Leg : 73 Top/Bottom Interval(mm): 0/1100 Analyst: Weissert, H.J.
Hole: 524 Sample Midpoint (m) : 286.10
Core: 29 Top of Core Depth (m) : 285.00
Sect: 1 Top of Section Depth(m): 285.00
LITHOLOGY: SEDIMENT;
Leg : 73 Top/Bottom Interval(mm): 1100/1500 Analyst: Weissert, H.J.
Hole: 524 Sample Midpoint (m) : 286.50
Core: 29 Top of Core Depth (m) : 285.00
Sect: 1 Top of Section Depth(m): 286.10
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 1 (110-150);
Texture : APHYRIC;
Structure : NUMEROUS CALCITE VEINS ARRANGED PERPENDICULAR TO
CORE AXIS & SPACED EVERY 2-3CM;
Alteration : MOD TO EXT
Comments : DARK GRAY;
Vesicles : VESICULAR;
Replacement: CALCITE
Leg : 73 Top/Bottom Interval(mm): 0/ 700 Analyst: Weissert, H.J.
Hole: 524 Sample Midpoint (m) : 287.20
Core: 29 Top of Core Depth (m) : 285.00
Sect: 2 Top of Section Depth(m): 286.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 1A (0-28), 1B (20-44), 1C (45-57), 1D (57-62),
1E (64-70);
Texture : APHYRIC;
Structure : NUMEROUS IRREGULAR CALCITE VEINS SOME WITH GREEN
CLAY.MINS(SMEC?) RIMS;
Alteration : MOD TO EXT
Replacement: CLAY
GREEN(POSSIBLY SMEC);
Leg : 73 Top/Bottom Interval(mm): 800/ 820 Analyst: Pisciotto, K.
Hole: 524 Sample Midpoint (m) : 289.82
Core: 30 Top of Core Depth (m) : 289.00
Sect: 1 Top of Section Depth(m): 289.80
LITHOLOGY: SEDIMENT;
CALCAREOUS CLAYSTONE;
Piece No. : PCE 1 (80-81);
Leg : 73 Top/Bottom Interval(mm): 830/1500 Analyst: Pisciotto, K.
Hole: 524 Sample Midpoint (m) : 290.50
Core: 30 Top of Core Depth (m) : 289.00
Sect: 1 Top of Section Depth(m): 289.83
LITHOLOGY: APHYRIC BASALT;
DOLERITE;
MASSIVE BASALT;
Piece No. : PCES 2A (83-102), 2B (119-150);
Texture : APHYRIC,COARSE-GRAINED;
Structure : MASSIVE BASALT,SEVERAL VEINS MOSTLY FILLED WITH
CALCITE(& MINOR PYR) & LINED WITH DARK GREEN SMEC,
ONE HORIZONTAL VEIN FILLED WITH DARK GREEN SMEC AT
95CM(PCE 2A);
Alteration : MOD TO EXT
Comments : DARK GRAY;
Replacement: CALCITE
SMECTITE
DARK GREEN;
Leg : 73 Top/Bottom Interval(mm): 0/1500 Analyst: Carman, M.
