IN COMPOSITION TO PCES 1-5 BUT FINER
GRAINED,PCE 12 HAS GLASSY RIMS AND REPRESENTS
CONTACT OF THE BASALT WITH GLASSY BOUNDARY ZONE;
Structure : PCES 1-11+13-15B HAVE BROWN WEATHERED ZONES ALONG
FRACTURES,PCES 13A-15B HAVE VEINS INFILLED WITH
ZEOL AND CARB.UNSPEC;
Comments : GRAY COLOR 7.5 YR 6/0,UNIT 12 ENDS AT PCE 15B;
Alteration : MOD
PCES 1-11+13-15B HAVE BROWN WEATHERED ZONES ALONG
FRACTURES,PCES 13A-15B HAVE VEINS WITH ZEOL AND
CARB.UNSPEC;
Vesicles : Size(mm): 1.0 Percent:
Location: Filling: SMEC,ZEOL
VUGS;
Phenocrysts: PLAGIOCLASE
Size(mm): 1.0
CLINOPYROXENE
Size(mm): 1.0
PHENOS and MICROPHENOS OF PLAG-OL,FREQUENT
GLOMEROCRYSTS 2-3MM;
Replacement: CARBONATE
ZEOLITE
Groundmass : SUB-OPHITIC(?);
Leg : 59 Top/Bottom Interval(mm): 1270/1500 Analyst: Zakariadze, G.
Hole: 447A Sample Midpoint (m) : 153.50
Core: 19 Top of Core Depth (m) : 152.00
Sect: 1 Top of Section Depth(m): 153.27
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 16 (128-133), 17 (134-141), 18A (142-146),
18B (146-149);
Texture : FINE-GRAINED,MOTTLED APPEARANCE,APHYRIC,PCE 16 WITH
GLASSY RIM;
Structure : VEINS WITH CARB.UNSPEC+ZEOL+QTZ+SMEC;
Alteration : EXTENSIVELY
Replacement: CARBONATE
ZEOLITE
QUARTZ
SMECTITE
Leg : 59 Top/Bottom Interval(mm): 0/1250 Analyst: Zakariadze, G.
Hole: 447A Sample Midpoint (m) : 154.75
Core: 19 Top of Core Depth (m) : 152.00
Sect: 2 Top of Section Depth(m): 153.50
LITHOLOGY: PLAG-OL PHYRIC BASALT;
Piece No. : PCES 1 (0-18), 2 (20-28), 3A (29-33), 3B (33-41),
4 (43-48), 5 (50-60), 6 (63-67), 7A (71-74),
7B (75-82), 7C (83-87), 8A (88-92), 8B (93-101),
8C (102-110), 8D (111-116), 8E (117-125);
Texture : PCES 1+2 FINE-GRAINED,80-90% XTLLINE,SUB-OPHITIC TO
HYALOPILITIC WITH INTERGRANULAR PATCHES OF
MESOSTASIS,PCES 3A-8A FINE-GRAINED 90% XTLLINE,
SLIGHT INCREASE IN GRAINSIZE and SIMILAR IN
COMPOSITION TO PCES 1+2,PCE 8B OPHITIC &
HOLOXTLLINE and MICRODIORITIC (WITH SLIGHT INCREASE IN
GRAINSIZE RELATIVE TO PCES 1-8A), PCES 8C-8E ARE
SIMILAR IN COMPOSITION and TEXTURE TO PCES 1+2 EXCEPT
FOR RAPID DECREASE IN GRAINSIZE TOWARDS THE BASE;
Structure : PCES 1+2 DISSECTED BY VEINS OF CARB.UNSPEC and ZEOL,
PCES 3A-7C HAVE FRACTURES WITH HEALED EDGES;
Alteration : MOD
ALTERED GLASS IN PCES 1-7C+8B-8E;
Comments : PCES 1-7C+8C-8E ARE PALE GRAY WITH BROWN MOTTLING,
PCE 8B IS PALE GRAY WITH BROWN WEATHERED MARGINS;
Vesicles : Size(mm): TO 1.0 Percent: RARE
Location: Filling: CALCITE,SMEC,ZEOL
PCES 1+2;
Location: Filling: CALCITE,SMEC
SCATTERED,PCES 3A-7C;
Size(mm): Percent: 30
Location: 5.0X1.5 Filling: ZEOL
Shape : IRREGULAR
PCE 8A,LARGE VESICLES;
Phenocrysts: PLAGIOCLASE ( RARE%)
CLINOPYROXENE ( RARE%)
OLIVINE ( RARE%)
RARE PHENOS and MICROPHENOS;
Replacement: CALCITE
SMECTITE
ZEOLITE
Leg : 59 Top/Bottom Interval(mm): 1250/1500 Analyst: Zakariadze, G.
Hole: 447A Sample Midpoint (m) : 155.00
Core: 19 Top of Core Depth (m) : 152.00
Sect: 2 Top of Section Depth(m): 154.75
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 8F (125-131), 9A (132-143), 9B (143-148);
Texture : PCES 8F+9A ARE FINE-GRAINED 80-90% XTLLINE,GLASSY
MARGINAL ZONES (1.5MM);
Structure : FRACTURES,PILLOW FLOW;
Alteration : MOD
GLASS FRESH IN PCES 8F+9A WITH SOME ALTERATION
ALONG FRACTURES;
Leg : 59 Top/Bottom Interval(mm): 0/1400 Analyst: Zakariadze, G.
Hole: 447A Sample Midpoint (m) : 156.40
Core: 19 Top of Core Depth (m) : 152.00
Sect: 3 Top of Section Depth(m): 155.00
LITHOLOGY: PLAG-OL-CPX MICROPHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1 (1-7), 2A (10-19), 2B (13-19), 3 (22-28),
4 (30-38), 5A (39-45), 5B (46-53), 5C (53-60),
6 (62-66), 7 (72-77), 8A (78-88), 8B (88-93),
8C (93-103), 8D (92-100), 8E (103-105),
8F (105-112), 8G (111-128), 8H (128-136);
Texture : ALL PCES FINE-GRAINED,85-90% XTLLINE,SUB-OPHITIC &
ALTERED GLASS MESOSTASIS,PCES 6-8A HAVE CHILLED
GLASSY MARGINAL ZONES;
Structure : PILLOW FLOW,DOLERITIC AT BASE OF FLOW,CARB.UNSPEC &
ZEOL VEINS;
Comments : PALE GRAY COLOR WITH BROWN MOTTLING THROUGHOUT THE
ENTIRE SECTION;
Alteration : MOD
Vesicles :
Location: Filling: SMEC
Location: Filling: CARB.UNSPEC
Location: Filling: ZEOL
PCES 1-5C HAVE SCATTERED FILLED VESICLES &
IRREGULAR VUGS LINED WITH ZEOL;
Groundmass : BROWN MOTTLED GROUNDMASS;
Phenocrysts: PLAGIOCLASE
Size(mm): <0.5
OLIVINE
Size(mm): <0.5
CLINOPYROXENE
Size(mm): <0.5
SCATTERED PRISMATIC PHENOS;
Replacement: SMECTITE
CARBONATE
ZEOLITE
Leg : 59 Top/Bottom Interval(mm): 0/1500 Analyst: Zakariadze, G.
Hole: 447A Sample Midpoint (m) : 159.50
Core: 20 Top of Core Depth (m) : 158.00
Sect: 1 Top of Section Depth(m): 158.00
LITHOLOGY: PLAG-OL-CPX MICROPHYRIC BASALT;
Piece No. : PCES 1 (1-5), 2 (7-9), 3A (10-19), 3B (19-22),
3C (22-25), 3D (25-27), 4 (29-66), 5A (69-82),
5B (80-84), 5C (85-94), 5D (94-97), 6A (100-106),
6B (106-110), 7 (112-115), 8A (117-125),
8B (125-132), 9 (134-439), 10 (142-145),
11 (146-149);
Texture : PCES 1-3D CHILLED MARGINS OF PILLOW,3CM OUTER ZONE
OF FRAGMENTS (1.0X0.5 CM OR LESS) OF ALTERED
VOLCANIC GLASS IN MATRIX OF CARB.UNSPEC and ZEOL,THIN
1-2MM ZONE OF SMEC,ZONE OF FRESH VOLCANIC GLASS,
VITROPHYRIC,FINE-GRAINED,90% XTLLINE,SLIGHTLY
MOTTLED,GLASSY MESOSTASIS,SUB-OPHITIC,PCES 8A-11
FINE-GRAINED,GLASSY RIMS;
Structure : PILLOW FLOW;
Comments : PCES 1-3D ZONAL GREEN SMEC REPLACES VOLCANIC GLASS,
ZONE OF BLACK VOLCANIC GLASS,PCES 4-6B HAVE SLIGHT
PALE BROWN MOTTLING,ENTIRE SECTION A CONTINUATION
OF UNIT 15;
Alteration : MOD
ALTERED VOLCANIC GLASS IN PCES 1-7 (0-117CM);
EXTENSIVELY
PCES 8A-11 ARE EXTREMELY ALTERED;
Vesicles : Size(mm): 0.5-0.8 Percent:
Location: Filling: ZEOL
VESICLES IN ZONE OF BLACK VOLCANIC GLASS IN PCES
1-3D;
Replacement: CARBONATE
ZEOLITE
SMECTITE
Minerals Replaced: VOLCANIC GLASS
GREEN SMEC REPLACES VOLCANIC GLASS IN PCES 1-3D;
Leg : 59 Top/Bottom Interval(mm): 0/1500 Analyst: Zakariadze, G.
Hole: 447A Sample Midpoint (m) : 161.00
Core: 20 Top of Core Depth (m) : 158.00
Sect: 2 Top of Section Depth(m): 159.50
LITHOLOGY: OL-CPX-PLAG PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1A (5-7), 1B (7-11), 2 (14-24), 3 (24-40),
4A (42-55), 4B (56-61), 5A (63-68), 5B (69-81),
5C (81-85), 5D (85-96), 5E (96-100), 6A (101-110),
6B (111-120), 6C (120-131), 6D (132-140),
6E (141-144), 6F (144-148);
Texture : PCES 1-3+6D-6F ARE FINE-GRAINED WITH GLASSY RIMS,
DISSECTED BY THIN (20.5MM) VEINS,PCES 4A-6C FINE-
GRAINED SUB-OPHITIC WITH GRAINSIZE SLIGHTLY LARGER
THAN PCES 1A-3,OCCASIONAL GLASSY RIMS OF PILLOWS IN
PCES 4A-6C;
Structure : PCES 1-6C CRISSCROSSED BY VEINS OF CARB.UNSPEC &
SMEC and ZEOL(20.5MM THICK),PCES 4A-6C ARE FRACTURED;
Comments : CONTINUATION OF UNIT 15,PCES 4A-6C HAVE BROWN ZONES
OF ALTERATION ALONG FRACTURES AND PALE BROWN
MOTTLING,GRAY 7.5YR(5/0);
Alteration : EXTENSIVELY
ENTIRE SECTION;
Vesicles :
Location: Filling: CARB.UNSPEC,
Location: Filling: SMEC,
Location: Filling: ZEOL
PCES 4A-6C;
Leg : 59 Top/Bottom Interval(mm): 0/1500 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 162.50
Core: 20 Top of Core Depth (m) : 158.00
Sect: 3 Top of Section Depth(m): 161.00
LITHOLOGY: PLAG-OL-CPX MODERATELY PHYRIC BASALT;
PILLOW BASALT SIMILAR TO CORE 20-1;
Piece No. : PCES 1 (1-8), 2A (10-27), 2B (24-34), 2C (33-45),
2D (44-55), 2E (56-65), 2F (65-73), 3 (76-78),
4 (79-83), 5A (85-92), 5B (92-104), 5C (104-114),
6A (115-118), 6B (119-126), 6C (126-130),
6D (131-135), 7 (137-149);
Texture : ALL PCES FINE-GRAINED SUB-OPHITIC TO HYALO-OPHITIC &
MOTTLED (GLASSY MESOSTASIS) GLASSY MARGIN AT TOP OF
SECTION,BECOMES COARSER GRAINED NEAR PCES 2E+2F;
Structure : OCCASIONAL VEINS OF ZEOL and CALCITE;
Comments : CONTINUATION OF UNIT 15,VESICLES FILLED WITH BROWN
SMEC,PCES 1-2A ALTERED TO BROWN,PCES 2B-7 ARE GRAY
(N5),ALL PCES HAVE BROWN MOTTLING;
Alteration : MOD
MOTTLING DUE TO ALTERED GLASSY MESOSTASIS,OL
PHENOS ALTERED;
EXTENSIVELY
INTERVAL 1-16CM;
Vesicles : Size(mm): Percent: RARE
Location: Filling: SMEC
BROWNISH SMEC;
Replacement: CLAYS
Minerals Replaced: OL
CARBONATE
Minerals Replaced: OL
ZEOLITE
Leg : 59 Top/Bottom Interval(mm): 0/1000 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 163.50
Core: 20 Top of Core Depth (m) : 158.00
Sect: 4 Top of Section Depth(m): 162.50
LITHOLOGY: PLAG-OL-CPX SPARSELY PHYRIC BASALT;
PILLOW BASALT SIMILAR TO CORE 20-1;
Piece No. : PCE 1A (2-8), 1B (6-10), 1C (9-14), 2 (18-28),
3A (30-36), 3B (36-41), 4 (44-49), 5 (52-56),
6A (59-60), 6B (61-63), 7A (65-67), 7B (66-69),
8 (72-75), 9 (83-88), 10 (92-94), 11 (97-100);
Texture : SIMILAR IN TEXTURE and COMPOSITION TO CORE 20-1,
COARSER GRAINSIZE NEAR THE TOP BECOMING FINER-
GRAINED TOWARDS THE CHILLED MARGIN AT THE BASE,
OPHITIC TEXTURE WITH ALTERED GLASSY MESOSTASIS;
Structure : VEINS and IRREGULAR PATCHES OF ZEOL and CALCITE;
Comments : COLOR GRAY (N5),END OF UNIT 15 and OF CORE AT 100CM;
