Leg : 36 Top/Bottom Interval(mm): 0/ 50 Analyst: Tarney, J.
Hole: 330 Sample Midpoint (m) : 550.05
Core: 15 Top of Core Depth (m) : 547.00
Sect: CC Top of Section Depth(m): 550.10
LITHOLOGY: SEDIMENT (SAND);
Piece No. : PCE 1 (137-142);
Leg : 36 Top/Bottom Interval(mm): 60/ 90 Analyst: Tarney, J.
Hole: 330 Sample Midpoint (m) : 550.09
Core: 15 Top of Core Depth (m) : 547.00
Sect: CC Top of Section Depth(m): 550.06
LITHOLOGY: GNEISS;
Piece No. : PCE 2 (143-146);
Texture : GRANULITIC;
Replacement: CALCITE
CALCITIZED;
Leg : 36 Top/Bottom Interval(mm): 100/ 130 Analyst: Tarney, J.
Hole: 330 Sample Midpoint (m) : 550.13
Core: 15 Top of Core Depth (m) : 547.00
Sect: CC Top of Section Depth(m): 550.10
LITHOLOGY: PEGMATITE;
Leg : 36 Top/Bottom Interval(mm): 170/1500 Analyst: Tarney, J.
Hole: 330 Sample Midpoint (m) : 558.00
Core: 16 Top of Core Depth (m) : 556.50
Sect: 1 Top of Section Depth(m): 556.67
LITHOLOGY: ACID-INTERMEDIATE GNEISS;
GRANITE;
Piece No. : PCE 1 (18-22), 2 (23-29), 3 (30-38), 4 (39-45),
5 (46-48), 6 (49-51), 7 (53-57), 8 (57-62),
9 (62-71), 10 (71-80), 11 (80-90), 12 (90-100),
13 (100-108), 14 (109-116), 15 (116-122),
16 (124-129), 17 (129-131), 18 (132-138),
19 (138-142), 20 (143-147);
Texture : FINE-GRAINED, GRANULAR, PCES 1&2 ARE FAIRLY
HOMOGENEOUS, PCES 2&4 HAVE WEAK PLANAR FABRIC, PCE 7
IS PEGMATITIC;
Structure : GRANITE VEINS IN PCES 7&14&17-19, THIN CHLORITIZED
BASIC VEIN IN PCE 4 CROSS-CUTS WEAK FOLIATION IN
GNEISS BUT SHOWS NO TRACE OF DEFORMATION OR
FOLIATION - THUS EMPLACED POST-BIOTITE FOLIATION,
BASIC VEINS ON LEFT SIDE OF PCES 8&9, CALCITE VEINS
IN PCES 3 (35% "VEINS") &7&13&20, MACROSCOPIC
FOLIATION IN PCES 11-14, WHITE CALCITE-FILLED VEINS
0.05MM WIDE SUB-PARALLEL TO CORE, VEIN IN PCE 4
COMPOSED OF SOFT HOMOGENEOUS FINE-GRAINED GREEN
(5GY 4/1) SMECTITE - CARBONATE-FREE;
Comments : PCE 1 IS LIGHT GRAY (N7), PCES 2-4&8-19 ARE GREENISH
GRAY (5GY 6/1), BASIC VEINS ARE (5BG 5/2), GRANITE
VEIN IN PCE 7 IS (10R 6/6) TO (5YR 8/1), GRANITE
VEINS BELOW ARE (10YR 7/4), PCE 20 IS (5GY 5/1), PCE
3 IS GRANULITE, SEPARATE SHIPBOARD FORMS FOR MANY
PIECES;
Vesicles :
Location: Filling: CALCITE, SMECTITE
A FEW AMYGDULES FILLED WITH CALCITE & GREEN
SMECTITE IN PCE 7;
Phenocrysts: KFELDSPAR
Size(mm): TO 2
IN PCE 7;
Groundmass : KFELDSPAR
IN PCES 7&13&20;
PLAGIOCLASE ( 30%)
PARTLY REPLACED BY CALCITE - HEAVILY REPLACED NEAR
TOP OF SECTION;
QUARTZ ( 60%)
PCES 3&13&20 ARE QUARTZ-RICH, COARSE QUARTZ
CRYSTALLINITY IN PCE 7;
BIOTITE ( 10%)
BROWN & GREEN, LATHS ALIGNED IN FOLIATION IN PCE
2, 2% IN PCE 7;
Replacement: CALCITE ( 30%)
Minerals Replaced: PLAG, KSPAR
IN VEINS, ALL PLAG REPLACED IN PCE 1, PCES 1-4 ARE
CALCITIZED, ALSO IN CRACKS BETWEEN MINERALS IN PCE
20;
SMECTITE
GREEN SPOTTY AREAS IN PCE 2 PROBABLY COATED WITH
GREEN SMECTITE CLAY, IN VEINS;
CHLORITE
IN PCE 4;
PYRITE
TRACE AMOUNT;
Leg : 36 Top/Bottom Interval(mm): 0/1450 Analyst: Tarney, J.