Hole: 524 Sample Midpoint (m) : 292.00
Core: 30 Top of Core Depth (m) : 289.00
Sect: 2 Top of Section Depth(m): 290.50
LITHOLOGY: APHYRIC BASALT;
DOLERITE;
MASSIVE BASALT;
Piece No. : PCES 1A (1-9), 1B (9-11), 1C (12-17), 1D (16-21),
1E (22-26), 1F (26-35), 1G (35-40), 1H (40-47),
2A (48-62), 1J (63-75), 1K (75-85), 2A (88-94),
2B (94-99), 3A (103-111), 3B (112-120),
3C (120-129), 4 (132-135), 5 (137-141), 6 (143-150);
Texture : APHYRIC,COARSE-GRAINED;
Structure : PCES 1A+1C FRACTURES ALONG LINES OF IRREGULAR
VESICLES & LINED W/PYR,PCES 1I+1K ARE SIMILAR TO
PCES 1A+1C EXCEPT FRACTURES ARE FILLED WITH BLUE/
GREEN SMEC,PCE 2A HAS A SMEC-COATED CALCITE-FILLED
FRACTURE,FRACTURES ARE WIDELY SPACED(2-10CM);
Alteration : MOD TO EXT
Comments : DARK GRAY BASALT;
Vesicles :
Location: Filling: SMEC,PYR
Shape : IRREG
PCES 1A+1C HAVE VESICLES LINED WITH PYR,BLUE/GREEN
SMEC FILLS VESICLES IN PCES 1I-1K,PCE 3A VESICLES
ARE EMPTY;
Replacement: CALCITE
SMECTITE
BLUE/GREEN;
Leg : 73 Top/Bottom Interval(mm): 0/1450 Analyst: Weissert, H.J.
Hole: 524 Sample Midpoint (m) : 295.95
Core: 31 Top of Core Depth (m) : 294.50
Sect: 1 Top of Section Depth(m): 294.50
LITHOLOGY: APHYRIC BASALT;
DOLERITE;
Piece No. : PCES 1 (0-6), 3 (11-13), 4 (16-27), 5 (28-32),
6A (33-41), 6B (41-50), 6C (49-58), 7 (60-64),
8A (65-85), 8B (85-98), 9 (100-108), 10 (110-123),
11 (125-141);
Texture : APHYRIC,EVENLY COARSE-GRAINED;
Structure : RARE FRACTURES FILLED WITH GREEN CLAY.MINS,SMALL PYR
XTLS FOUND IN FRACTURES & DISCOLORED ZONES;
Alteration : MOD TO EXT
Comments : DARK GRAY BASALT;
Replacement:
SMALL PYR XTLS;
CLAY
ID CLAY.MINS UNCERTAIN(POSSIBLY SMEC);
Leg : 73 Top/Bottom Interval(mm): 70/ 100 Analyst: Weissert, H.J.
Hole: 524 Sample Midpoint (m) : 294.60
Core: 31 Top of Core Depth (m) : 294.50
Sect: 1 Top of Section Depth(m): 294.57
LITHOLOGY: SEDIMENT;
CALCAREOUS CLAYSTONE;
Piece No. : PCE 2 (7-10);
Leg : 73 Top/Bottom Interval(mm): 0/ 900 Analyst: Weissert, H.J.
Hole: 524 Sample Midpoint (m) : 296.90
Core: 31 Top of Core Depth (m) : 294.50
Sect: 2 Top of Section Depth(m): 296.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (0-17), 2 (20-29), 3 (30-33), 4 (36-44),
5 (46-49), 6 (52-55), 7 (58-90);
Texture : APHYRIC,COARSE-GRAINED;
Structure : RARE CLAY-FILLED VEINS IN PCES 1-2+4;
Alteration : MOD TO EXT
Comments : DARK GRAY BASALT;
Vesicles :
Location: Filling: PYR,SMEC
PCE 7 HAS 2 HORIZONS WITH VESICLES FILLED WITH PYR
& SMEC(ID SMEC UNCERTAIN);
Replacement: CLAY
CLAY.MINS POSSIBLY SMEC;
SMECTITE
ID SMEC FILLING VESICLES IN PCE 7 UNCERTAIN;
PYR FILLS VESICLES IN PCE 7;
Leg : 73 Top/Bottom Interval(mm): 1300/1500 Analyst: Weissert, H.J.
Hole: 524 Sample Midpoint (m) : 306.50
Core: 32 Top of Core Depth (m) : 303.50
Sect: 2 Top of Section Depth(m): 306.30
LITHOLOGY: BASALT;
Texture : FINE-GRAINED,GRAIN-SIZE INCREASES TO VERY COARSE
AT BASE;
Vesicles : VESICULAR AT UPPER CONTACT,VESICLES FLATTENED AND
PARALLEL TO CONTACT;
Alteration : ALTERED TO BROWN;
Leg : 73 Top/Bottom Interval(mm): 50/ 450 Analyst: Carman, M.