Alteration : MOD
PCES 1A-9;
EXTENSIVELY
PCES 10+11;
Replacement: ZEOLITE
CALCITE
IRREGULAR PATCHES;
Leg : 59 Top/Bottom Interval(mm): 0/1400 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 168.40
Core: 21 Top of Core Depth (m) : 167.00
Sect: 1 Top of Section Depth(m): 167.00
LITHOLOGY: PLAG-OL-CPX PHYRIC BASALT;
Piece No. : PCES 1 (1-14), 2 (17-27), 3 (29-36), 4 (40-47),
5 (50-57), 6 (59-67), 7 (69-78), 8 (80-87),
9A (90-97), 9B (97-101), 9C (102-111), 9D (111-120),
10 (123-126), 11 (127-132), 12 (135-140);
Texture : FINE-GRAINED OPHITIC(?) SEVERAL GLASSY MARGINS,
IRREGULAR AREAS OF GLASSY MESOSTASIS,85% XTLLINE,
GLASSY RINDS,MOTTLED;
Structure : SEVERAL GLASSY MARGINS SUGGEST PILLOWED SEQUENCE,
VEINS OF ZEOL CUT MOST PCES;
Comments : SEVERAL PCES HAVE WHITE MOTTLING,GLASSY RINDS
CONTAIN GREEN PALAGONITE SHARDS,OBSERVATIONS OF
WORKING HALF,ENTIRE SECTION IS UNIT 16;
Alteration : MOD
OL ALTERED TO IDDINGS,ZEOL VEINS,POSSIBLE
DEVITRIFICATION OF SOME PCES;
EXTENSIVELY
INTERVALS 0-5,38-52,123-133;
Phenocrysts: OLIVINE ( 5%)
Size(mm): 1-2
REPLACED BY RUSTY-BROWN IDDINGS,SUBHEDRAL;
PLAGIOCLASE ( 1-5%)
Size(mm): 1
GLOMEROCRYSTS;
Replacement: PALAGONITE
IDDINGSITE ( 5%)
Size(mm): 1-2
Minerals Replaced: OL
ZEOLITE
VEINS;
Leg : 59 Top/Bottom Interval(mm): 0/1500 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 170.00
Core: 21 Top of Core Depth (m) : 167.00
Sect: 2 Top of Section Depth(m): 168.50
LITHOLOGY: PLAG-OL-CPX PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1A (1-10), 1B (11-23), 2A (25-32), 2B (32-39),
3 (41-48), 4A (50-59), 4B (60-67), 4C (67-73),
4D (73-86), 4E (87-96), 4F (96-106), 4G (107-122),
4H (121-125), 4I (125-133), 4J (133-137),
5 (140-149);
Texture : TEXTURE and COMPOSITION SIMILAR TO CORE 20-1,ALL PCES
FINE-GRAINED BECOMING MORE MASSIVE and COARSER
TOWARDS THE BASE,LARGE(1-3MM) GLOMEROCRYSTS OF PLAG
and ALTERED OL;
Structure : PILLOW BASALT,VEINS OF CALCITE and ZEOL COMMON;
Comments : CONTINUATION OF UNIT 16,OBSERVATIONS OF WORKING
HALF,UPPER 70CM ALTERED TO BROWN BASALT;
Alteration : EXTENSIVELY
PCES 1A-4C EXTENSIVELY ALTERED,UPPER 70 CM ALTERED
TO BROWN BASALT;
MOD
PCES 4D-5;
Phenocrysts: OLIVINE
Size(mm): 1-3
OL ALTERED TO IDDINGS;
PLAGIOCLASE
Size(mm): 1-3
LARGE GLOMEROCRYSTS OF PLAG and OL;
Replacement: IDDINGSITE
Size(mm): 1-3
Minerals Replaced: OL
CALCITE
ZEOLITE
Leg : 59 Top/Bottom Interval(mm): 0/1500 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 171.50
Core: 21 Top of Core Depth (m) : 167.00
Sect: 3 Top of Section Depth(m): 170.00
LITHOLOGY: PLAG-OL-CPX PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1A (1-12), 1B (13-35), 2 (38-40), 3A (42-54),
3B (52-58), 4 (60-67), 5A (69-79), 5B (80-88),
5C (88-96), 5D (96-100), 5E (101-105), 5F (106-113),
5G (114-119), 5H (120-122), 6 (124-131),
7A (134-140), 7B (141-148);
Texture : TEXTURE and COMPOSITION SIMILAR TO CORE 21-1,PCES 1-4
FINE-GRAINED,PCES 5A-7B SIMILAR TO PREVIOUS PCES
EXCEPT MORE ALTERED WITH GLASSY MARGINS COMMON;
Structure : PCES 1-4 FLOW BASE,SOME FRACTURES WITH DRUSY XTLS
LINING SURFACES,CALCITE and ZEOL VEINS,PCES 5A-7B
PILLOW BASALT,NUMEROUS VEINS and VEIN BRECCIAS OF
CALCITE and ZEOL;
Comments : PCE 5A BEGINS UNIT 17,PCES 1-4 ARE OF SAME COLOR AS
PREVIOUS SECTIONS,PCES 5A-7B ARE ALTERED TO A BROWN
COLOR,OBSERVATIONS OF WORKING HALF;
Alteration : MOD
PCES 1-4;
EXTENSIVELY
PCES 5A-7B EXTENSIVELY ALTERED TO A BROWN COLOR;
Groundmass : PCES 1-4 VERY FINE-GRAINED;
Phenocrysts: PLAGIOCLASE ( 5%)
Size(mm): 2-3
ALTERED OL and PLAG LATHS IN PCES 1-4,PERCENTAGE
FOR TOTAL OL and PLAG;
OLIVINE
Size(mm): 2-3
Replacement: CALCITE
ZEOLITE
Leg : 59 Top/Bottom Interval(mm): 0/1350 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 172.85
Core: 21 Top of Core Depth (m) : 167.00
Sect: 4 Top of Section Depth(m): 171.50
LITHOLOGY: PLAG-CPX-OL MODERATELY PHYRIC BASALT;
Piece No. : PCES 1 (1-19), 2A (22-31), 2B (35-42), 3 (45-57),
4 (60-69), 5A (71-80), 5B (81-85), 5C (86-91),
5D (92-98), 5E (100-118), 5F (129-134);
Texture : FINE-GRAINED ALMOST ENTIRELY HOLOXTLLINE,OPHITIC(?);
Structure : CALCITE and ZEOL VEINS COMMON THROUGHOUT THE SECTION;
Comments : CONTINUATION OF UNIT 17,OBSERVATIONS OF WORKING
HALF;
Alteration : MOD
EXTENSIVELY
LOCALIZED NEAR PCES 1+5A+5F;
Groundmass : MATRIX ALMOST HOLOXTLLINE;
Phenocrysts: OLIVINE ( <5%)
Size(mm): 1-2
OL ALTERED TO IDDINGS,EUHEDRAL;
PLAGIOCLASE ( <2%)
Size(mm): <1
SCATTERED LATHS OR GLOMEROCRYSTS WITH OL;
Replacement: IDDINGSITE
Size(mm): 1-2
Minerals Replaced: OL
ZEOLITE
CALCITE
Leg : 59 Top/Bottom Interval(mm): 0/ 800 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 173.80
Core: 21 Top of Core Depth (m) : 167.00
Sect: 5 Top of Section Depth(m): 173.00
LITHOLOGY: PLAG-CPX-OL MODERATELY PHYRIC BASALT;
Piece No. : PCES 1A (1-15), 1B (16-23), 1C (25-37), 2 (40-43),
3 (46-51), 4 (53-58), 5A (61-68), 5B (66-72),
5C (73-78);
Texture : PCES 1A-2+4-5C ARE SIMILAR IN COMPOSITION and TEXTURE
TO CORE 21-4,VERY FINE-GRAINED,PCE 3 IS VERY FRESH
OL BASALT and MUCH COARSER-GRAINED THAN PCES 2+4 WITH
SUDDEN BREAK;
Structure : ALL PCES VEINED WITH ZEOL;
Comments : CONTINUATION OF UNIT 17,OBSERVATIONS OF WORKING
HALF;
Alteration : EXTENSIVELY
PCES 1A-2+5C;
MOD
PCES 4-5B;
Phenocrysts: OLIVINE ( <2%)
Size(mm): 0.2-0.5
PCE 3 VERY FRESH OL;
Replacement: ZEOLITE
Leg : 59 Top/Bottom Interval(mm): 0/1300 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 177.30
Core: 22 Top of Core Depth (m) : 176.00
Sect: 1 Top of Section Depth(m): 176.00
LITHOLOGY: PLAG-CPX-OL PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1 (1-4), 2A (6-16), 2B (16-20), 3A (21-24),
3B (25-31), 3C (32-38), 3D (40-44), 3E (45-50),
3F (51-58), 3G (58-67), 4A (70-75), 4B (76-86),
4C (87-95), 4D (95-103), 4E (104-110),
4F (110-112), 4G (112-121), 4H (122-128);
Texture : ALL PCES VERY FINE-GRAINED,PHANITIC TO VERY FINE-
GRAINED OPHITIC,ABUNDANT GLASSY RINDS,80% XTLLINE,
SIMILAR IN TEXTURE and COMPOSITION TO CORE 21-5;
Structure : PILLOW BASALT,CALCITE OR ZEOL VEINS COMMON;
Comments : OBSERVATIONS OF WORKING HALF,UNIT 17 INCLUDES PCES
1-2B,UNIT 18 INCLUDES PCES 2C-4H;
Alteration : MOD
PCES 1-2B+4B-4E;
EXTENSIVELY
PCES 3A-4A+4F-4H,STRONGEST ALTERATION IN FINE-
GRAINED MATERIAL NEAR GLASSY RIMS;
Phenocrysts: OLIVINE ( <5%)
Size(mm): 1-2
OL PHENOS ALTERED TO BROWN IDDINGS,EUHEDRAL,OFTEN
GLOMEROPORPHYRITIC WITH PLAG;
PLAGIOCLASE ( RARE%)
Size(mm): <0.5
SCATTERED LATHS,OFTEN GLOMEROPORPHYRITIC WITH OL;
Replacement: IDDINGSITE ( <5%)
Size(mm): 1-2
Minerals Replaced: OL
CALCITE
ZEOLITE
Leg : 59 Top/Bottom Interval(mm): 0/1400 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 178.90
Core: 22 Top of Core Depth (m) : 176.00
Sect: 2 Top of Section Depth(m): 177.50
LITHOLOGY: PLAG-CPX-OL MODERATELY PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1 (3-7), 2A (10-14), 2B (15-23), 3 (24-30),
4A (32-36), 4B (36-41), 4C (41-52), 4D (52-59),
5 (61-79), 6 (81-89), 7 (92-102), 8A (104-110),
8B (109-116), 8C (120-127), 8D (128-138);
Texture : SIMILAR IN TEXTURE and COMPOSITION TO CORE 22-1,
CHILLED MARGINS,GENERALLY COARSER-GRAINED TOWARDS
THE BASE,DOLERITIC;
Structure : PILLOW BASALT,VEINS and FRACTURES COMMON WITH ZEOL &
CALCITE;
Comments : OBSERVATIONS OF WORKING HALF,UNIT 18 ENDS WITH PCE
3,UNIT 19 BEGINS WITH PCE 4A LARGE FLOW UNIT (5M?);
Alteration : EXTENSIVELY
FROM 0-45CM;
MOD
FROM 45-140 CM;
Phenocrysts: PLAGIOCLASE ( 3%)
Size(mm): 0.5
RARE PLAG-OL GLOMEROCRYSTS,DISAPPEARING TOWARDS
THE BASE OF THE SECTION;
CLINOPYROXENE ( RARE%)
OLIVINE
RARE PLAG-OL GLOMEROCRYSTS,DISAPPEARING TOWARDS
THE BASE OF THE SECTION;
Replacement: CALCITE
ZEOLITE
Leg : 59 Top/Bottom Interval(mm): 0/ 600 Analyst: Ishi, Teruaki
Hole: 447A Sample Midpoint (m) : 179.60
Core: 22 Top of Core Depth (m) : 176.00
Sect: 3 Top of Section Depth(m): 179.00
LITHOLOGY: PLAG-OL-CPX PHYRIC BASALT;
Piece No. : PCES 1A (0-5), 1B (3-12), 1C (12-27), 1D (27-30),
1E (32-39), 1F (40-49), 1G (48-60);
Texture : SIMILAR IN COMPOSITION TO CORE 22-1,FINE-GRAINED
BECOMING DOLERITIC TOWARDS THE BASE;
Structure : FRACTURES WITH WEATHERING RIMS;
Comments : CONTINUATION OF UNIT 19,OBSERVATIONS OF WORKING
HALF;
Phenocrysts: CLINOPYROXENE ( <5%)
Size(mm): 0.2
SUBHEDRAL,RARE CPX PHENOS;
PLAGIOCLASE ( <5%)
Size(mm): 0.5
Groundmass : HOLOXTLLINE,OPHITIC,THIN WEATHERING RIMS CLOSE TO
FRACTURES;
Leg : 59 Top/Bottom Interval(mm): 0/1500 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 181.50
Core: 23 Top of Core Depth (m) : 180.00
Sect: 1 Top of Section Depth(m): 180.00
LITHOLOGY: DOLERITE;
Piece No. : PCES 1 (0-19), 2A (20-22), 2B (26-44), 2C (44-48),
2D (47-55), 2E (55-61), 2F (61-69), 2G (70-79),
2H (79-85), 3 (87-108), 4 (109-112), 5A (115-130),
5B (120-135), 5C (135-148);
