Leg : 81 Top/Bottom Interval(mm): 0/1350 Analyst: Keene, J.
Hole: 554A Sample Midpoint (m) : 134.35
Core: 7 Top of Core Depth (m) : 133.00
Sect: 1 Top of Section Depth(m): 133.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (3-5), 2 (8-15), 3A (18-41), 3B (40-44),
4 (46-54), 5 (56-60), 6 (63-74), 7 (76-83),
8 (85-90), 9 (93-98), 10 (101-113), 11 (115-123),
12 (125-133);
Texture : APHYRIC,PCE 7 HAS SEDIMENT INCLUSION(CALCAREOUS);
Structure : PCES 2+3 HAVE CALCITE & BLACK UNIDENT.MIN-FILLING
VEINS & FRACTURES,PCES 8+9 HAVE VEINS FILLED WITH
MARL & 1CM FRACTURE PARTLY FILLED WITH CALCITE SPAR;
Alteration : MOD
1CM WEATHERED RIM ON FRESH BASALT,1CM THICK
ALTERATION RIM RELATED TO FRACTURES;
Comments : GRAY(10YR 5/1) BASALT,PCE 2 BRECCIATED WITH CLASTS
OF PALAG(1-5MM) & CEMENTED WITH CALCITE,PCE 7 HAS
YELLOW(2.5Y 8/8) SEDIMENT INCLUSION,PCES 3+4 ARE
ALTERED TO PALE BROWN(10YR 6/3),
MICRITIC-REXTLLIZED MARL?-INCORPORATED AS CLAST IN
PCE 4,MARL FILLS VEINS IN PCES 8+9;
Vesicles : Size(mm): 0.5-1 Percent:
PCE 1 HAS EMPTY VESICLES;
Size(mm): 1 Percent:
PCE 2 HAS UNEVENLY DISTRIBUTED VESICLES;
Size(mm): 0.5-2 Percent:
Location: Filling: CLAY.MIN,CALCITE
PCES 3+4 HAVE VESICLES WHICH ARE IRREGULARLY
DISTRIBUTED WITH SOME LINED WITH GREEN CLAY.MINS
& A FEW ARE CALCITE-FILLED;
Size(mm): 0.5-4 Percent:
Location: Filling: CLAY.MIN,CALCITE
PCES 5-7 HAVE SCATTERED VESICLES WITH VERTICAL
ELONGATION,MOSTLY EMPTY WITH SOME FILLED WITH
CLAY.MINS & SPAR CALCITE;
Location: Filling: CALCITE
PCE 10 HAS VERTICALLY ZONED VESICLES SOME FILLED
WITH CALCITE;
Size(mm): Percent: 20
Location: Filling: CALCITE
PCES 11+12 HAVE VESICLES FILLED WITH CLEAR
CALCITE;
Replacement: CALCITE
CALCITE FILLS VESICLES & VEINS & FRACTURES
THROUGHOUT-SPAR & CLEAR IN SOME INSTANCES,CALCITE
MATRIX IN PCE 2;
UNIDENTIFIED
BLACK UNIDENT.MIN FILLS SOME VEINS & FRACTURES;
CLAY MINERALS
GREENISH CLAY.MINS FILL SOME VESICLES IN PCES 3+4;
PALAGONITE
PALAG CLASTS IN PCE 2;
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Keene, J.
