Leg : 82 Top/Bottom Interval(mm): 0/ 200 Analyst: Brannon, J.
Hole: 562 Sample Midpoint (m) : 3.33
Core: H 1 Top of Core Depth (m) : 0.00
Sect: CC Top of Section Depth(m): 3.23
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (2-9), 2 (12-19);
Texture : APHYRIC,VARIOLITIC,FINE-GRAINED,BLACK BASALT GLASS
ON PCE 1 WHICH GRADES INTO A VARIOLITIC ZONE & THERE
IS A CRUST OF SEDIMENT ON THE GLASS RIND WHICH
CONTAIN 1-2MM DEVT.GLS SHARDS;
Alteration : MOD
DEVT.GLS SHARDS IN PCE 1,RELICT OL MICROPHENOS;
Comments : BASALT IS GRAY(7.5YR, N4/0),VARIOLES ARE BROWN
(10YR 5/3),GLASS IS BLACK;
Vesicles : Size(mm): Percent: 10
VESICLE PERCENTAGE VALID ONLY IN CHILLED AREAS;
Phenocrysts: PLAGIOCLASE ( <1%)
Size(mm): 2-10
PLAG ANHEDRAL;
OLIVINE
Size(mm): <1
RELICT OL SUBHEDRAL,MICROPHENOS;
Replacement:
Minerals Replaced: GLASS
DEVT.GLS;
Leg : 82 Top/Bottom Interval(mm): 0/1500 Analyst: Drake, N.
Hole: 562 Sample Midpoint (m) : 242.50
Core: 1 Top of Core Depth (m) : 241.00
Sect: 1 Top of Section Depth(m): 241.00
LITHOLOGY: PLAG MOD PHYRIC BASALT;
PILLOW BASALT;
LIMESTONE;
Piece No. : PCES 1A (0-8), 1B (8-20), 1C (20-23), 1D (23-29),
2 (31-37), 3 (39-46), 4 (47-54), 5 (56-63),
6A (65-67), 6B (67-89), 6C (89-100), 6D (100-106),
6E (107-128), 7A (130-142), 7B (142-150);
Texture : MOD PHYRIC,FINE-GRAINED,GLASS IN PCES 2+4-6A;
Structure : PILLOW BASALT,VEINS FILLED WITH CALCITE/LIMESTONE;
Alteration : MOD
PLAG PHENOS ALTERED,ALTERATION ALONG EDGES OF
CLASTS;
Comments : DARK GRAY(2.5Y N4/0) IN FRESHER PARTS & GRAYISH-
BROWN(2.5Y 5/2) IN ALTERED AREAS,PCES 2+4-5 ARE
BLACK GLASS CLASTS IN LIMESTONE MATRIX(DARK BROWN
ALTERATION AROUND EDGES);
Vesicles : Size(mm): <1 Percent: <1
Location: Filling: CLAY.MINS
Shape : ROUND,IRREG
VESICLES FILLED WITH LIGHT GREEN CLAY.MINS(?);
Phenocrysts: PLAGIOCLASE ( 2-3%)
Size(mm): 3-10
PLAG PHENOS ALTERED TO GRAYISH-BROWN;
Replacement: CALCITE
FILLS SOME VESICLES;
CLAY MINERALS
LIGHT GREEN CLAY.MINS(?) FILL SOME VESICLES;
CLAY MINERALS
Minerals Replaced: GLASS
ALT.GLAS TO CLAY.MINS(?) ALONG EDGES OF GLASS
CLASTS;
Leg : 82 Top/Bottom Interval(mm): 0/1500 Analyst: Drake, N.
Hole: 562 Sample Midpoint (m) : 244.00
Core: 1 Top of Core Depth (m) : 241.00
Sect: 2 Top of Section Depth(m): 242.50
LITHOLOGY: PLAG SPARSELY TO MOD PHYRIC BASALT;
PILLOW BASALT;
LIMESTONE;
Piece No. : PCES 1A (1-5), 1B (5-7), 1C (7-12), 1D (12-14),
1E (15-19), 2A (20-24), 2B (24-35), 2C (35-52),
2D (51-59), 2E (59-65), 3A (67-69), 3B (67-70),
3C (70-73), 4A (76-80), 4B (80-95), 5A (97-101),
5B (101-109), 6A (112-124), 6B (125-133),
7 (133-140), 9A (143-147), 9B (147-149);
Texture : SPARSELY TO MOD PHYRIC;
Structure : PILLOW BASALT;
Alteration : MOD
PCES 1A-2D+7;
FRESH
PCES 2E-6B+8A-8B;
Comments : BASALT IS GRAY(2.5Y N6/0),PCES 1A-2A+5A-5B ARE BLACK
GLASS CLASTS IN LIMESTONE MATRIX SIMILAR TO THOSE IN
CORE 1-1,PCES 7-8B ARE MOSTLY LIMESTONE WITH HEAVILY
ALT.GLAS CLASTS;
Vesicles : Size(mm): Percent: <1
Location: Filling: CLAY.MINS
Shape : ROUND,IRREG
VESICLES FILLED WITH DARK TO LIGHT GREEN CLAY.MINS
(?);
Phenocrysts: PLAGIOCLASE ( 1-2%)
Size(mm): 2-5
Replacement: CLAY MINERALS
DARK TO LIGHT GREEN CLAY.MINS FILL VESICLES(ID
CLAY.MINS UNCERTAIN);
UNIDENTIFIED
Minerals Replaced: GLASS
HEAVILY ALT.GLAS CLASTS IN PCES 7-8B;
Leg : 82 Top/Bottom Interval(mm): 0/1500 Analyst: Brannon, J.
Hole: 562 Sample Midpoint (m) : 245.50
Core: 1 Top of Core Depth (m) : 241.00
Sect: 3 Top of Section Depth(m): 244.00
LITHOLOGY: PLAG MOD PHYRIC BASALT;
PILLOW BASALT;
LIMESTONE;
Piece No. : PCES 1 (1-18), 2 (20-24), 3A (27-34), 3B (35-46),
3C (45-55), 3D (55-73), 3E (72-74), 3F (74-80),
3G (80-86), 3H (87-94), 3I (94-100), 4A (103-106),
4B (105-112), 5A (114-118), 5B (118-122),
6 (124-130), 7 (132-138), 8A (141-146),
8B (146-150);
Texture : MOD PHYRIC,FINE-TO-MEDIUM-GRAINED,GLASS ON PCES
1+3F+3G+8B,VARIOLITIC ZONES;
Structure : PILLOW BASALT,FRACTURES;
Alteration : FRESH
PCES 1-3E+3H-5B+7,MN.OXIDE FOUND IN PCES 5A-5B;
FRESH TO MOD
PCES 3F-3G+8A-8B,FRESH INTERIORS, MODERATELY
ALTERED ALONG FRACTURES AND VARIOLITIC ZONES;
MOD
PCE 6;
Comments : DARK GRAY BASALT(7.5YR N4/0),BROWN BASALT(10YR 5/3)
ALONG FRACTURES,PCES 5A+5B LIMESTONE;
Vesicles : Size(mm): <1 Percent: <1
Location: Filling: TALC,CHLOR
VESICLES FILLED WITH WHITE TALC & GREEN CHLOR;
Phenocrysts: PLAGIOCLASE ( 2-3%)
Size(mm): 1-10
PLAG PHENOS ANHEDRAL(RESORBED);
Replacement: TALC
CHLORITE
WHITE TALC & GREEN CHLOR FILL VESICLES;
MANGANESE OXIDE
MN.OXIDE FOUND IN PCES 5A+5B(DENDRITIC);
Leg : 82 Top/Bottom Interval(mm): 0/ 100 Analyst: Brannon, J.
Hole: 562 Sample Midpoint (m) : 245.60
Core: 1 Top of Core Depth (m) : 241.00
Sect: 4 Top of Section Depth(m): 245.50
LITHOLOGY: SEDIMENT;
LIMESTONE;
Piece No. : PCE 1 (2-8);
Leg : 82 Top/Bottom Interval(mm): 100/ 400 Analyst: Brannon, J.
Hole: 562 Sample Midpoint (m) : 245.90
Core: 1 Top of Core Depth (m) : 241.00
Sect: 4 Top of Section Depth(m): 245.60
LITHOLOGY: PLAG MOD PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 2A (12-15), 2B (16-23), 3A (26-33), 3B (33-49);
Texture : MOD PHYRIC,SAME AS CORE 1-3;
Phenocrysts: PLAGIOCLASE ( 2-3%)
Size(mm): 1-10
PLAG PHENOS ANHEDRAL(RESORBED);
Leg : 82 Top/Bottom Interval(mm): 0/1260 Analyst: Christie, D.M.
Hole: 562 Sample Midpoint (m) : 251.26
Core: 2 Top of Core Depth (m) : 250.00
Sect: 1 Top of Section Depth(m): 250.00
LITHOLOGY: PLAG-OL MOD PHYRIC BASALT;
PILLOW BASALT;
LIMESTONE;
Piece No. : PCES 1A (1-17), 1B (17-26), 1C (26-33), 2 (34-48),
3A (40-56), 3B (54-65), 3C (63-74), 3D (74-94),
3E (89-100), 3F (99-116), 3G (113-126);
Texture : MOD PHYRIC,FINE-GRAINED;
Structure : PILLOW BASALT,FRACTURES,MINOR CALCITE VEINLETS IN
PCES 1B-3D,LIMESTONE VEINS IN PCES 3E-3G;
Alteration : FRESH TO MOD
PCES 1-2 & INTERVAL 95-126CM;
FRESH
PCES 3A-3E;
Comments : DARK GRAY BASALT(7.5YR N4/0),PCES 3E-3G ARE LIGHT
GRAY BASALT(5Y 7/1);
Vesicles : Size(mm): <1 Percent:
Location: Filling: CLAY.MIN
Shape : ROUND
INTERVAL 0-10CM DARK CLAY.MIN-FILLED VESICLES
DECREASE DOWNWARD;
Phenocrysts: PLAGIOCLASE ( 1-5%)
Size(mm): TO 10
PLAG PRISMS & ROUNDED(?) GLOMEROCRYSTS(GENERALLY
2-3%,2-5MM),LATHS TO 1MM & WEATHERED TO BROWN;
OLIVINE ( RARE%)
Size(mm): TO 2
OL PHENOS ALTERED;
Replacement: CLAY MINERALS
DARK CLAY.MINS FILL SOME VESICLES;
CALCITE
MINOR CALCITE VEINLETS IN PCES 1B-2D;
Leg : 82 Top/Bottom Interval(mm): 1260/1500 Analyst: Christie, D.M.
