Leg : 74 Top/Bottom Interval(mm): 0/1430 Analyst: Borella, P.E.
Hole: 527 Sample Midpoint (m) : 340.03
Core: 38 Top of Core Depth (m) : 332.00
Sect: CC Top of Section Depth(m): 338.70
LITHOLOGY: SEDIMENT;
Leg : 74 Top/Bottom Interval(mm): 1430/1480 Analyst: Borella, P.E.
Hole: 527 Sample Midpoint (m) : 340.08
Core: 38 Top of Core Depth (m) : 332.00
Sect: CC Top of Section Depth(m): 340.03
LITHOLOGY: BASALTIC RUBBLE;
Piece No. : PCE 1 (143-148);
Texture : APHANITIC MARGIN SUGGESTIVE OF A GLASSY TEXTURE;
Comments : PCE 1 BEGINS UNIT 1;
Leg : 74 Top/Bottom Interval(mm): 0/1450 Analyst: Borella, P.E.
Hole: 527 Sample Midpoint (m) : 342.95
Core: 39 Top of Core Depth (m) : 341.50
Sect: 1 Top of Section Depth(m): 341.50
LITHOLOGY: PLAG-OL-CPX SPARSELY TO MOD PHYRIC BASALT;
MASSIVE BASALT;
Piece No. : PCES 1A (1-17), 1B (15-36), 1C (35-60), 1D (59-70),
1E (70-77), 1F (74-80), 1G (78-120), 1H (116-134),
1I (133-145);
Texture : SPARSELY TO MOD PHYRIC,FINE-GRAINED,NO GLASSY RIMS;
Structure : MASSIVE BASALT,SMEC VEINS(?) ON PCES 1C+1E;
Alteration : MOD
Comments : CONTINUATION OF UNIT 1,MEDIUM GRAY BASALT;
Phenocrysts: PLAGIOCLASE
MOSTLY LARGE PHENOS WHICH ARE SUBROUNDED(LACKS
GOOD XTL SHAPE) & SOME ALSO HAVE INCLUDED
FRAGMENTS;
OLIVINE
CLINOPYROXENE
Replacement: SMECTITE
ID SMEC VEINS UNCERTAIN IN PCES 1C+1E;
Leg : 74 Top/Bottom Interval(mm): 0/1500 Analyst: Borella, P.E.
Hole: 527 Sample Midpoint (m) : 344.50
Core: 39 Top of Core Depth (m) : 341.50
Sect: 2 Top of Section Depth(m): 343.00
LITHOLOGY: PLAG-OL-CPX SPARSELY TO MOD PHYRIC BASALT;
MASSIVE BASALT;
Piece No. : PCES 1A (0-7), 1B (7-25), 1C (25-34), 1D (35-41),
1E (42-73), 1F (73-90), 1G (90-147);
Texture : SPARSELY TO MOD PHYRIC,NO GLASSY MARGINS,FINE-
GRAINED;
Structure : MASSIVE BASALT,PCE 1B HAS SMEC & PYR VEIN,PCE 1D HAS
CALCITE VEIN,VEINS WITH UNKNOWN FILLING IN PCES
1A+1G;
Alteration : MOD
Comments : CONTINUATION OF UNIT 1;
Phenocrysts: PLAGIOCLASE
OLIVINE
CLINOPYROXENE
Replacement: SMECTITE
CALCITE
UNIDENTIFIED
REPLACEMENT MINERALS ARE FOUND IN VEINS;
Leg : 74 Top/Bottom Interval(mm): 0/1400 Analyst: O'Connell, S.
