Leg : 80 Top/Bottom Interval(mm): 850/1000 Analyst: Masson, D.G.
Hole: 550B Sample Midpoint (m) : 685.50
Core: 25 Top of Core Depth (m) : 680.00
Sect: 4 Top of Section Depth(m): 685.35
LITHOLOGY: PLAG MOD PHYRIC BASALT;
Piece No. : PCES NO PCE NUMBERS ASSIGNED,INTERVAL 85-100CM;
Texture : FINE-GRAINED,MOD PHYRIC;
Structure : COMMON CALCITE-FILLED FRACTURES;
Comments : DARK GREEN BASALT,LARGE CLEAR WHITE & GREEN
UNIDENT.MINS SCATTERED THROUGHOUT;
Phenocrysts: PLAGIOCLASE
Replacement: CALCITE
CALCITE-FILLED FRACTURES;
Leg : 80 Top/Bottom Interval(mm): 0/ 500 Analyst: Masson, D.G.
Hole: 550B Sample Midpoint (m) : 685.99
Core: 25 Top of Core Depth (m) : 680.00
Sect: CC Top of Section Depth(m): 685.59
LITHOLOGY: PLAG MOD PHYRIC BASALT;
Piece No. : PCES NO PCE NUMBERS ASSIGNED,INTERVAL 85-100CM;
Texture : FINE-GRAINED,MOD PHYRIC,SAME BASALT AS IN CORE 25-4;
Structure : COMMON CALCITE-FILLED FRACTURES;
Comments : DARK GREEN BASALT,LARGE CLEAR WHITE & GREEN
UNIDENT.MINS SCATTERED THROUGHOUT;
Phenocrysts: PLAGIOCLASE
Replacement: CALCITE
CALCITE-FILLED FRACTURES;
Leg : 80 Top/Bottom Interval(mm): 0/1500 Analyst: DeGraciansky, P.C.
Hole: 550B Sample Midpoint (m) : 690.50
Core: 26 Top of Core Depth (m) : 689.00
Sect: 1 Top of Section Depth(m): 689.00
LITHOLOGY: PLAG MOD PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1 (0-18), 2 (19-28), 3A (29-43), 3B (36-56),
3C (57-62), 4A (65-74), 4B (70-73), 4C (74-82),
5A (84-106), 5B (108-111), 6 (114-128), 7 (131-140),
8 (142-149);
Texture : MOD PHYRIC,WELL DEFINED CHILLED MARGIN 1-2CM THICK
ON BASE OF PCE 5A,CHLORITIC GLASS ON TOP OF PCE 3A;
Structure : CALCITE & CHLORITE VEINS THROUGHOUT,FRACTURED,PILLOW
BASALT;
Alteration : LOOKS VERY FRESH,DEVITRIFIED GLASS REPLACED BY
SMEC,HYALOCLASTITES BETWEEN PILLOWS COMPRISE
MOSTLY CALCITE & SMEC & MIXED LAYERED CLAY.MINS;
Comments : DARK-GRAY-TO-BLACK BASALT,PCES 3A-4C POSSIBLY MAKE
UP ONE PILLOW;
Vesicles : Size(mm): Percent: <5
Location: Filling: CARB.UNSPEC
VESICLES CONCENTRATED TOWARDS THE TOP PART OF
PILLOWS & ARE FILLED WITH CARB.UNSPEC;
Phenocrysts: PLAGIOCLASE ( 7-10%)
Size(mm): 0.5-9.5
EUHEDRAL PLAG;
Replacement: CALCITE
CARBONATE
SMECTITE
CHLORITE
ALL ABOVE REPLACEMENT MINERALS ARE FOUND IN VEINS;
SMECTITE
Minerals Replaced: GLASS
CLAY MINERALS
CLAY.MIN FOUND BETWEEN PILLOWS,LAYERED;
Leg : 80 Top/Bottom Interval(mm): 0/1450 Analyst: DeGraciansky, P.C.
Hole: 550B Sample Midpoint (m) : 691.95
Core: 26 Top of Core Depth (m) : 689.00
Sect: 2 Top of Section Depth(m): 690.50
LITHOLOGY: PLAG MOD PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1 (1-22), 2 (25-33), 3 (35-49), 4 (51-57),
5A (60-79), 5B (74-85), 6 (90-98), 7 (101-104),
8 (106-109), 9 (111-128), 10 (130-140);
Texture : MOD PHYRIC,TOP OF PILLOW HAS DISPLACED CHILLED
MARGINS WITHIN VOLCANIC GLASS,SIMILAR COMPOSITION &
TEXTURE AS CORE 26-1;
Structure : CALCITE & CARB.UNSPEC VEINS THROUGHOUT,FRACTURED,
THREE PILLOWS(0-50+60-110+110-145CM);
Alteration : LOOKS VERY FRESH;
Comments : DARK GRAY TO BLACK BASALT,PCE 4 MADE UP OF FOUR
FRAGMENTS-ONE OF WHICH IS CALCAREOUS MUDSTONE;
Phenocrysts: PLAGIOCLASE
Replacement: CALCITE
CARBONATE
CALCITE & CARB.UNSPEC VEINS;
Leg : 80 Top/Bottom Interval(mm): 0/ 330 Analyst: DeGraciansky, P.C.