Hole: 562 Sample Midpoint (m) : 251.50
Core: 2 Top of Core Depth (m) : 250.00
Sect: 1 Top of Section Depth(m): 251.26
LITHOLOGY: APHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 3G (126-128), 4 (131-138), 5 (141-146);
Texture : APHYRIC,APHANITIC,VARIOLITIC,GLASS IN PCES 4+5;
Structure : PILLOW MARGINS,GLASS HIGHLY FRACTURED;
Alteration : FRESH TO MOD
SLIGHT ALTERATION OF GLASS TO PALAG ALONG CRACKS;
Comments : DARK GRAY BASALT;
Vesicles : SPARSELY VESICULAR;
Replacement: PALAGONITE
Minerals Replaced: GLASS
SLIGHTLY ALT.GLAS ALONG CRACKS;
Leg : 82 Top/Bottom Interval(mm): 0/1500 Analyst: Christie, D.M.
Hole: 562 Sample Midpoint (m) : 253.00
Core: 2 Top of Core Depth (m) : 250.00
Sect: 2 Top of Section Depth(m): 251.50
LITHOLOGY: PLAG SPARSELY PHYRIC BASALT;
PILLOW BASALT;
LIMESTONE;
BRECCIA;
Piece No. : PCES 1 (0-6), 2 (7-10), 3 (12-21), 4 (23-27),
5 (30-35), 6 (37-43), 7 (44-48), 8A (49-57),
8B (57-65), 8C (65-78), 8D (78-86), 9 (88-94),
10 (95-100), 11 (102-108), 12 (110-113),
13 (115-124), 14 (125-130), 15 (133-138),
16 (140-150);
Texture : MOD PHYRIC,APHANITIC,PCES 7-15 VARIOLITIC;
Structure : PILLOW BASALT,FRACTURES,LIMESTONE VEINS IN PCES
4-6+8C-8D+11;
Alteration : FRESH
PCES 1-8B & TOP 8CM OF PCE 8C;
MOD
LOWER 5CM OF PCE 8C & PCES 8D-16;
Comments : APHANITIC BASALT IS VERY DARK GRAY(7.5YR N3/0 TO
7.5YR N4/0),GLASS IS BLACK,BASALT ALONG FRACTURES IS
ALTERED TO BROWN MOTTLED GRAY(10YR 5/3),INTERPILLOW
BRECCIA IN INTERVALS 22-40+70-80+102-109CM;
Vesicles : Size(mm): <1 Percent:
Location: Filling: CLAY.MIN
Shape : ROUND
VESICLES FILLED WITH DARK OR BLUISH-GRAY
CLAY.MINS,SPARSE VESICLES NEAR TOPS OF PILLOWS;
Phenocrysts: PLAGIOCLASE ( 2-3%)
Size(mm): 2-10
ROUNDED(?),GLOMEROCRYSTS,PRISMS;
Replacement: UNIDENTIFIED
Minerals Replaced: GLASS
ALT.GLAS ALONG FRACTURES;
CLAY MINERALS
DARK OR BLUISH-GREEN CLAY.MINS FILL SOME VESICLES;
Leg : 82 Top/Bottom Interval(mm): 0/1500 Analyst: Christie, D.M.
Hole: 562 Sample Midpoint (m) : 254.50
Core: 2 Top of Core Depth (m) : 250.00
Sect: 3 Top of Section Depth(m): 253.00
LITHOLOGY: PLAG MOD PHYRIC BASALT;
PILLOW BASALT;
LIMESTONE;
Piece No. : PCES 1A (0-11), 1B (11-21), 2A (22-30), 2B (28-35),
3A (36-40), 3B (38-46), 4A (47-51), 4B (50-60),
4C (60-71), 4D (72-80), 4E (79-82), 4F (80-86),
5 (87-91), 6A (93-100), 6B (95-101), 7A (102-115),
7B (115-130), 7C (129-145), 8 (145-150);
Texture : MOD PHYRIC,PCE 1 FINE-GRAINED,PCES 1B-7A APHANITIC &
HAVE VARIOLITIC ZONES(TO 5CM THICK);
Structure : PILLOW BASALT;
Alteration : FRESH
INTERVALS 0-17+132-150CM;
FRESH TO MOD
INTERVAL 17-132CM,VARIOLITIC ZONES ARE ALTERED;
Comments : VARIOLITIC ZONES ALTERED TO LIGHT YELLOWISH-BROWN
(10YR 6/4),PCES 4E+4F ARE MADE UP OF LIMESTONE WITH
SOME LAMINAE CONTAINING SAND-SIZED ANGULAR BASALT
GRAINS;
Vesicles : Size(mm): <1 Percent:
Location: Filling: CLAY.MIN
Shape : ROUND
SPARSELY VESICULAR NEAR PILLOW TOPS,VESICLES ARE
EITHER EMPTY OR FILLED BY WHITE EXPANDING
UNIDENT CLAY.MINS;
Replacement: CLAY MINERALS
UNIDENT EXPANDING WHITE CLAY.MINS FILL SOME
VESICLES;
Leg : 82 Top/Bottom Interval(mm): 0/1400 Analyst: Rideout, M.
Hole: 562 Sample Midpoint (m) : 255.90
Core: 2 Top of Core Depth (m) : 250.00
Sect: 4 Top of Section Depth(m): 254.50
LITHOLOGY: PLAG SPARSELY PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1 (1-3), 2A (5-25), 2B (25-35), 2C (35-43),
2D (39-60), 2E (60-80), 3A (82-85), 3B (88-100),
3C (100-113), 4 (115-119), 5A (120-125),
5B (125-130), 5C (130-140);
Texture : SPARSELY PHYRIC,VARIOLITIC,PCES 3C-5C GRADE FROM
GLASS THRU APHANITIC BASALT THRU VARIOLITIC ZONE TO
SPARSELY PHYRIC BASALT;
Structure : PILLOW BASALT,FRACTURES,CALCITE VEINS;
Alteration : FRESH TO MOD
ALTERATION ALONG FRACTURES & ADJACENT TO VEINS;
Comments : DARK GRAY(7.5YR N5/0) BASALT,ALTERATION ZONES ALONG
FRACTURES & VEINS ARE TINGED YELLOWISH-BROWN
(10YR 5/6),APHANITIC BASALT IS VERY DARK GRAY
(10YR N3/0),VARIOLITIC ZONE IS BROWNISH-YELLOW
(10YR 6/6);
Vesicles : Size(mm): 1-1.5 Percent:
Location: Filling: CLAY.MINS
Shape : ROUND
VESICLES FILLED WITH DARK BLUISH-GREEN CLAY.MINS;
Phenocrysts: PLAGIOCLASE
Size(mm): 2-7
PHENOS ARE NEEDLE-LIKE AGGREGATES,SOME LARGER
ROUNDED PRISMS &/OR GLOMEROCRYSTS;
Replacement: CLAY MINERALS
DARK BLUISH-GREEN CLAY.MINS FILL VESICLES;
CALCITE
CALCITE VEINS;
Leg : 82 Top/Bottom Interval(mm): 0/1150 Analyst: Rideout, M.
Hole: 562 Sample Midpoint (m) : 257.15
Core: 2 Top of Core Depth (m) : 250.00
Sect: 5 Top of Section Depth(m): 256.00
LITHOLOGY: PLAG SPARSELY PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1A (1-15), 1B (15-20), 1C (20-26), 1D (30-35),
2A (38-45), 2B (45-52), 3 (54-60), 4A (62-70),
4B (68-75), 4C (75-85), 5 (88-90), 6 (93-100),
7 (102-107), 8 (108-112);
Texture : SPARSELY PHYRIC,VARIOLITIC ZONES;
Structure : PILLOW BASALT,FRACTURES & CALCITE VEINLETS;
Alteration : FRESH TO MOD
ALTERATION PRESENT ALONG FRACTURES & ADJACENT TO
VEINLETS;
Comments : GRAY BASALT(7.5YR N5/0),ALTERATION ZONES ALONG
FRACTURES & VEINLETS ARE TINGED YELLOWISH-BROWN
(10YR 5/6),VARIOLITIC ZONES GRADE IN COLOR FROM
BROWNISH-YELLOW TO GRAY(10YR 6/6 TO 7.5YR N5/0);
Vesicles : Size(mm): 1-1.5 Percent:
Location: Filling: CLAY.MINS
Shape : ROUND
VESICLES FILLED WITH DARK BLUISH-GREEN OR
BROWNISH-YELLOW CLAY.INS;
Phenocrysts: PLAGIOCLASE
Size(mm): 2-7
PHENOS ARE NEEDLE-LIKE AGGREGATES,SOME LARGER
ROUNDED PRISMS &/OR GLOMEROCRYSTS;
Replacement: CLAY MINERALS
DARK BLUISH-GREEN OR BROWNISH-YELLOW CLAY.MINS
FILL VESICLES;
CALCITE
CALCITE VEINLETS;
Leg : 82 Top/Bottom Interval(mm): 0/1500 Analyst: Christie, D.M.