Hole: 527 Sample Midpoint (m) : 345.90
Core: 39 Top of Core Depth (m) : 341.50
Sect: 3 Top of Section Depth(m): 344.50
LITHOLOGY: PLAG-OL-CPX SPARSELY TO MOD PHYRIC BASALT;
MASSIVE BASALT;
Piece No. : PCES 1A (1-2), 1B (1-2), 1C (2-41), 1D (41-48),
1E (45-48), 1F (48-53), 1G (53-84), 1H (84-87),
1I (88-107), 1J (107-116), 1K (116-140);
Texture : SPARSELY TO MOD PHYRIC,NO GLASS OBSERVED;
Structure : MASSIVE BASALT,THIN VEIN IN PCE 1I;
Alteration : MOD
ALTERATION VEIN IN PCE 1I;
Comments : CONTINUATION OF UNIT 1,MEDIUM GRAY BASALT;
Phenocrysts: PLAGIOCLASE
Size(mm): TO 5
OLIVINE
CLINOPYROXENE
OL GRAINS ARE DARK GREEN & SUB-TO-ANHEDRAL,SOME OL
ENCLOSED BY LARGE PLAG GRAINS(?),SOME PLAG ARE TO
5MM LONG & ARE LATH-LIKE,OTHER PLAG ARE ROUNDED &
THEREFORE THEIR ID AS PLAG IS QUESTIONABLE;
Leg : 74 Top/Bottom Interval(mm): 0/ 550 Analyst: O'Connell, S.
Hole: 527 Sample Midpoint (m) : 346.55
Core: 39 Top of Core Depth (m) : 341.50
Sect: 4 Top of Section Depth(m): 346.00
LITHOLOGY: PLAG-OL-CPX SPARSELY TO MOD PHYRIC BASALT;
MASSIVE BASALT;
Piece No. : PCES 1A (1-10), 1B (10-20), 1C (21-28), 1D (28-42),
1E (43-53);
Texture : SPARSELY TO MOD PHYRIC,NO GLASS;
Structure : MASSIVE BASALT;
Alteration : MOD
Comments : MEDIUM GRAY BASALT,PCE 1E ENDS UNIT 1;
Phenocrysts: PLAGIOCLASE
OLIVINE
CLINOPYROXENE
Leg : 74 Top/Bottom Interval(mm): 0/1400 Analyst: Borella, P.E.
Hole: 527 Sample Midpoint (m) : 347.90
Core: 40 Top of Core Depth (m) : 346.50
Sect: 1 Top of Section Depth(m): 346.50
LITHOLOGY: PLAG-OL-CPX SPARSELY PHYRIC BASALT;
MASSIVE BASALT;
Piece No. : PCES 1 (0-8), 2 (12-17), 3A (21-40), 3B (41-52),
3C (52-63), 3D (63-72), 3E (72-81), 3F (81-95),
3G (95-110), 3H (110-121), 3I (122-133),
3J (134-136);
Texture : SPARSELY PHYRIC,PCE 1A HAS GLASS RIND & COMPRISES A
COOLING UNIT CHILLED MARGIN,BOTTOM OF PCE 3I IS VERY
FINE-GRAINED & REPRESENTS LOWER CHILLED MARGIN OF
THE COOLING UNIT,FINE-GRAINED;
Structure : MASSIVE BASALT,FRACTURED NON-CALCAREOUS VEIN IS
PRESENT IN PCES 3B-3D(ZEOL?);
Alteration : MOD
Comments : ENTIRE SECTION COMPRISES UNIT 2,MEDIUM GRAY BASALT;
Leg : 74 Top/Bottom Interval(mm): 40/ 60 Analyst: O'Connell, S.
Hole: 527 Sample Midpoint (m) : 348.06
Core: 40 Top of Core Depth (m) : 346.50
Sect: 2 Top of Section Depth(m): 348.04
LITHOLOGY: SEDIMENT;
LIMESTONE;
Leg : 74 Top/Bottom Interval(mm): 80/1420 Analyst: O'Connell, S.
Hole: 527 Sample Midpoint (m) : 349.42
Core: 40 Top of Core Depth (m) : 346.50
Sect: 2 Top of Section Depth(m): 348.08
LITHOLOGY: PLAG-OL-CPX SPARSELY PHYRIC BASALT;
Piece No. : PCES 1A (8-13), 1B (14-21), 1C (21-30), 1D (30-36),
1E (36-44), 1F (45-84), 1G (85-96), 1H (96-105),
1I (105-142);
Texture : SPARSELY PHYRIC,PCE 1A IS VERY FINE-GRAINED
PARTICULARLY AT THE TOP,PCES 1B-1C ARE FINER-GRAINED
THAN UNDERLYING BASALT;
Alteration : EXT
PCES 1A-1C HAVE BEEN ALTERED TO A GREEN SMEC-LIKE
SUBSTANCE;
MOD
PCES 1D-1I;
Comments : PCE 1A BEGINS UNIT 3,PCES 1A-1C GREEN,PCES 1D-1I ARE
MEDIUM-GRAY BASALT;
Vesicles : LARGE ALTERED VESICLES;
Phenocrysts: PLAGIOCLASE
OLIVINE
CLINOPYROXENE
Size(mm): TO 20
LARGE PLAG PHENOS,OL PRESENT IN MATRIX & IN PLAG
PHENOS;
Replacement:
SMALL PCES OF PYR OCCUR IN ALTERED AREAS OF
PCE 1A;
SMECTITE
PCES 1A-1C ALTERED TO GREEN SMEC-LIKE MATERIAL;
Leg : 74 Top/Bottom Interval(mm): 0/1500 Analyst: Richardson, S.H.