Hole: 550B Sample Midpoint (m) : 692.33
Core: 26 Top of Core Depth (m) : 689.00
Sect: 3 Top of Section Depth(m): 692.00
LITHOLOGY: PLAG MOD PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1 (1-13), 2 (15-17), 3 (20-32);
Texture : MOD PHYRIC,SIMILAR COMPOSITION & TEXTURE TO CORES
26-1 & 26-2;
Structure : PILLOW BASALT;
Comments : DARK-GRAY-TO-BLACK BASALT;
Phenocrysts: PLAGIOCLASE
Replacement: CALCITE
SPARRY CALCITE FOUND IN PCE 3;
Leg : 80 Top/Bottom Interval(mm): 330/ 500 Analyst: DeGraciansky, P.C.
Hole: 550B Sample Midpoint (m) : 692.50
Core: 26 Top of Core Depth (m) : 689.00
Sect: 3 Top of Section Depth(m): 692.33
LITHOLOGY: SEDIMENT;
Piece No. : PCES 4 (34-44), 5 (47-50);
Leg : 80 Top/Bottom Interval(mm): 500/1500 Analyst: DeGraciansky, P.C.
Hole: 550B Sample Midpoint (m) : 693.50
Core: 26 Top of Core Depth (m) : 689.00
Sect: 3 Top of Section Depth(m): 692.50
LITHOLOGY: APHYRIC BASALT;
MASSIVE BASALT;
PILLOW BASALT;
Piece No. : PCES 6 (54-68), 7 (70-79), 8 (82-99), 9A (102-132),
9B (132-138), 10 (141-147);
Texture : APHYRIC,FINE-GRAINED;
Structure : SOME PCES HAVE FRACTURES FILLED WITH CALCITE OR
SMEC,MASSIVE PILLOW BASALT;
Comments : VERY DARK GRAY BASALT,PCE 6 HAS SOME AREAS WHICH
CONTAIN CALCAREOUS BRECCIA(TOP IS BOUNDARY OF FLOW
UNIT);
Replacement: CALCITE
SMECTITE
CALCITE OR SMEC FILL FRACTURES;
Leg : 80 Top/Bottom Interval(mm): 0/1500 Analyst: Masson, D.G.
Hole: 550B Sample Midpoint (m) : 695.00
Core: 27 Top of Core Depth (m) : 693.50
Sect: 1 Top of Section Depth(m): 693.50
LITHOLOGY: APHYRIC BASALT;
PILLOW BASALT;
MASSIVE BASALT;
Piece No. : PCES 1A (0-25), 1B (24-45), 1C (48-50), 1D (50-53),
1E (50-53), 2 (55-58), 3A (60-78), 3B (80-98),
5 (115-146);
Texture : APHYRIC,FINE-GRAINED;
Structure : MASSIVE PILLOW BASALT,FRACTURED,VEINS & FRACTURES
FILLED WITH CARB.UNSPEC;
Alteration : PREDOMINANTLY UNALTERED,ALTERATION AREAS ON TOP OF
PCE 3A & NEAR BOTTOM OF PCE 3B;
Comments : DARK GRAY BASALT;
Vesicles : Size(mm): Percent: 0
PCE 5 HAS A FEW DARK GREEN AMYGDULES WITH VERY FEW
WHITE ONES;
Phenocrysts: PLAGIOCLASE ( RARE%)
FERRIC MINS (PHENOS) ( RARE%)
PHENOS COMPLETELY REPLACED BY FIBROUS UNIDENT.MIN;
Replacement: CALCITE
CALCITE VEINS;
UNIDENTIFIED
Minerals Replaced: PLAG,FE.MINS
FIBROUS UNIDENT.MINS REPLACE PLAG & FERRIC MINERAL
PHENOS;
Leg : 80 Top/Bottom Interval(mm): 1010/1130 Analyst: Masson, D.G.
Hole: 550B Sample Midpoint (m) : 694.63
Core: 27 Top of Core Depth (m) : 693.50
Sect: 1 Top of Section Depth(m): 694.51
LITHOLOGY: SEDIMENT;
Piece No. : PCES 4A (101-105), 4B (111-113), 4C (108-113);
Leg : 80 Top/Bottom Interval(mm): 0/1500 Analyst: Masson, D.G.
Hole: 550B Sample Midpoint (m) : 696.50
Core: 27 Top of Core Depth (m) : 693.50
Sect: 2 Top of Section Depth(m): 695.00
LITHOLOGY: APHYRIC BASALT;
PILLOW BASALT;
MASSIVE BASALT;
Piece No. : PCES 1 (0-20), 3A (27-51), 3B (51-75), 3C (76-95),
3D (95-106), 4 (108-113), 6 (129-143);
Texture : APHYRIC,FINE-GRAINED,SIMILAR TO CORE 27-1,TOP OF PCE
6 APPEARS TO HAVE A CHILLED MARGIN;
Structure : MASSIVE PILLOW BASALT,HIGHLY FRACTURED WITH
FRACTURES FILLED WITH CARB.UNSPEC,BASALT CLASTS IN
CALCITE VEIN ON TOP OF PCE 3A;
Comments : GRAY-TO-DARK-GRAY BASALT;
Vesicles : Size(mm): TO 1 Percent: TO 5
Location: Filling: CARB.UNSPEC
IN INTERVAL 50-60CM SMALL VESICLES FILLED WITH
WHITE CARB.UNSPEC,REMAINDER OF CORE HAS VERY FEW
VESICLES,CALCITE-FILLED AMYGDULES FOUND AT BASE OF
PCE 3A & TOP OF PCE 3B & MANY DARK-GREENISH-WHITE
AMYGDULES IN PCE 6;
Phenocrysts: PLAGIOCLASE
FEW PHENOS EXCEPT FOR PCES 3A-3B WHICH HAVE 5-10%
SMALL(1MM) DARK PHENOS;
Replacement: CALCITE
IN VEINS & AMYGDULES;
CARBONATE
CARB.UNSPEC FOUND IN VESICLES & AMYGDULES;
Leg : 80 Top/Bottom Interval(mm): 0/1500 Analyst: Masson, D.G.
