Leg : 60 Top/Bottom Interval(mm): 0/1340 Analyst: Natland, J.
Hole: 453 Sample Midpoint (m) : 456.84
Core: 49 Top of Core Depth (m) : 455.50
Sect: 1 Top of Section Depth(m): 455.50
LITHOLOGY: GABBRO;
Piece No. : PCE 2 (17-19), 4 (27-30), 5 (32-35), 6 (38-41),
7 (43-49), 8 (52-55), 9 (57-61), 10 (63-67),
11 (71-75), 13 (83-86), 14 (89-91), 15 (93-101),
16 (103-106), 18 (118-125), 19 (129-134);
Texture : PCE 2 IS ALTERED PLAG-OPX GABBRO WITH A POSSIBLE
FRAGMENT OFF PCE 1 AND QTZ XTL ENCRUSTATION, PCE 4
IS GABBRO PEGMATITE WITH COARSE PLAG AND BROWN
ALTERED OPX, PCE 5 IS SIMILAR TO PCES 2-4 BUT FINER
GRAINED, PCE 6 IS ALTERED GABBRO WITH ORIENTED BANDS
OF BROWN ALTERED OPX, PCE 7 IS LEUCOCRATIC GABBRO
WITH PLAG+OPX+CPX OR A GREEN SECONDARY MINERAL, PCES
8-11 AND 13-16 ARE COARSE LEUCOCRATIC GABBRO OR
GABBRO PEGMATITE WITH BROWN OPX AND CPX ALTERED TO
AMPH, PCE 14 IS QTZ CEMENTATION AROUND MINOR GABBRO
FRAGMENTS, PCE 19 IS GABBRO SIMILAR TO PCE 2;
Alteration : SLIGHTLY;
Comments : PCE 18 CONSISTS OF 3 PCES OF RED SANDY MATERIAL WITH
CLAY.MIN+PYX AND ALSO CARB+MINOR QTZ+SERP+EPID;
Replacement: AMPHIBOLE
Minerals Replaced: CPX
QUARTZ
Leg : 60 Top/Bottom Interval(mm): 0/1480 Analyst: Natland, J.
Hole: 453 Sample Midpoint (m) : 456.98
Core: 49 Top of Core Depth (m) : 455.50
Sect: 1 Top of Section Depth(m): 455.50
LITHOLOGY: POLYMICT BRECCIA;
Piece No. : PCE 1A (2-6), 1B (7-12), 20 (137-141), 21 (143-148);
Texture : PCES 1A-B ARE BRECCIA OF PLAG PHYRIC BASALT AND
GABBRO WITH SUBROUNDED PCES AND CEMENT OF QTZ
SANDSTONE, WELL DEVELOPED QTZ XTLS ON TOP OF BOTH
PCES, PCE 20 IS QTZ CEMENTED WITH ANGULAR CLASTS OF
ALTERED BASALT AND GABBRO (2-15MM), PCE 21 IS MADE
OF PEBBLES OF BASALT AND BRECCIA;
Structure : CRACKS FILLED WITH QTZ XTLS;
Alteration : SLIGHTLY;
Leg : 60 Top/Bottom Interval(mm): 230/1480 Analyst: Natland, J.
Hole: 453 Sample Midpoint (m) : 456.98
Core: 49 Top of Core Depth (m) : 455.50
Sect: 1 Top of Section Depth(m): 455.73
LITHOLOGY: BASALT;
Piece No. : PCE 3 (22-24), 12 (77-81), 17 (108-115);
Texture : PCE 3 IS DIABASE OR ALTERED SUBOPHITIC DOLERITE, PCE
12 IS FINE GRAINED MOD ALTERED APHYRIC BASALT WITH
BROWNISH COATING ON EXTERIOR SURFACE, PCE 17 IS PLAG
(ALTERED) SPARSELY PHYRIC METABASALT WITH PALE GREEN
GNDMASS REXTLZED TO GREENSCHIST FACIES AND UPPER
RIND OF PEBBLY BRECCIA WITH GABBRO FRAGMENTS;
Alteration : SLIGHTLY
PCES 3-12;
EXT
PCE 17;
Comments : GNDMASS PALE GREEN;
Leg : 60 Top/Bottom Interval(mm): 0/1470 Analyst: Natland, J.
Hole: 453 Sample Midpoint (m) : 458.47
Core: 49 Top of Core Depth (m) : 455.50
Sect: 2 Top of Section Depth(m): 457.00
LITHOLOGY: POLYMICT BRECCIA;
Piece No. : PCE 1 (2-5), 2 (7-14), 3 (17-23), 4 (27-30),
5 (33-37), 6 (41-46), 7 (50-56), 8 (58-62),
9 (64-71), 10 (73-77), 11 (79-83), 12 (87-89),
13 (92-95), 14 (98-100), 15 (103-109), 16 (113-115),
17 (121-124), 18 (127-133), 19 (136-140),
20 (143-147);
Texture : POLYMICT BRECCIA CEMENTED WITH CARB, ALL PCES ARE
EITHER BRECCIAS OR FRAGMENTS OF ROCKS BROKEN OUT OF
BRECCIAS WITH THIN CRUSTS OF BRECCIA ON THEM, PCES
(6,11,13) CONTAIN >2CM BASALT CHIPS, PCE 9 CONTAINS
A >5CM PCE OF DIABASE AND A >7CM PCE OF MAFIC
GABBRO, PCE 16 CONTAINS A >5CM GREENISH METABASALT
OR META-ANDESITE, IN ALL PCES GABBRO FRAGMENTS
PREDOMINATE AT LEAST 2:1 OVER OTHER TYPES, MATRIX IS
SAND-SIZED GRAINS OF MAFIC IGNEOUS ROCKS CEMENTED BY
FAINTLY PINK CARB;
Replacement: CARBONATE
PINK IN COLOR AS CEMENT FOR BRECCIA;
Leg : 60 Top/Bottom Interval(mm): 0/ 420 Analyst: Natland, J.
Hole: 453 Sample Midpoint (m) : 458.92
Core: 49 Top of Core Depth (m) : 455.50
Sect: 3 Top of Section Depth(m): 458.50
LITHOLOGY: POLYMICT BRECCIA;
Piece No. : PCE 1 (4-8), 6B (37-41);
Texture : POLYMICT BRECCIA OF GABBRO AND BASALT WITH A PINK
MATRIX, EPIDOTE APPEARS ON ONE SURFACE;
Alteration : SLIGHTLY;
Replacement: EPIDOTE
Leg : 60 Top/Bottom Interval(mm): 110/ 580 Analyst: Meijer, A.