Texture : ALL PCES MEDIUM-GRAINED,DOLERITIC,OPHITIC,
HOLOXTLLINE,NO VARIATION EXCEPT FOR SLIGHT INCREASE
IN GRAINSIZE TOWARDS THE BASE,SIMILAR IN TEXTURE &
COMPOSITION TO CORE 22-3;
Structure : THIN WEATHERING RINDS ASSOCIATED WITH FRACTURES;
Comments : CONTINUATION OF UNIT 19,OBSERVATIONS OF WORKING
HALF;
Alteration : SLIGHTLY
PCES 1-2F ARE FRESH WITH OCCASIONAL ALTERATIONS;
MOD
PCES 2G-5C;
Phenocrysts: CLINOPYROXENE
Size(mm): 0.2-0.5
DARK GREEN PHENOS,TOTAL PHENOS <10%;
PLAGIOCLASE
Size(mm): 0.2-0.5
PLAG LATHS;
OLIVINE
ID OF OL UNCERTAIN;
Leg : 59 Top/Bottom Interval(mm): 0/1450 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 182.95
Core: 23 Top of Core Depth (m) : 180.00
Sect: 2 Top of Section Depth(m): 181.50
LITHOLOGY: DOLERITE;
Piece No. : PCES 1A (2-17), 1B (16-27), 1C (28-34), 2 (37-43),
3A (45-50), 3B (50-57), 3C (56-67), 4A (71-85),
4B (85-91), 4C (91-96), 5 (98-100), 6 (102-113),
7 (116-118), 8A (120-125), 8B (125-127),
8C (128-130), 8D (130-135), 8E (136-138),
8F (140-143);
Texture : SIMILAR IN TEXTURE and COMPOSITION TO CORE 23-1,THIN
WEATHERING RINDS THROUGHOUT,FINE-GRAINED BECOMING
COARSER TOWARDS THE BASE(?),MEDIUM-GRAINED,
DOLERITIC,OPHITIC,HOLOXTLLINE,NO VARIATION WITHIN
SECTION;
Comments : CONTINUATION OF UNIT 19,OBSERVATIONS OF WORKING
HALF;
Alteration : MOD
Phenocrysts: CLINOPYROXENE
Size(mm): 0.5-1.0
DARK GREEN PHENOS;
PLAGIOCLASE
Size(mm): 0.5-1.0
PRESENT AS LATHS;
OLIVINE
ID OF OL UNCERTAIN;
Leg : 59 Top/Bottom Interval(mm): 0/1500 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 184.50
Core: 23 Top of Core Depth (m) : 180.00
Sect: 3 Top of Section Depth(m): 183.00
LITHOLOGY: DOLERITE;
Piece No. : PCES 1 (1-9), 2 (11-21), 3A (25-32), 3B (28-32),
4 (34-41), 5A (43-46), 5B (47-53), 6A (56-70),
6B (69-83), 6C (84-94), 6D (94-102), 6E (103-110),
7 (112-124), 8 (126-134), 9 (135-142), 10 (144-148);
Texture : UNIFORM TEXTURE and COMPOSITION SIMILAR TO CORE 23-1
WITHOUT ANY VARIATIONS;
Structure : VEINS and FRACTURES ARE LESS COMMON THAN IN PREVIOUS
SECTIONS;
Comments : CONTINUATION OF UNIT 19,OBSERVATIONS OF WORKING
HALF;
Alteration : MOD
UNIFORM ALTERATION EXCEPT FOR FRESH AREA IN
MIDDLE OF SECTION;
Phenocrysts: OLIVINE
GRADUAL INCREASE IN OL PHENOS TOWARDS THE BASE;
Leg : 59 Top/Bottom Interval(mm): 0/1000 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 185.50
Core: 23 Top of Core Depth (m) : 180.00
Sect: 4 Top of Section Depth(m): 184.50
LITHOLOGY: DOLERITE;
Piece No. : PCES 1A (1-22), 1B (22-27), 2A (28-34), 2B (35-40),
3A (42-50), 3B (51-60), 4A (62-69), 4B (72-79),
5 (81-99);
Texture : TEXTURE and COMPOSITION SIMILAR TO CORE 23-1,BECOMING
FINER-GRAINED TOWARDS BASE OF UNIT 19,INCREASE IN
PHENOS TOWARDS UNIT BASE (GRAVITY XTL SETTLING?);
Comments : OBSERVATIONS OF WORKING HALF,UNIT 19 ENDS WITH PCE
5 (100CM);
Alteration : MOD
PCES 1A-3A;
EXTENSIVELY
PCES 3B-4B;
Phenocrysts: OTHER ( 10%)
PHENOS INCREASE TOWARD UNIT 19 BASE,POSSIBLY XTL
SETTLING;
Leg : 59 Top/Bottom Interval(mm): 1000/1200 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 185.70
Core: 23 Top of Core Depth (m) : 180.00
Sect: 4 Top of Section Depth(m): 185.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 6 (101-111), 7 (112-118);
Texture : FINE-GRAINED;
Comments : PCES 6+7 ARE PART OF FLOW UNIT 20,OBSERVATIONS OF
WORKING HALF;
Alteration : EXTENSIVELY
Phenocrysts: OLIVINE ( O%)
Leg : 59 Top/Bottom Interval(mm): 0/1500 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 186.50
Core: 24 Top of Core Depth (m) : 185.00
Sect: 1 Top of Section Depth(m): 185.00
LITHOLOGY: APHYRIC TO SPARSELY OL-SPINEL PHYRIC BASALT;
Piece No. : PCES 1A (2-20), 1B (21-27), 1C (08-32), 1D (28-38),
1E (37-45), 1F (46-56), 1G (55-67), 2 (70-77),
3A (79-85), 3B (85-92), 3C (93-102), 4A (104-106),
4B (106-119), 4C (120-130), 4D (131-138),
4E (139-146);
Texture : ENTIRE SECTION FINE-GRAINED;
Structure : PRONOUNCED ZEOL VEINING PARALLEL TO CORE LENGTH;
Comments : CONTINUATION OF UNIT 20,OBSERVATIONS OF WORKING
HALF;
Alteration : EXTENSIVELY
PCES 1A-4C;
MOD
PCES 4D+4E;
Replacement: ZEOLITE
Leg : 59 Top/Bottom Interval(mm): 0/1300 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 187.80
Core: 24 Top of Core Depth (m) : 185.00
Sect: 2 Top of Section Depth(m): 186.50
LITHOLOGY: APHYRIC TO SPARSELY OL-SPINEL PHYRIC BASALT;
Piece No. : PCES 1A (1-18), 1B (19-38), 1C (39-52), 1D (44-54),
2A (56-68), 2B (69-83), 2C (82-89), 2D (90-109),
2E (110-129);
Texture : FINE TO MEDIUM-GRAINED,SIMILAR IN COMPOSITION &
TEXTURE TO CORE 24-1,HOLOXTLLINE,OPHITIC;
Comments : CONTINUATION OF UNIT 20;
Alteration : SLIGHTLY
Phenocrysts: PLAGIOCLASE ( <5%)
Size(mm): 0.5
CLINOPYROXENE ( <2%)
Size(mm): 0.5
ID CPX UNCERTAIN;
OLIVINE ( O%)
Leg : 59 Top/Bottom Interval(mm): 0/ 650 Analyst: Ishi, Teruaki
Hole: 447A Sample Midpoint (m) : 188.65
Core: 24 Top of Core Depth (m) : 185.00
Sect: 3 Top of Section Depth(m): 188.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1A (1-27), 1B (28-47), 2 (50-63);
Texture : PCES 1A+1B SIMILAR IN TEXTURE and COMPOSITION TO CORE
24-2,PCE 2 COARSER-GRAINED and SIMILAR IN COMPOSITION
TO PCES 1A+1B;
Structure : PCES 1A+1B HAVE RARE ZEOL VEINS;
Comments : CONTINUATION OF UNIT 20,PCE 2 MARKS END OF CORE;
Alteration : SLIGHTLY
PCES 1A+1B;
MOD
PCE 2;
Groundmass : PLAGIOCLASE
CLINOPYROXENE
Replacement: ZEOLITE ( RARE%)
Leg : 59 Top/Bottom Interval(mm): 0/1400 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 192.40
Core: 25 Top of Core Depth (m) : 191.00
Sect: 1 Top of Section Depth(m): 191.00
LITHOLOGY: APHYRIC TO SPARSELY OL-SPINEL PHYRIC BASALT;
Piece No. : PCES 1A (1-20), 1B (21-31), 1C (32-48), 1D (49-57),
1E (58-65), 1F (65-67), 1G (68-81), 1H (82-97),
1I (97-109), 1J (109-122), 1K (123-136);
Texture : FINE TO MEDIUM-GRAINED,HOLOXTLLINE,OPHITIC;
Comments : CONTINUATION OF UNIT 20,UNVEINED,SIMILAR TO CORE
24-1 IN COMPOSITION;
Alteration : FRESH
Phenocrysts: PLAGIOCLASE ( <5%)
Size(mm): 0.5
RARE LATHS;
CLINOPYROXENE ( <10%)
Size(mm): 0.5
SCATTERED MICROPHENOS;
Leg : 59 Top/Bottom Interval(mm): 0/1500 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 194.00
Core: 25 Top of Core Depth (m) : 191.00
Sect: 2 Top of Section Depth(m): 192.50
LITHOLOGY: APHYRIC TO SPARSELY OL-SPINEL PHYRIC BASALT;
Piece No. : PCES 1A (1-15), 1B (15-31), 1C (31-45), 1D (46-52),
2A (54-60), 2B (61-72), 2C (72-78), 2D (78-89),
2E (90-100), 2F (100-111), 2G (110-115),
3 (117-119), 4 (126-130), 5 (132-142), 6 (146-149);
Texture : SIMILAR IN TEXTURE and COMPOSITION TO CORE 25-1,OL
PHENOS MORE COMMON TOWARDS BASE (XTL SETTLING?),
PCES 4-6 ARE SIMILAR TO OTHER PCES IN SECTION
EXCEPT FINER-GRAINED WITH GLASSY MARGIN;
Structure : DOLERITIC TOWARDS BASE OF SECTION WITH CALCITE &
ZEOL VEINS,PCES 4-6 PILLOW BASALTS;
Comments : CONTINUATION OF UNIT 20,UNIT 21 BEGINS WITH PCE 4;
Alteration : MOD
EXTENSIVELY
INTERVAL 112-128,EXTREMELY ALTERED NEAR GLASSY
MARGIN;
Phenocrysts: OLIVINE
PHENOS BECOME MORE COMMON TOWARDS THE BASE;
Replacement: ZEOLITE
CALCITE
Leg : 59 Top/Bottom Interval(mm): 0/1500 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 195.50
Core: 25 Top of Core Depth (m) : 191.00
Sect: 3 Top of Section Depth(m): 194.00
LITHOLOGY: OL-PLAG-CPX BASALT;
PILLOW BASALT;
Piece No. : PCES 1 (2-17), 2A (19-29), 2B (30-37), 2C (38-45),
3 (48-62), 4A (67-73), 4B (69-75), 5A (77-80),
5B (79-85), 6 (87-103), 7 (105-114), 8A (117-120),
8B (123-127), 9 (131-137), 10 (139-148);
Texture : PCE 1 FINE-GRAINED SIMILAR IN COMPOSTITION &
TEXTURE TO CORE 25-2,PCES 2A-10 ARE FINE-GRAINED
WITH GLASSY RIMS,GROUNDMASS VARIES FROM GLASSY TO
APHANITIC;
Comments : GLASSY RIMS ARE BLACK,BROWN IDDINGS,DARK GREEN TO
BLACK CPX;
Structure : CALCITE VEINS RARE;
Alteration : MOD
PCE 1;
EXTENSIVELY
PCES 2A-10;
Phenocrysts: OLIVINE ( <5%)
Size(mm): 1.0
SCATTERED ALTERED OL PHENOS,EUHEDRAL TO SUBHEDRAL;
CLINOPYROXENE ( RARE%)
Size(mm): <0.5
PLAGIOCLASE ( RARE%)
RARE LATHS;
Replacement: IDDINGSITE ( <5%)
Size(mm): 1.0
Minerals Replaced: OL
CALCITE ( RARE%)
Leg : 59 Top/Bottom Interval(mm): 0/ 400 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 195.90
Core: 25 Top of Core Depth (m) : 191.00
Sect: 4 Top of Section Depth(m): 195.50
LITHOLOGY: OL-PLAG-CPX BASALT;
PILLOW BASALT;
Piece No. : PCES 1 (2-13), 2 (17-19), 3 (22-29), 4 (32-38);
Texture : SIMILAR IN TEXTURE and COMPOSITION TO CORE 25-3,FINE-
GRAINED,APHANITIC,PCE 1 HAS GLASSY RIND,PHYRIC;
Comments : CONTINUATION OF UNIT 21,END OF CORE AT 40CM (PCE 4);
Alteration : EXTENSIVELY
PCES 1+2,PCE 2 LESS ALTERED THAN PCE 1;
MOD
PCES 3+4,ALTERATION INTERMEDIATE BETWEEN MOD &
EXTENSIVE;
Phenocrysts: OLIVINE ( RARE%)
Size(mm): 0.5
Replacement: IDDINGSITE ( RARE%)
Size(mm): 0.5
Minerals Replaced: OL
Leg : 59 Top/Bottom Interval(mm): 0/1450 Analyst: Zakariadze, G.