Hole: 550B Sample Midpoint (m) : 696.50
Core: 27 Top of Core Depth (m) : 693.50
Sect: 2 Top of Section Depth(m): 695.00
LITHOLOGY: SEDIMENT;
Piece No. : PCES 2 (22-26), 5 (117-126);
Leg : 80 Top/Bottom Interval(mm): 0/1300 Analyst: Masson, D.G.
Hole: 550B Sample Midpoint (m) : 697.80
Core: 27 Top of Core Depth (m) : 693.50
Sect: 3 Top of Section Depth(m): 696.50
LITHOLOGY: APHYRIC BASALT;
PILLOW BASALT;
MASSIVE BASALT;
Piece No. : PCES 1A (0-18), 1B (14-28), 1C (28-53), 1D (53-64),
2A (65-70), 2B (71-78), 2C (82-90), 2D (90-114),
2E (112-129);
Texture : APHYRIC,FINE-GRAINED,FROM PCES 2C-2E GRAINSIZE
INCREASES FROM TOP TO BOTTOM;
Structure : MASSIVE PILLOW BASALT,HIGHLY FRACTURED WITH
FRACTURES FILLED WITH CARB.UNSPEC,CALCITE VEINS
THROUGHOUT;
Comments : DARK GRAY BASALT,PCES 2A-2B BASALTIC BRECCIA MADE UP
OF BASALT FRAGMENTS WITH HYALOCLASTIC MATRIX WITH
WHITE CALCITE WITHIN FRACTURES & PCE 2B HAS BASALT
FRAGMENTS WITHIN CHILLED MARGIN OF DEVT.GLAS;
Vesicles : Size(mm): Percent: 0
PCES 1A-1D NONVESICULAR;
Size(mm): 1 Percent: 5-50
Location: Filling: CARB,UNIDENT.MINS
Shape : ROUND
PCES 2A-2E HAVE SMALL VESICLES FILLED WITH
CARB.UNSPEC & SOME ROUNDED VESICLES(PHENOS?)
FILLED WITH DARK(GREEN?) UNIDENT.MINS,AMYGDULES OF
CALCITE & OF DARK GREEN UNIDENT.MINS(CHLORITIC?),
EDGE OF VUG IN PCE 1C HAS WELL-FORMED CALCITE(?)
XTLS(EUHEDRAL);
Replacement: CALCITE
CALCITE XTLS ON EDGE OF VUG IN PCE 1C(ID
UNCERTAIN),CALCITE XTLS IN VEINS,CALCITE AMYGDULES
CARBONATE
CARB.UNSPEC FILLS SOME VESICLES;
UNIDENTIFIED
DARK(GREEN?) UNIDENT.MINS FILL SOME VESICLES
(PHENOS?),AMYGDULES OF DARK GREEN MATERIAL ALSO
PRESENT;
Leg : 80 Top/Bottom Interval(mm): 0/1350 Analyst: Masson, D.G.
Hole: 550B Sample Midpoint (m) : 699.35
Core: 28 Top of Core Depth (m) : 698.00
Sect: 1 Top of Section Depth(m): 698.00
LITHOLOGY: APHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 1A (0-30), 1B (30-53), 1C (53-60), 2B (71-79),
2C (81-88), 3A (90-97), 3B (98-102), 4A (105-121),
4B (121-129), 4C (130-133);
Texture : APHYRIC,FINE-GRAINED,PCES 4A-4B HAVE CHILLED
MARGINS,TOP OF PCE 2B PROBABLY A CHILLED MARGIN;
Structure : PILLOW BASALT,HIGHLY FRACTURED WITH FRACTURES FILLED
WITH CARB.UNSPEC &(MORE RARELY) REDDISH & GREENISH
UNIDENT.MINS,CHILLED MARGINS ON PCES 4A-4B ARE
FRACTURED;
Alteration : PCE 3A HAS DEVT.GLAS;
Comments : DARK GRAY BASALT,PCES 2B-3B BRECCIA MADE UP OF
PILLOW FRAGMENTS & SEDIMENT IN A GLASSY MATRIX;
Vesicles : Size(mm): Percent: RARE
INTERVALS 12-60+76-105C+130-135CM;
Size(mm): Percent: TO 5
Location: Filling: CARB.UNSPEC
PCES 1A(0-12CM) & 2B+4A-4B(ALSO SOME SMALL BLACK
SPOTS(TO 5%) MAY BE VESICLES OR PHENOS);
Phenocrysts: UNIDENTIFIED ( RARE%)
WELL-FORMED(SUB-RECTANGULAR) UNIDENTIFIED PHENOS;
Replacement: CARBONATE
CARB.UNSPEC FILLS VESICLES & FRACTURES;
UNIDENTIFIED
REDDISH & GREENISH UNIDENT.MINS(MORE RARELY) FILL
FRACTURES;
UNIDENTIFIED
Minerals Replaced: GLASS
DEVT.GLAS NOTED IN PCE 3A;
Leg : 80 Top/Bottom Interval(mm): 630/ 700 Analyst: Masson, D.G.