Hole: 527 Sample Midpoint (m) : 352.00
Core: 41 Top of Core Depth (m) : 350.50
Sect: 1 Top of Section Depth(m): 350.50
LITHOLOGY: PLAG-CPX-OL SPARSELY PHYRIC BASALT;
MASSIVE BASALT;
Piece No. : PCES 1A (1-32), 1B (31-41), 1C (42-48), 1D (48-96),
1E (90-96), 1F (97-107), 1G (107-115), 1H (115-122),
1I (122-139), 1J (138-147),1K (145-150);
Texture : SPARSELY PHYRIC,NO APPARENT CHILLED MARGINS;
Structure : MASSIVE BASALT,THIN 1MM DARK GREEN SMEC-FILLED VEINS
IN PCES 1F-1I;
Alteration : MOD
SOME ADJACENT BASALT GNDMASS SHOWS ALTERATION TO
GREEN CLAY.MIN;
Comments : MEDIUM GRAY BASALT,CONTINUATION OF UNIT 3;
Vesicles : Size(mm): 1-2 Percent:
Location: Filling: CLAY.MIN
VERY SPARSE SCATTERED VESICLES FILLED WITH OLIVE
GREEN CLAY.MIN;
Phenocrysts: PLAGIOCLASE
Size(mm): 2-20
STUBBY LATHS;
OLIVINE
Size(mm): TO 2
SPARSE OL GENERALLY REPLACED BY GREEN CLAY.MIN;
Replacement: CLAY MINERALS
Minerals Replaced: OL
GREEN CLAY.MIN GENERALLY REPLACING OL;
SMECTITE
DARK GREEN SMEC FILLS VEINS IN PCES 1F-1I;
Leg : 74 Top/Bottom Interval(mm): 0/1400 Analyst: Richardson, S.H.
Hole: 527 Sample Midpoint (m) : 353.40
Core: 41 Top of Core Depth (m) : 350.50
Sect: 2 Top of Section Depth(m): 352.00
LITHOLOGY: PLAG-CPX-OL PHYRIC BASALT;
Piece No. : PCES 1A (1-12), 1B (12-20), 1C (20-27), 1D (26-45),
1E (44-57), 1F (56-68), 1G (67-75), 1H (75-84),
1I (84-90), 1J (91-99), 1K (98-103), 1L (104-113),
1M (113-121), 1N (121-132),1O (132-140);
Texture : PHYRIC,MEDIUM-GRAINED,IDENTICAL TO CORE 41-1;
Alteration : MOD
Comments : MEDIUM-GRAY BASALT,CONTINUATION OF UNIT 3;
Phenocrysts: PLAGIOCLASE
CLINOPYROXENE
OLIVINE
Leg : 74 Top/Bottom Interval(mm): 0/1400 Analyst: Richardson, S.H.
Hole: 527 Sample Midpoint (m) : 354.90
Core: 41 Top of Core Depth (m) : 350.50
Sect: 3 Top of Section Depth(m): 353.50
LITHOLOGY: PLAG-CPX-OL PHYRIC BASALT;
Piece No. : PCES 1A (0-17), 1B (17-32), 1C (32-50), 1D (50-62),
1E (63-71), 1F (71-77), 1G (77-84), 1H (84-88),
1I (87-100), 1J (100-106), 1K (106-117),
1L (117-123), 1M (125-137);
Texture : PHYRIC,MEDIUM-GRAINED,ESSENTIALLY SAME AS CORES 41-1
& 41-2;
Alteration : MOD
Comments : MEDIUM GRAY BASALT,CONTINUATION OF UNIT 3;
Phenocrysts: PLAGIOCLASE
CLINOPYROXENE
OLIVINE
PERHAPS GRADUAL INCREASE IN OL MICROPHENO
ABUNDANCE;
Leg : 74 Top/Bottom Interval(mm): 0/1350 Analyst: Richardson, S.H.