Hole: 554A Sample Midpoint (m) : 136.00
Core: 7 Top of Core Depth (m) : 133.00
Sect: 2 Top of Section Depth(m): 134.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (1-19), 2A (20-32), 2B (32-40), 3 (42-48),
4 (51-58), 5A (61-69), 5B (68-78), 6 (81-87),
7 (89-95), 8A (97-105), 8B (106-108), 9 (110-113),
10 (116-124), 11 (125-128), 12 (131-134),
13 (137-141), 14 (145-149);
Texture : APHYRIC;
Structure : PCES 1+2B HAVE CLEAR CALCITE-FILLED FRACTURES,PCES
6-14 HAVE CALCITE & CHALKY CALCITE-FILLED FRACTURES,
PCE 2B HAS 4MM VEIN FILLED WITH SEDIMENT;
Alteration : MOD
PCES 1-3+6-14,PCES 1+2 HAVE 2CM ALTERATION ZONE
NEAR FRACTURES,ALTERATION RIM AROUND SOME PCES
BOUNDED BY FRACTURES IN PCES 6-14;
FRESH
PCES 4-5B;
Comments : GRAY(2.5Y 6/0) APHYRIC BASALT,PCES 1-2A HAVE
LITHIFIED INCLUSIONS OF YELLOW CHALK WITH PALAG
CLASTS-MAY BE A VERY ANGULAR SOFT SEDIMENT CLAST;
Vesicles :
Location: Filling: CALCITE,CLAY.MIN
IN PCES 1-2B SOME VESICLES FILLED WITH CLEAR
CALCITE & SOME LINED WITH GREEN CLAY.MINS;
Size(mm): 15 Percent:
Location: Filling:
Shape : IRREGULAR
PCES 3-5B HAVE IRREGULAR SCATTERED MOSTLY EMPTY
VESICLES WITH FEWER VESICLES AT THE BASE;
Size(mm): TO 5 Percent:
FEW VESICLES IN PCES 6-14;
Replacement: CALCITE
CLEAR CALCITE FILLS SOME FRACTURES & VESICLES IN
PCES 1-2B,CALCITE & CHALKY CALCITE FILLS FRACTURES
IN PCES 6-14;
CLAY MINERALS
GREEN CLAY.MINS LINE SOME VESICLES IN PCES 1-2B;
PALAGONITE
PALAG CLASTS IN PCES 1-2A & PALAG GRAINS IN PCE
2B;
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Keene, J.
Hole: 554A Sample Midpoint (m) : 137.50
Core: 7 Top of Core Depth (m) : 133.00
Sect: 3 Top of Section Depth(m): 136.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (1-10), 2 (13-15), 3 (18-22), 4 (26-29),
5 (32-39), 6 (42-46), 7 (48-54), 8 (56-69),
9 (70-74), 10 (76-85), 11 (87-93), 12 (94-99),
13 (101-106), 14 (107-117), 15 (120-124),
16 (127-130), 17 (133-135), 18 (137-142),
19 (143-147);
Texture : APHYRIC,FRAGMENTS CONTAIN INCLUSIONS OF VERY
VESICULAR PHASE(2-3CM,PUMICE);
Structure : SOME PCES BOUNDED BY FRACTURES;
Alteration : FRESH
PUMICE ALTERED,ALTERATION ZONE ALONG FRACTURES,
LIGHT GRAY BASALT HAS RIM OF DARKER GRAY
ALTERATION;
Comments : GRAY(2.5Y 6/0) BASALT,LIGHT GRAY BASALT HAS RIM OF
DARKER GRAY ALTERATION,PCES 12-14 CONTAIN SUB-
HORIZONTAL STREAKS OF DARKER COLOR;
Vesicles :
Location: Filling: UNIDENT.MIN
FEW VESICLES WITH SOME FILLED WITH BLACK
UNIDENT.MINS,2-3CM HIGHLY VESICULAR INCLUSIONS
(PUMICE) FOUND IN BASALT FRAGMENTS;
Replacement: ZEOLITE
Minerals Replaced: PUMICE
CLAY MINERALS
Minerals Replaced: PUMICE
PUMICE ALTERED;
UNIDENTIFIED
BLACK UNIDENT.MINS FILL SOME VESICLES IN BASALT
FRAGMENTS;
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Keene, J.