Hole: 524 Sample Midpoint (m) : 306.95
Core: 32 Top of Core Depth (m) : 303.50
Sect: 3 Top of Section Depth(m): 306.55
LITHOLOGY: APHYRIC BASALT;
DOLERITE;
Piece No. : PCES 1A (6-20), 1B (20-44);
Texture : APHYRIC POSSIBLY DOLERITE,COARSE-GRAINED;
Structure : CUT BY CALCITE-FILLED FRACTURES(0.25-2MM THICK),
SUGGESTION OF CONJUGATE SET,PYR SPORADIC ALONG
CALCITE-FILLED FRACTURES;
Alteration : MOD TO EXT
Comments : DARK GRAY/GREEN BASALT;
Vesicles : Size(mm): <2 Percent: <<1
Location: Filling: SMEC
Shape : IRREG
DARK GREEN SMEC FILLS VESICLES;
Replacement: CALCITE
SPORADIC ALONG CALCITE-FILLED FRACTURES;
SMECTITE
DARK GREEN;
Leg : 73 Top/Bottom Interval(mm): 0/1500 Analyst: Carman, M.
Hole: 524 Sample Midpoint (m) : 329.00
Core: 33 Top of Core Depth (m) : 327.50
Sect: 1 Top of Section Depth(m): 327.50
LITHOLOGY: APHYRIC BASALT;
DOLERITE;
Piece No. : PCES 1A (0-15), 1B (14-35), 1C (35-55), 1D (56-92),
1E (92-149);
Texture : APHYRIC BASALT(POSSIBLY DOLERITE),SIMILAR TO CORE
32-3,VERY COARSE-GRAINED,BELOW DIPPING CONTACT IN
PCE 1E BASALT IS FINER-GRAINED;
Structure : PCES 1A+1D & TOP OF PCE 1E HAVE CALCITE-FILLED
(1-2MM) VEINLETS WITH SPORADIC PYR,OTHER VEINLETS
ARE THINNER(0.5-1MM) & FILLED WITH DARK GREEN SMEC &
SPORADIC PYR,PCE 1E(95-101CM) DIPPING CONTACT,BELOW
DIPPING CONTACT IS A SILL(?);
Alteration : MOD TO EXT
ALTERATION CONFUSING;
Comments : DARK GRAY BASALT;
Vesicles : Size(mm): Percent: 1
Location: Filling:
Shape : IRREG
BOTTOM OF PCE 1E HAS <1% VESICLES;
Groundmass : AUGITE
Size(mm): 2-3
OLIVINE
Size(mm): 2-3
ID AUGITE UNCERTAIN(POSSIBLY OL),SCATTERED
THROUGHOUT UNIT BUT MOST CONCENTRATED IN PCE 1A &
UPPER PART OF PCE 1B(TO 20CM);
Replacement: SMECTITE
DARK GREEN;
SPORADIC;
CALCITE
Leg : 73 Top/Bottom Interval(mm): 0/1500 Analyst: Carman, M.
Hole: 524 Sample Midpoint (m) : 330.50
Core: 33 Top of Core Depth (m) : 327.50
Sect: 2 Top of Section Depth(m): 329.00
LITHOLOGY: APHYRIC BASALT;
DOLERITE;
Piece No. : PCES 1A (1-30), 1B (30-64), 1C (64-95), 1D (93-120),
1E (120-148);
Texture : APHYRIC BASALT(POSSIBLY DOLERITE),SIMILAR TO CORE
33-1;
Structure : PCES 1A-1B+1D-1E HAVE CALCITE VEINS(0.25-1MM WIDE),
OTHER VEINS SMEC-LINED WITH SPORADIC PYR,PYR ALSO
SPORADIC IN CALCITE-FILLED VEINS OF PCE 1A;
Alteration : MOD TO EXT
Comments : DARK GRAY BASALT;
Vesicles : Size(mm): Percent: TO 1
Location: Filling:
Shape : IRREG
TOP ONE-THIRD OF PCE 1A IS MOST VESICULAR(1%);
Phenocrysts: AUGITE
OLIVINE
ID AUGITE UNCERTAIN(POSSIBLY OL),ALTERED,PHENOS
CONCENTRATED IN UPPER ONE-THIRD TO ONE-HALF OF
PCE 1A;
Replacement: CALCITE
SMECTITE
PYR SPORADIC;
Leg : 73 Top/Bottom Interval(mm): 0/1500 Analyst: Carman, M.