Hole: 527 Sample Midpoint (m) : 356.35
Core: 41 Top of Core Depth (m) : 350.50
Sect: 4 Top of Section Depth(m): 355.00
LITHOLOGY: PLAG-CPX-OL PHYRIC BASALT;
Piece No. : PCES 1A (1-31), 1B (31-42), 1C (42-49), 1D (50-59),
1E (60-90), 1F (90-100), 1G (100-110),
1H (110-125), 1I (126-130);
Texture : PHYRIC,MEDIUM-GRAINED;
Structure : PCES 1B-1F TRAVERSED BY CARB.UNSPEC VEIN LINED WITH
GREEN CLAY.MIN;
Alteration : MOD
ASSOCIATED PALE BROWN OXIDATION HALO OBSERVED IN
SURROUNDING BASALT GNDMASS;
Comments : PCE 1I ENDS UNIT 3,UNIT 3 IS PERHAPS A SINGLE
COOLING UNIT;
Phenocrysts: PLAGIOCLASE
OLIVINE
CLINOPYROXENE
VERY SPARSE OL MICROPHENOS;
Replacement: CARBONATE
CARB.UNSPEC VEIN TRAVERSES PCES 1B-1F;
CLAY MINERALS
GREEN CLAY.MIN LINES CARB.UNSPEC VEIN IN PCES
1B-1F;
Leg : 74 Top/Bottom Interval(mm): 0/ 570 Analyst: Richardson, S.H.
Hole: 527 Sample Midpoint (m) : 357.07
Core: 41 Top of Core Depth (m) : 350.50
Sect: 5 Top of Section Depth(m): 356.50
LITHOLOGY: SEDIMENT;
Leg : 74 Top/Bottom Interval(mm): 570/1050 Analyst: Richardson, S.H.
Hole: 527 Sample Midpoint (m) : 357.55
Core: 41 Top of Core Depth (m) : 350.50
Sect: 5 Top of Section Depth(m): 357.07
LITHOLOGY: PLAG SPARSELY PHYRIC BASALT;
Piece No. : PCES 1A (57-62), 1B (63-66), 1C (67-73), 2A (75-84),
2B (75-79), 2C (79-84), 3A (87-91), 3B (87-93),
4A (95-105), 4B (100-105);
Texture : PHYRIC,FINE-GRAINED,PCE 1A IS A CHILLED FLOW OR
PILLOW MARGIN WITH ALT.GLAS RIND;
Alteration : MOD TO EXT
PCES 1A-1C,PCE 1A HAS GLASS RIND ALTERED TO PALE
GREEN PALAG & CLAY.MIN;
Comments : PCE 1A BEGINS UNIT 4,MEDIUM GRAY BASALT;
Phenocrysts: PLAGIOCLASE
Replacement: PALAGONITE
Minerals Replaced: GLASS
CLAY MINERALS
Minerals Replaced: GLASS
PCE 1A GLASSY MARGIN ALTERED TO PALE GREEN PALAG &
CLAY.MIN;
Leg : 74 Top/Bottom Interval(mm): 0/ 70 Analyst: Richardson, S.H.
Hole: 527 Sample Midpoint (m) : 359.57
Core: 42 Top of Core Depth (m) : 359.50
Sect: 1 Top of Section Depth(m): 359.50
LITHOLOGY: PLAG SPARSELY PHYRIC BASALT;
Piece No. : PCE 1 (0-7);
Texture : SPARSELY PHYRIC,FINE-GRAINED,IDENTICAL TO BASALT IN
LATTER HALF OF CORE 42-5;
Alteration : MOD
Comments : MEDIUM GRAY BASALT,PCE 1 ENDS UNIT 4;
Phenocrysts: PLAGIOCLASE
Leg : 74 Top/Bottom Interval(mm): 70/1500 Analyst: Richardson, S.H.
Hole: 527 Sample Midpoint (m) : 361.00
Core: 42 Top of Core Depth (m) : 359.50
Sect: 1 Top of Section Depth(m): 359.57
LITHOLOGY: SEDIMENT;
Leg : 74 Top/Bottom Interval(mm): 0/1500 Analyst: Richardson, S.H.