Hole: 554A Sample Midpoint (m) : 139.00
Core: 7 Top of Core Depth (m) : 133.00
Sect: 4 Top of Section Depth(m): 137.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (2-7), 2 (10-20), 3A (22-26), 3B (26-40),
3C (40-55), 3D (54-63), 4 (65-71), 5 (73-85),
6A (88-98), 6B (99-105), 6C (105-118), 6D (118-130),
7 (131-134), 8 (136-139), 9 (141-147);
Texture : APHYRIC,PCES 3C-3D ARE ANGULAR FRAGMENTS OF BASALT &
DEVT.GLS(1MM-20MM SIZE),BASE OF FLOW HAS PALAG RIM;
Structure : SOME FRAGMENTED BASALT INFILLED WITH CALCITE,
VOIDS IN PCES 4-9 ARE FILLED WITH CALCITE SPAR
(1 GEOPETAL STRUCTURE IN A VOID) WITH SOME PARTIAL
FILLING OF SOME VOIDS WITH CALCITE,CALCITE VEINS
IN PCES 4-9;
Alteration : FRESH
PCES 1-3C,ALTERED BASALT AT BASE OF PCE 3C;
MOD
PCES 3D-9,PALAG RIM AT BASE OF PCE 4;
Comments : PCE 4 IS GREENISH(5G 6/1) OR DARK BROWN(7.5YR 4/4),
PCES 4-9 ARE CONGLOMERATES WITH PEBBLES BOTH ANGULAR
& ROUNDED & CONSIST OF BASALT(SOMETIMES WITH PALAG
RIM OR PARTIAL RIM) & PALAG CLASTS & BASALT GRAINS
CEMENTED BY CALCITE,PCE 8 HAS WEAKLY DEVELOPED
BEDDING & SIZE SORTING,PCES 3C-3D ANGULAR FRAGMENTS
OF BASALT & DEVT.GLS CEMENTED BY WHITE FINE-GRAINED
CALCITE(HYALOCLASTITE?);
Vesicles : Size(mm): 1-2 Percent:
SCATTERED MOSTLY EMPTY VESICLES;
Location: Filling: CALCITE
CALCITE-FILLED VESICLES IN PCE 4;
Replacement: DEVITRIFIED GLASS
ANGULAR FRAGMENTS IN PCES 3C-3D;
CALCITE
FILLS VESICLES OF PCE 4,CALCITE SPAR FILLS VOIDS
IN PCES 4-9(1 GEOPETAL STRUCTURE IN A VOID),
MATRIX OF PCES 4-9 IS CALCITE WITH SOME CALCITE
VEINS & PARTIALLY FILLING VOIDS;
PALAGONITE
PALAG CLASTS IN PCES 4-9 WITH SOME CONTAINING
PALAG RIMS OR PARTIAL RIMS;
Leg : 81 Top/Bottom Interval(mm): 0/ 500 Analyst: Keene, J.
Hole: 554A Sample Midpoint (m) : 139.50
Core: 7 Top of Core Depth (m) : 133.00
Sect: 5 Top of Section Depth(m): 139.00
LITHOLOGY: SEDIMENT (CONGLOMERATE);
APHYRIC BASALT;
Piece No. : PCES 1 (2-9), 2 (11-20), 3 (22-26), 4 (30-36),
5 (38-47);
Texture : PCES 4-5 APHYRIC BASALT;
Alteration : FRESH
PCES 1-3;
MOD
PCES 4-5;
Comments : PCES 1-3 ARE CONGLOMERATES COMPRISED OF ANGULAR
BASALT PEBBLES & SOME ROUNDED PALAG PEBBLES IN
CALCITE CEMENTED MATRIX OF BASALTIC SAND GRAINS-
SIMILAR TO CORE 7-4;
Vesicles : Size(mm): TO 10 Percent:
Location: Filling: CALCITE
PCES 4-5 HAVE FEW VESICLES-SOME EMPTY & OTHERS TO
10MM FILLED WITH CALCITE;
Replacement: CALCITE
CALCITE CEMENTED MATRIX OF CONGLOMERATE PCES 1-3,
CALCITE FILLS SOME VESICLES IN PCES 4-5;
PALAGONITE
SOME ROUNDED PALAG PEBBLES IN PCES 4-5;
Leg : 81 Top/Bottom Interval(mm): 0/1500 Analyst: Keene, J.