Hole: 447A Sample Midpoint (m) : 199.95
Core: 26 Top of Core Depth (m) : 198.50
Sect: 1 Top of Section Depth(m): 198.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1A (0-18), 1B (17-27), 1C (27-35), 1D (35-42),
1E (42-48), 2A (50-60), 2B (60-70), 3 (71-80),
4A (82-91), 4B (91-104), 4C (104-114), 4D (115-124),
4E (124-133), 4F (134-137), 5 (140-144);
Texture : PCES 1A-1E+4A-5 FINE-GRAINED,80% XTLLINE,APHYRIC,
LOCALLY MICROPHYRIC,SUB-OPHITIC,BOTTOM OF PCE 4D &
TOP OF PCE 4E ARE MORE FINE-GRAINED,PCES 2A+2B FINE-
GRAINED WITH THIN ALTERED GLASS RIM,PCE 3 SIMILAR
TO PCES 2A+2B;
Structure : PCES 1A-1E+4A-5 HAVE FRACTURES and ZEOL VEINS;
Comments : PCES 1A-1E+4A-5 PALE GRAY WITH PALE BROWN ZONES OF
ALTERATION ALONG CRACKS and VEINS,CONTINUATION OF
UNIT 21;
Alteration : EXTENSIVELY
PCES 1A-2B+4A-5,BOTTOM OF PCE 4D and TOP OF PCE 4E
ARE SIGNIFICANTLY MORE ALTERED,PCES 2A+2B GLASS
RIM COMPLETELY ALTERED,PCES 1A-2B+4A-5 HAVE ZONES
OF ALTERATION ALONG CRACKS and VEINS;
MOD
PCE 3;
Vesicles : Size(mm): Percent: RARE
Location: Filling: ZEOL
Shape : IRREGULAR
Phenocrysts: CLINOPYROXENE ( RARE%)
MICROPHENOS;
Replacement: ZEOLITE
SMECTITE
Minerals Replaced: GLASS
Leg : 59 Top/Bottom Interval(mm): 0/1500 Analyst: Zakariadze, G.
Hole: 447A Sample Midpoint (m) : 201.50
Core: 26 Top of Core Depth (m) : 198.50
Sect: 2 Top of Section Depth(m): 200.00
LITHOLOGY: APHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1A (0-9), 1B (9-15), 2A (17-20), 2B (20-27),
2C (27-34), 3A (36-41), 3B (41-45), 3C (46-50),
3D (50-54), 3E (55-60), 3F (60-64), 3G (64-72),
3H (72-80), 3I (81-85), 3J (86-91), 4 (94-101),
5A (103-107), 5B (107-110), 5C (111-115),
6A (117-124), 6B (124-126), 6C (127-129),
7A (130-141), 7B (142-145), 7C (145-150);
Texture : PCES 1A+2A-3D+3F-7C ARE FINE-GRAINED APHYRIC,PCES
1B+3E (TOP and BOTTOM OF PILLOW) ARE MORE FINE-
GRAINED WITH GLASSY RIMS,PCES 2A-3D(INTERIOR OF
PILLOW) 70-80% XTLLINE WITH INCREASE IN GRAINSIZE
COMPARED TO PCES 1A+3E,PCES 3F+3G HAVE GLASSY
MARGIN (3.0-3.5CM THICK),PCES 3H-7C SIMILAR IN
COMPOSITION and TEXTURE TO CORE 26-1;
Structure : PCE 1A BOTTOM OF PILLOW(?),PCES 1B-3E REPRESENT ONE
PILLOW WITH FRACTURES and ZEOL and CARB.UNSPEC VEINS,
PCES 3F+3G(TOP OF UNDERLYING PILLOW) CONSIST OF
SMALL (1.0X0.5CM OR LESS) FRAGMENTS OF ALTERED
BASALT CEMENTED WITH ALTERED GLASS;
Comments : PCES 2A-3D GRAY COLOR WITH BROWN ALTERATION ZONES,
CONTINUATION OF UNIT 21;
Alteration : EXTENSIVELY
PCES 1A-3G,PCES 1B+3E-3G HAVE ALTERED GLASS;
MOD
PCES 3H-7C;
Replacement: SMECTITE
Minerals Replaced: GLASS
CARBONATE
ZEOLITE
Leg : 59 Top/Bottom Interval(mm): 0/1500 Analyst: Zakariadze, G.
Hole: 447A Sample Midpoint (m) : 203.00
Core: 26 Top of Core Depth (m) : 198.50
Sect: 3 Top of Section Depth(m): 201.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1A (0-6), 1B (6-12), 2A (14-20), 2B (20-32),
2C (33-41), 2D (41-46), 2E (46-53), 2F (53-61),
2G (61-71), 2H (70-85), 2I (85-102), 2J (102-111),
2K (111-127), 2L (127-146);
Texture : PCES 1A-2B TEXTURE and COMPOSITION SIMILAR TO CORE
26-2 WITH SLIGHTLY LARGER GRAINSIZE (80% XTLLINE),
PCES 2C-2L FINE-GRAINED ALMOST HOLOXTLLINE DOLERITE
SPARSELY MICROPHYRIC TO APHYRIC,OPHITIC TO SUB-
OPHITIC WITH INTERGRANULAR ALTERED GLASS;
Structure : ALL PCES VEINED WITH CARB.UNSPEC and ZEOL;
Comments : CONTINUATION OF UNIT 21,ALL PCES GRAY 7.5YR6/0 WITH
BROWN PATCHES;
Alteration : MOD
ALL PCES,INTERGRANULAR ALTERED GLASS IN PCES
2C-2L;
Groundmass : PLAGIOCLASE
CLINOPYROXENE
OLIVINE
POSSIBLY OL;
Replacement: CARBONATE
ZEOLITE
Leg : 59 Top/Bottom Interval(mm): 0/ 600 Analyst: Zakariadze, G.
Hole: 447A Sample Midpoint (m) : 203.60
Core: 26 Top of Core Depth (m) : 198.50
Sect: 4 Top of Section Depth(m): 203.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1A (1-12), 1B (12-23), 1C (23-36), 1D (37-48),
2A (52-55), 2B (57-59);
Texture : PCES 1A-1D SIMILAR COMPOSITION and TEXTURE TO CORE
26-3 WITH DECREASED GRAINSIZE,PCES 2A+2B FINE-
GRAINED;
Comments : CONTINUATION OF UNIT 21,FLOW UNIT ENDS WITH PCE 2B;
Alteration : MOD
PCES 1A-1D;
EXTENSIVELY
PCES 2A+2B;
Leg : 59 Top/Bottom Interval(mm): 600/1150 Analyst: Zakariadze, G.
Hole: 447A Sample Midpoint (m) : 204.15
Core: 26 Top of Core Depth (m) : 198.50
Sect: 4 Top of Section Depth(m): 203.60
LITHOLOGY: OL-PLAG-CPX PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 3A (61-72), 3B (72-79), 4A (81-88), 4B (88-93),
5A (95-100), 5B (100-106), 6 (108-115);
Texture : PCES 3A+3B APHYRIC WITH GLASSY RIM(1-3CM THICK),
PCES 4A-6 FINE-GRAINED;
Structure : PCES 3A+3B CARB.UNSPEC and ZEOL VEINS and CRISSCROSSED
BY CRACKS and BRECCIATED;
Comments : NEW FLOW UNIT 22,PCES 3A+3B GREEN ZONAL SMEC
REPLACES GLASS,PCE 6 MARKS END OF CORE;
Alteration : EXTENSIVELY
PCES 3A+3B GLASS ALTERED;
MOD
PCES 4A-6;
Phenocrysts: PCES 4A-6 SOME GLOMEROCRYSTS;
Replacement: SMECTITE
Minerals Replaced: GLASS
GLASS RIM ON PCES 3A+3B;
CARBONATE
ZEOLITE
Leg : 59 Top/Bottom Interval(mm): 0/1400 Analyst: Zakariadze, G.
Hole: 447A Sample Midpoint (m) : 208.90
Core: 27 Top of Core Depth (m) : 207.50
Sect: 1 Top of Section Depth(m): 207.50
LITHOLOGY: OL-PLAG-CPX PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1 (1-5), 2A (8-21), 2B (21-38), 2C (37-51),
2D (51-65), 2E (65-73), 2F (73-84), 2G (84-98),
2H (98-105), 2I (104-113), 2J (112-118),
2K (119-122), 2L (122-125), 2M (126-131),
2N (130-136);
Texture : PCE 1 and TOP OF PCE 2A FINE-GRAINED TO GLASSY,BOTTOM
OF PCE 2A FINE-GRAINED APHYRIC,PCES 2B-2N FINE-
GRAINED SUB-OPHITIC SIMILAR COMPOSITION and TEXTURE
TO CORE 26-4;
Structure : PCE 1 and TOP OF PCE 2A PILLOW MARGIN,BOTTOM OF PCE 2A
DISSECTED WITH CARB.UNSPEC and ZEOL IRREGULAR VEINS,
PCES 2B-2N VEINS and FRACTURES;
Comments : CONTINUATION OF UNIT 22,PCES 2B-2N GRAY TO PALE
GRAY WITH BROWN PATCHES;
Alteration : EXTENSIVELY
PCES 1A and TOP OF 2A;
MOD
BOTTOM OF PCE 2A TO PCE 2N;
Phenocrysts: CLINOPYROXENE ( RARE%)
MICROPHENOS;
OLIVINE ( RARE%)
ID OF ALTERED OL UNCERTAIN IN MICROPHENOS;
Replacement: ZEOLITE
CARBONATE
Leg : 59 Top/Bottom Interval(mm): 0/ 160 Analyst: Zakariadze, G.
Hole: 447A Sample Midpoint (m) : 209.16
Core: 27 Top of Core Depth (m) : 207.50
Sect: 2 Top of Section Depth(m): 209.00
LITHOLOGY: OL-PLAG-CPX PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1A (1-10), 1B (10-16);
Texture : BOTH PCES SIMILAR COMPOSITION and TEXTURE TO CORE
27-1,GLASSY RIM;
Comments : PCE 1B MARKS END OF UNIT 22;
Alteration : EXTENSIVELY
Leg : 59 Top/Bottom Interval(mm): 160/1500 Analyst: Zakariadze, G.
Hole: 447A Sample Midpoint (m) : 210.50
Core: 27 Top of Core Depth (m) : 207.50
Sect: 2 Top of Section Depth(m): 209.16
LITHOLOGY: PLAG-OL-SPINEL PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1C (16-21), 1D (20-27), 1E (26-32), 1F (33-41),
1G (41-45), 1H (45-52), 1I (52-59), 1J (58-68),
1K (67-78), 1L (78-90), 1M (89-93), 1N (93-98),
2 (101-104), 3 (106-114), 4 (115-123), 5 (125-130),
6 (132-139), 7A (140-143), 7B (140-143),
7C (144-149);
Texture : PCES 1C-1N FINE-GRAINED WITH GLASS MARGINS,PCES 2-6
GLASSY MARGINAL ZONE WITH GLASSY RIM,PCES 7A-7C
MOTTLED;
Structure : PCES 1C-1I+1J-1N ARE TWO DIFFERENT PILLOWS,PCES 2-6
REPRESENT GLASSY MARGINAL ZONE OF NEXT PILLOW WITH
FRAGMENTS OF BRECCIATED BASALT CEMENTED WITH FINE-
GRAINED CARB.UNSPEC and ZEOL;
Comments : UNIT 23,PCES 2-6 YELLOWISH-GREEN SMEC,PCES 7A-7C
GRAY WITH BROWN PATCHES and PALE BROWN MOTTLING,PCE
7C MARKS END OF CORE;
Alteration : EXTENSIVELY
TOP OF PCE 1C and PCES 7A-7C;
MOD
BOTTOM OF PCE 1C TO PCE 6,PCES 2-6 GLASS
COMPLETELY REPLACED;
Replacement: SMECTITE
Minerals Replaced: GLASS
YELLOWISH-GREEN SMEC REPLACES GLASS IN PCES 2-6;
CARBONATE
ZEOLITE
CARB.UNSPEC and ZEOL CEMENT BRECCIATED BASALT
FRAGMENTS IN PCES 2-6;
Leg : 59 Top/Bottom Interval(mm): 0/1500 Analyst: Zakariadze, G.