Hole: 527 Sample Midpoint (m) : 362.50
Core: 42 Top of Core Depth (m) : 359.50
Sect: 2 Top of Section Depth(m): 361.00
LITHOLOGY: SEDIMENT;
Leg : 74 Top/Bottom Interval(mm): 0/ 500 Analyst: Richardson, S.H.
Hole: 527 Sample Midpoint (m) : 363.00
Core: 42 Top of Core Depth (m) : 359.50
Sect: 3 Top of Section Depth(m): 362.50
LITHOLOGY: SEDIMENT;
Leg : 74 Top/Bottom Interval(mm): 500/1500 Analyst: Richardson, S.H.
Hole: 527 Sample Midpoint (m) : 364.00
Core: 42 Top of Core Depth (m) : 359.50
Sect: 3 Top of Section Depth(m): 363.00
LITHOLOGY: APHYRIC BASALT;
MASSIVE BASALT;
Piece No. : PCES 1A (51-53), 1B (55-62), 1C (63-70), 1D (70-73),
1E (74-133), 1F (133-150);
Texture : APHYRIC,FINE-GRAINED;
Structure : MASSIVE BASALT,BLUE CLAY.MINS FILL SCATTERED VOIDS;
Alteration : MOD TO EXT
Comments : PCE 1A BEGINS UNIT 5;
Leg : 74 Top/Bottom Interval(mm): 0/1500 Analyst: Richardson, S.H.
Hole: 527 Sample Midpoint (m) : 365.50
Core: 42 Top of Core Depth (m) : 359.50
Sect: 4 Top of Section Depth(m): 364.00
LITHOLOGY: APHYRIC BASALT;
MASSIVE BASALT;
Piece No. : PCES 1A (0-20), 1B (21-36), 1C (36-57), 1D (57-92),
1E (92-104), 1F (104-122), 1G (122-135),
1H (135-150);
Texture : APHYRIC,SAME AS CORE 42-3;
Structure : MASSIVE BASALT,DARK GREEN CLAY.MIN FILLING OF
SCATTERED VOIDS & VEINS;
Alteration : MOD TO EXT
Comments : CONTINUATION OF UNIT 5,MEDIUM GRAY BASALT;
Replacement: CLAY MINERALS
DARK GREEN CLAY.MIN FILLS VOIDS & VEINS;
Leg : 74 Top/Bottom Interval(mm): 0/ 400 Analyst: Richardson, S.H.
Hole: 527 Sample Midpoint (m) : 365.90
Core: 42 Top of Core Depth (m) : 359.50
Sect: 5 Top of Section Depth(m): 365.50
LITHOLOGY: APHYRIC BASALT;
MASSIVE BASALT;
Piece No. : PCE 1 (2-37);
Texture : APHYRIC,FINE-GRAINED,SAME AS CORES 42-3 & 42-4;
Structure : MASSIVE BASALT;
Alteration : MOD TO EXT
Comments : CONTINUATION OF UNIT 5,MEDIUM GRAY BASALT;
Leg : 74 Top/Bottom Interval(mm): 0/1500 Analyst: Richardson, S.H.
Hole: 527 Sample Midpoint (m) : 370.00
Core: 43 Top of Core Depth (m) : 368.50
Sect: 1 Top of Section Depth(m): 368.50
LITHOLOGY: APHYRIC BASALT;
MASSIVE BASALT;
Piece No. : PCES 1A (1-29), 1B (28-53), 1C (53-68), 1D (68-101),
1E (101-128), 1F (127-131), 1G (131-149);
Texture : APHYRIC,MEDIUM-GRAINED;
Structure : MASSIVE BASALT;
Alteration : MOD TO EXT
Comments : MEDIUM GRAY BASALT,CONTINUATION OF UNIT 5;
Leg : 74 Top/Bottom Interval(mm): 0/1500 Analyst: Richardson, S.H.