Hole: 524 Sample Midpoint (m) : 332.00
Core: 33 Top of Core Depth (m) : 327.50
Sect: 3 Top of Section Depth(m): 330.50
LITHOLOGY: APHYRIC BASALT;
DOLERITE;
Piece No. : PCES 1A (1-45), 1B (45-80), 1C (81-91), 1D (91-100),
1E (97-110), 1F (108-124), 1G (120-148);
Texture : APHYRIC BASALT(POSSIBLY DOLERITE),SIMILAR TO CORES
33-1 & 33-2,COARSEST(>0.5MM) IN CENTER OF SECTION;
Structure : SAME CALCITE & PYR LININGS;
Alteration : MOD TO EXT
Comments : DARK GRAY BASALT;
Replacement: CALCITE
Leg : 73 Top/Bottom Interval(mm): 0/ 350 Analyst: Carman, M.
Hole: 524 Sample Midpoint (m) : 332.35
Core: 33 Top of Core Depth (m) : 327.50
Sect: 4 Top of Section Depth(m): 332.00
LITHOLOGY: APHYRIC BASALT;
DOLERITE;
Piece No. : PCES 1 (0-34);
Texture : APHYRIC BASALT(POSSIBLY DOLERITE),SIMILAR TO CORES
33-1 TO 33-3,PCE 1A(AT 4CM) CONTACT BETWEEN UNITS AS
TOP OF PCE IS VERY FINE-GRAINED GRADING TO MEDIUM-
GRAINED <1CM FROM CONTACT;
Structure : TOP OF PCE 1A HAS SOME CALCITE & SMEC & PYR;
Alteration : MOD TO EXT
Comments : DARK GRAY BASALT;
Replacement: CALCITE
SMECTITE
Leg : 73 Top/Bottom Interval(mm): 0/1500 Analyst: Carman, M.
Hole: 524 Sample Midpoint (m) : 334.00
Core: 34 Top of Core Depth (m) : 332.50
Sect: 1 Top of Section Depth(m): 332.50
LITHOLOGY: APHYRIC BASALT;
DOLERITE;
Piece No. : PCES 1A (0-22), 1B (16-37), 1C (37-63), 1D (64-101),
1E (101-136), 1F (133-146);
Texture : APHYRIC BASALT(POSSIBLY DOLERITE),SIMILAR TO CORES
33-1 THRU 33-4;
Structure : SAME CALCITE & SMEC & PYR LINING;
Alteration : MOD TO EXT
Comments : DARK GRAY BASALT;
Replacement: CALCITE
SMECTITE
Leg : 73 Top/Bottom Interval(mm): 0/ 200 Analyst: Carman, M.
Hole: 524 Sample Midpoint (m) : 334.20
Core: 34 Top of Core Depth (m) : 332.50
Sect: 2 Top of Section Depth(m): 334.00
LITHOLOGY: APHYRIC BASALT;
DOLERITE;
Piece No. : PCE 1 (0-20);
Texture : APHYRIC BASALT(POSSIBLY DOLERITE),SIMILAR TO CORES
33-1 THRU 33-4 & 34-1;
Structure : CALCITE & SMEC & PYR VEINING;
Alteration : MOD TO EXT
Comments : DARK GRAY BASALT;
Replacement: CALCITE
SMECTITE
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