Hole: 330 Sample Midpoint (m) : 559.45
Core: 16 Top of Core Depth (m) : 556.50
Sect: 2 Top of Section Depth(m): 558.00
LITHOLOGY: INTERMEDIATE TO ACID GNEISS;
PEGMATITE;
BIOTITITE;
Piece No. : PCE 1 (1-11), 2 (12-18), 3 (18-23), 4 (25-30),
5 (43-50), 6 (51-55), 7 (56-63), 8 (64-69),
9 (69-72), 10 (74-78), 11 (78-82), 12 (82-87),
13 (87-91), 14 (92-100), 15 (100-104), 16 (104-108),
17 (108-117), 18 (117-124), 19 (124-130),
20 (131-135), 21 (136-144);
Texture : FINE TO MEDIUM-GRAINED, GRANULAR, PCE 10 IS A
PEGMATITIC AND BANDED GRANULITIC GNEISS;
Structure : FOLIATION THROUGHOUT, CALCITE VEINS IN PCE 1,
CROSS-CUTTING CALCITE VEINS IN PCE 10, GRANITE VEINS
(10YR 7/4) IN PCES 1&3-4&12&14&19-20, QUARTZ VEIN IN
PCE 9 IS LIGHT GRAY (N7) & GRAY (N8), FINE-GRAINED
CLAY/CHLORITE VEINS IN PCE 1, SERICITE/CHLORITE
VEINS IN PCE 5, MANY SERICITE-FILLED VEINS PARALLEL
TO FOLIATION IN PCES 18&21, PCE 1 IS A CONTACT
BETWEEN BIOTITITE & BIOTITE-PLAG QUARTZ GNEISS, SOME
MAFIC TO ULTRAMAFIC BANDS ESPECIALLY IN PCE 21,
BANDS OF METAMORPHIC CLAY IN PCE 10, CHLORITE/GARNET
CLOTS IN PCES 5&17-18;
Alteration : PCE 10 IS FAIRLY EXTENSIVE;
Comments : PCES 1-2&8&10-17 ARE DARK GREENISH GRAY (5G 4/1),
PCES 5&6 ARE GRAY-GREEN-PINK (5YR 7/2), PCES 7&21
ARE GREENISH GRAY (5G 6/1), PCES 17&18 ARE LIGHT
GRAY (N7), SEPARATE SHIPBOARD FORMS FOR MANY PIECES,
PCE 5 IS PEGMATITE, BIOTITITE IN PCE 1, PCES 1&2
CONTAIN BASIC GNEISS;
Groundmass : GARNET
IN PCES 5&16&18&21, CHLORITE/GARNET CLOTS;
PLAGIOCLASE
IN PCES 1&16&21, PLAG? BADLY CLOUDED AND REPLACED
BY CALCITE/SIDERITE IN PCE 16;
KFELDSPAR
PCE 5 IS DEFORMED KSPAR PEGMATITE, IN PCE 18,
KSPAR BAND IN PCE 21;
TOURMALINE
IN PCE 18;
QUARTZ
IN PCES 1&16&18&21, SOME QUARTZ RECRYSTALLIZATION
IN PCE 5;
BIOTITE
IN PCES 1&5&16&18&21;
Replacement: CALCITE
Minerals Replaced: PLAG
IN VEINS, REPLACES PLAG IN PCE 16;
CHLORITE
IN VEINS, CHLORITE/GARNET CLOTS;
SIDERITE
Minerals Replaced: PLAG
IN PCE 1, REPLACES PLAG IN PCE 16;
SERICITE
MUD SERICITE IN PCE 1, VEINS IN PCES 5&18&21;
Leg : 36 Top/Bottom Interval(mm): 1450/1500 Analyst: Tarney, J.