Hole: 554A Sample Midpoint (m) : 144.00
Core: 8 Top of Core Depth (m) : 142.50
Sect: 1 Top of Section Depth(m): 142.50
LITHOLOGY: SEDIMENT (CONGLOMERATE);
APHYRIC BASALT;
VOLCANICLASTIC SANDSTONE;
Piece No. : PCES 1 (1-8), 2A (10-24), 2B (23-30), 2C (30-38),
2D (38-47), 2E (47-59), 2F (56-70), 2G (68-76),
2H (75-87), 2I (87-98), 2J (98-115), 2K (115-128),
2L (126-139), 3 (140-150);
Texture : PCES 2B-2E+2G-3 HAVE APHYRIC BASALT;
Structure : PCES 2D-2E+2G ARE INCLINED CONTACTS WITH UNDERLYING
BASALT,PCE 2J HAS IRREGULAR CALCITE VEIN,PCE 2K HAS
VOLCANICLASTIC SANDSTONE FILLING A FRACTURE IN
BASALT & ALSO HAS CALCITE VEINS;
Alteration : FRESH
PCES 1-2G;
MOD
PCES 2H-3;
Comments : PCE 1 IS CLAST-SUPPORTED CONGLOMERATE WITH CALCITE-
CEMENTED SAND MATRIX WITH CLASTS 5-10MM IN SIZE
ANGULAR TO SUBROUNDED WITH BASALT & WEATHERED
BASALT & PALAG & SAND MATRIX SUBROUNDED,
PCE 2A IS VOLCANICLASTIC SANDSTONE WHICH IS WELL
SORTED WITH NO MATRIX & IS SUBROUNDED TO
ROUNDED & COMPRISED OF BASALT & GLASS & IS CALCITE-
CEMENTED,PCES 2B+2C HAVE GRAY(7.5YR 6/2) BASALT
WHICH MAY BE A BASALT BOULDER IN THE SANDSTONE,PCE
2F IS VOLCANICLASTIC SANDSTONE SIMILAR TO PCE 2A
WITH BEDDING REFLECTING GRAINSIZE,PCE 2K IS CALCITE-
CEMENTED;
Vesicles : Size(mm): 10 Percent:
Location: Filling: CALCITE
Shape : ELONGATED
PCES 2B-2C HAVE ELONGATED VERTICAL VESICLES WITH
SOME EMPTY & OTHERS INFILLED WITH CALCITE;
Size(mm): 5-10 Percent: RARE
PCES 2F-3 VESICLES BECOMING RARE WITH DEPTH;
Size(mm): 30-40 Percent:
PCE 2I HAS VESICULAR INCLUSIONS IN BASALT;
Size(mm): 20-50 Percent:
Location: Filling: SMEC
PCES 2L+3 HAVE VESICULAR INCLUSIONS(PUMICE) WITH
SOME VESICLES FILLED WITH YELLOW & GREEN SMEC;
Replacement: CALCITE
CALCITE CEMENTED MATRIX OF CONGLOMERATE PCE 1,PCE
2A IS CALCITE-CEMENTED,PCES 2B-2C HAVE SOME
VESICLES FILLED WITH CALCITE,PCE 2J HAS IRREGULAR
CALCITE VEIN,PCE 2K HAS CALCITE VEINS & IS CALCITE
-CEMENTED;
PALAGONITE
PCE 1 HAS PALAG CLASTS & PALAG SAND;
SMECTITE
YELLOW & GREEN SMEC FILLS SOME VESICLES OF PUMICE
IN PCES 2L-3;
Leg : 81 Top/Bottom Interval(mm): 0/1450 Analyst: Keene, J.