Hole: 527 Sample Midpoint (m) : 371.50
Core: 43 Top of Core Depth (m) : 368.50
Sect: 2 Top of Section Depth(m): 370.00
LITHOLOGY: APHYRIC BASALT;
MASSIVE BASALT;
Piece No. : PCES 1A (1-12), 1B (12-48), 1C (47-57), 1D (58-89),
1E (88-106), 1F (106-117), 1G (117-149);
Texture : APHYRIC,MEDIUM-GRAINED,SAME AS CORE 43-1,ZONE
BETWEEN 36-66CM IS COARSE-GRAINED & PEGMATITIC;
Structure : FEW THIN VEINS ARE FILLED WITH DARK GREEN SMEC &
MINOR PYR,MASSIVE BASALT;
Alteration : MOD TO EXT
Comments : CONTINUATION OF UNIT 5,MEDIUM GRAY BASALT;
Phenocrysts: PLAGIOCLASE
Size(mm): TO 5
ELONGATE PLAG LATHS TOWARDS THE TOP OF SECTION;
Replacement: SMECTITE
DARK GREEN SMEC FILLS A FEW THIN VEINS;
MINOR PYR FOUND IN THIN VEINS;
Leg : 74 Top/Bottom Interval(mm): 0/1400 Analyst: Richardson, S.H.
Hole: 527 Sample Midpoint (m) : 372.90
Core: 43 Top of Core Depth (m) : 368.50
Sect: 3 Top of Section Depth(m): 371.50
LITHOLOGY: APHYRIC BASALT;
MASSIVE BASALT;
Piece No. : PCES 1A (0-7), 1B (7-34), 1C (34-92), 1D (92-102),
1E (102-140);
Texture : APHYRIC,COARSE-GRAINED,SAME AS CORE 43-2,PATCHY
DISTRIBUTION OF COARSE-GRAINED BASALT;
Structure : THIN VEINS ARE FILLED WITH DARK GREEN SMEC & PYR IN
PCE 1C;
Alteration : MOD TO EXT
Comments : MEDIUM GRAY BASALT,CONTINUATION OF UNIT 5;
Replacement: SMECTITE
DARK GREEN SMEC FILLS THIN VEINS IN PCE 1C;
PYR FILLS THIN VEINS IN PCE 1C & IS EVIDENT IN
COARSE-GRAINED GNDMASS IN PCE 1C;
Leg : 74 Top/Bottom Interval(mm): 0/1450 Analyst: Richardson, S.H.
Hole: 527 Sample Midpoint (m) : 374.45
Core: 43 Top of Core Depth (m) : 368.50
Sect: 4 Top of Section Depth(m): 373.00
LITHOLOGY: APHYRIC BASALT;
MASSIVE BASALT;
Piece No. : PCES 1A (0-27), 1B (28-62), 1C (62-113),
1D (113-145);
Texture : APHYRIC,MEDIUM-TO-COARSE-GRAINED,SAME AS CORE 43-3;
Structure : 3-4MM THICK DARK GREEN SMEC-FILLED VEIN TRAVERSES
PCE 1D,MASSIVE BASALT;
Alteration : MOD TO EXT
Comments : MEDIUM GRAY BASALT,CONTINUATION OF UNIT 5;
Replacement: SMECTITE
3-4MM THICK DARK GREEN SMEC-FILLED VEIN TRAVERSES
PCE 1D;
Leg : 74 Top/Bottom Interval(mm): 0/ 350 Analyst: Richardson, S.H.
Hole: 527 Sample Midpoint (m) : 374.85
Core: 43 Top of Core Depth (m) : 368.50
Sect: 5 Top of Section Depth(m): 374.50
LITHOLOGY: APHYRIC BASALT;
MASSIVE BASALT;
Piece No. : PCES 1A (0-10), 1B (10-35);
Texture : APHYRIC,MEDIUM-TO-COARSE-GRAINED,SAME AS CORE 43-4;
Alteration : MOD TO EXT
Comments : MEDIUM-GRAY BASALT,CONTINUATION OF UNIT 5;
Leg : 74 Top/Bottom Interval(mm): 0/1500 Analyst: Richardson, S.H.