Hole: 562 Sample Midpoint (m) : 260.50
Core: 3 Top of Core Depth (m) : 259.00
Sect: 1 Top of Section Depth(m): 259.00
LITHOLOGY: PLAG SPARSELY PHYRIC BASALT;
PILLOW BASALT;
LIMESTONE;
Piece No. : PCES 1A (0-15), 1B (12-26), 1C (25-37), 1D (35-55),
1E (55-60), 2 (60-70), 3A (70-76), 3B (75-87),
3C (87-93), 3D (93-100), 3E (100-105), 4 (105-110),
5A (111-119), 5B (119-124), 6 (125-129),
7A (130-140), 7B (139-145), 7C (144-150);
Texture : SPARSELY PHYRIC,FINE-GRAINED PILLOW INTERIORS,PCES
1D-2+3B ARE VARIOLITIC WITH GLASS PILLOW MARGIN
MATERIAL,SIMILAR TO CORES 2-2 THRU 2-5;
Structure : PILLOW BASALT,CALCITE VEINLETS IN PCES 1E+4-5B,PCES
4-5B HAVE CAVITIES;
Alteration : MOD
Comments : PCE 6 IS LIMESTONE;
Phenocrysts: PLAGIOCLASE
Replacement: CALCITE
CALCITE VEINLETS;
Leg : 82 Top/Bottom Interval(mm): 0/ 450 Analyst: Rideout, M.
Hole: 562 Sample Midpoint (m) : 260.95
Core: 3 Top of Core Depth (m) : 259.00
Sect: 2 Top of Section Depth(m): 260.50
LITHOLOGY: GLASS BRECCIA;
LIMESTONE;
Piece No. : PCES 1 (1-7), 2A (9-12), 2B (12-14), 2C (13-17),
2D (16-22), 2E (21-24), 2F (25-30), 2G (29-34),
2H (35-38), 2I (39-43);
Comments : BLACK GLASS IN A CALCITE CEMENT WHICH MAY BE BROADLY
CLASSIFIED AS BRECCIA BUT SOME PCES ARE ENTIRELY
GLASS WITHOUT CALCITE WHILE OTHER PCES HAVE CALCITE
& LIMESTONE,CALCITE IS SPARRY IN CAVITIES &
LIMESTONE & CALCITE ARE SLIGHTLY OFF WHITE,RIMS OF
GLASS PCES SLIGHTLY ALTERED IN PALAG(THOSE WITHIN
LIMESTONE);
Vesicles : Size(mm): 1-2 Percent:
Location: Filling:
Shape : ROUNDED
Replacement: CALCITE
CALCITE CEMENT,SPARRY CALCITE IN CAVITIES;
PALAGONITE
Minerals Replaced: GLASS
Leg : 82 Top/Bottom Interval(mm): 450/1500 Analyst: Rideout, M.
Hole: 562 Sample Midpoint (m) : 262.00
Core: 3 Top of Core Depth (m) : 259.00
Sect: 2 Top of Section Depth(m): 260.95
LITHOLOGY: PLAG SPARSELY PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 3A (45-56), 3B (54-63), 3C (63-73), 4 (75-80),
5 (82-89), 6 (93-106), 7A (109-112), 7B (113-116),
7C (117-119), 8A (122-125), 8B (125-134),
8C (134-146);
Texture : SPARSELY PHYRIC,SOME VARIOLITIC SEQUENCES PRESENT
(GLASSY RIM GRADES INTO APHANITIC BASALT & THEN THRU
VARIOLITIC ZONE);
Structure : PILLOW BASALT,FRACTURES,CALCITE VEINS;
Alteration : MOD
PCES 3A-6;
FRESH TO MOD
PCES 7A-8C;
Comments : GRAY(7.5YR N5/0) BASALT,BLACK APHANITIC BASALT
(10YR 2/1),VARIOLITIC ZONE(10YR 6/6);
Vesicles : VESICLES ARE SPARSELY SCATTERED,ESPECIALLY
CONCENTRATED IN ALTERED BASALT & APHANITIC BASALT
& GLASS & VARIOLITIC ZONES;
Phenocrysts: PLAGIOCLASE
Size(mm): 3-9
PLAG ROUNDED PRISMS &/OR GLOMEROCRYSTS;
Replacement: CALCITE
CALCITE VEINS;
Leg : 82 Top/Bottom Interval(mm): 0/1500 Analyst: Rideout, M.
Hole: 562 Sample Midpoint (m) : 263.50
Core: 3 Top of Core Depth (m) : 259.00
Sect: 3 Top of Section Depth(m): 262.00
LITHOLOGY: PLAG SPARSELY PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1 (1-11), 2A (15-25), 2B (26-33), 3A (35-38),
3B (38-42), 3C (42-49), 4 (52-55), 5 (56-69),
6A (71-80), 6B (80-86), 6C (86-96), 6D (95-106),
7 (108-121), 8A (125-132), 8B (132-136),
8C (138-140), 8D (140-149);
Texture : SPARSELY PHYRIC,PCES 3C+5-6D FINE-GRAINED INTERIORS,
PCES 1-3B+4-5+8A-8D ARE APHANITIC & VARIOLITIC WITH
SOME GLASS(PILLOW MARGINS);
Structure : PILLOW BASALT,SCATTERED CALCITE VEINLETS;
Alteration : MOD
Comments : PCE 7 HAS VARIOUS BASALT FRAGMENTS PLUS ANGULAR
GLASS FRAGMENTS IN A CALCITE MATRIX;
Phenocrysts: PLAGIOCLASE
Replacement: CALCITE
CALCITE MATRIX IN PCE 7,CALCITE VEINLETS ARE
SCATTERED THROUGHOUT;
Leg : 82 Top/Bottom Interval(mm): 0/1350 Analyst: Drake, N.
Hole: 562 Sample Midpoint (m) : 264.85
Core: 3 Top of Core Depth (m) : 259.00
Sect: 4 Top of Section Depth(m): 263.50
LITHOLOGY: PLAG SPARSELY PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1 (1-8), 2 (9-19), 3 (21-26), 4A (28-36),
4B (35-45), 5A (46-57), 5B (57-70), 5C (70-74),
5D (75-82), 5E (83-89), 6 (91-105), 7 (108-124),
8 (125-135);
Texture : SPARSELY PHYRIC,PCES 1-5E ARE APHANITIC & VARIOLITIC
BASALTS SIMILAR TO THOSE IN CORES 2-2 & 3-1,NOT MUCH
GLASS PRESENT,PCES 6-8 ARE FINE-GRAINED PILLOW
INTERIORS SIMILAR TO THAT FOUND IN CORES 2-1 & 3-1;
Structure : PILLOW BASALT,LITTLE CALCITE VEINING;
Alteration : MOD
PCES 1-5E+8;
FRESH TO MOD
PCES 6-7;
Comments : PCES 1+8 ARE MADE UP OF BASALT CHIPS;
Vesicles : Size(mm): <1 Percent: 1-2
Location: Filling:
Shape : ROUND
ROUNDED EMPTY VESICLES IN APHANITIC & VARIOLITIC
MARGINS;
Size(mm): 1-2 Percent: <1
Location: Filling: CALCITE
Shape : ROUND,IRREG
CALCITE-FILLED ROUNDED & IRREGULAR VESICLES IN
PILLOW INTERIORS & VARIOLITIC ZONE;
Phenocrysts: PLAGIOCLASE
Replacement: CALCITE
CALCITE-FILLED VEINS ARE FEW,CALCITE FILLS SOME
VESICLES;
Leg : 82 Top/Bottom Interval(mm): 0/1300 Analyst: Christie, D.M.
Hole: 562 Sample Midpoint (m) : 269.30
Core: 4 Top of Core Depth (m) : 268.00
Sect: 1 Top of Section Depth(m): 268.00
LITHOLOGY: APHYRIC TO PLAG MOD PHYRIC BASALT;
MASSIVE BASALT;
LIMESTONE;
Piece No. : PCES 1A (1-7), 1B (7-22), 1C (21-29), 1D (29-41),
2 (42-50), 3A (52-66), 3B (66-85), 3C (84-90),
3D (90-96), 3E (95-120), 3F (120-130);
Texture : APHYRIC BECOMING MOD PHYRIC DOWNCORE,FINE-GRAINED;
Structure : MASSIVE BASALT,CALCITE VEINS IN PCES 1D+2+3B,PATCHES
& VEINS OF LIMESTONE IN PCES 1D-3A;
Alteration : MOD
PCES 1A-1C & PARTS OF PCES 3B+3C;
EXT
PCES 1D+2 & TOP 5CM OF PCE 3A;
FRESH
LOWER PART OF PCE 3A,MOST OF PCE 3B,PCES 3D-3F;
Comments : GRAY(7.5YR N5/0) BASALT,LIMESTONE VEINS ARE BRICK
RED & LIMESTONE PATCHES ARE YELLOWISH-RED(5YR 5/6);
Groundmass : PLAGIOCLASE (30-40%)
Size(mm): TO 3
PLAG NEEDLES RANDOMLY ORIENTED;
OLIVINE ( 5-10%)
Size(mm): <0.5
BROWN WEATHERED(?) FINE ROUND OL IN WEATHERED
AREAS;
Phenocrysts: PLAGIOCLASE ( 2-3%)
Size(mm): 2-10
PRISMS & ROUNDED(?) PLAG PHENOS WITH GLOMEROCRYSTS
GENERALLY 2-5MM WITH SOME TO 10MM,MAXIMUM
ABUNDANCE REACHES 2-3% BELOW 70CM;
Replacement: UNIDENTIFIED
Minerals Replaced: OL
WEATHERED OL IN ALTERED ZONES;
CALCITE
CALCITE VEINS;
Leg : 82 Top/Bottom Interval(mm): 0/1500 Analyst: Drake, N.