Hole: 453 Sample Midpoint (m) : 459.08
Core: 49 Top of Core Depth (m) : 455.50
Sect: 3 Top of Section Depth(m): 458.61
LITHOLOGY: GABBRO;
Piece No. : PCE 2 (12-13), 3 (17-20), 5 (32-34), 8 (51-58);
Texture : PCE 2 IS ANORTHOSITIC GABBRO, PCE 3 IS AN
ANORTHOSITIC GABBRO CLAST WITH BRECCIA MATRIX ON ONE
SIDE, PCE 5 IS PEGMATITIC GABBRO WITH FRESH LARGE
CPX, PCE 8 IS FINE TO MEDIUM GRAINED GABBRO WITH
PINK MATRIX ADHERING TO ONE SIDE WITH THE GABBRO
NOT ALTERED;
Alteration : SLIGHTLY;
Leg : 60 Top/Bottom Interval(mm): 250/ 480 Analyst: Meijer, A.
Hole: 453 Sample Midpoint (m) : 458.98
Core: 49 Top of Core Depth (m) : 455.50
Sect: 3 Top of Section Depth(m): 458.75
LITHOLOGY: BASALT;
Piece No. : PCE 4 (25-28), 6A (37-42), 7 (47-48);
Texture : PCE 4 IS FINE GRAINED BASALT WITH MINOR MATRIX
ADHERING TO IT, PCE 6A IS ALTERED MEDIUM GRAINED
BASALT WITH POLYMICT MATRIX ADHERING FROM ONE SIDE,
PCE 7 IS FINE GRAINED BASALT THAT IS RELATIVELY
FRESH;
Alteration : SLIGHTLY;
Comments : PCE 4 IS MEDIUM BLUISH GREY (5B5/1), PCE 6A IS OLIVE
GREY (5Y4/1), PCE 7 IS GREENISH BLACK (5G2/1);
Leg : 60 Top/Bottom Interval(mm): 0/1500 Analyst: Sharaskin, A.
Hole: 453 Sample Midpoint (m) : 466.50
Core: 50 Top of Core Depth (m) : 465.00
Sect: 1 Top of Section Depth(m): 465.00
LITHOLOGY: POLYMICT BRECCIA;
Piece No. : PCE 1A (2-7), 1B (7-11), 2 (14-21), 3 (25-28),
4 (30-33), 5A (35-45), 5B (45-51), 5C (52-56),
6 (58-60), 7 (63-71), 8A (74-77), 8B (79-83),
9 (86-89), 10A (91-98), 10B (99-106),
10C (107-114), 10D (115-120), 11 (122-124),
12 (129-134), 13 (135-139), 14 (142-145),
15 (146-150);
Texture : ALL THE SECTION CONSISTS OF FRAGMENTS OF POLYMICT
BRECCIA WHICH INCLUDES ANGULAR BLOCKS AND FRAGMENTS
OF DIFFERENT IGNEOUS AND SEDIMENTARY ROCKS,
PREDOMINANT ARE GABBROS WITH VARIABLE TEXTURES AND
STRUCTURES AND COMPOSITIONS, THE NEXT GROUP IS
MOSTLY ALTERED FINE GRAINED BASALTS AND MICRODIABASE
WITH SMALL FRAGMENTS OF MUDSTONES AND SILTSTONES,
CEMENT OF BRECCIA CONSISTS OF DETRITUS OF THE SAME
ROCKS AND QUARTZ-HEMATITE-CARB MATRIX, PCES (1A-B,3,
4,8A,9,10A,11,14-15) ARE VERY COARSE GRAINED
BRECCIA, PCE 2 INCLUDES A FRAGMENT WITH THE CONTACT
BETWEEN FINE GRAINED MELANOCRATIC GABBRO AND MORE
COARSE GRAINED GABBRO (PYX-25%, PLAG-70%, CHROMITE-
5%), PCES 5A-B ARE ALTERED MICROBRECCIA AFTER
VOLCANIC ROCK (HYALOCLASTIC), PCE 5C IS ALTERED
BASALT("GREEN STONE"), PCES (6,7,10B-C,13) ARE
COARSE GRAINED GABBROS (PYX-15-20%, PLAG 80-85%),
PCE 8B IS PLAG PHYRIC BASALT, PCE 12 IS COARSE
GRAINED;
Alteration : EXT
PCES 5A-C;
MOD
PCES 1A-B+7+8B+10B-D+13;
FRESH;
REST OF SECTION;
Replacement: CARBONATE
QUARTZ
HEMATITE
Groundmass : CHROMITE
Leg : 60 Top/Bottom Interval(mm): 0/ 480 Analyst: Sharaskin, A.
Hole: 453 Sample Midpoint (m) : 466.98
Core: 50 Top of Core Depth (m) : 465.00
Sect: 2 Top of Section Depth(m): 466.50
LITHOLOGY: POLYMICT BRECCIA;
Piece No. : PCE 1 (0-4), 2A (7-11), 2B (11-13), 3 (17-21),
4 (24-28), 5 (32-35), 6 (39-48);
Texture : IGNEOUS ROCK FRAGMENTS FROM POLYMICT BRECCIA SIMILAR
TO PREVIOUS SECTION, MATRIX OR CEMENT MATERIAL
PRESERVED ONLY ON UPPER CORNER OF PCE 2A, PCE 1 IS
FINE GRAINED HOLOXTLN BASALT, PCES 2A-B ARE VERY
COARSE GRAINED PEGMATITIC GABBRO, PCE 3 IS A COARSE
GRAINED GABBRO(ALTERED PYX-25-30%, PLAG-70-75%),
PCE 4 IS GABBRO(PYX-40%, PLAG-60%), PCE 5 IS PLAG
PHYRIC BASALT, PCE 6 IS COARSE GRAINED OL GABBRO
NORITE;
Alteration : MOD
PCES (2A-3, 5-6);
FRESH
PCES 1 AND 4;
Leg : 60 Top/Bottom Interval(mm): 0/1420 Analyst: Natland, J.