Hole: 554A Sample Midpoint (m) : 145.45
Core: 8 Top of Core Depth (m) : 142.50
Sect: 2 Top of Section Depth(m): 144.00
LITHOLOGY: SEDIMENT (CONGLOMERATE);
APHYRIC BASALT;
VOLCANICLASTIC SANDSTONE;
Piece No. : PCES 1 (1-7), 2 (10-14), 3A (17-32), 3B (31-39),
3C (39-46), 4A (48-68), 4B (68-73), 4C (73-75),
5 (79-86), 6 (88-94), 7 (86-102), 8 (104-111),
9 (113-125), 10 (126-139), 11 (141-145);
Texture : PCES 1-2 ARE APHYRIC BASALT SIMILAR TO CORE 8-1;
Structure : PCES 1-2 HAVE IRREGULAR CALCITE & ZEOL VEINS,CALCITE
FILLS OR PARTIALLY FILLS VOIDS BETWEEN PEBBLES IN
PCES 4-11;
Alteration : MOD
PCES 1-2,BASALT ALTERED;
FRESH
PCES 3A-11;
Comments : PCE 3 IS VOLCANICLASTIC SANDSTONE WHICH IS COMPRISED
OF WELL-SORTED SUBANGULAR TO ROUNDED CLASTS OF
BASALT WITH ALTERED GLASS & PALAG & IS CALCITE-
CEMENTED WITH VERY COARSE SAND WITH GRANULES & MAY
BE A STEEPLY INCLINED CONTACT WITH BASALT(MAY BE A
BASALT BOULDER IN THE SANDSTONE),PCE 4 IS MATRIX-
SUPPORTED CONGLOMERATE WITH MATRIX OF COARSE SAND(AS
IN SANDSTONE ABOVE) & CLASTS OF PEBBLE & BOULDER
SIZE WHERE SOME PEBBLES ARE BASALTIC & OTHERS ARE
BASALT WITH A PALAG RIM(OR PARTIAL RIM)-ANGULAR TO
SUBROUNDED PEBBLES WITH CALCITE CEMENT-POORLY SORTED
PCES 5-11 ARE CLAST-SUPPORTED CONGLOMERATES WITH NO
MATRIX BUT IS CEMENTED WITH CALCITE & THE PEBBLES
ARE SIMILAR TO PCE 4 CONGLOMERATE-BIMODAL PEBBLE
SIZE(5-10+20-50MM SIZES) WITH SHAPES OF PEBBLES VERY
ANGULAR TO ROUNDED WITH INDENTED SHAPE OF SOME
PEBBLES DUE TO VESICULARITY;
Vesicles :
Location: Filling: CALCITE,ZEOL
VERY VESICULAR BASALT WITH VESICLES FILLED WITH
CALCITE OR ZEOL;
Replacement: CALCITE
IRREGULAR CALCITE VEIN IN PCES 1-2,PCES 1-2 HAVE
SOME VESICLES FILLED WITH CALCITE,PCES 3-11 ARE
CALCITE-CEMENTED,PCE 4 HAS CALCITE FILLING VOIDS
BETWEEN PEBBLES,PCES 5-11 HAVE SOME VOIDS ONLY
PARTIALLY FILLED BY CALCITE;
ZEOLITE
ZEOL FILLS SOME VESICLES IN PCES 1-2;
PALAGONITE
PALAG RIM OR PARTIAL RIM ON PCE 4,PALAG CLASTS IN
PCE 3;
UNIDENTIFIED
Minerals Replaced: GLASS
ALT.GLS CLASTS IN PCE 3;
Leg : 81 Top/Bottom Interval(mm): 0/ 400 Analyst: Keene, J.
Hole: 554A Sample Midpoint (m) : 145.90
Core: 8 Top of Core Depth (m) : 142.50
Sect: 3 Top of Section Depth(m): 145.50
LITHOLOGY: SEDIMENT (CONGLOMERATE);
Leg : 81 Top/Bottom Interval(mm): 0/ 400 Analyst: Keene, J.
Hole: 554A Sample Midpoint (m) : 145.90
Core: 8 Top of Core Depth (m) : 142.50
Sect: 3 Top of Section Depth(m): 145.50
LITHOLOGY: APHYRIC BASALT;
Leg : 81 Top/Bottom Interval(mm): 0/ 400 Analyst: Keene, J.
Hole: 554A Sample Midpoint (m) : 145.90
Core: 8 Top of Core Depth (m) : 142.50
Sect: 3 Top of Section Depth(m): 145.50
LITHOLOGY: VOLCANICLASTIC SANDSTONE;
Piece No. : PCES 1A (2-7), 1B (8-12), 2 (14-19), 3 (23-31),
4 (36-39);
Comments : SAME CONGLOMERATES AS THOSE FOUND IN CORE 8-2;
Leg : 81 Top/Bottom Interval(mm): 0/1150 Analyst: Keene, J.