Hole: 562 Sample Midpoint (m) : 271.00
Core: 4 Top of Core Depth (m) : 268.00
Sect: 2 Top of Section Depth(m): 269.50
LITHOLOGY: PLAG SPARSELY TO MOD PHYRIC BASALT;
MASSIVE BASALT;
Piece No. : PCES 1A (1-36), 1B (35-60), 2 (60-75), 3A (76-98),
3B (98-107), 3C (105-124), 3D (124-137),
3E (137-149);
Texture : SPARSELY TO MOD PHYRIC BECOMES MORE PHYRIC DOWNCORE;
Structure : MASSIVE BASALT,SOME CALCITE VEINS;
Alteration : FRESH
UPPER 25CM OF PCE 1A,LOWER 17CM OF PCE 1B;
MOD
LOWER 11CM OF PCE 1A,UPPER 7CM OF PCE 1B,PCES
2-3E;
Groundmass : PLAGIOCLASE (30-40%)
Size(mm): 3-4
ELONGATE PLAG NEEDLES RANDOMLY ORIENTED;
OLIVINE ( 5-10%)
BROWN WEATHERED FINE ROUND OL(?) IN WEATHERED
AREAS;
Phenocrysts: PLAGIOCLASE
Size(mm): 2-10
PRISMS & ROUNDED PLAG GLOMEROCRYSTS;
Replacement: CALCITE
CALCITE VEINS;
UNIDENTIFIED
Minerals Replaced: OL
BROWN WEATHERED OL(ID OL UNCERTAIN);
Leg : 82 Top/Bottom Interval(mm): 0/ 770 Analyst: Christie, D.M.
Hole: 562 Sample Midpoint (m) : 271.77
Core: 4 Top of Core Depth (m) : 268.00
Sect: 3 Top of Section Depth(m): 271.00
LITHOLOGY: PLAG-OL MOD PHYRIC TO PHYRIC BASALT;
MASSIVE BASALT;
PILLOW BASALT;
Piece No. : PCES 1 (1-10), 2A (12-22), 2B (22-42), 2C (41-46),
2D (46-55), 2E (55-62), 2F (62-70), 2G (70-77);
Texture : MOD PHYRIC BECOMING MORE PHYRIC DOWNCORE,FINE-
GRAINED SIMILAR TO CORE 4-1;
Structure : MASSIVE PILLOW BASALT;
Alteration : MOD
PCES 1+2D-2E;
FRESH
PCES 2A-2C+2F-2G;
Comments : GRAY(7.5YR N5/0) BASALT,APPARENTLY GRAVITY
ACCUMULATION NEAR BASE OF FLOW;
Phenocrysts: PLAGIOCLASE ( 5-10%)
Size(mm): TO 10
PLAG PHENOS ARE ABUDANT GENERALLY 5% & LOCALLY TO
10%;
OLIVINE ( RARE%)
Size(mm): TO 2
Leg : 82 Top/Bottom Interval(mm): 770/ 930 Analyst: Christie, D.M.
Hole: 562 Sample Midpoint (m) : 271.93
Core: 4 Top of Core Depth (m) : 268.00
Sect: 3 Top of Section Depth(m): 271.77
LITHOLOGY: APHYRIC BASALT;
MASSIVE BASALT;
PILLOW BASALT;
Piece No. : PCES 2G (77-82), 2H (82-92);
Texture : APHYRIC,FINE-GRAINED,SMALL GLASS RIND ON BASE OF
PCE 2H;
Structure : MASSIVE PILLOW BASALT;
Alteration : MOD
PCES 2G-2H;
Comments : BASALT ALTERED LIGHT GRAY(10YR 6/1) TO LIGHT
BROWNISH-GRAY(10YR 6/2);
Phenocrysts: PLAGIOCLASE
Size(mm): <5
PLAG PHENOS ARE SCATTERED;
Leg : 82 Top/Bottom Interval(mm): 930/1500 Analyst: Christie, D.M.
Hole: 562 Sample Midpoint (m) : 272.50
Core: 4 Top of Core Depth (m) : 268.00
Sect: 3 Top of Section Depth(m): 271.93
LITHOLOGY: PLAG SPARSELY PHYRIC BASALT;
MASSIVE BASALT;
PILLOW BASALT;
LIMESTONE;
Piece No. : PCES 3A (93-98), 3B (99-103), 4A (105-125),
4B (125-129), 4C (129-136), 5 (140-150);
Texture : SPARSELY PHYRIC,APHANITIC & VARIOLITIC,BASALT GLASS
IN PCES 4A-5;
Structure : MASSIVE PILLOW BASALT,VEINLETS OF CALCITE & LARGER
VEINS OF LIMESTONE;
Alteration : EXT
PCES 3A-3B;
FRESH TO MOD
PCES 4A-5,GLASS SLIGHTLY PALAGONITIZED,VARIOLITIC
ZONES ALTERED;
Comments : VAROLITIC ZONES ALTERED TO LIGHT OLIVE-GRAY(5Y 6/2),
LIMESTONE VEINS ARE LIGHT REDDISH-BROWN(5YR 6/3);
Replacement: CALCITE
CALCITE VEINLETS;
PALAGONITE
Minerals Replaced: GLASS
GLASS ONLY SLIGHTLY PALAGONITIZED;
Leg : 82 Top/Bottom Interval(mm): 0/1400 Analyst: Drake, N.
Hole: 562 Sample Midpoint (m) : 273.90
Core: 4 Top of Core Depth (m) : 268.00
Sect: 4 Top of Section Depth(m): 272.50
LITHOLOGY: PLAG SPARSELY PHYRIC BASALT;
PILLOW BASALT;
LIMESTONE;
Piece No. : PCES 1A (1-4), 1B (5-8), 2A (9-18), 2B (18-23),
2C (23-30), 2D (31-39), 3A (40-50), 3B (50-55),
4 (57-64), 5 (65-74), 6A (75-78), 6B (80-84),
6C (80-88), 7A (90-95), 7B (95-105), 8A (106-117),
8B (117-124), 8C (125-130), 9 (130-140);
Texture : SPARSELY PHYRIC,INTERVALS 10-56+66-75+90-130CM ARE
VARIOLITIC ZONES WHICH GRADE INTO APHANITIC BASALT &
THEN INTO GLASS RIMS;
Structure : PILLOW BASALT;
Alteration : MOD
PCES 1A-3B+5+7A+8C-9;
FRESH
PCES 4+6A-6C+7B-8B;
Comments : APHANITIC BLACK BASALT,PCES 1A-1B+4+6A-6C ARE MADE
UP OF BLACK CLASTS IN PINKISH-GRAY(7.5YR 6/2) OR
WHITE CALCITE OR BOTH TOGETHER;
Vesicles : Size(mm): <1 Percent: <1
Location: Filling: CALCITE
Shape : ROUND,IRREG
CALCITE-FILLED VESICLES AT PILLOW MARGINS;
Size(mm): 1-2 Percent:
Location: Filling: CALCITE,GLASS
Shape : ROUND
DRUSY CALCITE & GLASS CLAST IN ROUNDED EMPTY
VESICLES IN PCE 4;
Replacement: CALCITE
CALCITE FILLS VESICLES AT PILLOW MARGINS,DRUSY
CALCITE IN VESICLES IN PCE 4;
Leg : 82 Top/Bottom Interval(mm): 0/ 550 Analyst: Brannon, J.
Hole: 562 Sample Midpoint (m) : 274.55
Core: 4 Top of Core Depth (m) : 268.00
Sect: 5 Top of Section Depth(m): 274.00
LITHOLOGY: PLAG MOD PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1A (2-5), 1B (5-10), 1C (12-14), 2A (17-29),
2B (30-34), 2C (34-36), 3A (39-44), 3B (45-53);
Texture : MOD PHYRIC,FINE-GRAINED,PCES 1+3A HAVE VARIOLITIC
ZONES;
Structure : PILLOW BASALT;
Alteration : MOD
PCES 1A-1C;
FRESH
PCES 2A-2C+3B;
FRESH TO MOD
PCE 3A;
Comments : DARK GRAY BASALT(7.5YR, N4/0);
Vesicles : Size(mm): <1 Percent: <1
EMPTY VESICLES IN VARIOLITIC ZONES;
Phenocrysts: PLAGIOCLASE ( 3-5%)
Size(mm): 3-15
PLAG PHENOS ANHEDRAL(RESORBED);
Leg : 82 Top/Bottom Interval(mm): 0/1450 Analyst: Neuser, R.
Hole: 562 Sample Midpoint (m) : 278.45
Core: 5 Top of Core Depth (m) : 277.00
Sect: 1 Top of Section Depth(m): 277.00
LITHOLOGY: PLAG MOD PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1 (1-8), 2A (10-26), 2B (25-43), 3 (44-55),
4A (58-68), 4B (67-78), 4C (78-88), 5 (90-97),
6A (98-104), 6B (103-106), 6C (107-114),
6D (114-125), 6E (124-126), 6F (132-142);
Texture : MOD PHYRIC,FINE-GRAINED,GLASS RINDS OF PILLOWS ON
PCES 2A+6B-6E,VARIOLITIC ZONES OCCUR CLOSE TO GLASS;
Structure : PILLOW BASALT,FRACTURES,CALCITE-FILLED VEINS IN PCES
1+6C-6D;
Alteration : MOD
PCES 1-3+5+6F,ALT.GLAS ALONG FRACTURES;
FRESH TO MOD
PCES 4A-4C+6A-6E,ALT.GLAS ALONG FRACTURES;
Comments : BASALT IS DARK GRAY(7.5YR N4/0),BLACK GLASS WITH
SOME BROWN(10YR 5/3) ALT.GLAS;
Vesicles : Size(mm): <1.5 Percent:
Location: Filling: CALCITE,CLAY.MIN
Shape : ROUND
VESICLES ARE ABUNDANT IN UPPER PARTS OF PILLOWS
(10-40+107-142CM) WITH CALCITE & CLAY.MIN FILLING
& SOME ARE EMPTY;
Phenocrysts: PLAGIOCLASE ( 2-5%)
Size(mm): TO 10
PLAG PHENOS SUBHEDRAL(RESORBED);
Replacement: CALCITE
CALCITE-FILLED VEINS & SOME VESICLES;
CLAY MINERALS
CLAY.MINS FILL SOME VESICLES;
PALAGONITE
Minerals Replaced: GLASS
WEAKLY PALAGONITIZED GLASS ALONG FRACTURES;
Leg : 82 Top/Bottom Interval(mm): 0/1500 Analyst: Neuser, R.