Hole: 453 Sample Midpoint (m) : 475.92
Core: 51 Top of Core Depth (m) : 474.50
Sect: 1 Top of Section Depth(m): 474.50
LITHOLOGY: POLYMICT BRECCIA;
Piece No. : PCE 1 (3-12), 2 (16-18), 3 (21-23), 4 (25-29),
5A (32-35), 5B (35-40), 5C (40-43), 6 (47-50),
7 (53-55), 8 (58-62), 9 (65-67), 10 (70-72),
11 (73-75), 12 (78-83), 13 (86-88), 14 (90-91),
15 (94-99), 16A (102-106), 16B (107-112),
16C (112-118), 17 (122-127), 18 (129-133),
19 (137-142);
Texture : ENTIRE SECTION CONSISTS OF FRAGMENTS OF POLYMICT
BRECCIA CONTAINING MAINLY PEBBLE-SIZED ANGULAR
CLASTS OF IGNEOUS AND SEDIMENTARY ROCKS, THE MOST
ABUNDANT OF THESE IS FELDSPATHIC GABBRO, LESS
ABUNDANT ARE FINE GRAINED TO MEDIUM GRAINED BASALTS
AND METABASALTS, PCE 1 IS A GABBRO WITH THE BOTTOM
MORE ALTERED THAN THE TOP, PCE 8 IS PLAG SPARSELY
PHYRIC BASALT, SEDIMENTARY CLASTS WITHIN THE
BRECCIAS ARE SIMILAR BRECCIAS WITH THE SAME
IGNEOUS COMPONENTS, LARGE GABBRO CLASTS (>5CM)
ARE PRESENT IN PCES 12 AND 15, SOMEWHAT SMALLER
GABBROS IN PCES 4 AND 16A, A FLAT BASALT PEBBLE IS
IN PCE 18, MATRIX CONSISTS OF ANGULAR COARSE SAND
FRAGMENTS PRIMARILY GABBROIC OR BASALTIC IN ORIGIN,
PYX ARE DARK BROWN IN COLOR, SOME OLIVINES MAY BE
PARTIALLY SERPENTINIZED AND HAVE BLACK SAGENITIC
WEBS IN CORES SURROUNDED BY BRICK RED MATERIAL,
CEMENT IS OF CARB+HEMATITE;
Alteration : EXT
MANY GABBRO FRAGMENTS ARE MOD ALTERED;
Comments : MATRIX IS BRICK RED IN COLOR, BASALT CLASTS ARE
SOMETIMES BRICK RED IN COLOR ALSO, PCE 1 GABBRO
COLOR INDEX=30, DARK GREEN MAFICS INGROWN WITH PLAG;
Replacement: CARBONATE
HEMATITE
SERPENTINITE
Minerals Replaced: OL
Leg : 60 Top/Bottom Interval(mm): 0/1480 Analyst: Sharaskin, A.
Hole: 453 Sample Midpoint (m) : 477.48
Core: 51 Top of Core Depth (m) : 474.50
Sect: 2 Top of Section Depth(m): 476.00
LITHOLOGY: POLYMICT BRECCIA;
Piece No. : PCE 1 (2-8), 2 (10-18), 3 (21-24), 4 (27-29),
5 (31-34), 6 (37-39), 7 (41-43), 8A (46-48),
8B (49-53), 9 (55-58), 10A (61-63), 10B (64-68),
11 (72-74), 12 (77-80), 13 (83-87), 14 (90-96),
15A (99-102), 15B (103-105), 16 (109-112),
17 (115-119), 18 (121-126), 19 (130-137),
20 (139-142), 21 (147-148);
Texture : ALL THE SAMPLES FROM THIS SECTION REPRESENT PCES OF
POLYMICT BRECCIA OR FRAGMENTS OF IGNEOUS SOMETIMES
BADLY ALTERED ROCKS DRILLED OUT OF BRECCIA, IN
COMPARISON WITH PREVIOUS SECTIONS THE BASALT
FRAGMENTS BECOME MORE ABUNDANT WITHIN THIS INTERVAL,
GABBRO:BASALT IS 3:2, CEMENT IS DARKER REDDISH
BROWN, PCE 1 IS A BADLY ALTERED METAMORPHOSED GABBRO
WITH BRECCIA MATRIX ON THE RIGHT EDGE, PCE 12 IS A
COARSE GRAINED GABBRO WITH ALTERED PYX(7%)+PLAG(93%)
AND PCE 15B IS A MELANOCRATIC GABBRO WITH PYX
(60-70%)+PLAG(30-40%), PCE 16 IS A PEGMATITIC GABBRO
WITH PYX(5-7%), PCE 17 IS AN ALTERED HOLOXTLN BASALT
AND PCE 18 IS A BADLY ALTERED GABBRO (RODINGITE?),
PCE 19 IS A COARSE GRAINED GABBRO WITH PYX(50%) AND
PLAG(50%), PCE 20 IS A MELANOCRATIC GABBRO WITH
PYX(85-90%), PCE 21 IS A FINE GRAINED BASALT, REST
OF SECTION IS BRECCIA, PCES 13-14 HAVE DEEP BRICK
RED CEMENTED MATRIX AS THE RESULT OF DECOMPOSITION
OF BASALTIC FRAGMENTS;
Structure : QUARTZ ENCRUSTATIONS AND VEINS TYPICAL FOR THE
UPPER SECTIONS ARE ABSENT HERE;
Alteration : EXT
PCE 18;
MOD
PCES 1+12+16+17+19-21;
FRESH;
REST OF SECTION;
Comments : DEEP BRICK RED MATRIX;
Leg : 60 Top/Bottom Interval(mm): 0/1480 Analyst: Natland, J.
Hole: 453 Sample Midpoint (m) : 478.98
Core: 51 Top of Core Depth (m) : 474.50
Sect: 3 Top of Section Depth(m): 477.50
LITHOLOGY: POLYMICT BRECCIA;
Piece No. : PCE 1A (2-10), 1B (11-19), 1C (20-27), 2A (30-35),
2B (35-38), 3 (41-45), 4A (47-54), 4B (55-57),
4C (58-64), 5 (67-70), 6 (73-76), 7 (77-81),
8 (83-90), 9 (93-96), 10 (100-105), 11A (108-119),
11B (120-125), 11C (125-130), 12 (133-137),
13 (139-143), 14 (145-148);
Texture : WHOLE SECTION IS FRAGMENTS OF A POLYMICT BRECCIA
WITH SOME LARGE GABBRO COBBLES CORED IN CONSECUTIVE
PCES, AS THROUGHOUT THIS CORE GABBRO PEBBLES AND
SAND GRAINS PREDOMINATE IN THE BRECCIA MATRIX,
CEMENTED BY HEMATITE+CARB, MOD ALTERED BASALTS ARE
NEXT MOST ABUNDANT AS PEBBLES IN THE BRECCIAS AND
ARE ESPECIALLY PROMINENT IN PCES 1A+1C+3+7, PCES
4A-C ARE A NEARLY PEGMATITIC GABBRO, LARGE PLAG AT
THE EDGES OF GABBROS AND IN THE MATRIX HAVE A
BLEACHED APPEARANCE, PCE 6 IS A REXTLZED DIABASE;
Alteration : EXT
PCES 1A-C AND 7-14;
SLIGHTLY
PCES 2A-6, ALTERATION IS INTENSE IN THE MATRIX
WITH EVEN SAND GRAINS BEING BRICK RED, IN GABBROS
ALTERATION IS MOD AFFECTING MAINLY PYX WHICH ARE
NOW BRICK RED;
Comments : MATRIX IS BRICK RED AND ALL ALTERED PARTS ALSO;
Replacement: CARBONATE
HEMATITE
Leg : 60 Top/Bottom Interval(mm): 0/1500 Analyst: Sharaskin, A.