Hole: 550B Sample Midpoint (m) : 698.70
Core: 28 Top of Core Depth (m) : 698.00
Sect: 1 Top of Section Depth(m): 698.63
LITHOLOGY: SEDIMENT;
Piece No. : PCE 2A (63-70);
Leg : 80 Top/Bottom Interval(mm): 0/1450 Analyst: Masson, D.G.
Hole: 550B Sample Midpoint (m) : 700.95
Core: 28 Top of Core Depth (m) : 698.00
Sect: 2 Top of Section Depth(m): 699.50
LITHOLOGY: SEDIMENT;
Piece No. : PCES 1A (0-2), 1B (3-15), 1C (15-18), 1E (23-27);
Leg : 80 Top/Bottom Interval(mm): 0/1450 Analyst: Masson, D.G.
Hole: 550B Sample Midpoint (m) : 700.95
Core: 28 Top of Core Depth (m) : 698.00
Sect: 2 Top of Section Depth(m): 699.50
LITHOLOGY: APHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCE 1D (18-22), 1F (27-29), 1G (29-39);
Texture : APHYRIC,FINE-GRAINED,CHILLED MARGIN & VOLCANIC GLASS
ON TOP OF PCE 1G;
Structure : CALCITE VEIN NEAR BOTTOM OF PCE 1G,PILLOW BASALT;
Comments : DARK GRAY BASALT;
Replacement: CALCITE
CALCITE VEIN NEAR BOTTOM OF PCE 1G;
Leg : 80 Top/Bottom Interval(mm): 410/1450 Analyst: Masson, D.G.
Hole: 550B Sample Midpoint (m) : 700.95
Core: 28 Top of Core Depth (m) : 698.00
Sect: 2 Top of Section Depth(m): 699.91
LITHOLOGY: PHYRIC BASALT;
PILLOW BASALT;
MASSIVE BASALT;
Piece No. : PCES 2A (41-56), 2B (54-75), 2C (75-92),
2D (92-125), 2E (125-145);
Texture : PHYRIC,FINE-GRAINED;
Structure : MASSIVE PILLOW BASALT,HIGHLY FRACTURED WITH
CARB.UNSPEC FILLING FRACTURES;
Comments : DARK GRAY BASALT;
Vesicles : Size(mm): Percent: <1
Location: Filling: CARB.UNSPEC
RARE VESICLES FILLED WITH WHITE CARB.UNSPEC;
Phenocrysts: UNIDENTIFIED (TO 10%)
UNIDENTIFIED PHENOS IN PCES 2A-2E;
Replacement: CARBONATE
CARB.UNSPEC FILLS FRACTURES & VESICLES;
Leg : 80 Top/Bottom Interval(mm): 0/1500 Analyst: DeGraciansky, P.C.
Hole: 550B Sample Midpoint (m) : 702.50
Core: 28 Top of Core Depth (m) : 698.00
Sect: 3 Top of Section Depth(m): 701.00
LITHOLOGY: PLAG PHYRIC BASALT;
PILLOW BASALT;
MASSIVE BASALT;
Piece No. : PCES 1A (1-11), 1B (12-22), 2A (25-29), 2B (30-62),
2C (62-100), 2D (100-131), 2E (130-140),
2F (139-146);
Texture : PHYRIC,SIMILAR COMPOSITION & TEXTURE AS CORE 28-2;
Structure : MASSIVE PILLOW BASALT,PCE 1B HAS CAVITY FILLED IN
PLACES BY SPARRY CALCITE & VOLCANIC SAND & GRAVELS,
VEINS THROUGHOUT ARE FILLED WITH CARB.UNSPEC & GREEN
UNIDENT.MIN,PCE 2C(84-92CM) HAS SEDIMENT FILLING A
FRACTURE,CALCITE VEIN CUTS THROUGH PCES 2D-2E;
Comments : DARK GRAY BASALT;
Vesicles : CALCITE-FILLED VUGS BECOMING LESS ABUNDANT
DOWNCORE;
Phenocrysts: PLAGIOCLASE ( TO 7%)
Size(mm): TO 10
PLAG PHENOS VARIABLE IN PERCENTAGE & SIZE
THROUGHOUT CORE(SOME MICROLITHS);
Replacement: CALCITE
SPARRY CALCITE FILLS CAVITY IN PCE 1B,CALCITE
FILLS VEINS & VUGS;
UNIDENTIFIED
GREENISH UNIDENT.MIN FILLS VEINS;
CARBONATE
CARB.UNSPEC FILLS VEINS;
Leg : 80 Top/Bottom Interval(mm): 0/1450 Analyst: Loubere, P.
Hole: 550B Sample Midpoint (m) : 703.95
Core: 28 Top of Core Depth (m) : 698.00
Sect: 4 Top of Section Depth(m): 702.50
LITHOLOGY: PHYRIC BASALT;
PILLOW BASALT;
MASSIVE BASALT;
Piece No. : PCES 1A (0-31), 1B (30-55), 1C (54-86), 1D (83-98),
1E (98-125), 1F (125-138), 1G (135-143);
Texture : PHYRIC,PORPHYRITIC,FAIRLY COARSE THROUGHOUT,SIMILAR
TO CORES 28-2 & 28-3,BOTTOM OF PCE 1G BECOMES FINER-
GRAINED(ALMOST APHYRIC);
Structure : MASSIVE PILLOW BASALT,FRACTURED AT 30+54+83+98+125+
135CM,OLIVE/WHITE UNIDENT.MIN VEINING;
Comments : DARK GRAY BASALT;
Phenocrysts: FELDSPAR
LARGE FELD XTLS;
FERROMAGNESIUM
DARK FE.MG XTLS SMALLER THAN FELD;
UNIDENTIFIED (10-15%)
LARGE WHITE XTLS;
Replacement: CALCITE
CALCITE XTLS AT BASE OF PCE 1G;
UNIDENTIFIED
OLIVE/WHITE UNIDENT.MIN VEINS;
Leg : 80 Top/Bottom Interval(mm): 0/1450 Analyst: Loubere, P.