Hole: 562 Sample Midpoint (m) : 280.00
Core: 5 Top of Core Depth (m) : 277.00
Sect: 2 Top of Section Depth(m): 278.50
LITHOLOGY: PLAG MOD PHYRIC BASALT;
PILLOW BASALT;
MASSIVE BASALT;
LIMESTONE;
Piece No. : PCES 1A (3-8), 1B (8-12), 1C (12-16), 2A (17-27),
2B (25-33), 2C (34-37), 2D (39-49), 3A (52-54),
3B (55-59), 3C (61-64), 4A (66-85), 4B (86-97),
4C (96-113), 4D (113-118), 4E (113-129),
4F (128-138), 4G (138-143), 4H (143-147),
4I (147-150);
Texture : MOD PHYRIC,PCES 2D-4I FINE-GRAINED,PCE 2D SHOWS
VARIOLITIC TRANSITION FROM APHANITIC TO FINE-GRAINED
BASALT DOWNWARD;
Structure : PILLOW BASALT,MASSIVE BASALT PCES 2D-4I,FRACTURES;
Alteration : FRESH TO MOD
SMALL ALTERATION ZONE PARALLEL TO FRACTURES,PALAG
FRAGMENTS ON TOP OF PCE 2D;
Comments : BASALT IS DARK GRAY(7.5YR 5/3 TO 7.5YR N4/0),
PINKISH-GRAY(7.5YR N6/2) LIMESTONE LAYER ON TOP OF
PCE 2D;
Vesicles : Size(mm): <1 Percent:
Location: Filling: CALCITE,CLAY.MIN
Shape : IRREG
CALCITE-FILLED VESICLES IN PCES 2B+2C,PCE 2C ALSO
HAS IRREGULAR VESICLES WHICH ARE PARTLY CALCITE
COATED,VESICLES DECREASE TOWARD BOTTOM OF SECTION
& ARE EMPTY OR COATED WITH SOME CLAY.MIN;
Phenocrysts: PLAGIOCLASE ( 2-5%)
Size(mm): TO 10
PLAG PHENOS SUBHEDRAL TO ROUNDED THROUGHOUT & ARE
RESORBED IN PCES 2D-4I;
Replacement: CALCITE
CALCITE FILLS SOME VESICLES;
CLAY MINERALS
CLAY.MINS COATS SOME VESICLES;
Leg : 82 Top/Bottom Interval(mm): 0/1500 Analyst: Drake, N.
Hole: 562 Sample Midpoint (m) : 281.50
Core: 5 Top of Core Depth (m) : 277.00
Sect: 3 Top of Section Depth(m): 280.00
LITHOLOGY: PLAG MOD PHYRIC BASALT;
MASSIVE BASALT;
LIMESTONE;
Piece No. : PCES 1A (0-20), 1B (20-27), 1C (27-39), 1D (40-58),
1E (58-75), 1F (75-89), 1G (88-113), 1H (112-126),
1I (128-150);
Texture : MOD PHYRIC,FINE-GRAINED;
Structure : MASSIVE BASALT,FRACTURES FILLED WITH CALCITE & LARGE
FRACTURES FILLED WITH LIMESTONE;
Alteration : MOD
INTERVALS 0-8+39-58+64-69+100-117+130-150CM,
ALTERATION ALONG FRACTURES;
FRESH
INTERVALS 8-39+58-64+69-100+117-130CM;
Comments : GRAY(7.5YR N5/0) BASALT,ALTERED BASALT IS GRAYISH-
BROWN ALONG FRACTURES(2.5Y 5/2),PINKISH-GRAY OR
LIGHT BROWN(7.5YR 7/2 OR 7.5YR 6/4) LIMESTONE FILLS
FRACTURES;
Vesicles : Size(mm): 1-2 Percent: <1
Location: Filling: CLAY.MIN
Shape : ROUND,IRREG
VESICLES FILLED WITH GREENISH CLAY.MINS(?);
Groundmass : PLAGIOCLASE (30-40%)
Size(mm): 2-3
PLAG NEEDLES RANDOMLY ORIENTED;
Phenocrysts: PLAGIOCLASE ( 2-3%)
Size(mm): 3-10
PRISMATIC OR EQUANT PLAG PHENOS;
Replacement: CALCITE
CALCITE FILLS FRACTURES;
CLAY MINERALS
GREENISH CLAY.MINS(?) FILL VESICLES;
Leg : 82 Top/Bottom Interval(mm): 0/1350 Analyst: Drake, N.
Hole: 562 Sample Midpoint (m) : 282.85
Core: 5 Top of Core Depth (m) : 277.00
Sect: 4 Top of Section Depth(m): 281.50
LITHOLOGY: PLAG MOD PHYRIC BASALT;
MASSIVE BASALT;
LIMESTONE;
Piece No. : PCES 1A (1-13), 1B (12-52), 1C (52-75), 1D (75-88),
1E (88-92), 1F (93-96), 2A (97-121), 2B (112-135);
Texture : MOD PHYRIC,SIMILAR TO CORE 5-3;
Structure : MASSIVE BASALT,INTERVAL 78-81CM HAS VEINS FILLED
WITH LIMESTONE,MINOR CALCITE VEINLETS;
Alteration : MOD
INTERVALS 0-10+34-65+79-106,GENERALLY MORE ALTERED
THAN CORE 5-3;
EXT
INTERVAL 10-20CM;
FRESH
INTERVALS 20-34+65-79+106-135CM;
Comments : COLORING OF BASALT SIMILAR TO CORE 5-3,PINKISH-GRAY
LIMESTONE(5YR 7/2) FILLS VEINS IN INTERVAL 78-81CM;
Phenocrysts: PLAGIOCLASE
Replacement: CALCITE
CALCITE-FILLED MINOR VEINLETS;
Leg : 82 Top/Bottom Interval(mm): 0/1500 Analyst: Neuser, R.
Hole: 562 Sample Midpoint (m) : 284.50
Core: 5 Top of Core Depth (m) : 277.00
Sect: 5 Top of Section Depth(m): 283.00
LITHOLOGY: PLAG MOD PHYRIC BASALT;
BASALT BRECCIA;
Piece No. : PCES 1 (0-19), 2A (21-26), 2B (25-29), 2C (30-34),
2D (32-40), 3A (42-57), 3B (51-65), 3C (64-74),
3D (74-85), 4A (87-98), 4B (99-117), 5 (118-125),
6A (127-137), 6B (139-146);
Texture : MOD PHYRIC,FINE-GRAINED BASALT;
Structure : MASSIVE BASALT ENDS WITH PCE 4B;
Alteration : MOD
PCE 5,PALAG IN PCE 5;
FRESH TO MOD
ALL OTHER PCES;
Comments : DARK GRAY(7.5YR N5/0) BASALT,PCE 5 IS BASALT BRECCIA
PCE WHICH IS HIGHLY FRACTURED WITH CALCITE CEMENTED
BASALT & PALAG FRAGMENTS,BASALT PORTION OF PCE 5 IS
VARIOLITIC(<1MM);
Vesicles : Size(mm): Percent: 0
ALL PCES EXCEPT PCE 5;
Location: Filling: CALCITE,CLAY.MIN
FEW VESICLES IN PCE 5 WHICH ARE EITHER EMPTY OR
CLAY.MIN OR CALCITE FILLED;
Phenocrysts: PLAGIOCLASE
Size(mm): TO 15
PHENOS IN PCES 1-4B;
PLAGIOCLASE ( 5%)
PHENOS IN PCES 6A-6B,SUBHEDRAL TO ROUNDED
(RESORBED);
Replacement: CALCITE
SPARRY CALCITE IN PCE 3D,CALCITE CEMENTS BRECCIA
PCE 5,VESICLES IN PCE 5 HAVE CALCITE FILLING;
CLAY MINERALS
VESICLES IN PCE 5 FILLED WITH CLAY.MINS;
PALAGONITE
Minerals Replaced: GLASS
FOUND IN PCE 5;
Leg : 82 Top/Bottom Interval(mm): 0/1500 Analyst: Neuser, R.
Hole: 562 Sample Midpoint (m) : 287.50
Core: 6 Top of Core Depth (m) : 286.00
Sect: 1 Top of Section Depth(m): 286.00
LITHOLOGY: PLAG MOD PHYRIC BASALT;
PILLOW BASALT;
BASALT BRECCIA;
LIMESTONE;
Piece No. : PCES 1A (0-4), 1B (4-7), 1C (7-10), 2A (12-14),
2B (15-18), 2C (18-24), 3A (26-30), 3B (31-41),
4 (42-50), 5A (51-56), 5B (56-65), 5C (65-75),
5D (75-79), 5E (79-82), 5F (82-87), 5G (86-95),
6 (96-114), 7A (115-126), 7B (125-130),
7C (130-133), 7D (133-137), 7E (137-140),
7F (140-150);
Texture : MOD PHYRIC,FINE-GRAINED,PCES 1A-4 ARE ALL FROM BLACK
APHANITIC ZONE CLOSE TO CHILLED GLASS RIND & FROM
GLASS RIND;
Structure : PILLOW BASALT,FRACTURES WITH SOME CALCITE-FILLED;
Alteration : FRESH TO MOD
GLASS SHOWS MINOR PALAGONITIZATION ALONG
FRACTURES;
Comments : BASALT IS DARK GRAY TO GRAYISH-BROWN(2.5Y N4/0 TO
2.5Y N5/2),PCE 3A SHOWS BASALT BRECCIA WITH SOME
ALTERED ROUNDED & ANGULAR GLASS CLASTS(TO 15MM) WITH
PALE BROWN(10YR 8/3) LIMESTONE & CALCITE MATRIX,
PCES 6-7F ARE BASALT FRAGMENTS & INTERPILLOW BRECCIA
(HYALOCLASTITE?) & CONTAINS ANGULAR GLASS & SOME
APHANITIC BASALT CLASTS(TO 10MM) & SOME LIMESTONE
MATRIX & CALCITE CEMENT;
Vesicles : Size(mm): <1.5 Percent:
Location: Filling: UNIDENT.MINS
Shape : ROUND
MOSTLY EMPTY VESICLES IN PCES 1A-5G,OTHERS FILLED
WITH UNIDENT.MINS;
Phenocrysts: PLAGIOCLASE ( 2-3%)
Size(mm): TO 8
PHENOS ARE SUBHEDRAL TO ROUNDED(RESORBED);
Replacement: CALCITE
CALCITE CEMENTS BRECCIA & FILLS SOME FRACTURES;
PALAGONITE
Minerals Replaced: GLASS
MINOR PALAGONITIZATION ALONG FRACTURES;
UNIDENTIFIED
Minerals Replaced: GLASS
ALT.GLAS CLASTS IN PCE 3A;
Leg : 82 Top/Bottom Interval(mm): 0/ 760 Analyst: Drake, N.