Hole: 453 Sample Midpoint (m) : 480.50
Core: 51 Top of Core Depth (m) : 474.50
Sect: 4 Top of Section Depth(m): 479.00
LITHOLOGY: POLYMICT BRECCIA;
Piece No. : PCE 1A (1-18), 1B (19-25), 1C (26-32), 1D (32-35),
2 (37-43), 3 (45-47), 4 (50-56), 5 (60-63),
6 (65-68), 7 (71-74), 8 (76-78), 9 (82-85),
10 (87-91), 11 (94-99), 12A (100-107),
12B (107-112), 13A (115-119), 13B (119-123),
13C (123-125), 14 (127-132), 15A (135-136),
15B (138-143), 16 (146-150);
Texture : SAME AS IN PREVIOUS SECTIONS, FRAGMENTS OF
GABBRO:BASALT IS 2:1, PCES 1A+1B+4 ARE LARGE
FRAGMENTS OF VERY COARSE GRAINED PEGMATITIC GABBROS
WITH PYX(40%)+PLAG(60%) AND CEMENT MATRIX ON EDGES,
PCE 3 IS FINE GRAINED BASALT, PCE 5 IS ANORTHITE
GABBRO WITH PYX(15%)+PLAG(85%), PCE 6 IS FINE
GRAINED BASALT, PCE 7 IS ALTERED ANORTHITE GABBRO,
PCE 14 IS HOLOXTLN PLAG PHYRIC BASALT;
Structure : SOME CAVITIES IN PINK OR PALE RED CEMENT CONTAIN
QUARTZ ENCRUSTATION(PCES1C-D);
Alteration : MOD
PCES 1A+1B+4+6;
FRESH
REST OF SECTION;
Comments : CEMENT PINK OR PALE RED, PCE 3 IS MEDIUM BLUISH
GREY (5B5/1), PCE 6 IS MEDIUM GREY (N5), PCE 14 IS
IS MEDIUM DARK GREY (N4);
Replacement: QUARTZ
Leg : 60 Top/Bottom Interval(mm): 0/1500 Analyst: Fryer, P.
Hole: 453 Sample Midpoint (m) : 485.50
Core: 52 Top of Core Depth (m) : 484.00
Sect: 1 Top of Section Depth(m): 484.00
LITHOLOGY: POLYMICT BRECCIA;
Piece No. : PCE 1A (1-7), 1B (4-11), 2 (13-23), 3 (25-31),
4 (33-39), 5 (41-50), 6 (52-57), 7 (59-66),
8 (69-74), 9A (76-79), 9B (76-79), 10 (82-86),
11 (87-92), 12 (93-101), 13 (103-106),
14 (108-111), 15A (113-117), 15B (117-125),
15C (126-131), 16A (132-140), 16B (140-148),
16C (148-150);
Texture : SECTION CONSISTS OF ANGULAR TO SUB-ROUNDED FRAGMENTS
OF GABBRO + DIABASE + PHYRIC AND APHYRIC BASALT AND
VARIOUS SEDIMENTARY ROCKS, FRAGMENTS ARE CEMENTED
WITH A QUARTZ+HEMATITE+CARB MATRIX, COARSE GABBRO
FRAGMENTS PREDOMINATE, PCE 1 IS A DIABASE MOD
ALTERED AND FRACTURED, PCE 4 IS A COARSE GRAINED
GABBRO MOD ALTERED, PCE 12 IS A SPARSELY FELDSPAR
PHYRIC BASALT WHICH IS FINE GRAINED AND IN CONTACT
WITH THE BRECCIA ON ITS UPPER SURFACE, PCES 15A-16C
SHOW AN INCREASE IN PROPORTION OF COARSE GABBRO
FRAGMENTS OVER THOSE PCES OF BRECCIA IN THE UPPER
PORTION OF THE SECTION;
Structure : PCE IS FRACTURED;
Replacement: QUARTZ
CARBONATE
HEMATITE
Leg : 60 Top/Bottom Interval(mm): 0/1170 Analyst: Fryer, P.
Hole: 453 Sample Midpoint (m) : 486.67
Core: 52 Top of Core Depth (m) : 484.00
Sect: 2 Top of Section Depth(m): 485.50
LITHOLOGY: GABBRO AND POLYMICT BRECCIA;
Piece No. : PCE 1 (0-4), 2 (5-10), 3A (12-24), 3B (24-27),
4A (29-35), 4B (33-35), 5 (36-45), 6A (47-56),
6B (56-61), 6C (62-69), 7A (71-80), 7B (80-86),
8 (88-98), 9 (100-107), 10 (108-117);
Texture : PRIMARILY COARSE GRAINED GABBRO WITH LESSER POLYMICT
BRECCIA, COARSE GRAINED GABBRO IS THE MOST ABUNDANT
ROCK PRESENT IN THIS SECTION, THE MIDDLE INTERVAL OF
THE CORE(53-87CM) IS A POLYMICT BRECCIA OF ANGULAR
TO SUBROUNDED FRAGMENTS OF VARIOUS IGNEOUS AND RARE
SEDIMENTARY ROCKS, UPPER PORTION OF BRECCIA INTERVAL
CONSISTS OF SMALLER FRAGMENTS OF APHYRIC AND
FELDSPAR PHYRIC BASALT AND GABBRO AND DIABASE AND
MINOR MUDSTONE, LOWER PORTION OF BRECCIA FRAGMENTS
ARE LARGER AND PREDOMINANTLY CONSIST OF GABBRO
SIMILAR TO THAT ENCOUNTERED IN THE UPPER PORTION OF
THE SECTION, CEMENTING BRECCIA IS A MIXTURE OF
QUARTZ+HEMATITE+CARB, PCE 2 IS A COARSE GRAINED
GABBRO AND IN THE SAME INTERVAL IS A FRAGMENT OF
BRECCIA AND A FINE GRAINED GABBRO, PCE 8 DIRECTLY
BELOW THE BRECCIA IS FINER GRAINED AND MORE ALTERED
THAN MOST OF THE GABBROS IN THIS SECTION;
Alteration : EXT
MIDDLE OF PCE 6 TO PCE 8;
MOD
REST OF SECTION;
Replacement: CARBONATE
HEMATITE
QUARTZ
Leg : 60 Top/Bottom Interval(mm): 0/1500 Analyst: Sharaskin, A.