Hole: 550B Sample Midpoint (m) : 705.45
Core: 28 Top of Core Depth (m) : 698.00
Sect: 5 Top of Section Depth(m): 704.00
LITHOLOGY: PLAG PHYRIC BASALT;
PILLOW BASALT;
MASSIVE BASALT;
Piece No. : PCES 1 (0-5), 2A (7-20), 2B (20-40), 2C (38-68),
2D (68-86), 2E (85-103), 3A (104-118), 2B (119-142);
Texture : PHYRIC,PCE 1 IS MADE UP OF 2 PCES OF GLASSY STRIATED
BASALT,PCE 2B IS SOMEWHAT COARSER THAN REST OF CORE;
Structure : MASSIVE PILLOW BASALT,CALCITE VEINS THROUGHOUT,ONE
VEIN IN PCE 2C HAS CLEAR NEEDLE SPARITIC CALCITE
XTLS SPANNING CRACK,EXTENSIVELY FRACTURED THROUGHOUT
BUT CEMENTED BY CALCITE,SOME VEINS HAVE DARK OLIVE-
GREEN MATERIAL(AMORPHOUS) & IN ONE CASE A VEIN
SPLITS A LARGE FELD XTL;
Comments : DARK GRAY BASALT,MINERALOGY DETERMINED FROM THIN
SECTION DATA;
Vesicles : Size(mm): TO 5 Percent: RARE
Location: Filling: CALCITE
VESICLE ABUNDANCE INCREASES TOWARD BASE;
Phenocrysts: PLAGIOCLASE ( 30%)
Size(mm): 0.5-2
EUHEDRAL;
OLIVINE ( 5%)
ID OL UNCERTAIN(DARK FE.MG MINERAL STRONGLY ETCHED
& REPLACED BY FIBROUS UNIDENT.MINS);
Replacement: CALCITE
CALCITE VEINS & VESICLES;
UNIDENTIFIED
DARK OLIVE-GREEN UNIDENT.MINS(AMORPHOUS) FOUND IN
SOME VEINS,FIBROUS UNIDENT.MIN REPLACES OL(?);
Leg : 80 Top/Bottom Interval(mm): 0/ 850 Analyst: DeGraciansky, P.C.
Hole: 550B Sample Midpoint (m) : 706.35
Core: 28 Top of Core Depth (m) : 698.00
Sect: 6 Top of Section Depth(m): 705.50
LITHOLOGY: PLAG PHYRIC BASALT;
PILLOW BASALT;
MASSIVE BASALT;
Piece No. : PCES 1 (1-40), 2 (42-53), 3A (55-76), 3B (75-85);
Texture : PHYRIC,BASE OF PCE 2 HAS CHILLED MARGIN;
Structure : MASSIVE PILLOW BASALT,FRACTURES FILLED WITH
CARB.UNSPEC,CALCITE FRACTURES FROM A DENSE NET;
Comments : DARK GRAY BASALT;
Vesicles : FEW CALCITIC AMYGDULES TO 1MM IN SIZE;
Phenocrysts: PLAGIOCLASE ( 5-10%)
MICROLITHS;
Replacement: CARBONATE
CARB.UNSPEC FILLS SOME FRACTURES;
CALCITE
SOME CALCITE-FILLED FRACTURES,FEW CALCITE-FILLED
AMYGDULES;
Leg : 80 Top/Bottom Interval(mm): 0/1450 Analyst: DeGraciansky, P.C.
Hole: 550B Sample Midpoint (m) : 703.95
Core: 29 Top of Core Depth (m) : 702.50
Sect: 1 Top of Section Depth(m): 702.50
LITHOLOGY: PLAG PHYRIC BASALT;
MASSIVE LAVA FLOWS;
Piece No. : PCES 1A (1-33), 1B (32-63), 2 (64-70), 3 (72-100),
4A (101-117), 4B (105-127), 4C (126-141);
Texture : PHYRIC;
Structure : MASSIVE LAVA FLOWS,CALCITE VEIN IN PCE 1A;
Comments : DARK GRAY BASALT,ENTIRE SECTION MAKES UP ONE FLOW
UNIT;
<1 CALCITE,SMEC
Vesicles : GREENISH VERY SMALL(<1MM) AMYGDULES WITH CALCITE
AT THE CORE & SMEC ON RIMS;
Phenocrysts: PLAGIOCLASE ( TO 7%)
PLAG PHENOS,SOMETIMES INTERGROWTHS WITH PYX
(TO 3MM) OR WITH FE.MG MINERAL(OL?) REPLACED BY
SECONDARY MINERAL;
PYROXENE
OLIVINE
ID OL UNCERTAIN;
Replacement: CALCITE
CALCITE AT CORE IN AMYGDULES;
SMECTITE
RIMS AMYGDULES;
UNIDENTIFIED
SECONDARY UNIDENT.MIN REPLACES INTERGROWTH OF PLAG
& FE.MG MINERAL(OL?);
Leg : 80 Top/Bottom Interval(mm): 0/1500 Analyst: DeGraciansky, P.C.