Hole: 562 Sample Midpoint (m) : 288.26
Core: 6 Top of Core Depth (m) : 286.00
Sect: 2 Top of Section Depth(m): 287.50
LITHOLOGY: BASALTIC BRECCIA;
LIMESTONE;
Piece No. : PCES 1A (0-7), 1B (7-10), 1C (10-13), 1D (13-18),
1E (18-22), 1F (22-30), 1G (30-35), 1H (35-40),
1I (40-43), 1J (43-46), 1K (46-48), 1L (48-51),
1M (52-57), 1N (57-61), 1O (61-66), 1P (67-73),
1Q (73-76);
Comments : BLACK GLASS CLASTS & BRECCIA IN CALCITE CEMENT OR
LIMESTONE IN SOME PLACES,MOSTLY FRESHER ALTERED TO
YELLOW(10YR 7/6) TO REDDISH-YELLOW(7.5YR 6/8) OR
DARK REDDISH-BROWN(5YR 3/2) CLAY.MINS AROUND EDGES
OR ALONG FRACTURES,12-20CM VARIOLITIC PILLOW EDGES
WITH GLASS CLAST RIMS IN CALCITE;
Vesicles : Size(mm): 1-2 Percent: 2-3
Location: Filling:
Shape : ROUND
EMPTY VESICLES FOUND IN GLASS;
Phenocrysts: PLAGIOCLASE ( 2-3%)
Size(mm): 2-5
PLAG GLOMEROCRYSTS IN THE GLASS;
Leg : 82 Top/Bottom Interval(mm): 760/1500 Analyst: Drake, N.
Hole: 562 Sample Midpoint (m) : 289.00
Core: 6 Top of Core Depth (m) : 286.00
Sect: 2 Top of Section Depth(m): 288.26
LITHOLOGY: PLAG SPARSELY PHYRIC BASALT;
PILLOW BASALT;
LIMESTONE;
Piece No. : PCES 1R (76-77), 1S (77-80), 1T (80-83), 2 (84-90),
3 (91-102), 4A (103-121), 4B (121-128),
4C (130-135), 4D (134-150);
Texture : SPARSELY PHYRIC,VARIOLITIC ZONES GRADE THRU
APHANITIC BASALT;
Structure : PILLOW BASALT,CALCITE & LIMESTONE IN FRACTURES;
Alteration : MOD
PCES 1S-1T+3-4B+4D;
FRESH
PCE 2;
EXT
PCE 4C;
Comments : BROWN(10YR 5/3) VARIOLITIC ZONES,BLACK APHANITIC
BASALT,PCE 4C AT INTERVAL 130-132 HAS GLASS CLASTS
IN LIMESTONE MATRIX;
Vesicles :
Location: Filling: CALCITE
VESICLES FOUND IN GLASS,SOME VESICLES FILLED WITH
CALCITE IN PILLOW INTERIORS;
Phenocrysts: PLAGIOCLASE
PLAG PHENOS FOUND IN GLASS;
Replacement: CALCITE
CALCITE IN SOME VESICLES & IN MATRIX OF PCE 4C &
FOUND IN FRACTURES;
UNIDENTIFIED
Minerals Replaced: GLASS
ALT.GLAS CLASTS;
Leg : 82 Top/Bottom Interval(mm): 0/ 200 Analyst: Neuser, R.
Hole: 562 Sample Midpoint (m) : 289.20
Core: 6 Top of Core Depth (m) : 286.00
Sect: 3 Top of Section Depth(m): 289.00
LITHOLOGY: PLAG SPARSELY TO MOD PHYRIC BASALT;
Piece No. : PCES 1A (0-4), 1B (4-10), 1C (10-13), 1D (13-18);
Texture : SPARSELY TO MOD PHYRIC,FINE-GRAINED,PCES 1A-1B HAVE
APHANITIC & CHILLED GLASS RIND;
Structure : FRACTURES;
Alteration : FRESH TO MOD
MINOR PALAGONITIZATION ALONG FRACTURES;
Comments : GRAY(2.5Y N5/0) BASALT;
Phenocrysts: PLAGIOCLASE
Size(mm): <5
SUBHEDRAL TO ROUNDED(RESORBED) PHENOS;
Replacement: PALAGONITE
MINOR PALAGONITIZATION ALONG FRACTURES;
Leg : 82 Top/Bottom Interval(mm): 200/1500 Analyst: Neuser, R.
Hole: 562 Sample Midpoint (m) : 290.50
Core: 6 Top of Core Depth (m) : 286.00
Sect: 3 Top of Section Depth(m): 289.20
LITHOLOGY: PLAG MOD PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 2A (20-35), 2B (36-45), 2C (45-55), 2D (55-64),
2E (63-69), 2F (71-74), 3A (76-80), 3B (80-93),
3C (94-100), 4 (101-109), 5A (109-114),
5B (115-117), 5C (117-127), 5D (127-137),
5E (135-145), 5F (145-150);
Texture : MOD PHYRIC;
Structure : PILLOW BASALT,FRACTURES;
Alteration : FRESH TO MOD
FRESH GLASS AT TOP & BOTTOM,ALTERATION ZONES ALONG
FRACTURES;
Comments : GRAY(2.5Y N5/0) BASALT;
Vesicles :
Location: Filling: CLAY.MINS,CALCITE
ABUNDANT FILLED VESICLES IN INTERVALS 22-35+
90-100CM;
Phenocrysts: PLAGIOCLASE ( 4%)
Size(mm): <7
Replacement: CLAY MINERALS
CALCITE
CALCITE & CLAY.MINS FILL VESICLES;
Leg : 82 Top/Bottom Interval(mm): 0/1100 Analyst: Neuser, R.
Hole: 562 Sample Midpoint (m) : 291.60
Core: 6 Top of Core Depth (m) : 286.00
Sect: 4 Top of Section Depth(m): 290.50
LITHOLOGY: PLAG PHYRIC BASALT;
PILLOW BASALT;
LIMESTONE;
Piece No. : PCES 1A (1-17), 1B (17-34), 1C (35-42), 2A (44-46),
2B (46-48), 2C (49-52), 2D (54-68), 2E (69-74),
2F (74-80), 2G (80-90), 2H (90-102), 3A (103-107),
3B (107-110);
Texture : PHYRIC,FINE-GRAINED,GLASS ON PCES 1A-2D+3A-3B;
Structure : PILLOW BASALT,VEINLETS FILLED WITH CALCITE CEMENT OR
LIMESTONE;
Alteration : MOD
BASALT ALTERED IN PARTS;
FRESH
GLASS;
Comments : FRESH BASALT IS GRAY(2.5Y N5/0),ALTERED BASALT IS
GRAYISH-BROWN,PCE 3B CONSISTS MAINLY OF PINKISH-GRAY
(7.5YR 7/2) LIMESTONE;
Vesicles : Size(mm): Percent: RARE
VESICLES RARE TO ABSENT;
Phenocrysts: PLAGIOCLASE (10-15%)
Size(mm): <8
PLAG PHENOS ARE SUBHEDRAL TO ROUNDED(RESORBED);
Replacement: CALCITE
CALCITE FILLS SOME NARROW VEINLETS;
Leg : 82 Top/Bottom Interval(mm): 0/1500 Analyst: Rideout, M.
Hole: 562 Sample Midpoint (m) : 296.50
Core: 7 Top of Core Depth (m) : 295.00
Sect: 1 Top of Section Depth(m): 295.00
LITHOLOGY: PLAG PHYRIC TO MOD PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1A (1-4), 1B (4-6), 2 (9-16), 3 (18-25),
4A (26-32), 4B (30-40), 5A (43-47), 5B (47-50),
6A (53-67), 6B (65-72), 6C (73-78), 7A (80-84),
7B (81-90), 7C (89-102), 7D (102-106), 7E (106-112),
7F (112-119), 7G (118-123), 7H (123-133),
7I (133-137), 7J (137-139),8 (142-149);
Texture : PHYRIC TO MOD PHYRIC BASALT,VARIOLITIC SEQUENCES,
GLASSY RIMS GRADE INTO APHANITIC BASALT & THEN THRU
PHYRIC BASALT,GLASS CONCENTRATED IN PCES 1A+2+5A+7C-
7E & RIM OF A PCE IN PCE 8;
Structure : PILLOW BASALT,FRACTURES,CALCITE VEINS;
Alteration : FRESH TO MOD
ALTERATION IN FRACTURES & NEAR PILLOW EDGES;
MOD
PCE 1A & 1B & 2;
Comments : FRESHER BASALT IS GRAY(2.5Y, N5/0),ALTERED BASALT IS
BROWNISH-YELLOW(10YR 6/6),BLACK(10YR 2/1) APHANITIC
BASALT,VARIOLITIC ZONE BROWNISH-YELLOW(10YR 6/6);
Vesicles : Size(mm): 1-2 Percent:
Location: Filling: CALCITE,CLAY.MIN
Shape : ROUNDED
VESICLES ARE SPARSELY SCATTERED WITH SOME FILLED
WITH CALCITE & SOME WITH CLAY.MINS,FEW IMMEDIATELY
ADJACENT TO GLASS ARE EMPTY;
Phenocrysts: PLAGIOCLASE ( 5-10%)
Size(mm): 4-9
PLAG PHENOS ARE GLOMEROCRYSTS &/OR ROUNDED PRISMS;
Replacement: CALCITE
CLAY MINERALS
CALCITE & CLAY.MINS FILL SOME VESICLES,CALCITE
VEINS;
Leg : 82 Top/Bottom Interval(mm): 0/1500 Analyst: Rideout, M.