Hole: 453 Sample Midpoint (m) : 495.00
Core: 53 Top of Core Depth (m) : 493.50
Sect: 1 Top of Section Depth(m): 493.50
LITHOLOGY: POLYMICT BRECCIA;
Piece No. : PCE 1A (1-6), 1B (7-11), 1C (13-18), 2A (20-27),
2B (28-31), 3 (33-41), 4 (43-47), 5 (50-57),
6 (59-62), 7 (65-69), 8 (71-77), 9A (79-82),
9B (93-96), 10 (89-98), 11 (101-108), 12 (110-113),
13A (115-118), 13B (119-124), 14A (125-131),
14B (131-135), 14C (136-138), 14D (139-145),
14E (145-150);
Texture : PCES OF POLYMICT BRECCIA SAME AS IN PREVIOUS SECTION
WITH PALE GREYISH RED CEMENT OF HEMATITE+CARB,
GABBRO TO BASALT FRAGMENTS IS 3:2, FRAGMENTS OF FINE
GRAINED MEDIUM GREY AND GREENISH GREY DIABASES WITH
SUBOPHITIC TEXTURE ARE ABUNDANT WITH THE LARGEST ONE
IN PCE 5, PCES 2A AND 14D-E INCLUDE LARGE FRAGMENTS
OF COARSE GRAINED GABBRO, PCES OF BASALT IN PCE 14
ARE ALL FROM THE SAME ROCK BUT ARE NOW BROKEN UP;
Alteration : MOD
PCES 14C-E;
FRESH
REST OF SECTION;
Comments : CEMENT PALE GREYISH RED (5R5/2) AND DIABASE MEDIUM
GREY TO GREENISH GREY;
Replacement: CARBONATE
HEMATITE
Leg : 60 Top/Bottom Interval(mm): 0/1490 Analyst: Fryer, P.
Hole: 453 Sample Midpoint (m) : 496.49
Core: 53 Top of Core Depth (m) : 493.50
Sect: 2 Top of Section Depth(m): 495.00
LITHOLOGY: POLYMICT BRECCIA;
Piece No. : PCE 1A (1-7), 1B (7-11), 1C (12-18), 2 (20-26),
3A (28-36), 3B (37-39), 3C (37-39), 4A (45-53),
5A (59-62), 5B (62-65), 5C (66-69), 5D (70-71),
6 (73-78), 7A (80-83), 7B (80-82), 8A (85-92),
8B (93-97), 8C (98-101), 9 (102-112), 10 (114-118),
11A (121-127), 11B (129-135), 11C (135-144),
12 (145-149);
Texture : POLYMICT BRECCIA WITH ANGULAR TO SUBROUNDED
FRAGMENTS OF FINE TO COARSE GRAINED GABBRO AND
DIABASE AND APHYRIC TO PHYRIC BASALT AND RARE
FRAGMENTS OF SEDIMENTARY ROCK (MUDSTONE PRIMARILY
WHICH IS TINY AND FEW IN NUMBER), CEMENT FOR BRECCIA
IS QUARTZ+HEMATITE+CARB, FRAGMENTS IN THIS SECTION
ARE EXTREMELY VARIABLE IN SIZE AND RANGE FROM
MICROSCOPIC TO 17CM LONG, PCE 1 IS A GABBRO
PEGMATITE IN CONTACT WITH THE BRECCIA, PCE 4 IS
FELDSPAR PHYRIC BASALT IN CONTACT WITH THE BRECCIA,
PCE 8 IS DIABASE WITH A THIN MARGIN OF COARSER
GABBROIC MATERIAL;
Alteration : EXT
PCES 2-3D+5A-6+8C-9+11A-12;
MOD
REST OF SECTION;
Replacement: CARBONATE
HEMATITE
QUARTZ
Leg : 60 Top/Bottom Interval(mm): 0/ 460 Analyst: Sharaskin, A.
Hole: 453 Sample Midpoint (m) : 496.96
Core: 53 Top of Core Depth (m) : 493.50
Sect: 3 Top of Section Depth(m): 496.50
LITHOLOGY: PYX GABBRO;
Piece No. : PCE 1A (1-6), 1B (6-12), 1C (12-20), 1D (20-31),
1E (31-47);
Texture : PYX GABBRO, COARSE GRAINED, PLAG-40% AND PYX-60%;
Alteration : FRESH;
Leg : 60 Top/Bottom Interval(mm): 490/1500 Analyst: Sharaskin, A.
Hole: 453 Sample Midpoint (m) : 498.00
Core: 53 Top of Core Depth (m) : 493.50
Sect: 3 Top of Section Depth(m): 496.99
LITHOLOGY: POLYMICT BRECCIA;
Piece No. : PCE 2A (49-56), 2B (55-60), 3 (63-67), 4A (70-73),
4B (74-75), 4C (76-81), 4D (81-90), 4E (90-94),
5 (98-103), 6 (105-109), 7 (113-117), 8 (120-123),
9 (125-131), 10 (134-137), 11 (140-142),
12 (145-150);
Texture : PCES 2A-B AND 4A-7 AND 9-12 ARE ALL POLYMICT BRECCIA
WITH ABUNDANT FRAGMENTS OF FINE TO COARSE GRAINED
DIABASES, PCE 2B CONTAINS A FRAGMENT OF GABBRO WITH
ORIENTED TEXTURE, PCE 4D HAS A LARGE DIABASE
FRAGMENT WITH ALTERATION RIM WITH PROMINENT PLAG
NOT EVIDENT IN FRESHER CORES, FRAGMENTS ARE
DISAGGREGATED PARTIALLY IN SITU, CEMENT REFLECTS THI
IN BEING DEEPER RED IN COLOR, PCE 3 IS A
METAMORPHOSED GABBRO WITH SUBPARALLEL ORIENTATION
OF PLAG AND PYX GRAINS, PCE 8 IS A SLIGHTLY ALTERED
PLAG PHYRIC DOLERITE OR COARSE GRAINED BASALT;
Alteration : FRESH;
Comments : CEMENT IS PALE GREYISH BROWN (5YR4/2);
Leg : 60 Top/Bottom Interval(mm): 490/1460 Analyst: Fryer, P.