Hole: 550B Sample Midpoint (m) : 705.50
Core: 29 Top of Core Depth (m) : 702.50
Sect: 2 Top of Section Depth(m): 704.00
LITHOLOGY: PLAG MOD PHYRIC TO PHYRIC BASALT;
PILLOW BASALT;
MASSIVE LAVA FLOWS;
Piece No. : PCES 1A (0-7), 1B (7-53), 1C (53-90), 1D (88-109),
1E (109-119), 1F (119-149);
Texture : GRADATIONAL FROM MOD PHYRIC TO PHYRIC,GRAINSIZE
INCREASES DOWNCORE;
Structure : MASSIVE PILLOW LAVA FLOWS,PCE 1B HAS A FRACTURE ZONE
(SHEARING,SLICKENSIDE) NEAR THE TOP OF THE PCE,VEINS
OF CALCITE & SMEC THROUGHOUT;
Comments : DARK GRAY BASALT;
CARB
Vesicles : DARK-GREENISH CARB.UNSPEC AMYGDULES THROUGHOUT;
Phenocrysts: PLAGIOCLASE ( 1-10%)
Size(mm): TO 3
PHENOS INCREASE DOWNCORE;
Replacement: CALCITE
SMECTITE
CALCITE & SMEC FOUND IN VEINS & FRACTURES;
CARBONATE
DARK-GREENISH CARB.UNSPEC FILLS AMYGDULES;
Leg : 80 Top/Bottom Interval(mm): 0/1500 Analyst: DeGraciansky, P.C.
Hole: 550B Sample Midpoint (m) : 707.00
Core: 29 Top of Core Depth (m) : 702.50
Sect: 3 Top of Section Depth(m): 705.50
LITHOLOGY: PLAG MOD PHYRIC TO PHYRIC BASALT;
PILLOW BASALT;
MASSIVE LAVA FLOWS;
Piece No. : PCES 1 (1-8), 2A (9-43), 2B (43-80), 2C (77-92),
2D (90-97), 2E (96-122), 2F (123-133), 2G (133-139),
2H (139-149);
Texture : MOD PHYRIC TO PHYRIC,GRAINSIZE INCREASES TOWARD BASE
OF CORE,SIMILAR TO CORE 29-2;
Structure : MASSIVE PILLOW LAVA FLOWS;
Comments : DARK GRAY BASALT;
Vesicles : PCE 1 HAS DARK-GREENISH AMYGDULES;
Phenocrysts: PLAGIOCLASE ( 1-10%)
Size(mm): TO 3
Replacement: UNIDENTIFIED
DARK-GREENISH UNIDENT.MINS FILL AMYGDULES;
Leg : 80 Top/Bottom Interval(mm): 0/1500 Analyst: Loubere, P.
Hole: 550B Sample Midpoint (m) : 708.50
Core: 29 Top of Core Depth (m) : 702.50
Sect: 4 Top of Section Depth(m): 707.00
LITHOLOGY: FELD MOD PHYRIC TO PHYRIC BASALT;
PILLOW BASALT;
MASSIVE LAVA FLOWS;
Piece No. : PCES 1A (0-10), 1B (2-18), 1C (14-32), 1D (26-62),
2 (68-74), 3A (76-95), 3B (93-107), 3C (103-115),
3D (115-150);
Texture : MOD PHYRIC TO PHYRIC,PCES 1A-1D COARSE BUT MICROXLN,
PCE 2 APHYRIC & COARSE & ALMOST GABBROIC,PCES 3A-3D
ARE SIMILAR TO PCE 2;
Structure : MASSIVE PILLOW LAVA FLOWS,CRACKS THROUGHOUT SECTION,
FRACTURES IN PCES 3A-3D ARE CALCITE-LINED;
Comments : GRAY BASALT;
Groundmass : XTLS IN MATRIX ARE NEARLY 1MM IN SIZE;
Phenocrysts: FELDSPAR ( 0-5%)
Size(mm): TO 1
LARGE FELD PHENOS ARE RARE-MOST ARE ABOUT 1MM LONG
WITH ABSENCE OF(OR VERY RARE) PHENOS IN PCES 2-3D
& WHEREVER PHENOS ARE PRESENT(IN ENTIRE SECTION)
THEY TEND TO CLUMP TOGETHER;
Leg : 80 Top/Bottom Interval(mm): 0/1400 Analyst: Loubere, P.
Hole: 550B Sample Midpoint (m) : 709.90
Core: 29 Top of Core Depth (m) : 702.50
Sect: 5 Top of Section Depth(m): 708.50
LITHOLOGY: FELD MOD PHYRIC BASALT;
MASSIVE BASALT;
Piece No. : PCES 1A (0-23), 1B (23-34), 1C (34-48), 1D (48-56),
1E (56-78), 1F (78-96), 1G (95-106), 1H (106-118),
1I (118-122), 1J (122-136);
Texture : MOD PHYRIC,COARSE MICROXLN;
Structure : MASSIVE BASALT,VEINS FILLED BY CALCITE & DARK-GREEN
AMORPHOUS UNIDENT.MIN FOUND IN PCES 1D+1G-1H,VERY
LITTLE FRACTURING;
Comments : GRAY BASALT;
Vesicles : SOME DARK UNIDENT.MIN MAY BE FILLED VESICLES;
Phenocrysts: FELDSPAR ( TO 5%)
FELD PHENOS ARE ABOUT 1MM IN SIZE & TO 1MM LONG;
FERROMAGNESIUM ( RARE%)
Size(mm): TO 1
DARK FE.MG PHENOS BECOME MORE COMMON TOWARD PCE 1G
& BELOW(SOME OF THESE MAY BE FILLED VESICLES BUT A
NUMBER SHOW XTL STRUCTURE);
Replacement: CALCITE
UNIDENTIFIED
CALCITE & DARK GREEN AMPORPHOUS UNIDENT.MIN FILL
VEINS;
Leg : 80 Top/Bottom Interval(mm): 0/ 100 Analyst: DeGraciansky, P.C.