Hole: 447A Sample Midpoint (m) : 218.00
Core: 28 Top of Core Depth (m) : 216.50
Sect: 1 Top of Section Depth(m): 216.50
LITHOLOGY: PLAG-OL-SPINEL SPARSELY PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1A (1-3), 1B (4-7), 2A (10-15), 2B (15-29),
2C (29-38), 3A (40-44), 3B (45-48), 4A (49-58),
4B (58-67), 4C (68-81), 4D (82-90), 5A (92-95),
5B (95-98), 5C (98-100), 6A (102-111), 6B (112-119),
6C (119-125), 6D (125-131), 7A (135-142),
7B (142-147);
Texture : PCES 1A-2C+4B-4D+6A-6D FINE-GRAINED,PCES 2A-2C 80%
XTLLINE,MICROPHYRIC,THIN GLASS RIM AT BOTTOM OF PCE
2C,PCES 6A-6F SUB-OPHITIC and SLIGHTLY MORE XTLLINE
WITH GLOMEROMORPHS and SLIGHT ENRICHMENT WITH MAFICS,
PCES 3A-4A+5A-5C VERY FINE-GRAINED,PCES 3A-3B+7A-7B
GLASSY RIM;
Structure : PCES 2A-2C+4B-4D FRACTURES and VEINS,THREE DIFFERENT
PILLOWS IN THE SECTION;
Comments : CONTINUATION OF UNIT 23,PCES 2A-2C+4B-4D GRAY WITH
BROWN PATCHES ALONG CRACKS and BROWN MOTTLING;
Alteration : EXTENSIVELY
PCES 1A-1B+5A-5C+7A-7B,PCES 7A-7B HAVE ALTERED
GLASSY RIM;
MOD
PCES 2A-4D+6A-6D;
Vesicles : Size(mm): <0.5 Percent: RARE
Location: Filling: CARB.UNSPEC,ZEOL
Shape : SPHERICAL
PCES 2A-2C+4B-4D;
Phenocrysts: PLAGIOCLASE
CLINOPYROXENE
MICROPHENOS OF PLAG and CPX;
Replacement: CARBONATE
ZEOLITE
Leg : 59 Top/Bottom Interval(mm): 0/1500 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 219.50
Core: 28 Top of Core Depth (m) : 216.50
Sect: 2 Top of Section Depth(m): 218.00
LITHOLOGY: PLAG-OL-SPINEL SPARSELY PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1 (0-3), 2A (4-16), 2B (17-20), 3 (22-28),
4 (30-38), 5 (42-50), 6 (52-58), 7 (61-64),
8A (68-78), 8B (78-88), 9 (91-97), 10 (100-105),
11 (109-110), 12 (114-119), 13 (122-128),
14A (131-134), 14B (135-141), 14C (141-149);
Texture : ALL PCES SIMILAR COMPOSITION and TEXTURE TO CORE 28-1,
80% HOLOXTLLINE,APHANITIC TO FINELY OPHITIC,
VARIOLITIC NEAR GLASSY MARGINS(PCES 12+13),MOTTLED
APPEARANCE;
Structure : PCES 8A+8B HAVE WIDE VEIN(0.5CM) OF CALCITE and ZEOL
and QTZ(?);
Comments : CONTINUATION OF UNIT 23;
Alteration : MOD
PCES 1-11;
EXTENSIVELY
PCES 12-14C,LOCALIZED IN PCES 5-6+8B-9,PHENOS
Vesicles : Size(mm): <1 Percent:
Location: SCATTERED Filling:
Alteration : NUCLEI DEVITRIFIED(?); C
Vesicles : PARTLY FILLED WITH DARK GREEN SMEC;
Phenocrysts: OLIVINE ( 5-10%)
Size(mm): TO 2
OL ALTERED TO IDDINGS;
PLAGIOCLASE
Size(mm): 2
PRESENT AS LATHS;
Replacement: IDDINGSITE ( 5-10%)
Size(mm): TO 2
Minerals Replaced: OL
CALCITE
ZEOLITE
QUARTZ
ID QTZ UNCERTAIN;
Leg : 59 Top/Bottom Interval(mm): 0/1150 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 220.65
Core: 28 Top of Core Depth (m) : 216.50
Sect: 3 Top of Section Depth(m): 219.50
LITHOLOGY: PLAG-OL-SPINEL PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1 (1-4), 2 (5-14), 3A (16-19), 3B (20-22),
4A (25-30), 4B (26-30), 5A (34-46), 5B (46-53),
5C (53-59), 6 (61-81), 7A (83-88), 7B (82-88),
8 (91-100), 9 (102-114);
Texture : SIMILAR COMPOSITION and TEXTURE TO CORE 28-1,VERY
FINE-GRAINED,70-80% HOLOXTLLINE,SPHERULITIC NEAR
GLASSY MARGINS TO INTERSERTAL(?);
Structure : CARB.UNSPEC and ZEOL VEINS COMMON,WHITISH-GRAY VEINS;
Comments : CONTINUATION OF UNIT 23;
Alteration : EXTENSIVELY
PCES 1-4B;
MOD
PCES 5A-9;
Replacement: CARBONATE
ZEOLITE
Leg : 59 Top/Bottom Interval(mm): 0/ 590 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 226.09
Core: 29 Top of Core Depth (m) : 225.50
Sect: 1 Top of Section Depth(m): 225.50
LITHOLOGY: PLAG-OL-SPINEL PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1A (2-16), 1B (16-24), 1C (26-32), 1D (33-41),
1E (41-52), 1F (52-58);
Texture : SIMILAR COMPOSITION and TEXTURE TO CORE 28-3,PCES
1B+1C HAVE HEAVY CARB.UNSPEC XTLLINE COATING;
Comments : CONTINUATION OF UNIT 23;
Alteration : MOD
Vesicles :
Location: Filling: ZEOL
VESICLES MORE COMMON THAN IN CORE 28-3;
Replacement: ZEOLITE
CARBONATE
Leg : 59 Top/Bottom Interval(mm): 590/1500 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 227.00
Core: 29 Top of Core Depth (m) : 225.50
Sect: 1 Top of Section Depth(m): 226.09
LITHOLOGY: BASALT FAULT BRECCIA;
Piece No. : PCES 1G (59-65), 1H (65-70), 1I (70-72), 1J (72-79),
1K (79-80), 1L (81-85), 2A (87-92), 2B (92-100),
2C (102-108), 2D (108-114), 2E (115-124),
3A (126-128), 3B (129-135), 3C (136-141),
3D (142-149);
Texture : ANGULAR FRAGMENTS(0.5-5CM) OF BASALT SIMILAR IN
TEXTURE and COMPOSITION TO PCES 1A-1F,FRAGMENTS IN
MATRIX OF ZEOL and CALCITE VEINS;
Structure : TRANSITION INTO BRECCIA IS AT LOW ANGLE INDICATING
A STEEPLY DIPPING FAULT OR CRUSH ZONE WITH LIMITED
MOVEMENT;
Comments : CONTINUATION OF UNIT 23;
Alteration : EXTENSIVELY
Replacement: CALCITE
ZEOLITE
CARBONATE
Leg : 59 Top/Bottom Interval(mm): 0/ 500 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 227.50
Core: 29 Top of Core Depth (m) : 225.50
Sect: 2 Top of Section Depth(m): 227.00
LITHOLOGY: BASALT FAULT BRECCIA;
Piece No. : PCES 1A (2-15), 1B (14-23), 1C (24-31), 1D (31-36),
1E (37-41), 1F (41-50);
Texture : TEXTURE and COMPOSITION SIMILAR TO BRECCIA OF CORE
29-1,WIDER CONTRAST IN CLAST SIZE(0.25-7.0CM);
Structure : CRUSH ZONE 1.4M WIDE(APPARENT) AT AN ANGLE OF 65
DEGREES,TRUE THICKNESS OF FAULT ZONE 0.6M;
Comments : CONTINUATION OF UNIT 23,BASALT BRECCIA ENDS WITH
PCE 1F;
Alteration : EXTENSIVELY
Leg : 59 Top/Bottom Interval(mm): 500/1050 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 228.05
Core: 29 Top of Core Depth (m) : 225.50
Sect: 2 Top of Section Depth(m): 227.50
LITHOLOGY: PLAG-OL-SPINEL PHYRIC BASALT;
Piece No. : PCES 1G (50-56), 1H (57-67), 2A (70-80), 2B (78-82),
2C (81-86), 2D (83-87), 2E (86-89), 3 (91-103);
Texture : TEXTURE and COMPOSITION SIMILAR TO CORE 28-3,FINE-
GRAINED,BECOMES VARIOLITIC TOWARDS GLASSY BASE;
Comments : UNIT 23 ENDS WITH PCE 3;
Alteration : EXTENSIVELY;
Leg : 59 Top/Bottom Interval(mm): 1050/1500 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 228.50
Core: 29 Top of Core Depth (m) : 225.50
Sect: 2 Top of Section Depth(m): 228.05
LITHOLOGY: PLAG-OL-SPINEL BASALT;
Piece No. : PCES 4A (106-110), 4B (111-121), 4C (120-130),
4D (129-139), 4E (140-149);
Texture : FINE-GRAINED,SUB-SPHERULITIC;
Structure : THIN VEINS OF CALCITE and ZEOL;
Comments : UNIT 24 BEGINS WITH PCE 4A,PCES 4D+4E CUMULATE;
Alteration : EXTENSIVELY
PCES 4A-TOP OF PCE 4D;
MOD
BOTTOM OF PCE 4D-PCE 4E;
Replacement: CALCITE
ZEOLITE
Leg : 59 Top/Bottom Interval(mm): 0/ 200 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 228.70
Core: 29 Top of Core Depth (m) : 225.50
Sect: 3 Top of Section Depth(m): 228.50
LITHOLOGY: PLAG-OL-SPINEL BASALT;
Piece No. : PCES 1A (1-10), 1B (11-20);
Texture : COMPOSITION and TEXTURE SIMILAR TO PCES 4D+4E OF CORE
29-2,PCE 1A OL CUMULATE,PCE 1B OL-FREE;
Comments : UNIT 24 ENDS WITH PCE 1B;
Alteration : EXTENSIVELY
Replacement: CALCITE
ZEOLITE
Phenocrysts: OLIVINE ( 0%)
PCE 1B;
Leg : 59 Top/Bottom Interval(mm): 200/1250 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 229.75
Core: 29 Top of Core Depth (m) : 225.50
Sect: 3 Top of Section Depth(m): 228.70
LITHOLOGY: PYX-OL-PLAG PHYRIC BASALT;
Piece No. : PCES 2A (22-26), 2B (27-34), 2C (34-39), 2D (40-49),
2E (49-65), 2F (60-64), 2G (66-72), 2H (73-80),
2I (81-85), 2J (85-91), 2K (91-96), 2L (96-104),
2M (104-108), 3A (110-117), 3B (118-123);
Texture : VERY FINE-GRAINED,APHANITIC,VARIOLITIC NEAR CHILLED
CONTACTS;
Structure : OL CUMULATE FROM PCES 2I-3A,PCES 3A+3B OL-FREE;
Comments : PCES 2A-3B CONSTITUTE UNIT 25;
Alteration : EXTENSIVELY
ALL PCES;
Phenocrysts: PYROXENE ( <10%)
Size(mm): 1-2
DARK GREEN PHENOS CONCENTRATED NEAR TOP OF UNIT,
SUBHEDRAL;
OLIVINE
ALTERED TO BROWN IDDINGS,CONCENTRATED 10-20CM
ABOVE UNIT BASE(PCES 2I-3A);
PLAGIOCLASE ( RARE%)
Size(mm): 1-2
PRESENT AS LATHS;
OLIVINE ( 0%)
PCES 3A+3B OL-FREE;
Replacement: IDDINGSITE
Minerals Replaced: OL
Leg : 59 Top/Bottom Interval(mm): 1250/1400 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 229.90
Core: 29 Top of Core Depth (m) : 225.50
Sect: 3 Top of Section Depth(m): 229.75
LITHOLOGY: PLAG-OL BASALT;
Piece No. : PCES 4 (125-129), 5 (130-140);
Texture : VARIOLITIC WITH GLASS RINDS;
Comments : PCE 4 BEGINS UNIT 26;
Alteration : EXTENSIVELY
BOTH PCES;
Leg : 59 Top/Bottom Interval(mm): 0/1500 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 231.50
Core: 29 Top of Core Depth (m) : 225.50
Sect: 4 Top of Section Depth(m): 230.00
LITHOLOGY: OL-PLAG MODERATELY PHYRIC BASALT;
Piece No. : PCES 1A (2-5), 1B (5-13), 1C (14-25), 1D (25-31),
1E (30-37), 1F (38-47), 1G (47-57), 1H (58-67),
1I (68-74), 1J (75-85), 1K (85-92), 1L (92-99),
1M (100-104), 1N (104-112), 1O (112-114),
1P (115-119), 2 (121-128), 3A (132-134),
3B (135-139), 3C (139-144), 3D (144-148);
Texture : SIMILAR IN COMPOSITION and TEXTURE TO PCES 4+5 OF
CORE 29-3,VARIOLITIC TO APHANITIC;
Comments : CONTINUATION OF UNIT 26;
Alteration : EXTENSIVELY
PCES 1A-1J (0-80CM);
MOD
PCES 1J-3D (80-150CM),BECOMING FRESHER TOWARDS
THE BASE;
Phenocrysts: OLIVINE ( <5%)
Size(mm): 1-2
SCATTERED PSEUDOMORPHS AFTER OL,% UNCERTAIN;
PLAGIOCLASE ( RARE%)
PRESENT AS LATHS;
Replacement: IDDINGSITE ( <5%)
Size(mm): 1-2
Minerals Replaced: OL
Leg : 59 Top/Bottom Interval(mm): 0/ 600 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 232.10
Core: 29 Top of Core Depth (m) : 225.50
Sect: 5 Top of Section Depth(m): 231.50
LITHOLOGY: OL-PLAG MODERATELY PHYRIC BASALT;
Piece No. : PCES 1 (1-11), 2 (13-18), 3 (20-26), 4 (28-46),
5 (48-59);
Texture : SIMILAR COMPOSITION and TEXTURE TO CORE 29-4,FINE-
GRAINED;
Comments : CONTINUATION OF UNIT 26,PCE 5 MARKS END OF CORE;
Alteration : MOD
PCES 1-4(0-40CM);
EXTENSIVELY
PCES 4+5 (40-60CM);
Vesicles : Size(mm): 1 Percent: <5
Location: SCATTERED Filling: ZEOL,SMEC
VESICLES LINED WITH BLUE ZEOL OR DARK GREEN SMEC;
Phenocrysts: OLIVINE
LESS COMMON THAN IN CORE 29-4;
Replacement: SMECTITE
ZEOLITE
Leg : 59 Top/Bottom Interval(mm): 0/ 330 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 234.83
Core: 30 Top of Core Depth (m) : 234.50
Sect: 1 Top of Section Depth(m): 234.50
LITHOLOGY: OL-PLAG MODERATELY PHYRIC BASALT;