Hole: 453 Sample Midpoint (m) : 499.46
Core: 53 Top of Core Depth (m) : 493.50
Sect: 4 Top of Section Depth(m): 498.49
LITHOLOGY: POLYMICT BRECCIA;
Piece No. : PCE 1 (1-9), 2A (11-16), 2B (17-26), 2C (27-31),
2D (32-35), 3A (37-42), 3B (43-47), 3C (48-51),
3D (50-53), 4 (54-61), 5A (63-70), 5B (72-74),
5C (71-74), 6 (76-85), 7 (86-92), 8A (94-101),
8B (102-108), 8C (108-116), 9 (118-122),
10 (124-130), 11A (133-137), 11B (137-141),
12 (145-146);
Texture : SECTION IS COMPOSED OF ANGULAR TO SUBROUNDED
FRAGMENTS OF IGNEOUS AND SEDIMENTARY ROCK OF
VARIOUS SIZES, IGNEOUS ROCKS ARE APHYRIC TO FELDSPAR
PHYRIC BASALT AND DIABASE AND FINE TO COARSE GABBRO,
THERE ARE ALSO SOME SMALL PCES OF MUDSTONE CEMENTED
WITH IGNEOUS FRAGMENTS IN A MATRIX OF QUARTZ+CARB
AND HEMATITE, PCE 1 IS A MEDIUM GRAINED DIABASE,
PCES 2A-B CONTAIN A MEDIUM GRAINED FRAGMENT OF
DIABASE IN CONTACT WITH THE BRECCIA, PCES 3-4 IN
ALL INTERVALS CONTAIN FELDSPAR PHYRIC BASALT IN
CONTACT WITH THE BRECCIA, PCE 5 IN THE INTERVAL
63-70CM CONTAINS FELDSPAR PHYRIC BASALT, PCE 8
CONTAINS COARSE GRAINED GABBRO IN CONTACT WITH
BRECCIA IN THE UPPER INTERVAL (94-105CM);
Alteration : EXT
PCES 2A-D AND 6-7 AND 9-12;
MOD
REST OF SECTION;
Replacement: CARBONATE
HEMATITE
QUARTZ
Leg : 60 Top/Bottom Interval(mm): 0/1490 Analyst: Sharaskin, A.
Hole: 453 Sample Midpoint (m) : 500.99
Core: 53 Top of Core Depth (m) : 493.50
Sect: 5 Top of Section Depth(m): 499.50
LITHOLOGY: POLYMICT BRECCIA AND GABBRO;
Piece No. : PCE 1 (1-23), 2 (26-29), 3 (33-37), 4 (40-44),
5 (47-54), 6 (57-59), 7 (63-67), 8 (72-77),
9A (80-88), 9B (89-96), 10A (99-103), 10B (104-106),
11A (108-112), 11B (113-116), 11C (118-127),
12A (130-138), 12B (130-133), 13 (141-149);
Texture : PCE 1 IS SIX PCES OF COARSE GRAINED ANORTHITE
GABBRO (PYX-20%) AND 2 SMALL PCES OF BRECCIA CEMENT,
PCES FROM 2-8 ARE POLYMICT BRECCIA WITH ABUNDANT
BROKEN PLAG XTLS, PCE 9A-B ARE TWO PCES OF FRESH
MEDIUM GRAINED GABBRO (PYX-25-30% + PLAG-70-75%),
PCES 10A-12B ARE POLYMICT BRECCIA, PCE 13 CONSISTS
OF 3 PCES WHICH ARE GABBRO+FINE GRAINED BASALT+PLAG
PHYRIC BASALT;
Alteration : FRESH;
Comments : CEMENT FOR POLYMICT BRECCIA IS GREYISH BROWN
(5YR3/2);
Leg : 60 Top/Bottom Interval(mm): 0/1500 Analyst: Sharaskin, A.
Hole: 453 Sample Midpoint (m) : 504.50
Core: 54 Top of Core Depth (m) : 503.00
Sect: 1 Top of Section Depth(m): 503.00
LITHOLOGY: POLYMICT BRECCIA;
Piece No. : PCE 1A (1-11), 1B (113-115), 1C (15-21), 2 (25-33),
3 (36-38), 4A (42-46), 4B (48-55), 4C (55-60),
4D (62-64), 5 (66-72), 6 (75-78), 7 (81-83),
8 (85-90), 9 (94-97), 10 (100-104), 11 (105-110),
12 (112-118), 13 (121-124), 14 (124-130),
15A (133-137), 15B (138-143), 15C (144-150);
Texture : PCES OF POLYMICT BRECCIA SAME AS IN PREVIOUS SECTION
EXCEPT PCES 4 AND 6 WHICH REPRESENT A NEW ROCK TYPE
OF VERY MAFIC COARSE GRAINED GABBRO OR PLAG BEARING
PYROXENITE;
Structure : VEINS OF WHITE MATERIAL NEXT TO GABBRO;
Alteration : FRESH;
Leg : 60 Top/Bottom Interval(mm): 0/1490 Analyst: Fryer, P.
Hole: 453 Sample Midpoint (m) : 505.99
Core: 54 Top of Core Depth (m) : 503.00
Sect: 2 Top of Section Depth(m): 504.50
LITHOLOGY: POLYMICT BRECCIA;
Piece No. : PCE 1A (2-6), 1B (7-14), 1C (15-23), 2 (25-31),
3 (35-40), 4A (41-48), 4B (49-52), 5 (55-62),
6 (64-72), 7 (74-81), 8 (83-90), 9 (92-98),
10 (12-15), 11 (108-115), 12A (116-125),
12B (126-134), 13 (136-141), 14 (144-149);
Texture : POLYMICT BRECCIA OF PREDOMINANTLY GABBRO RANGING
FROM COARSE TO VERY COARSE WITH DIABASE AND APHYRIC
TO FELDSPAR PHYRIC BASALT ALL CEMENTED IN A MATRIX
OF HEMATITE+QUARTZ+CARB, FRAGMENTS RANGE FROM
ANGULAR TO SUBROUNDED AND VARY IN SIZE FROM
MICROSCOPIC TO >11CM IN LENGTH, GABBRO FRAGMENTS IN
THIS SECTION ARE MORE PYX RICH THAN IN PREVIOUS
CORES, PCE 6 IS A PYX RICH COARSE GRAINED GABBRO IN
CONTACT WITH THE BRECCIA, PCES 12A-B ARE PYX
ABUNDANT COARSE GRAINED GABBRO IN CONTACT WITH THE
BRECCIA;
Alteration : MOD
PCES 4A-8 AND 12A-B;
EXT
REST OF SECTION, PCES 6 AND 12B HAVE THIN PALE
REACTION RIMS NEXT TO BRECCIA CEMENT;
Replacement: HEMATITE
CARBONATE
QUARTZ
Leg : 60 Top/Bottom Interval(mm): 0/1450 Analyst: Sharaskin, A.