Hole: 550B Sample Midpoint (m) : 710.10
Core: 29 Top of Core Depth (m) : 702.50
Sect: 6 Top of Section Depth(m): 710.00
LITHOLOGY: PHYRIC BASALT;
APHYRIC BASALT;
Piece No. : PCES 1A (1-4), 1B (3-10);
Texture : PCE 1A IS PHYRIC,PCE 1B IS APHYRIC,BOTTOM 2CM OF PCE
1B IS A CHILLED MARGIN(BOTTOM OF FLOW UNIT);
Leg : 80 Top/Bottom Interval(mm): 100/ 200 Analyst: DeGraciansky, P.C.
Hole: 550B Sample Midpoint (m) : 710.20
Core: 29 Top of Core Depth (m) : 702.50
Sect: 6 Top of Section Depth(m): 710.10
LITHOLOGY: SEDIMENT;
BRECCIA;
Piece No. : PCES 2A (13-17), 2B (17-20);
Leg : 80 Top/Bottom Interval(mm): 200/1500 Analyst: DeGraciansky, P.C.
Hole: 550B Sample Midpoint (m) : 711.50
Core: 29 Top of Core Depth (m) : 702.50
Sect: 6 Top of Section Depth(m): 710.20
LITHOLOGY: PHYRIC BASALT;
Piece No. : PCES 3A (22-38), 3B (38-43), 4A (45-52), 4B (52-84),
4C (83-98), 5 (102-108), 6 (112-149);
Texture : PHYRIC,GRAINSIZE DECREASES FROM PCES 4A-4C;
Structure : HIGHLY FRACTURED BASALT,WHITE CALCITIC VEIN
PERPENDICULAR TO CORE AXIS IN PCE 4A;
Comments : PINK CALCAREOUS BRECCIA ON TOP OF PCE 4A(45-47CM) &
ENCRUSTS BASALT IN PCE 5 & CALCITIC & CHLORITIC
BRECCIA FOUND IN PCE 6(122-125CM,INFILLING OF
FRACTURES?);
Vesicles : CARB.UNSPEC AMYGDULES IN PCES 4B+6;
Phenocrysts: PLAGIOCLASE ( 7-10%)
Replacement: CARBONATE
CARB.UNSPEC AMYGDULES IN PCES 4B+6;
CALCITE
CALCITE VEINS & BRECCIA(INFILLING OF FRACTURES IN
PCE 6?);
CHLORITE
IN BRECCIA OF PCE 6(INFILLING OF FRACTURES?);
Leg : 80 Top/Bottom Interval(mm): 0/ 150 Analyst: DeGraciansky, P.C.
Hole: 550B Sample Midpoint (m) : 711.77
Core: 29 Top of Core Depth (m) : 702.50
Sect: CC Top of Section Depth(m): 711.72
LITHOLOGY: PHYRIC BASALT;
Piece No. : PCE 1 (1-12);
Texture : PHYRIC,VERY FINE-GRAINED;
Structure : FILLING OF FRACTURES BY SEDIMENT(PINK CALCAREOUS
BRECCIA) WTIH BASALT DEBRIS & CALCITE VEINS;
Replacement: CALCITE
PINK CALCAREOUS BRECCIA,CALCITE VEINS;
Leg : 80 Top/Bottom Interval(mm): 0/1450 Analyst: DeGraciansky, P.C.
Hole: 550B Sample Midpoint (m) : 712.45
Core: 30 Top of Core Depth (m) : 711.00
Sect: 1 Top of Section Depth(m): 711.00
LITHOLOGY: PLAG MOD PHYRIC BASALT;
PILLOW BASALT;
MASSIVE BASALT;
Piece No. : PCES 1A (1-24), 1B (24-32), 1C (33-61), 1D (61-88),
1E (88-100), 1F (100-142);
Texture : MOD PHYRIC,VERY FINE-GRAINED BECOMING COARSER-
GRAINED NEAR THE BASE,GLASS ON TOP OF PCE 1C;
Structure : MASSIVE PILLOW LAVA FLOWS,CALCITE-FILLED FRACTURES
IN PCES 1C-1F,SMEC-FILLED VEIN IN PCE 1E(ALONG WITH
CALCITE);
Alteration : SOME ALTERATION ALONG VEINS IN PCE 1F;
Comments : MEDIUM-GRAY BASALT;
Vesicles :
Location: Filling: CARB,UNIDENT.MIN
VESICLES WITH CARB.UNSPEC & GREENISH UNIDENT.MINS;
Phenocrysts: PLAGIOCLASE ( TO 5%)
Replacement: CARBONATE
CARB.UNSPEC FILLS VESICLES;
CALCITE
CALCITE IN FRACTURES & VEINS;
SMECTITE
FOUND WITH CALCITE IN VEIN IN PCE 1E;
Leg : 80 Top/Bottom Interval(mm): 0/1500 Analyst: DeGraciansky, P.C.