Hole: 562 Sample Midpoint (m) : 298.00
Core: 7 Top of Core Depth (m) : 295.00
Sect: 2 Top of Section Depth(m): 296.50
LITHOLOGY: PLAG PHYRIC TO MOD PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1A (1-3), 1B (3-9), 1C (10-14), 1D (15-20),
1E (18-26), 2A (27-29), 2B (29-34), 2C (33-45),
2D (45-53), 2E (51-67), 2F (67-72), 2G (73-80),
2H (81-85), 3A (85-91), 3B (89-100), 4A (102-107),
4B (107-112), 4C (112-117), 4D (118-120),
4E (120-133), 4F (133-142), 4G (142-149);
Texture : PHYRIC TO MOD PHYRIC,SAME AS CORE 7-1;
Structure : PILLOW BASALT,FRACTURES,CALCITE VEINS;
Alteration : FRESH TO MOD
INTERVAL 15-97CM,
DARK BROWNISH-GREEN PATCHES OF MATERIAL POSSIBLY
ALTERATION OF OL;
MOD
INTERVALS 1-15CM & 97-150CM;
Comments : SAMES COLORING AS IN CORE 7-1,DARK BROWNISH-GREEN
PATCHES;
Vesicles : Size(mm): 1-2 Percent:
Location: Filling: CALCITE,CLAY.MIN
Shape : ROUNDED
VESICLES ARE SPARSELY SCATTERED WITH SOME FILLED
WITH CALCITE & SOME WITH CLAY.MINS,FEW IMMEDIATELY
ADJACENT TO GLASS ARE EMPTY;
Phenocrysts: PLAGIOCLASE ( 5-10%)
Size(mm): 4-9
PLAG PHENOS ARE GLOMEROCRYSTS &/OR ROUNDED PRISMS;
OLIVINE
ID OL UNCERTAIN,DARK BROWNISH-GREEN PATCHES OF
MATERIAL MAY BE ALTERED OL;
Replacement: CALCITE
CLAY MINERALS
CALCITE & CLAY.MINS FILL SOME VESICLES,CALCITE
VEINS;
Leg : 82 Top/Bottom Interval(mm): 0/1250 Analyst: Rideout, M.
Hole: 562 Sample Midpoint (m) : 299.25
Core: 7 Top of Core Depth (m) : 295.00
Sect: 3 Top of Section Depth(m): 298.00
LITHOLOGY: PLAG MOD PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1 (1-17), 2 (21-28), 3 (29-36), 4 (37-45),
5 (49-56), 6A (57-61), 6B (61-70), 7 (74-105),
8 (108-121);
Texture : MOD PHYRIC,SIMILAR TO CORE 7-1,BASALT IS IN SMALLER
PCES & FRAGMENTS THAN CORES 7-1 & 7-2;
Structure : PILLOW BASALT,FRACTURED;
Alteration : FRESH TO MOD
ALTERATION AT FRACTURES & PILLOW EDGES,
FRESHER BASALT IS GRAY(2.5Y N5/0),ALTERED BASALT I
BROWNISH-YELLOW(10YR 6/6);
Vesicles : Size(mm): 1-2 Percent:
Location: Filling: CALCITE,CLAY.MIN
Shape : ROUNDED
VESICLES ARE SPARSELY SCATTERED & ARE EMPTY OR
LINED WITH CALCITE OR CLAY.MINS;
Phenocrysts: PLAGIOCLASE
Replacement: CALCITE
CLAY MINERALS
VESICLES LINED WITH CLAY.MINS OR CALCITE;
Leg : 82 Top/Bottom Interval(mm): 0/1500 Analyst: Rideout, M.
Hole: 562 Sample Midpoint (m) : 301.50
Core: 8 Top of Core Depth (m) : 300.00
Sect: 1 Top of Section Depth(m): 300.00
LITHOLOGY: PLAG SPARSELY PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1 (1-11), 2 (13-20), 3A (21-24), 3B (24-27),
3C (27-29), 3D (29-32), 4 (34-46), 5A (48-53),
5B (53-65), 5C (65-75), 6A (75-78), 6B (80-90),
7A (91-102), 7B (101-110), 7C (108-123),
8A (123-130), 8B (128-133), 8C (135-137),
9A (139-148), 9B (147-150);
Texture : SPARSELY PHYRIC,IN SEQUENCE FROM GLASS TO APHANITIC
BASALT TO VARIOLITIC TO PLAG PHYRIC,GLASS IN PCES
3-5B+8A+9A;
Structure : PILLOW BASALT,FRACTURES,CALCITE RINDS & VEINS;
Alteration : MOD
PCE 1 & 3-6 & 7C;
FRESH
PCE 2;
FRESH TO MOD
ALTERATION VARIES THROUGHOUT,ALTERATION ADJACENT
TO FRACTURES & VEINS;
Comments : GRAY(2.5YR N5/0) BASALT,BLACK(10YR 2/1) APHANITIC
BASALT,YELLOW-BROWN HUED "GRAY"(10YR 6/6 &
2.5Y N5/0) ZONE;
Vesicles : Size(mm): 1-2 Percent:
Location: Filling: CALCITE,CLAY.MIN
Shape : ROUND
VESICLES CONCENTRATED NEAR PILLOW MARGINS WHICH
ARE FILLED WITH CLAY.MINS OR CALCITE OR EMPTY;
Phenocrysts: PLAGIOCLASE
Size(mm): 2-9
PLAG PHENOS PRESENT IN VARIOUS AMOUNTS OF
FREQUENCY-FROM NEARLY ABSENT(PCES 2+8B-9A) TO
SPARSELY(PCES 5B-5B+7A-7C) TO MOD(PCES 1+3-5A),
ROUNDED PRISMS &/OR GLOMEROCRYSTS;
Replacement: CALCITE
CALCITE RINDS & VEINS & FILLS SOME VESICLES;
CLAY MINERALS
CLAY.MINS FILL SOME VESICLES;
Leg : 82 Top/Bottom Interval(mm): 0/ 750 Analyst: Rideout, M.
Hole: 562 Sample Midpoint (m) : 302.25
Core: 8 Top of Core Depth (m) : 300.00
Sect: 2 Top of Section Depth(m): 301.50
LITHOLOGY: PLAG SPARSELY PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1 (1-12), 2 (14-17), 3 (19-23), 4A (24-40),
4B (35-42), 4C (39-42), 5A (44-46), 5B (46-52),
6A (53-63), 6B (60-67), 6C (67-75);
Texture : SPARSELY PHYRIC,SAME AS IN CORE 8-1,VARIOLITIC
SEQUENCE,GLASS IN PCES 5A+6A;
Structure : PILLOW BASALT;
Alteration : FRESH TO MOD
PCES 1-3+6C,ALTERATION SIMILAR TO CORE 8-1;
MOD
PCES 4A-6B;
Comments : GRAY(2.5Y N5/0) BASALT,ALTERED BASALT IS YELLOWISH-
BROWN HUED GRAY(10YR 6/6);
Vesicles : Size(mm): TO 1 Percent:
Location: Filling: CALCITE,CLAY.MIN
Shape : ROUND
VESICLES SPARSELY SCATTERED WITH HALF FILLED WITH
CALCITE & THE OTHER HALF FILLED WITH CLAY.MINS;
Phenocrysts: PLAGIOCLASE
Size(mm): 2-5
PLAG PHENOS PRESENT IN VARIOUS AMOUNTS OF
FREQUENCY-FROM NEARLY ABSENT(PCES 1-2+6C &
SECTIONS OF OTHERS) TO SPARSELY PLAG PHYRIC(REST
OF PCES);
Replacement: CALCITE
CLAY MINERALS
CALCITE & CLAY.MINS FILL VESICLES;
Leg : 82 Top/Bottom Interval(mm): 0/1500 Analyst: Drake, N.
Hole: 562 Sample Midpoint (m) : 305.50
Core: 9 Top of Core Depth (m) : 304.00
Sect: 1 Top of Section Depth(m): 304.00
LITHOLOGY: PLAG MOD PHYRIC BASALT;
PILLOW BASALT;
LIMESTONE;
Piece No. : PCES 1A (1-5), 1B (5-15), 2A (17-24), 2B (24-30),
2C (30-38), 3A (40-45), 3B (45-48), 3C (48-55),
3D (54-58), 3E (58-66), 4A (67-79), 4B (78-89),
4C (89-100), 4D (99-112);
Texture : MOD PHYRIC,FINE-GRAINED,GLASS MARGINS ALMOST RIGHT
NEXT TO BASALT WITH VERY NARROW ZONES OF APHANITIC
BASALT &/OR VERY TINY(<1MM) VARIOLITES;
Structure : PILLOW BASALT,CALCITE & LIMESTONE-FILLED FRACTURES;
Alteration : MOD
PCES 1A-1B+2C-4D,ALTERATION ALONG PILLOW EDGES;
FRESH TO MOD
PCES 2A-2B,ALTERED ALONG GLASS RIMS & FRACTURES;
Comments : GRAY BASALT(2.5Y N5/0),ALTERED BASALT IS GRAYISH-
BROWN(2.5Y 5/2);
Vesicles : Size(mm): TO 1 Percent: 1
Location: Filling: CALCITE
Shape : ROUND,IRREG
VESICLES SCATTERED & FILLED WITH CALCITE;
Phenocrysts: PLAGIOCLASE ( 3-5%)
Size(mm): 3-10
PLAG GLOMEROCRYSTS IN PILLOW INTERIORS & GLASS
RIMS;
Replacement: CALCITE
CALCITE FILLS FRACTURES & SOME VESICLES;
Leg : 82 Top/Bottom Interval(mm): 0/1500 Analyst: Neuser, R.