Hole: 453 Sample Midpoint (m) : 507.45
Core: 54 Top of Core Depth (m) : 503.00
Sect: 3 Top of Section Depth(m): 506.00
LITHOLOGY: POLYMICT BRECCIA;
Piece No. : PCE 1 (1-11), 2 (14-17), 3 (20-24), 4 (26-30),
5 (33-36), 6 (39-43), 7A (45-47), 7B (46-47),
7C (49-52), 8 (54-58), 9 (62-68), 10 (71-76),
11 (79-84), 12 (87-93), 13 (95-104), 14 (107-109),
15 (112-116), 16 (121-123), 17 (127-131),
18A (134-139), 18B (140-145);
Texture : PCES OF POLYMICT BRECCIA WITH ROCK FRAGMENTS OF
GABBRO AND DIABASE AND BASALT IN A CLASTIC CEMENT,
RATIO OF GABBRO TO OTHER ROCKS IS 1:1, PCES 1 AND
8-9 ARE PORPHYRITIC DIABASE WITH CEMENT MATRIX ON
EDGES AND ALBITIZED PALE WHITE RIMS, PCES 2 AND 5
ARE DIABASE WITH SUBOPHITIC TEXTURE, PCE 7C IS A
FINE GRAINED BASALT, PCE 14 IS PYX PHYRIC BASALT,
PCES 10-11 ARE COARSE GRAINED GABBRO WITH PLAG-60%
AND PYX-40%, ALL OTHER PCES ARE BRECCIA;
Alteration : MOD
PCES 3 AND 10-11 AND 18B;
FRESH
REST OF SECTION;
Comments : CEMENT IS GREYISH RED (10R4/2);
Leg : 60 Top/Bottom Interval(mm): 0/ 450 Analyst: Sharaskin, A.
Hole: 453 Sample Midpoint (m) : 507.95
Core: 54 Top of Core Depth (m) : 503.00
Sect: 4 Top of Section Depth(m): 507.50
LITHOLOGY: POLYMICT BRECCIA;
Piece No. : PCE 1A (1-5), 1B (5-17), 1C (16-22), 2 (24-31),
3 (35-37), 4 (40-45);
Texture : PCES OF POLYMICT BRECCIA, PCES 1A-C ARE FRAGMENTED
PYX RICH GABBRO BLOCKS IN CONTACT WITH BRECCIA
MATRIX, PCES 2-4 ARE PCES OF BRECCIA WITH RATHER
ABUNDANT ANGULAR AND SUBANGULAR FRAGMENTS OF FINE
GRAINED SOMETIMES FELDSPAR PHYRIC DIABASES AND
BASALTS;
Alteration : FRESH
REACTION CORONA IN PCE 1B;
Leg : 60 Top/Bottom Interval(mm): 0/1490 Analyst: Fryer, P.
Hole: 453 Sample Midpoint (m) : 513.99
Core: 55 Top of Core Depth (m) : 512.50
Sect: 1 Top of Section Depth(m): 512.50
LITHOLOGY: POLYMICT BRECCIA;
Piece No. : PCE 1 (3-12), 2A (14-19), 2B (20-25), 2C (25-32),
2D (33-41), 2E (42-46), 2F (47-56), 2G (56-65),
2H (65-71), 2I (71-77), 2J (77-83), 3 (85-89),
4 (91-93), 5A (96-102), 5B (103-107), 5C (108-112),
6 (114-117), 7A (119-126), 7B (127-129),
8 (132-135), 9A (138-144), 9B (144-149);
Texture : POLYMICT BRECCIA PRIMARILY GABBRO WITH NUMEROUS
SMALL FRAGMENTS OF BASALT AND SOME DIABASE CEMENTED
IN A QUARTZ+HEMATITE MATRIX, PCES 1 AND 2G-H ARE
COARSE GRAINED GABBRO IN CONTACT WITH BRECCIA, PCES
2A-F AND 8-9B ARE PRIMARILY GABBRO FRAGMENTS IN
BRECCIA, PCES 2I-3 ARE POLYMICT BRECCIA, PCES 5-7B
ARE POLYMICT BRECCIA MAINLY OF APHYRIC TO FELDSPAR
PHYRIC BASALT, PCE 4 IS MICRODOLERITE, PCE 2G IS A
PEGMATITIC GABBRO;
Alteration : MOD
PCES 1 AND 2G AND 4 AND 7B-9A;
EXT;
REST OF SECTION, PCE 2G HAS A REACTION CORONA
(ALBITIC RIM);
Replacement: HEMATITE
QUARTZ
Leg : 60 Top/Bottom Interval(mm): 0/1490 Analyst: Meijer, A.
Hole: 453 Sample Midpoint (m) : 515.49
Core: 55 Top of Core Depth (m) : 512.50
Sect: 2 Top of Section Depth(m): 514.00
LITHOLOGY: POLYMICT BRECCIA;
Piece No. : PCE 1A (2-10), 1B (7-10), 1C (16-19), 1D (20-24),
2 (27-48), 3 (51-54), 4A (56-62), 4B (65-70),
5 (72-78), 6 (81-87), 7 (90-94), 8 (98-99),
9 (103-109), 10 (114-115), 11A (118-124),
11B (125-134), 11C (135-136), 11D (138-143),
12 (146-149);
Texture : PCES 1A-D ARE POLYMICT BRECCIA WITH CLASTS OF COARSE
GRAINED GABBRO AND METABASALT IN A RED-BROWN MATRIX,
PCE 2 CONSISTS OF SIMILAR MATERIAL TO PCE 1 BUT WITH
LESS BASALT CLASTS, PCE 3 IS THE SAME AS PCE 1, PCE
4A IS ANORTHOSITE GABBRO WITH PYX AND IS MOSTLY
CONVERTED TO URALITE+CHLORITE+SERPENTINE AND IS
PEGMATITIC, PCE 4B IS ANORTHOSITIC URALITIC GABBRO
CLAST IN POLYMICT BRECCIA, PCE 5 IS ALTERED URALITIC
GABBRO, PCE 6 IS POLYMICT BRECCIA WITH URALITIC
GABBRO CLASTS, PCES 7-8 ARE POLYMICT BRECCIA LIKE
PCE 1, PCES 9-12 ARE POLYMICT BASALT+GABBRO BRECCIA
WITH RED-BROWN MATRIX;
Alteration : SLIGHTLY;
Comments : RED BROWN MATRIX (10R4/4);
Replacement: CHLORITE
SERPENTINITE
URALITE
Leg : 60 Top/Bottom Interval(mm): 0/1490 Analyst: Meijer, A.