Hole: 554A Sample Midpoint (m) : 153.15
Core: 9 Top of Core Depth (m) : 152.00
Sect: 1 Top of Section Depth(m): 152.00
LITHOLOGY: SEDIMENT (CONGLOMERATE);
APHYRIC BASALT;
Piece No. : PCES 1 (1-9), 2 (11-24), 3 (25-30), 4 (32-45),
5 (45-54), 6 (55-73), 7A (76-87), 7B (87-90),
8 (92-101), 9 (103-114);
Texture : PCE 2 HAS 3 PCES OF APHYRIC BASALT WITH 2 OF THE
PCES HAVING A PALAG RIM,PCES 7A-9 APHYRIC BASALT;
Structure : PCES 7A-9 HAVE FRACTURES FILLED WITH CALCITE,
CALCITE FILLS VOIDS BETWEEN PEBBLES IN PCE 1;
Alteration : FRESH
PCES 1-6,PCE 2 BASALT IS ALTERED;
MOD
PCES 7A-9 HAVE ALTERED BASALT;
Comments : PCE 1 IS MATRIX-SUPPORTED CONGLOMERATE WITH MATRIX
OF COARSE SAND(GLASS & BASALTIC FRAGMENTS) WITH
CLASTS PALAGONITIZED & ALTERED WITH PEBBLES OR
GRANULES BASALTIC-ANGULAR TO SUBROUNDED SAND &
PEBBLES-CALCITE CEMENTED,PCE 2 ALTERED BASALT IS
PINKISH-GRAY(7.5YR 6/2) WITH PALAG RIM GREENISH TO
DARK BROWN(5G 6/1 TO 7.5YR 4/4),PCES 3-6 ARE
CONGLOMERATES WITH ANGULAR BASALTIC ROCK FRAGMENTS
(PEBBLE SIZE) WITH SOME HAVING PALAG RIM IN A SANDY
MATRIX-SAND IS MADE UP OF GLASS OR BASALTIC
FRAGMENTS WHICH ARE ROUNDED OR SUBANGULAR & ARE
CALCITE-CEMENTED;
Vesicles : A FEW VERY SMALL VESICLES ARE FOUND IN PCES 7A-9;
Replacement: CALCITE
CALCITE CEMENTS PCES 1+3-6,FRACTURES FILLED WITH
CALCITE IN PCES 7A-9,CALCITE FILLS VOIDS IN PCE 1;
PALAGONITE
PALAG CLASTS IN PCE 1,PALAG RIM ON 2 PCES OF PCE
2 & ON SOME FRAGMENTS OF PCES 3-6;
Leg : 81 Top/Bottom Interval(mm): 0/ 700 Analyst: Keene, J.
Hole: 554A Sample Midpoint (m) : 162.20
Core: 10 Top of Core Depth (m) : 161.50
Sect: 1 Top of Section Depth(m): 161.50
LITHOLOGY: APHYRIC BASALT;
SEDIMENT (CONGLOMERATE);
Piece No. : PCES 1 (1-3), 2 (8-12), 3A (14-24), 3B (25-37),
4 (33-41), 5 (43-51), 6 (53-59), 7 (61-70);
Texture : PCES 1+3A-7 ARE APHYRIC BASALT;
Structure : PCES 3A-7 THERE ARE VERTICAL & HORIZONTAL 2MM WIDE
FRACTURES & IRREGULAR OPENINGS FILLED WITH CALCITE;
Alteration : MOD
PCES 1+3A-7,BASALT ALTERED,PCE 6 HAS ALTERATION
RIM,ALTERATION MARGIN FOLLOWS FRACTURES IN PCES
3-7;
FRESH
PCE 2 WITH ALTERED GRANULE PEBBLES OF PALAG &
BASALT;
Comments : PCE 2 IS CONGLOMERATE WITH NO MATRIX BUT IS CLAST
SUPPORTED WITH CEMENT OF CALCITE & ZEOL WITH
POROSITY & HAS ROUNDED ALTERED GRANULE PEBBLES
(2-7MM) OF PALAG & BASALT;
Vesicles : Size(mm): Percent: 0
PCE 1,VERY FEW VESICLES IN PCES 3A-7;
Replacement: CALCITE
CALCITE CEMENTS PCE 2 CONGLOMERATE,CALCITE FILLS
FRACTURES & IRREGULAR OPENINGS IN PCES 3A-7;
PALAGONITE
PALAG PEBBLES IN PCE 2;
ZEOLITE
ZEOL CEMENTS PCE 2 CONGLOMERATE;
Leg : 81 Top/Bottom Interval(mm): 0/ 100 Analyst: Keene, J.