Piece No. : PCES 1A (1-10), 1B (15-24), 1C (24-32);
Texture : SIMILAR COMPOSITION and TEXTURE TO CORE 29-5,
APHANITIC BECOMING VARIOLITIC NEAR THE UNIT BASE,
GLASSY RIND ON PCE 1C;
Comments : UNIT 26 ENDS WITH PCE 1C;
Alteration : EXTENSIVELY
ALL PCES;
Phenocrysts: OLIVINE ( RARE%)
PLAGIOCLASE ( RARE%)
Leg : 59 Top/Bottom Interval(mm): 330/1500 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 236.00
Core: 30 Top of Core Depth (m) : 234.50
Sect: 1 Top of Section Depth(m): 234.83
LITHOLOGY: PLAG-OL-SPINEL PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1D (33-40), 1E (40-45), 1F (46-60), 1G (61-65),
1H (65-70), 1I (71-75), 1J (76-82), 1K (82-90),
1L (91-99), 1M (99-104), 1N (105-110), 1O (110-119),
1P (120-129), 1Q (129-135), 1R (135-142),
1S (142-149);
Texture : 70% XTLLINE,APHANITIC,VARIOLITIC NEAR CHILLED RINDS,
LITTLE VARIATION IN TEXTURE OF COMPOSITION;
Structure : SECTION IS A SERIES OF PILLOW BASALTS,CALCITE &
ZEOL VEINS;
Comments : PCE 1D MARKS BEGINNING OF UNIT 27;
Alteration : EXTENSIVELY
ALL PCES;
MOD
LOCALIZED BETWEEN PCES 1E-1G+1Q-1S;
Phenocrysts: OLIVINE
ALTERED TO IDDINGS,BECOMES CONCENTRATED TOWARDS
MIDDLE OR BASE OF PILLOWS;
PLAGIOCLASE ( RARE%)
Size(mm): 1
PRESENT AS LATHS;
Replacement: IDDINGSITE
Minerals Replaced: OL
CALCITE
ZEOLITE
Leg : 59 Top/Bottom Interval(mm): 0/1500 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 237.50
Core: 30 Top of Core Depth (m) : 234.50
Sect: 2 Top of Section Depth(m): 236.00
LITHOLOGY: PLAG-OL-CPX PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1A (1-10), 1B (11-15), 1C (16-23), 1D (23-30),
1E (31-40), 1F (40-48), 1G (48-50), 1H (51-55),
1I (55-64), 1J (65-71), 1K (72-79), 1L (80-84),
1M (85-86), 1N (87-95), 1O (95-104), 2A (106-112),
2B (111-121), 2C (121-125), 2D (125-135),
2E (135-139), 2F (140-142), 2G (142-144),
2H (145-150);
Texture : SIMILAR COMPOSITION and TEXTURE TO CORE 30-1 PCES
1D-1S,PHYRIC,APHANITIC TO VARIOLITIC,GLASS RINDS ON
PCES 1C+1K-1N+2A,OL XTL SETTLING(& CPX?) TOWARD
PILLOW BASE,PALAG ON GLASS RIMS;
Structure : PALAG ON GLASS RIMS;
Comments : CONTINUATION OF UNIT 27;
Alteration : EXTENSIVELY
PILLOWS ARE STRONGLY ALTERED NEAR RIMS (GLASS
RIND IS GENERALLY FRESH EXCEPT FOR OUTERMOST
PALAG PORTION) and BECOMES PROGRESSIVELY LESS
ALTERED TOWARDS THE CENTERS (CORRESPONDS WITH
DEGREE OF XTLLIZATION);
Phenocrysts: OLIVINE
INCREASED OL CONCENTRATION TOWARDS PILLOW BASE
INDICATING XTL SETTLING;
OLIVINE ( 0%)
PCES 1J-1L OL-FREE;
PLAGIOCLASE
CLINOPYROXENE ( RARE%)
XTL SETTLING WITH OL IN PCES 2A-2H UNCERTAIN;
Replacement: PALAGONITE
Minerals Replaced: GLASS
ZEOLITE
CALCITE
ABUNDANT INTER-PILLOW ZEOL and CARB.UNSPEC;
Leg : 59 Top/Bottom Interval(mm): 0/1400 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 238.90
Core: 30 Top of Core Depth (m) : 234.50
Sect: 3 Top of Section Depth(m): 237.50
LITHOLOGY: PLAG-OL PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1A (1-4), 1B (4-10), 1C (10-19), 2A (20-27),
2B (28-30), 2C (31-37), 2D (38-47), 2E (47-51),
2F (52-60), 2G (61-66), 3A (69-71), 3B (72-81),
3C (81-95), 3D (95-100), 3E (101-109), 3F (110-116),
3G (117-121), 3H (121-129), 3I (130-139);
Texture : SIMILAR TEXTURE and COMPOSITION TO CORE 30-2,GLASS RIM
ON PCES 2A+2D-3B,OL XTL SETTLING INCREASES IN PCES
3C-3I;
Structure : SERIES OF PILLOWS SIMILAR TO CORE 30-2,RARE CALCITE
and ZEOL VEINS;
Comments : CONTINUATION OF UNIT 27,PCES 2E+2F CONTAIN INTER-
PILLOW UNIDENTIFIED PALE-BROWN MINERAL;
Alteration : EXTENSIVELY
BECOMES FRESHER TOWARDS BASE OF SECTION;
Vesicles : Size(mm): Percent: 0
GENERALLY NON-VESICULAR;
Phenocrysts: OLIVINE
XTL SETTLING IN PCES 3C-3I;
Replacement: CALCITE
ZEOLITE
PCES 2E+2F INTER-PILLOW CALCITE and ZEOL &
UNIDENTIFIED PALE-BROWN MINERAL;
Leg : 59 Top/Bottom Interval(mm): 0/1500 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 240.50
Core: 30 Top of Core Depth (m) : 234.50
Sect: 4 Top of Section Depth(m): 239.00
LITHOLOGY: PLAG-OL PHYRIC BASALT;
PLAG-OL-SPINEL PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1A (1-19), 1B (20-26), 1C (27-33), 1D (34-41),
1E (41-52), 1F (52-59), 1G (59-67), 1H (68-75),
1I (75-90), 1J (90-100), 1K (100-107), 1L (107-116),
1M (117-122), 1N (123-130), 1O (131-137),
1P (138-144), 1Q (144-149);
Texture : SIMILAR TEXTURE and COMPOSITION TO CORE 30-2,GLASS RIM
ON BOTTOM OF PCE 1E,NO EVIDENCE OF XTL SETTLING,PCES
1F-1Q PLAG-OL-SPINEL PHYRIC BASALT ACCORDING TO THE
EDITOR;
Structure : LARGER PILLOW BASALT THAN PREVIOUS (TO 1M);
Comments : CONTINUATION OF UNIT 27;
Alteration : EXTENSIVELY
Phenocrysts: OLIVINE
PLAGIOCLASE
Leg : 59 Top/Bottom Interval(mm): 0/1200 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 241.70
Core: 30 Top of Core Depth (m) : 234.50
Sect: 5 Top of Section Depth(m): 240.50
LITHOLOGY: PLAG-OL PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1A (0-4), 1B (5-8), 2A (10-20), 2B (20-27),
2C (27-33), 2D (34-38), 3A (40-44), 3B (44-52),
3C (52-61), 3D (62-74), 3E (75-82), 4A (83-90),
4B (91-101), 4C (101-108), 4D (109-119);
Texture : SIMILAR COMPOSITION and TEXTURE TO CORES 30-3 and 30-4,
APHANITIC TO VARIOLITIC,GLASS RIMS ON PCES 1B-2A+2D-
3A+4A(?);
Structure : SMALLER PILLOWS THAN CORE 30-4 (TO 0.5M);
Comments : CONTINUATION OF UNIT 27;
Alteration : EXTENSIVELY
Phenocrysts: PLAGIOCLASE
OLIVINE
Leg : 59 Top/Bottom Interval(mm): 0/ 300 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 243.80
Core: 31 Top of Core Depth (m) : 243.50
Sect: 1 Top of Section Depth(m): 243.50
LITHOLOGY: PLAG-OL-SPINEL PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1A (2-7), 1B (7-15), 1C (15-21), 2 (24-29);
Texture : SIMILAR COMPOSITION and TEXTURE TO CORES 30-1 TO 30-5,
APHANITIC OR GLASSY;
Comments : UNIT 27 ENDS WITH PCE 2;
Alteration : EXTENSIVELY
PCES 1A-1C;
MOD
PCE 2;
Phenocrysts: PLAGIOCLASE
OLIVINE
Leg : 59 Top/Bottom Interval(mm): 300/1500 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 245.00
Core: 31 Top of Core Depth (m) : 243.50
Sect: 1 Top of Section Depth(m): 243.80
LITHOLOGY: PILLOW BASALT BRECCIA;
Piece No. : PCES 3A (31-39), 3B (39-43), 4 (46-52), 5 (54-61),
6 (63-66), 7 (68-71), 8 (72-79), 9 (81-89),
10 (91-93), 11 (95-98), 12 (101-105), 13 (106-108),
14 (110-113), 15 (115-120), 16 (121-126),
17 (128-131), 18 (133-139), 19 (142-145),
20 (147-149);
Texture : CLASTS OF FINE-GRAINED APHANITIC BASALT WITH GLASS
BRECCIA POSSIBLY NOT TECTONIC (AUTOBRECCIATION?),
PCES 3A-6+10-20 FINE BRECCIA,PCES 7-9 COARSE
BRECCIA;
Comments : PCE 3A BEGINS UNIT 28;
Alteration : EXTENSIVELY
Phenocrysts: PLAGIOCLASE
OLIVINE
ALL PHENOS PRESENT IN BASALT;
Replacement: CALCITE
QUARTZ
ZEOLITE
Leg : 59 Top/Bottom Interval(mm): 0/1500 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 246.50
Core: 31 Top of Core Depth (m) : 243.50
Sect: 2 Top of Section Depth(m): 245.00
LITHOLOGY: PILLOW BASALT BRECCIA;
Piece No. : PCES 1 (0-7), 2 (9-11), 3 (13-19), 4 (20-24),
5 (26-29), 6 (31-35), 7A (36-43), 7B (44-49),
8A (51-58), 8B (59-61), 8C (62-68), 9A (70-77),
9B (77-82), 10A (83-86), 10B (86-91), 10C (92-96),
11 (98-103), 12A (104-109), 12B (110-115),
12C (116-120), 12D (120-128), 12E (129-133),
12F (134-138), 13A (140-142), 13B (143-147),
13C (148-150);
Texture : SIMILAR COMPOSITION and TEXTURE TO CORE 31-1
(30-150CM),BASALT CLASTS ARE APHANITIC;
Structure : BRECCIATION NOT PRONOUNCED AT TOP and BOTTOM OF
SECTION (PCES 1-4+12C-13C);
Comments : CONTINUATION OF UNIT 28;
Alteration : EXTENSIVELY
PCES 1+13A-13C,LOCALIZED IN PCES 8C-10B;
MOD
PCES 2-12F;
Phenocrysts: OLIVINE (10-15%)
PSEUDOMORPHS MORE ABUNDANT THAN PREVOUS SECTIONS;
PLAGIOCLASE
Leg : 59 Top/Bottom Interval(mm): 0/ 370 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 246.87
Core: 31 Top of Core Depth (m) : 243.50
Sect: 3 Top of Section Depth(m): 246.50
LITHOLOGY: PILLOW BASALT BRECCIA;
Piece No. : PCES 1A (0-9), 1B (9-14), 2 (17-24), 3A (26-33),
3B (33-36);
Texture : TEXTURE and COMPOSITION SIMILAR TO CORE 31-2;
Structure : PCES 2-3B BRECCIA;
Comments : UNIT 28 ENDS WITH PCE 3B;
Alteration : EXTENSIVELY
Leg : 59 Top/Bottom Interval(mm): 370/1500 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 248.00
Core: 31 Top of Core Depth (m) : 243.50
Sect: 3 Top of Section Depth(m): 246.87
LITHOLOGY: PLAG-0L-SPINEL PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 4 (38-40), 5A (43-47), 5B (48-52), 5C (53-58),
6 (61-65), 7 (68-73), 8 (76-79), 9 (81-88),
10A (92-100), 10B (100-108), 10C (109-113),
11A (115-119), 11B (120-124), 12A (126-133),
12B (134-146);
Texture : FINE-GRAINED,SIMILAR GRAINSIZE and COMPOSITION &
TEXTURE TO UNIT 28 BASALTS,GLASS RIMS ON PCES
8+9+10C-12A;
Structure : PCES 8+9 SLIGHT BRECCIATION;
Comments : PCE 4 BEGINS UNIT 29;
Alteration : MOD
PCES 4-7+12B;
EXTENSIVELY
PCES 8-12A;
Phenocrysts: PLAGIOCLASE ( 10%)
GREATER PROPORTION OF PLAG PHENOS THAN IN BASALTS
OF UNIT 28;
OLIVINE ( <10%)
Leg : 59 Top/Bottom Interval(mm): 0/1350 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 249.35
Core: 31 Top of Core Depth (m) : 243.50
Sect: 4 Top of Section Depth(m): 248.00
LITHOLOGY: PLAG-0L-SPINEL PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1A (1-13), 1B (13-20), 1C (21-33), 2A (34-44),
2B (44-50), 2C (50-58), 2D (58-64), 3A (65-72),
3B (72-76), 4A (78-88), 4B (88-94), 5 (97-102),
6A (107-115), 6B (106-114), 6C (114-117),
6D (117-124), 6E (124-127), 6F (128-134);
Texture : FINE-GRAINED,SIMILAR COMPOSITION and TEXTURE TO CORE
31-3 PCES 4-12B,70% XTLLINE,APHANITIC TO VARIOLITIC,
GLASSY RIMS ON PCES 1C+2A+3A+6E,ABUNDANT PILLOW
MARGINS;
Structure : INTER-PILLOW CARB.UNSPEC and ZEOL COMMON WITH FEW
VEINS OF SAME MATERIAL;
Comments : CONTINUATION OF UNIT 29,DARK GREEN CPX PHENOS
COMMON IN LOWER END OF CORE,PCE 6F MARKS END OF
CORE;
Alteration : MOD
PCES 1A-3B;
EXTENSIVELY
PCES 4A-6F and GLASSY MARGINS;
Vesicles :
Location: Filling: SMEC
SCATTERED VESICLES LINED OR FILLED WITH BLUE SMEC;
Phenocrysts: PYROXENE
PHENOS COMMON IN PCES 4A-6F;
Replacement: CARBONATE
SMECTITE
ZEOLITE
Leg : 59 Top/Bottom Interval(mm): 0/1500 Analyst: Zakariadze, G.