Hole: 330 Sample Midpoint (m) : 559.50
Core: 16 Top of Core Depth (m) : 556.50
Sect: 2 Top of Section Depth(m): 559.45
LITHOLOGY: GNEISS;
PEGMATITE;
Piece No. : PCE 22 (145-150);
Texture : PEGMATITIC;
Structure : CONTACT BETWEEN GRANULAR ACID GNEISS & PEGMATITIC
LAYERS;
Comments : COLOR IS MEDIUM BLUE GRAY (5B 5/1);
Leg : 36 Top/Bottom Interval(mm): 450/1500 Analyst: Tarney, J.
Hole: 330 Sample Midpoint (m) : 567.50
Core: 17 Top of Core Depth (m) : 566.00
Sect: 1 Top of Section Depth(m): 566.45
LITHOLOGY: GNEISS;
Piece No. : PCE 1 (45-52), 2 (52-57), 3 (58-63), 4 (63-69),
5 (69-78), 6 (78-84), 7 (85-93), 8 (93-104),
9 (104-109), 10 (110-119), 11 (118-124),
12 (125-130), 13 (131-140), 14 (141-149);
Texture : PCE 3 IS GRANULAR;
Structure : GRANITE VEINS IN PCES 4&14, CALCITE & SERICITE VEINS
IN PCE 3, FOLIATION THROUGHOUT;
Comments : PCE 1 IS LIGHT GRAY (N7), PCES 2-13 ARE GREEN-GRAY
(5G 6/1), GRANITE VEIN IN PCE 4 IS (5YR 8/4) AND IN
PCE 14 IS PINK-GRAY (5YR 8/1);
Groundmass : GARNET
PCE 3;
TOURMALINE
PCE 3;
KFELDSPAR
PCE 3;
PLAGIOCLASE
CLOUDY PLAG & KSPAR IN PCE 3;
QUARTZ
PCE 3;
Replacement: CALCITE
VEINS IN PCE 3;
SERICITE
VEINS IN PCE 3;
Leg : 36 Top/Bottom Interval(mm): 0/1380 Analyst: Tarney, J.
Hole: 330 Sample Midpoint (m) : 568.88
Core: 17 Top of Core Depth (m) : 566.00
Sect: 2 Top of Section Depth(m): 567.50
LITHOLOGY: GNEISS;
Piece No. : PCE 1 (0-6), 2 (6-8), 3 (8-17), 4 (17-25),
5 (26-30), 6 (29-32), 7 (32-37), 8 (38-46),
9 (47-53), 10 (53-55), 11 (56-59), 12 (60-62),
13 (63-68), 14 (68-72), 15 (72-85), 16 (85-94),
17 (94-97), 18 (98-104), 19 (104-106), 20 (107-113),
21 (113-116), 22 (116-122), 23 (122-130),
24 (130-134), 25 (135-138);
Structure : FOLIATION THROUGHOUT;
Alteration : EXT;
Comments : GRANITE IN PCE 1 IS (5YR 8/1), PEGMATITE IN PCE 20
IS ORANGE (10YR 7/4), PCES 4-6 ARE GREENISH GRAY
(5GY 6/1), PCES 7-25 ARE GREENISH GRAY (5GY 5/1);
Groundmass : GARNET
PCE 3 IS GARNETIFEROUS;
Leg : 36 Top/Bottom Interval(mm): 1380/1500 Analyst: Tarney, J.
Hole: 330 Sample Midpoint (m) : 569.00
Core: 17 Top of Core Depth (m) : 566.00
Sect: 2 Top of Section Depth(m): 568.88
LITHOLOGY: FAULT BRECCIA;
Piece No. : PCE 26 (138-150);
Comments : COLOR IS GREENISH GRAY (5G 6/1);
Leg : 36 Top/Bottom Interval(mm): 0/ 70 Analyst: Tarney, J.
Hole: 330 Sample Midpoint (m) : 569.07
Core: 17 Top of Core Depth (m) : 566.00
Sect: 3 Top of Section Depth(m): 569.00
LITHOLOGY: ACID GNEISS;
Piece No. : PCE 1 (0-7);
Texture : GRANULAR;
Structure : MANY CALCITE-FILLED VEINS;
Leg : 36 Top/Bottom Interval(mm): 0/ 220 Analyst: Tarney, J.