Hole: 554A Sample Midpoint (m) : 171.10
Core: 11 Top of Core Depth (m) : 171.00
Sect: 1 Top of Section Depth(m): 171.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 1 (1-10);
Texture : APHYRIC,SIMILAR TO CORE 10-1;
Structure : IRREGULAR FRACTURES(0.5MM) FILLED WITH CALCITE;
Alteration : MOD
Vesicles : Size(mm): Percent: 0
Replacement: CALCITE
CALCITE FILLS IRREGULAR FRACTURES;
Leg : 81 Top/Bottom Interval(mm): 0/ 150 Analyst: Keene, J.
Hole: 554A Sample Midpoint (m) : 180.65
Core: 12 Top of Core Depth (m) : 180.50
Sect: 1 Top of Section Depth(m): 180.50
LITHOLOGY: APHYRIC BASALT;
SEDIMENT (CONGLOMERATE);
Piece No. : PCES 1A (1-3), 1B (5-10), 1C (10-14);
Texture : PCE 1A IS APHYRIC BASALT SIMILAR TO CORE 11-1,PCES
1B+1C HAVE PALAG RIMS;
Alteration : MOD
PCES 1B-1C HAVE ALTERED BASALT;
Comments : PCES 1B-1C HAVE HYALOCLASTITE RIM OF FRAGMENTED
PALAG(CALCITE & ZEOL CEMENT WITH A LOT OF OPEN
PORES) ON ALTERED BASALT;
Vesicles : Size(mm): Percent: 0
PCE 1A;
Replacement: CALCITE
CALCITE CEMENTS PCES 1B-1C;
ZEOLITE
ZEOL CEMENTS PCES 1B-1C;
PALAGONITE
5MM PALAG RIM ON PCES 1B-1C;
Leg : 81 Top/Bottom Interval(mm): 0/ 100 Analyst: Keene, J.
Hole: 554A Sample Midpoint (m) : 190.10
Core: 13 Top of Core Depth (m) : 190.00
Sect: 1 Top of Section Depth(m): 190.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 1 (0-7);
Texture : APHYRIC BASALT,SIMILAR TO CORE 12-1;
Structure : FRACTURES FILLED WITH CALCITE & BLACK SMEC;
Alteration : MOD
ALTERED BASALT SIMILAR TO CORE 12-1;
Replacement: CALCITE
SMECTITE
CALCITE & BLACK SMEC FILL FRACTURES IN PCE 1;
Leg : 81 Top/Bottom Interval(mm): 0/1000 Analyst: Keene, J.
Hole: 554A Sample Midpoint (m) : 200.50
Core: 14 Top of Core Depth (m) : 199.50
Sect: 1 Top of Section Depth(m): 199.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (1-10), 2 (13-22), 3 (24-27), 4 (29-40),
5 (42-52), 6 (54-62), 7 (63-74), 8A (76-84),
8B (83-90), 9 (92-98);
Texture : APHYRIC;
Structure : PCE 1 HAS FRACTURES FILLED WITH CALCITE,PCES 2-9
HAVE COMMON IRREGULAR FRACTURES & ARE FILLED WITH
GREEN SMEC(?) & CALCITE;
Alteration : MOD
TOP 5CM OF PCE 1 PARTLY ALTERED GRADING TO FRESHER
BASALT;
FRESH
PCES 2-9 IS RELATIVELY FRESH BASALT WITH
ALTERATION RIMS ALONG FRACTURES;
Vesicles : Size(mm): Percent: RARE
PCE 1 HAS VERY FEW SMALL & EMPTY VESICLES,PCES 2-9
HAVE RARE VESICLES;
Replacement: CALCITE
SMECTITE
CALCITE FILLS FRACTURES IN PCE 1,CALCITE & GREEN
SMEC(?) FILL IRREGULAR FRACTURES IN PCES 2-9;
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