Hole: 447A Sample Midpoint (m) : 254.00
Core: 32 Top of Core Depth (m) : 252.50
Sect: 1 Top of Section Depth(m): 252.50
LITHOLOGY: PLAG-OL-SPINEL BASALT;
PILLOW BASALT;
Piece No. : PCES 1 (1-5), 2 (7-17), 3A (19-25), 3B (25-31),
3C (32-37), 3D (38-49), 3E (49-58), 3F (58-64),
3G (64-66), 3H (67-69), 3I (70-81), 3J (82-88),
3K (88-112), 3L (113-120), 3M (121-127),
3N (127-134), 4A (135-145), 4B (146-149);
Texture : CENTRAL PARTS OF PILLOWS FINE-GRAINED,MICROPHYRIC,
80% XTLLINE,APHYRIC TO GLASSY AT PILLOW MARGINS,
LOCALIZED BRECCIATION IN THE RIMS;
Structure : PILLOWS DISSECTED BY VEINS,LOCALIZED BRECCIATION IN
THE RIMS,FRAGMENT OF BASALT and ALTERED GLASS CEMENTED
BY ZEOL;
Comments : CONTINUATION OF UNIT 29;
Alteration : EXTENSIVELY
Vesicles : Size(mm): Percent: RARE
Location: Filling: ZEOL,CARB.UNSPEC
SCATTERED;
Size(mm): Percent: RARE
Location: Filling: SMEC,CHLORITE(?)
SCATTERED,ID OF CHLORITE UNCERTAIN;
Phenocrysts: OLIVINE
COMPLETELY ALTERED;
PLAGIOCLASE
PYROXENE
ALL PRESENT AS MICROPHENOS,SPARSE,
GLOMEROPORPHYRIC SEGREGATIONS;
Replacement: ZEOLITE
CARBONATE
SMECTITE
CHLORITE
ID OF CHLORITE UNCERTAIN;
IDDINGSITE
Minerals Replaced: OL
ALL OL ALTERED TO IDDINGS;
Leg : 59 Top/Bottom Interval(mm): 0/1500 Analyst: Zakariadze, G.
Hole: 447A Sample Midpoint (m) : 255.50
Core: 32 Top of Core Depth (m) : 252.50
Sect: 2 Top of Section Depth(m): 254.00
LITHOLOGY: PLAG-OL-SPINEL BASALT;
PILLOW BASALT;
Piece No. : PCES 1A (2-14), 1B (12-21), 2A (22-31), 2B (31-45),
2C (44-50), 2D (50-59), 3 (61-63), 4A (65-73),
4B (73-80), 4C (80-84), 4D (84-90), 5A (91-97),
5B (97-103), 5C (103-106), 6A (108-119),
6B (119-124), 6C (124-127), 6D (128-134),
6E (135-139), 6F (135-138), 7A (141-147),
7B (145-148);
Texture : SIMILAR TEXTURE and COMPOSITION TO CORE 32-1;
Structure : FIVE PILLOW UNITS,ALL PILLOWS HAVE ALTERED MARGINAL
GLASSY ZONES and ARE DISSECTED BY CARB.UNSPEC and ZEOL
VEINS;
Comments : CONTINUATION OF UNIT 29;
Alteration : MOD
INTERVAL 0-40CM,INTERVALS 52-57+65-90CM SLIGHTLY
MORE ALTERED;
EXTENSIVELY
INTERVALS 40-52+57-65+90-150CM;
Phenocrysts: COMBINATION (10-15%)
INCLUDES PYX&OL,PCE 2D FRAGMENT;
COMBINATION (10-15%)
INCLUDES OL&PYX,PCE 6D (PCE 6B?);
Replacement: CARBONATE
ZEOLITE
Leg : 59 Top/Bottom Interval(mm): 0/1500 Analyst: Zakariadze, G.
Hole: 447A Sample Midpoint (m) : 257.00
Core: 32 Top of Core Depth (m) : 252.50
Sect: 3 Top of Section Depth(m): 255.50
LITHOLOGY: PLAG-OL-SPINEL BASALT;
PILLOW BASALT;
Piece No. : PCES 1A (0-11), 1B (10-18), 2 (20-23), 3A (25-33),
3B (33-43), 4 (46-49), 5A (51-59), 5B (59-66),
6 (68-71), 7A (74-79), 7B (79-82), 7C (79-81),
8A (84-88), 8B (89-101), 9 (113-133), 10 (136-143),
11 (146-149);
Texture : SIMILAR COMPOSITION and TEXTURE TO CORE 32-1,GLASS
RIM ON PCES 1A+10,MICROPHYRIC TO APHYRIC;
Comments : CONTINUATION OF UNIT 29,UNIT 29 ENDS WITH PCE 11;
Alteration : MOD
PCES 1A-8C;
EXTENSIVELY
PCES 9-11;
Phenocrysts: PLAGIOCLASE
PCE 8C HAS SLIGHT INCREASE IN PLAG;
Leg : 59 Top/Bottom Interval(mm): 0/ 450 Analyst: Zakariadze, G.
Hole: 447A Sample Midpoint (m) : 261.95
Core: 33 Top of Core Depth (m) : 261.50
Sect: CC Top of Section Depth(m): 261.60
LITHOLOGY: PLAG-OL-SPINEL BASALT;
PILLOW BASALT;
Piece No. : PCES 1 (1-7), 2 (9-11), 3A (13-21), 3B (13-21),
4 (23-27), 5 (29-36), 6 (38-43);
Texture : PCES 1+2+5 CONTACT OF FINE-GRAINED BASALT and GLASSY
MATRIX WITH BRECCIATED GLASSY MARGIN,MADE OF ALTERED
GLASS and FINE-GRAINED BASALT OF OUTER EDGE and CEMENTED
WITH ZEOL and CARB.UNSPEC,PCES 3A+3B SIMILAR TO PCES
1+2 EXCEPT BASALT IS MORE XTLLINE (70-80%),PCE 4
FINE-GRAINED and MOTTLED,PCE 6 FINE-GRAINED;
Comments : UNIT 29,PCE 4 HAS PALE BROWN MOTTLING;
Alteration : EXTENSIVELY
INTERVAL 17-26 and PCE 6 ARE SLIGHTLY LESS ALTERED;
Phenocrysts: PLAGIOCLASE
OLIVINE
PCE 6 HAS ALTERED PLAG and OL PHENOS;
Replacement: CARBONATE
ZEOLITE
SMECTITE
Minerals Replaced: GLASS
Leg : 59 Top/Bottom Interval(mm): 0/1400 Analyst: Zakariadze, G.
Hole: 447A Sample Midpoint (m) : 271.90
Core: 34 Top of Core Depth (m) : 270.50
Sect: 1 Top of Section Depth(m): 270.50
LITHOLOGY: PLAG-OL-SPINEL BASALT;
PILLOW BASALT;
Piece No. : PCES 1A (1-3), 1B (4-5), 2A (7-27), 2B (28-32),
3 (33-51), 4A (52-73), 4B (73-82), 4C (81-92),
4D (93-103), 4E (103-120), 4F (120-123),
5 (126-133), 6 (135-140);
Texture : PCES 1A-3 SIMILAR TEXTURE and COMPOSITION TO CORE
33-CC,PCES 1A-2B FINE-GRAINED SUB-OPHITIC PHYRIC
WITH INTERGRANULAR ALTERED GLASS,PCE 2B ENRICHED IN
GLASS,PCE 3 MARGINAL GLASSY ZONE BETWEEN PILLOWS
WITH PART OF THE ZONE BRECCIATED WITH FRAGMENTS OF
GLASS and BASALT CEMENTED BY CARB.UNSPEC and ZEOL,PCES
4A-6 FINE-GRAINED SUB-OPHITIC WITH PCES 5+6
ENRICHED WITH ALTERED GLASSY MESOSTAS;
Structure : PART OF PCE 3 BRECCIATED,PCES 4A-6 RARE CARB.UNSPEC
and ZEOL VEINS (0.5MM);
Comments : PCES 1A-3 CONTINUATION OF UNIT 29,PCE 4A BEGINS UNIT
30,PCES 4A-6 PALE GRAY WITH IRREGULAR BROWN PATCHES
OF ALTERATION;
Alteration : MOD
PCES 1A-2B+4A-4E,PCES 4A-6 BROWN PATCHES OF
ALTERATION;
EXTENSIVELY
PCES 3+4F-6,PCE 3 GLASS COMPLETELY ALTERED,PCES
5+6 ALTERED GLASSY MESOSTAS;
Vesicles :
Location: SCATTERED Filling: CARB.UNSPEC,ZEOL
PCES 4A-4F;
Size(mm): Percent: RARE
VUGS;
Phenocrysts: PLAGIOCLASE ( 10%)
Size(mm): 1.0-1.5
PCES 1A-2B;
OLIVINE ( RARE%)
Size(mm): 1-2
PCES 1A-2B OL C0MPLETELY ALTERED;
PLAGIOCLASE ( 15%)
Size(mm): 1-2
PCES 4A-6;
OLIVINE (20-30%)
MICROPHENOS;
CLINOPYROXENE (20-30%)
ID CPX UNCERTAIN;
Replacement: SMECTITE
Minerals Replaced: GLASS
CARBONATE
ZEOLITE
Leg : 59 Top/Bottom Interval(mm): 0/1350 Analyst: Zakariadze, G.
Hole: 447A Sample Midpoint (m) : 273.35
Core: 34 Top of Core Depth (m) : 270.50
Sect: 2 Top of Section Depth(m): 272.00
LITHOLOGY: PLAG-OL-SPINEL BASALT;
PILLOW BASALT;
Piece No. : PCES 1A (0-10), 1B (10-15), 1C (15-31), 1D (32-38),
1E (39-53), 1F (53-56), 1G (57-66), 1H (66-79),
1I (80-93), 2 (95-101), 3 (104-124), 4 (126-135);
Texture : COMPOSITION and TEXTURE SIMILAR TO CORE 34-1,FINE-
GRAINED,PHYRIC WITH ALTERED GLASSY MARGINS (PCES
1E-1G+1I-2);
Structure : 3 PILLOWS ARE TRANSECTED CONSECUTIVELY;
Comments : CONTINUATION OF UNIT 30;
Alteration : MOD
PCES 1A-1D+1H+BOTTOM OF PCE 3+4;
EXTENSIVELY
PCES 1E-1G+1I-TOP OF PCE 3;
Leg : 59 Top/Bottom Interval(mm): 0/1450 Analyst: Zakariadze, G.