Hole: 562 Sample Midpoint (m) : 307.00
Core: 9 Top of Core Depth (m) : 304.00
Sect: 2 Top of Section Depth(m): 305.50
LITHOLOGY: PLAG MOD PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1A (0-11), 1B (11-21), 1C (22-28), 2A (32-35),
2B (35-42), 2C (42-46), 3 (49-56), 4A (58-65),
4B (65-72), 4C (73-75), 4D (76-86), 4E (86-93),
4F (93-100), 4G (100-110), 5A (110-117),
5B (117-121), 5C (121-125), 5D (125-131),
5E (131-136), 5F (136-143), 5G (144-150);
Texture : MOD PHYRIC,FINE-GRAINED,PCES 1A+4A+5A HAVE CHILLED
GLASS RINDS ACCOMPANIED BY VERY NARROW VARIOLITIC
ZONE(VARIOLES <0.5MM);
Structure : PILLOW BASALT,SOME PCES SHOW CALCITE-CEMENTED VEINS;
Alteration : FRESH TO MOD
Comments : GRAY(2.5Y N5/0) BASALT;
Vesicles : Size(mm): Percent: RARE
Location: Filling: CALCITE
RARE VESICLES ARE MOSTLY EMPTY BUT SOME ARE FILLED
WITH CALCITE;
Phenocrysts: PLAGIOCLASE ( 8%)
Size(mm): 8
PHENOS ARE SUBANGULAR TO ROUND(RESORBED);
Replacement: CALCITE
CALCITE FILLS VEINS & SOME VESICLES;
Leg : 82 Top/Bottom Interval(mm): 0/1200 Analyst: Drake, N.
Hole: 562 Sample Midpoint (m) : 308.20
Core: 9 Top of Core Depth (m) : 304.00
Sect: 3 Top of Section Depth(m): 307.00
LITHOLOGY: PLAG MOD PHYRIC BASALT;
PILLOW BASALT;
LIMESTONE;
Piece No. : PCES 1A (1-8), 1B (8-13), 1C (14-18), 2 (20-32),
3 (33-40), 4A (42-50), 4B (50-57), 4C (55-63),
4D (64-78), 4E (74-83), 4F (82-91), 4G (90-97),
4H (97-105), 5 (107-120);
Texture : MOD PHYRIC,FINE-GRAINED,SIMILAR TO CORE 9-2;
Structure : PILLOW BASALT,CALCITE & LIMESTONE IN VEINS;
Alteration : FRESH TO MOD
PCE 1A;
EXT
PCE 1B;
MOD
PCES 1C-5;
Comments : GRAY(2.5Y N5/0) BASALT,PCE 1B IS LIGHT GRAYISH-BROWN
(2.5Y 6/2);
Vesicles : Size(mm): 1-3 Percent: 2
Location: Filling:
Shape : ROUND,IRREG
ROUND & IRREGULAR VESICLES ARE SCATTERED & EMPTY;
Phenocrysts: PLAGIOCLASE ( 3-5%)
Size(mm): 2-10
PLAG PHENOS ARE FAIRLY FRESH TO MOD ALTERED
(GRAYISH-BROWN 5/2);
Replacement: CALCITE
CALCITE FILLS VEINS;
Leg : 82 Top/Bottom Interval(mm): 0/1500 Analyst: Neuser, R.
Hole: 562 Sample Midpoint (m) : 314.50
Core: 10 Top of Core Depth (m) : 313.00
Sect: 1 Top of Section Depth(m): 313.00
LITHOLOGY: APHYRIC TO PLAG SPARSELY PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1A (1-4), 1B (4-7), 1C (8-13), 4B (39-50),
4D (57-62);
Texture : APHYRIC TO SPARSELY PHYRIC,GLASS ON PCE 4B,FINE-
GRAINED;
Structure : PILLOW BASALT;
Alteration : FRESH TO MOD
Comments : GRAY(7.5YR N5/0) BASALT;
Vesicles : Size(mm): <1 Percent: RARE
Location: Filling: CALCITE
VESICLES ONLY OCCUR IN INTERVAL 40-50CM;
Phenocrysts: PLAGIOCLASE
Size(mm): TO 10
PLAG PHENOS ARE SUBHEDRAL TO ROUNDED(RESORBED);
Replacement: CALCITE
CALCITE-FILLED VESICLES;
Leg : 82 Top/Bottom Interval(mm): 0/1500 Analyst: Neuser, R.
Hole: 562 Sample Midpoint (m) : 314.50
Core: 10 Top of Core Depth (m) : 313.00
Sect: 1 Top of Section Depth(m): 313.00
LITHOLOGY: PLAG PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 2 (14-20), 3A (23-25), 3B (26-29), 4A (31-39),
4C (47-56), 4E (62-70), 4F (70-77), 4G (77-83),
4H (82-86), 5A (88-96), 5B (95-103), 6A (105-107),
6B (107-112), 6C (112-115), 6D (116-118),
7A (120-128), 7B (128-135), 7C (135-142),
7D (142-147), 7E (147-149);
Texture : PHYRIC,FINE-GRAINED,GLASS ON PCES 4A+4E+4H+7B;
Structure : PILLOW BASALT;
Alteration : FRESH TO MOD
Comments : GRAY(7.5YR N5/0) BASALT;
Vesicles : Size(mm): <1 Percent: RARE
Location: Filling: CALCITE
VESICLES ONLY OCCUR IN INTERVAL 50-55CM;
Phenocrysts: PLAGIOCLASE
Size(mm): TO 10
PLAG PHENOS ARE SUBHEDRAL TO ROUNDED(RESORBED);
Replacement: CALCITE
CALCITE FILLED VESICLES;
Leg : 82 Top/Bottom Interval(mm): 0/1450 Analyst: Drake, N.
Hole: 562 Sample Midpoint (m) : 315.95
Core: 10 Top of Core Depth (m) : 313.00
Sect: 2 Top of Section Depth(m): 314.50
LITHOLOGY: PLAG MOD PHYRIC BASALT;
PILLOW BASALT;
LIMESTONE;
Piece No. : PCES 1A (2-4), 1B (5-8), 1C (8-12), 1D (12-17),
2 (19-25), 3A (28-32), 3B (32-40), 3C (40-50),
3D (47-52), 3E (53-60), 3F (58-65), 4A (67-72),
4B (72-77), 4C (76-87), 4D (85-90), 5A (91-98),
5B (99-105), 6A (106-112), 6B (113-122),
6C (122-132), 6D (131-138), 6E (137-145);
Texture : MOD PHYRIC,GLASS RIM ON PCE 3A;
Structure : PILLOW BASALT,FRACTURES,CALCITE & LIMESTONE VEINS;
Alteration : FRESH TO MOD
PCES 1A-1D+3A+4D-5A+6D-6E,FRESH GLASS ON PCE 3A;
MOD
PCES 2+3B-4C+5B-6C;
Comments : GRAY(2.5Y N5/0) BASALT,PINK(5YR 7/4) LIMESTONE IN
SOME VEINS;
Phenocrysts: PLAGIOCLASE ( TO 5%)
Size(mm): 2-10
PLAG PHENOS ARE FAIRLY FRESH WITH SOME ALTERED TO
LIGHT OLIVE-BROWN ALONG EDGES OR FRACTURES & SOME
PILLOW INTERIORS;
Replacement: CALCITE
CALCITE IN SOME VEINS;
Leg : 82 Top/Bottom Interval(mm): 0/ 650 Analyst: Neuser, R.
Hole: 562 Sample Midpoint (m) : 316.65
Core: 10 Top of Core Depth (m) : 313.00
Sect: 3 Top of Section Depth(m): 316.00
LITHOLOGY: PLAG MOD PHYRIC BASALT;
Piece No. : PCES 1A (0-6), 1B (5-9), 1C (9-12), 1D (12-15),
1E (15-18), 1F (19-21), 2 (22-34), 3A (34-42),
3B (41-44), 4A (46-50), 4B (50-56), 4C (57-62);
Texture : MOD PHYRIC,GLASS ON PCE 5B,FINE-GRAINED;
Alteration : FRESH
Comments : GRAY(2.5YR N5/0) BASALT,PCE 2 MADE UP OF CHIPS;
Phenocrysts: PLAGIOCLASE ( 3-5%)
Size(mm): 2-10
PLAG PHENOS ARE RARE TO ABSENT IN PCE 4B;
Leg : 82 Top/Bottom Interval(mm): 0/1500 Analyst: Neuser, R.
Hole: 562 Sample Midpoint (m) : 323.50
Core: 11 Top of Core Depth (m) : 322.00
Sect: 1 Top of Section Depth(m): 322.00
LITHOLOGY: PLAG MOD PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1A (0-4), 1B (4-11), 1C (11-17), 1D (17-20),
1E (19-24), 2A (26-30), 2B (30-36), 2C (37-42),
3A (43-50), 3B (50-53), 3C (55-56), 4 (58-64),
5A (66-70), 5B (70-73), 6A (74-77), 6B (77-82),
7 (84-90), 8A (91-93), 8B (94-101), 8C (102-105),
9A (106-113), 9B (112-120), 9C (120-125),
10 (128-148);
Texture : MOD PHYRIC,FINE-GRAINED,GLASS RINDS ON PCES 3A+5A-
5B+8C;
Structure : PILLOW BASALT;
Alteration : FRESH TO MOD
Comments : GRAY(7.5YR N5/0) BASALT,PCE 10 IS MADE UP OF ONE
LARGE FRAGMENT & SEVERAL CHIPS;
Phenocrysts: PLAGIOCLASE ( 2-4%)
Size(mm): TO 7
PLAG PHENOS;
Leg : 82 Top/Bottom Interval(mm): 0/ 250 Analyst: Neuser, R.
Hole: 562 Sample Midpoint (m) : 323.75
Core: 11 Top of Core Depth (m) : 322.00
Sect: 2 Top of Section Depth(m): 323.50
LITHOLOGY: PLAG PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1A (1-3), 1B (3-6), 1C (6-12), 1D (12-16),
1E (16-18), 1F (18-22), 1G (21-25);
Texture : PHYRIC BASALT,SIMILAR TO CORE 11-1;
Structure : PILLOW BASALT;
Alteration : FRESH TO MOD
Comments : COLORING SIMILAR TO CORE 11-1;
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