Hole: 527 Sample Midpoint (m) : 379.00
Core: 44 Top of Core Depth (m) : 377.50
Sect: 1 Top of Section Depth(m): 377.50
LITHOLOGY: APHYRIC BASALT;
MASSIVE BASALT;
Piece No. : PCES 1A (1-20), 1B (20-25), 1C (22-51), 1D (51-64),
1E (65-86), 1F (87-132), 1G (132-149);
Texture : APHYRIC,MEDIUM-GRAINED,ABRUPT 3OMM WIDE FINE-GRAINED
ZONE AT 95CM DEPTH;
Structure : THIN VEINS ARE FILLED WITH GREEN SMEC & MINOR PYR,
MASSIVE BASALT;
Alteration : MOD TO EXT
Comments : CONTINUATION OF UNIT 5,MEDIUM GRAY BASALT;
Phenocrysts: PLAGIOCLASE
Size(mm): 2-5
SCATTERED PLAG PHENOS;
Replacement: SMECTITE
GREEN SMEC FILLS THIN VEINS;
MINOR PYR FILLS VEINS;
Leg : 74 Top/Bottom Interval(mm): 0/1500 Analyst: Richardson, S.H.
Hole: 527 Sample Midpoint (m) : 380.50
Core: 44 Top of Core Depth (m) : 377.50
Sect: 2 Top of Section Depth(m): 379.00
LITHOLOGY: APHYRIC BASALT;
MASSIVE BASALT;
Piece No. : PCES 1A (0-48), 1B (48-77), 1C (70-105),
1D (105-150);
Texture : APHYRIC,MEDIUM-GRAINED,SAME AS CORE 44-1;
Structure : MASSIVE BASALT;
Alteration : MOD TO EXT
Comments : CONTINUATION OF UNIT 5,MEDIUM GRAY BASALT;
Leg : 74 Top/Bottom Interval(mm): 0/1500 Analyst: Richardson, S.H.
Hole: 527 Sample Midpoint (m) : 382.00
Core: 44 Top of Core Depth (m) : 377.50
Sect: 3 Top of Section Depth(m): 380.50
LITHOLOGY: APHYRIC BASALT;
MASSIVE BASALT;
Piece No. : PCES 1A (1-4), 1B (4-34), 1C (34-66), 1D (65-100),
1E (99-115), 1F (115-136), 1G (135-150);
Texture : APHYRIC,MEDIUM-GRAINED,SAME AS CORE 44-2;
Structure : MASSIVE BASALT;
Alteration : MOD TO EXT
Comments : CONTINUATION OF UNIT 5,MEDIUM GRAY BASALT;
Phenocrysts: PLAGIOCLASE
VERY SPARSE;
Leg : 74 Top/Bottom Interval(mm): 0/1500 Analyst: Richardson, S.H.
Hole: 527 Sample Midpoint (m) : 383.50
Core: 44 Top of Core Depth (m) : 377.50
Sect: 4 Top of Section Depth(m): 382.00
LITHOLOGY: APHYRIC BASALT;
MASSIVE BASALT;
Piece No. : PCES 1A (1-4), 1B (4-22), 1C (21-49), 1D (49-61),
1E (62-86), 1F (86-119), 1G (119-150);
Texture : APHYRIC,MEDIUM-GRAINED,SAME AS CORE 44-3;
Structure : MASSIVE BASALT;
Alteration : MOD TO EXT
Comments : CONTINUATION OF UNIT 5,MEDIUM GRAY BASALT;
Phenocrysts: PLAGIOCLASE
VERY SPARSE;
Leg : 74 Top/Bottom Interval(mm): 0/ 650 Analyst: Richardson, S.H.
Hole: 527 Sample Midpoint (m) : 384.15
Core: 44 Top of Core Depth (m) : 377.50
Sect: 5 Top of Section Depth(m): 383.50
LITHOLOGY: APHYRIC BASALT;
MASSIVE BASALT;
Piece No. : PCES 1A (2-3), 1B (3-10), 1C (9-25), 1D (27-35),
1E (37-65);
Texture : APHYRIC,MEDIUM-GRAINED,SAME AS CORE 44-4;
Structure : MASSIVE BASALT;
Alteration : MOD TO EXT
PCES 1A-1D;
EXT
PYR OCCURS IN GNDMASS OF PCE 1E WHICH ALSO
DISPLAYS AN ALTERATION HALO(?) RUNNING THE LENGTH
OF THE PCE;
Comments : CONTINUATION OF UNIT 5,MEDIUM-GRAY BASALT;
Phenocrysts: PLAGIOCLASE
VERY SPARSE;
Replacement:
OCCURS IN GNDMASS OF PCE 1E;
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