Hole: 447A Sample Midpoint (m) : 276.45
Core: 35 Top of Core Depth (m) : 275.00
Sect: 1 Top of Section Depth(m): 275.00
LITHOLOGY: PLAG-OL-SPINEL PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1A (0-3), 1B (3-6), 2A (7-16), 2B (16-26),
2C (26-37), 2D (37-48), 2E (48-56), 2F (57-67),
3 (70-77), 4A (80-95), 4B (95-103), 4C (103-110),
5 (111-118), 6A (120-123), 6B (123-127),
7A (128-131), 7B (132-144);
Texture : INNER PARTS OF PILLOWS 70-80% XTLLINE,SUB-OPHITIC
TO VITROPHYRIC AT MARGINS OF PILLOW,GLASSY MESOSTAS;
Structure : GLASSY RIMS OF PILLOW PARTIALLY BRECCIATED and VEINED
WITH CARB.UNSPEC and ZEOL,ALTERNATING ENRICHMENT OF OL
and PLAG,PILLOW THICKNESS VARIES (30-70CM),PCES 3+5-6B
ARE PILLOW MARGINS;
Comments : CONTINUATION OF UNIT 30;
Alteration : MOD
Phenocrysts: OLIVINE
COMPLETELY ALTERED and ONLY REPRESENTED BY
PSEUDOMORPHS;
CLINOPYROXENE
MICROPHENOS;
PLAGIOCLASE
Replacement: IDDINGSITE
Minerals Replaced: OL
CARBONATE
Minerals Replaced: OL
FERROUS HYDROX MINS
Minerals Replaced: OL
ZEOLITE
Leg : 59 Top/Bottom Interval(mm): 0/1500 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 278.00
Core: 35 Top of Core Depth (m) : 275.00
Sect: 2 Top of Section Depth(m): 276.50
LITHOLOGY: PLAG-OL-SPINEL PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1A (0-12), 1B (12-24), 1C (25-38), 1D (39-49),
1E (48-61), 1F (61-70), 1G (70-81), 1H (81-101),
2A (103-105), 2B (107-113), 2C (114-126),
2D (127-137), 2E (138-144), 2F (145-150);
Texture : FINE-GRAINED,75% XTLLINE,BECOMES VARIOLITIC NEAR
CHILLED MARGINS (PCES 1B+1C+1H-2B+2E-2F);
Structure : TRACE OF RADIAL VEINING WITH CALCITE and ZEOL,PCES
1D+1E XTL SETTLING(?);
Comments : CONTINUATION OF UNIT 30;
Alteration : MOD
INTERVALS 0-20+37-88+110-140CM,INTERVAL 88-100CM
INTERMEDIATE BETWEEN MOD and EXTENSIVE ALTERATION;
EXTENSIVELY
INTERVALS 20-35+100-110+140-150CM;
Phenocrysts: PLAGIOCLASE (TO 15%)
Size(mm): 1-3
EUHEDRAL,PCES 1F+2C-2D PLAG-RICH;
OLIVINE
Size(mm): 1-2
ALTERED,PCE 1F OL-RICH;
Replacement: IDDINGSITE
Size(mm): 1-2
Minerals Replaced: OL
CALCITE
ZEOLITE
Leg : 59 Top/Bottom Interval(mm): 0/1500 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 279.50
Core: 35 Top of Core Depth (m) : 275.00
Sect: 3 Top of Section Depth(m): 278.00
LITHOLOGY: PLAG-OL-SPINEL PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1A (2-14), 1B (14-23), 1C (21-29), 2A (31-39),
2B (39-60), 2C (60-69), 2D (69-76), 2E (76-82),
2F (83-87), 2G (88-104), 2H (105-112),
3 (115-122), 4A (124-129), 4B (130-134),
5A (136-138), 5B (139-149);
Texture : COMPOSITION and TEXTURE SIMILAR TO CORE 35-2,PCES 1A+
1B APHYRIC,SLIGHT BRECCIATION IN PCES 2G-5B,PCES 4A+
4B ARE ALTERED GLASS BRECCIA WITH FRAGMENTS OF
ALTERED GREEN PALAG GLASS (0.5-1.0CM DIAMETER) IN A
WHITE CARB.UNSPEC and ZEOL MATRIX;
Comments : CONTINUATION OF UNIT 30;
Alteration : MOD
PCE 2A+TOP HALF OF PCE 2B INTERMEDIATE BETWEEN MOD
and EXTENSIVE ALTERATION;
EXTENSIVELY
ALL PCES EXCEPT PCES 2A+TOP HALF OF PCE 2B;
Phenocrysts: PLAGIOCLASE
OLIVINE
CONSIDERABLE VARIATION IN PHENO CONTENT WITH EACH
PILLOW UNIT;
Replacement: PALAGONITE
Size(mm): 0.5-1.0
Minerals Replaced: GLASS
CARBONATE
ZEOLITE
Leg : 59 Top/Bottom Interval(mm): 0/1500 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 281.00
Core: 35 Top of Core Depth (m) : 275.00
Sect: 4 Top of Section Depth(m): 279.50
LITHOLOGY: PLAG-OL-SPINEL PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1A (1-12), 1B (12-21), 1C (21-42), 1D (43-51),
1E (51-56), 1F (57-64), 1G (62-67), 1H (66-72),
1I (72-76), 1J (76-80), 1K (81-85), 1L (85-91),
1M (91-93), 1N (93-98), 1O (99-105), 1P (105-107),
1Q (108-128), 1R (129-134), 1S (135-149);
Texture : COMPOSITION and TEXTURE SIMILAR TO CORE 35-2,FINE-
GRAINED,75% XTLLINE,APHANITIC TO VARIOLITIC,PCES
1L-1O SPARSE PHENOS TO APHYRIC,XTL SETTLING IN PCES
1C-1J;
Comments : CONTINUATION OF UNIT 30;
Alteration : EXTENSIVELY
Phenocrysts: PLAGIOCLASE ( 10%)
Size(mm): 1-3
GLOMEROPHYRIC,SLIGHTLY ALTERED;
OLIVINE ( 5-10%)
Size(mm): 1-2
ALTERED TO BROWN SMEC;
Replacement: SMECTITE ( 5-10%)
Size(mm): 1-2
Minerals Replaced: OL
Leg : 59 Top/Bottom Interval(mm): 0/1350 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 282.35
Core: 35 Top of Core Depth (m) : 275.00
Sect: 5 Top of Section Depth(m): 281.00
LITHOLOGY: PLAG-OL-SPINEL PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1A (1-4), 1B (5-8), 1C (9-10), 1D (10-12),
2A (15-31), 2B (31-36), 2C (37-41), 2D (40-47),
3A (50-57), 3B (58-60), 3C (61-63), 3D (64-69),
3E (69-82), 3F (82-100), 3G (100-110), 3H (110-130),
3I (130-135);
Texture : COMPOSITION and TEXTURE SIMILAR TO CORE 35-2,
BRECCIATED TOWARD BASE OF SECTION;
Structure : BRECCIATION BETWEEN INTERVAL 82-117CM,CALCITE and ZEOL
VEINS;
Comments : CONTINUATION OF UNIT 30,PCE 3G BEGINS UNIT 31;
Alteration : EXTENSIVELY
Phenocrysts: PLAGIOCLASE
Size(mm): 5-10
XENOCRYSTS OF ROUNDED (CORRODED OR ABRADED) PLAG;
OLIVINE
Replacement: CALCITE
ZEOLITE
Leg : 59 Top/Bottom Interval(mm): 0/1200 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 283.70
Core: 35 Top of Core Depth (m) : 275.00
Sect: 6 Top of Section Depth(m): 282.50
LITHOLOGY: PLAG-OL-SPINEL PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1A (1-16), 1B (17-41), 1C (42-45), 1D (45-60),
1E (60-70), 1F (70-79), 1G (79-91), 1H (92-100),
1I (101-107), 2 (110-116);
Texture : COMPOSITION and TEXTURE SIMILAR TO CORE 35-2;
Comments : CONTINUATION OF UNIT 31,PCE 2 MARKS END OF CORE;
Alteration : EXTENSIVELY
BOTTOM OF PCE 1A and TOP OF PCE 1B INTERMEDIATE
BETWEEN MOD and EXTENSIVE ALTERATION;
Phenocrysts: PLAGIOCLASE
Size(mm): 5-10
SCATTERED XENOCRYSTS OF ROUNDED (CORRODED OR
ABRADED) PLAG;
Leg : 59 Top/Bottom Interval(mm): 0/1450 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 285.45
Core: 36 Top of Core Depth (m) : 284.00
Sect: 1 Top of Section Depth(m): 284.00
LITHOLOGY: PLAG-OL-SPINEL PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1 (0-19), 2A (21-50), 2B (51-70), 2C (75-86),
2D (86-105), 2E (105-118), 3 (120-125),
4A (126-134), 4B (135-137), 5A (138-140),
5B (140-141);
Texture : COMPOSITION and TEXTURE SIMILAR TO CORE 35-2,PCES
2A-2D PHENO SETTLING;
Structure : INTERVAL 65-95CM PHENO-RICH LAYER;
Comments : CONTINUATION OF UNIT 31;
Alteration : EXTENSIVELY
Phenocrysts: PLAGIOCLASE (TO 10%)
PRESENT AS XENOCRYSTS IN PCES 2A-2E,PCE 2D
CONTAINS XENOCRYSTS NOT IN EQUILIBRIUM OR VERY
ABRADED;
Leg : 59 Top/Bottom Interval(mm): 0/1500 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 287.00
Core: 36 Top of Core Depth (m) : 284.00
Sect: 2 Top of Section Depth(m): 285.50
LITHOLOGY: PLAG-OL-SPINEL PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1 (2-12), 2 (15-21), 3 (23-38), 4 (41-50),
5A (53-61), 5B (52-63), 6 (66-68), 7A (71-78),
7B (78-93), 8A (95-100), 8B (100-111),
8C (110-125), 8D (126-132), 8E (123-129),
8F (138-149);
Texture : COMPOSITION and TEXTURE SIMILAR TO CORE 35-2,FINE-
GRAINED TO GLASSY,APHYRIC TO 10-15%,PCES 3-4+6-7B+
8D;
Structure : VARIATION IN PHENO CONTENT FROM MARGIN TO CENTERS
OF PILLOWS;
Comments : CONTINUATION OF UNIT 31;
Alteration : MOD
INTERVALS 0-28+50-65+102-117CM;
EXTENSIVELY
INTERVALS 28-50+65-102+117-150;
Phenocrysts: PLAGIOCLASE ( 5-10%)
SCATTERED XENOCRYSTS OF ROUNDED ANHEDRAL PLAG;
Leg : 59 Top/Bottom Interval(mm): 0/1400 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 288.40
Core: 36 Top of Core Depth (m) : 284.00
Sect: 3 Top of Section Depth(m): 287.00
LITHOLOGY: PLAG-OL-SPINEL PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1 (1-9), 2A (12-19), 2B (19-30), 2C (31-43),
2D (44-57), 3A (59-72), 3B (72-79), 3C (79-84),
3D (85-99), 4A (101-106), 4B (106-109),
4C (110-111), 4D (112-120), 4E (119-124),
5 (126-139);
Texture : COMPOSITION and TEXTURE SIMILAR TO CORE 35-2,PCE 2A
PILLOW GLASS BRECCIA WITH FRAGMENTS OF GREEN PALAG
and ALTERED GLASS SET IN CALCITE and ZEOL MATRIX,XTL
SETTLING IN PCES 3A-3C,PCES 3A-3D CONTAIN SMALL (TO
4CM DIAMETER) XENOLITHS OF COARSE DOLERITE OR FINE
GABBRO (GRAINSIZE 3-5MM);
Comments : CONTINUATION OF UNIT 31;
Alteration : EXTENSIVELY
Phenocrysts: PLAGIOCLASE
Size(mm): 2-4
XENOCRYSTS OF FRESH OR PARTLY ALTERED PLAG IN PCES
3A-3D;
Replacement: CALCITE
ZEOLITE
Leg : 59 Top/Bottom Interval(mm): 0/1500 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 290.00
Core: 36 Top of Core Depth (m) : 284.00
Sect: 4 Top of Section Depth(m): 288.50
LITHOLOGY: PLAG-OL-SPINEL PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1 (1-19), 2 (16-25), 3A (26-41), 3B (41-54),
4A (56-65), 4B (66-70), 4C (70-74), 5A (76-87),
5B (87-98), 5C (99-105), 5D (106-116), 6A (119-130),
6B (130-134), 7 (137-148);
Texture : COMPOSITION and TEXTURE SIMILAR TO CORE 36-3;
Comments : CONTINUATION OF UNIT 31;
Alteration : EXTENSIVELY
Phenocrysts: PLAGIOCLASE
Size(mm): 1-5
PRESENT AS XENOCRYSTS;
Leg : 59 Top/Bottom Interval(mm): 0/ 450 Analyst: Mattey, D.
Hole: 447A Sample Midpoint (m) : 290.45
Core: 36 Top of Core Depth (m) : 284.00
Sect: 5 Top of Section Depth(m): 290.00
LITHOLOGY: PLAG-OL-SPINEL PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1 (2-17), 2A (20-25), 2B (26-34), 2C (34-38),
2D (35-42), 2E (38-42);
Texture : COMPOSITION and TEXTURE SIMILAR TO CORE 36-4;
Comments : CONTINUATION OF UNIT 31,PCE 2E ENDS CORE;
Alteration : EXTENSIVELY
Phenocrysts: PLAGIOCLASE
PRESENT AS XENOCRYSTS;
Leg : 59 Top/Bottom Interval(mm): 0/ 950 Analyst: Zakariadze, G.
Hole: 447A Sample Midpoint (m) : 293.95
Core: 37 Top of Core Depth (m) : 293.00
Sect: 1 Top of Section Depth(m): 293.00
LITHOLOGY: PLAG-OL-SPINEL PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1 (1-4), 2A (5-18), 2B (19-30), 3A (32-41),
3B (42-55), 3C (52-56), 4 (57-63), 5A (66-77),
5B (77-85), 6 (89-94);
Texture : COMPOSITION and TEXTURE SIMILAR TO CORE 36-2,CENTRAL
PART OF PILLOWS FINE-GRAINED and PHYRIC,SUB-OPHITIC
WITH GLASSY MESOSTAS TOWARD PILLOW MARGINS,PILLOW
GLASSY RIMS (1-2CM);
Structure : PILLOWS DISSECTED WITH CARB.UNSPEC and ZEOL VEINS;
Comments : CONTINUATION OF UNIT 31;
Alteration : MOD
PCES 1-2A+3A-3C+5A-6;
EXTENSIVELY
ALTERATION INCREASES TOWARDS PILLOW MARGINS,PCES
2B+4,GLASS RIMS ALTERED;
Vesicles : Size(mm): 0.5 Percent: RARE
Location: Filling: ZEOL,CARB,SMEC(?)
ID SMEC UNCERTAIN;
Phenocrysts: PLAGIOCLASE
Size(mm): TO 10
XENOCRYSTS;
(10-15%)
Size(mm): 1-3
Replacement: ZEOLITE
CARBONATE
SMECTITE
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