Hole: 330 Sample Midpoint (m) : 569.22
Core: 17 Top of Core Depth (m) : 566.00
Sect: 3 Top of Section Depth(m): 569.00
LITHOLOGY: GNEISS;
GRANITE;
Piece No. : PCE 1 (0-7), 2 (8-12), 3 (12-15), 4 (15-21);
Comments : FAULT-SHEARED CONTACT BETWEEN GNEISS AND GRANITE,
COLOR IS GREEN-GRAY (5GY 6/1);
Leg : 36 Top/Bottom Interval(mm): 280/ 360 Analyst: Tarney, J.
Hole: 330 Sample Midpoint (m) : 569.36
Core: 17 Top of Core Depth (m) : 566.00
Sect: 3 Top of Section Depth(m): 569.28
LITHOLOGY: GNEISS;
PEGMATITE;
Piece No. : PCE 5 (28-36);
Comments : CONTACT BETWEEN PEGMATITE AND GNEISS;
Groundmass : GARNET
GNEISS AT CONTACT IS RICH IN PALE RED-PURPLE
(5RP 6/2) GARNET IN QUARTZ MATRIX;
QUARTZ
Leg : 36 Top/Bottom Interval(mm): 300/1500 Analyst: Tarney, J.
Hole: 330 Sample Midpoint (m) : 570.50
Core: 17 Top of Core Depth (m) : 566.00
Sect: 3 Top of Section Depth(m): 569.30
LITHOLOGY: GRANITE;
Piece No. : PCE 5 (28-36), 6 (35-41), 7 (42-50), 8 (50-55),
9 (56-60), 10 (60-65), 11 (65-75), 12 (75-84),
13 (83-91), 14 (91-101), 15 (102-107), 16 (107-120),
17 (120-126), 18 (126-135), 19 (135-145);
Texture : COARSE-GRAINED AND PEGMATITIC IN PATCHES;
Comments : COLOR IS MODERATE ORANGE-PINK (5YR 8/4);
Groundmass : KFELDSPAR
Leg : 36 Top/Bottom Interval(mm): 0/ 0 Analyst: Tarney, J.
Hole: 330 Sample Midpoint (m) : 570.60
Core: 17 Top of Core Depth (m) : 566.00
Sect: CC Top of Section Depth(m): 570.60
LITHOLOGY: QUARTZ DIORITE;
Piece No. : PCE NO PIECE NUMBERS ASSIGNED, LOWER PART OF CORE
CATCHER;
Texture : VERY FINE-GRAINED, SHAPES OF SOME GRAINS LOOK LIKE
PYROXENE, COMPOSITION LOOKS INTERMEDIATE, CONTAINS
MAFIC MINERALS;
Structure : MANY CALCITE VEINS PARTLY FILLED WITH QUARTZ;
Alteration : MAFIC MINERALS CLOUDED, GROUNDMASS PARTLY ALTERED;
Comments : MINERAL PROPORTIONS INDETERMINABLE--TOO FINE-GRAINED
AND ALTERED, HAND SAMPLE HAS GRANITE XENOLITHS;
Phenocrysts: QUARTZ
Size(mm): <0.1-2
XENOCRYSTS OR PHENOCRYSTS;
Groundmass : PLAGIOCLASE
QUARTZ
THIN SECTION SHOWS MANY IRREGULAR CRYSTALS OF
QUARTZ OR QUARTZ AGGREGATES, NO CRYSTAL FACES,
RATHER RAGGED OUTLINES;
BIOTITE
GREENISH AREAS MAY BE ALTERED & DEGRADED BIOTITES;
Replacement: SERICITE
RADIATING AGGREGATES IN GROUNDMASS, ID UNCERTAIN;
CALCITE
HEMATITE
SMALL MICROSCOPIC HEMATITE HEXAGONS;
Leg : 36 Top/Bottom Interval(mm): 0/ 0 Analyst: Tarney, J.
Hole: 330 Sample Midpoint (m) : 570.60
Core: 17 Top of Core Depth (m) : 566.00
Sect: CC Top of Section Depth(m): 570.60
LITHOLOGY: GRANITE;
Piece No. : PCE NO PIECE NUMBERS ASSIGNED, BIT ASSEMBLY SAMPLE;
Structure : CHLORITE & MUSCOVITE VEINS;
Comments : CONTACT OF FINE-GRAINED MARGIN OF LATER INTRUSION
AGAINST GRANITE, SAMPLE ACTUALLY FOUND IN BIT
ASSEMBLY ON RETRIEVAL OF DRILL STRING AFTER HOLE
ABANDONED;
Replacement: CHLORITE
MUSCOVITE
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