Hole: 550B Sample Midpoint (m) : 714.00
Core: 30 Top of Core Depth (m) : 711.00
Sect: 2 Top of Section Depth(m): 712.50
LITHOLOGY: PLAG MOD PHYRIC BASALT;
PILLOW BASALT;
MASSIVE BASALT;
Piece No. : PCES 1A (1-18), 1B (18-30), 2 (32-74), 3 (76-94),
4A (96-114), 4B (114-149);
Texture : MOD PHYRIC,VERY FINE-GRAINED BECOMING COARSER-
GRAINED NEAR THE BASE;
Structure : MASSIVE PILLOW LAVA FLOWS,CALCITE-FILLED FRACTURES
& VEINS,SMEC-FILLED FRACTURE IN PCE 1D;
Alteration : VARIOUS ALTERATION ZONES THROUGHOUT;
Comments : MEDIUM-GRAY BASALT;
Phenocrysts: PLAGIOCLASE
Replacement: CALCITE
CALCITE FILLS VEINS & FRACTURES,SPARRY WHITE
CALCITE ON TOP OF PCE 1A;
SMECTITE
FOUND IN ALTERATION ZONE IN PCE 2;
Leg : 80 Top/Bottom Interval(mm): 0/1500 Analyst: DeGraciansky, P.C.
Hole: 550B Sample Midpoint (m) : 715.50
Core: 30 Top of Core Depth (m) : 711.00
Sect: 3 Top of Section Depth(m): 714.00
LITHOLOGY: PLAG MOD PHYRIC BASALT;
PILLOW BASALT;
MASSIVE BASALT;
Piece No. : PCES 1A (1-6), 1B (5-12), 1C (12-25), 1D (25-30),
1E (31-51), 1F (52-63), 1G (60-86), 1H (87-114),
1I (111-116), 1J (115-121), 1K (122-133),
1L (132-149);
Texture : MOD PHYRIC,PCES 1E-1I COARSER-GRAINED THAN PCES
1A-1D+1J-1L,PCES 1E-1I OPHITIC & PCES 1J-1L ARE
DOLERITIC;
Structure : MASSIVE PILLOW LAVA FLOWS,CALCITE VEINS IN PCES
1H+1K;
Alteration : ALTERATION ZONES IN PCES 1G-1H & BASE OF PCE 1L;
Comments : MEDIUM-GRAY BASALT,PCE 1D IS RED CALCAREOUS
MUDSTONE;
Phenocrysts: PLAGIOCLASE
Replacement: CALCITE
CALCITE VEINS IN PCES 1G-1H+1K,PCE 1D IS RED
CALCAREOUS MUDSTONE;
Leg : 80 Top/Bottom Interval(mm): 0/1350 Analyst: DeGraciansky, P.C.
Hole: 550B Sample Midpoint (m) : 716.85
Core: 30 Top of Core Depth (m) : 711.00
Sect: 4 Top of Section Depth(m): 715.50
LITHOLOGY: PLAG MOD PHYRIC BASALT;
PILLOW BASALT;
MASSIVE BASALT;
Piece No. : PCES 1 (1-4), 2 (5-7), 3 (8-11), 4A (14-40),
4B (40-64), 4C (63-80), 4D (79-110), 4E (110-129),
4F (130-135);
Texture : MOD PHYRIC,PCE 4C IS NEARLY APHYRIC,VERY FINE-
GRAINED,PCES 4D-4F ARE DOLERITIC WITH OPHITIC
TEXTURE;
Structure : MASSIVE PILLOW LAVA FLOWS,CALCITE VEIN IN PCE 4A,
HIGHLY FRACTURED;
Comments : MEDIUM-GRAY BASALT;
Vesicles : AMYGDULES FILLED WITH GREEN UNIDENT.MINS(SMEC?);
Phenocrysts: PLAGIOCLASE
Replacement: CALCITE
CALCITE VEIN IN PCE 4A;
UNIDENTIFIED
GREEN UNIDENT.MINS FILL AMYGDULES(POSSIBLY SMEC);
Leg : 80 Top/Bottom Interval(mm): 0/1100 Analyst: DeGraciansky, P.C.
Hole: 550B Sample Midpoint (m) : 718.10
Core: 30 Top of Core Depth (m) : 711.00
Sect: 5 Top of Section Depth(m): 717.00
LITHOLOGY: PLAG MOD PHYRIC BASALT;
PILLOW BASALT;
MASSIVE BASALT;
Piece No. : PCES 1 (1-21), 2 (24-27), 3A (30-35), 3B (31-39),
3C (40-49), 3D (48-75), 3E (75-85), 3F (84-101),
4 (104-110);
Texture : MOD PHYRIC,PCES 1-3E DOLERITIC,PCES 3F-4 ARE VERY
FINE-GRAINED;
Structure : MASSIVE PILLOW LAVA FLOWS,CALCITE VEIN IN PCE 1,
FRACTURED THROUGHOUT,PYR IN FRACTURE IN PCE 3E;
Alteration : ALTERATION ZONES IN PCES 3D+4;
Comments : MEDIUM-GRAY BASALT,PCE 2 IS ACTUALLY DEBRIS,PCE 4
ENDS CORE & IS PROBABLY THE END OF A FLOW UNIT;
Phenocrysts: PLAGIOCLASE ( 5-7%)
Replacement: CALCITE
CALCITE VEIN IN PCE 1;
PYR FILLS FRACTURE IN PCE 3E;
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