Hole: 453 Sample Midpoint (m) : 516.99
Core: 55 Top of Core Depth (m) : 512.50
Sect: 3 Top of Section Depth(m): 515.50
LITHOLOGY: POLYMICT BRECCIA;
Piece No. : PCE 1 (3-10), 2A (14-15), 2B (16-17), 3A (21-24),
3B (25-36), 3C (37-39), 3D (40-46), 3E (47-56),
3F (56-62), 3G (62-69), 4 (71-74), 5 (77-94),
6 (97-102), 7 (107-112), 8 (114-121), 9 (115-116),
10A (139-140), 10B (142-149);
Texture : PCES 1+2A+3A+3C-D+4+6+8A-C ARE POLYMICT BRECCIA WITH
GABBRO AND METABASALT CLASTS AND A RED-BROWN SILICA
CEMENTED MATRIX, PCE 2B IS A FINE GRAINED METABASALT
AND PCES 3B+3E-G+5A-B+7 ARE ANORTHOSITIC URALITE
GABBRO WHICH IS MEDIUM GRAINED TO PEGMATITIC AND
THE PYX AND PLAG ALTERED TO VARYING DEGREES, THE
BOTTOM OF PCE 3B IS PEGMATITIC, PCES 10A-B ARE
POLYMICT BRECCIA SIMILAR TO PCE 1 BUT MATRIX IS
GREY;
Alteration : SLIGHTLY;
Comments : MATRIX IN PCE 1 AND SIMILAR ROCK IS RED BROWN
(10R4/4) AND IN PCE 10A-B IS GREY (2.5YRN6/6);
Replacement: QUARTZ
Leg : 60 Top/Bottom Interval(mm): 0/1500 Analyst: Sharaskin, A.
Hole: 453 Sample Midpoint (m) : 518.50
Core: 55 Top of Core Depth (m) : 512.50
Sect: 4 Top of Section Depth(m): 517.00
LITHOLOGY: POLYMICT BRECCIA;
Piece No. : PCE 1 (4-7), 2 (10-12), 3 (14-20), 4A (21-30),
4B (31-37), 4C (38-42), 4D (42-45), 5A (48-55),
5B (55-63), 6A (65-67), 6B (68-71), 7 (73-75),
8 (77-80), 9A (82-90), 9B (91-96), 10 (99-104),
11 (105-109), 12A (110-117), 12B (118-123),
12C (124-129), 12D (130-135), 13 (138-150);
Texture : PCES FROM 1-4D ARE PCES OF BRECCIA WITH CLASTS AND
FRAGMENTS OF ANORTHOSITIC GABBRO AND FINE GRAINED
TO COARSE GRAINED DIABASES, IN THIS PORTION OF THE
SECTION THE CHANGE OF THE MATRIX COLOR TAKES PLACE,
THERE IS A SLIGHT CHANGE AT THE BOTTOM OF THE LAST
SECTION, PCES 5A-B ARE VERY COARSE GRAINED
PEGMATITIC GABBRO WITH PYX PARTLY CONVERTED TO MOD
BROWN SECONDARY PRODUCTS, PCES FROM 6A-13 ARE
MEDIUM GREENISH GREY BRECCIA OR SEPARATE FRAGMENTS
OF GABBRO (PYX-40-50%) MOSTLY WITH ORIENTED
ALIGNMENT OF DARK AND LIGHT COLORED MINERALS,
THE GREENISH SHADE OF GABBRO IS DUE TO ACTINOLITE AS
A SECONDARY PRODUCT AFTER PYX;
Structure : PCES 12A AND 13 HAVE FRACTURES ALONG WHICH MAFIC
MINERALS HAVE ALIGNED AT HIGH ANGLES OF INCLINE;
Alteration : FRESH;
Comments : AT BOTTOM OF PREVIOUS SECTION DARK GREENISH GREY
PATCHES (5G4/1) APPEAR WITHIN GREYISH RED (5R4/2) OR
DARK REDDISH BROWN (10R3/4) GNDMASS, IN PCE 4D THE
MATRIX COLOR BECOMES VERY DUSKY RED (10R2/2) OR VERY
DARK RED (5R2/6), THEN IN PCES 6A-B IT IS MEDIUM
GREENISH GREY (5G5/1), PCES 5A-B HAVE MOD BROWN
SECONDARY PRODUCTS AFTER PYX (5YR4/4);
Replacement: ACTINOLITE
Minerals Replaced: PYX
ACCOUNTS FOR GREENISH SHADE OF GABBRO;
MOD BROWN SECONDARY PRODUCTS AFTER PYX IN PCES
5A-B;
Leg : 60 Top/Bottom Interval(mm): 0/1480 Analyst: Fryer, P.
Hole: 453 Sample Midpoint (m) : 523.48
Core: 56 Top of Core Depth (m) : 522.00
Sect: 1 Top of Section Depth(m): 522.00
LITHOLOGY: POLYMICT BRECCIA;
Piece No. : PCE 1A (4-8), 1B (8-12), 2 (15-21), 3 (25-27),
4A (30-34), 4B (34-37), 4C (42-47), 4D (48-52),
4E (56-62), 4F (53-55), 5 (65-66), 6 (70-74),
7 (77-80), 8 (84-88), 9 (91-94), 10 (97-102),
11 (105-109), 12A (111-117), 12B (117-119),
13 (121-123), 14 (127-129), 15 (132-135),
16 (140-143), 17 (145-148);
Texture : POLYMICT BRECCIA PRIMARILY OF FRAGMENTS OF GABBRO
WITHIN A MATRIX OF CHLORITIC MATERIAL, MOST OF THE
FRAGMENTS ARE BADLY ALTERED, THERE ARE SCATTERED
XTLS OF QUARTZ AND PYRITE THROUGHOUT THE BRECCIA,
PCES 1-5 AND 8-9 ARE POLYMICT BRECCIA WITH FRAGMENTS
OF GABBRO, PCES 6-7 AND 10-11 ARE GABBRO FRAGMENTS
IN CONTACT WITH THE BRECCIA, PCE 12 IS MADE OF
FRAGMENTS OF MELANOCRATIC GABBRO IN CONTACT WITH
THE BRECCIA, PCES 13-16 ARE VERY ALTERED GABBROS
IN CONTACT WITH THE BRECCIA, PCE 17 IS A VERY
BADLY ALTERED DIABASE;
Structure : PCES 10-11 ARE SHOT THROUGH WITH WHITE VEINS, PCE 17
HAS A THICK VEIN OF WHITE MATERIAL;
Alteration : EXT;
Replacement: CHLORITE
MATRIX MATERIAL;
QUARTZ
PYRITE
Leg : 60 Top/Bottom Interval(mm): 0/1270 Analyst: Fryer, P.
Hole: 453 Sample Midpoint (m) : 524.77
Core: 56 Top of Core Depth (m) : 522.00
Sect: 2 Top of Section Depth(m): 523.50
LITHOLOGY: POLYMICT BRECCIA;
Piece No. : PCE 1 (4-7), 2 (9-11), 3 (14-17), 4 (20-23),
5 (27-30), 6A (34-48), 6B (49-52), 7 (55-59),
8 (62-65), 9 (68-72), 10 (74-77), 11 (80-82),
12 (85-91), 13 (94-97), 14 (101-103), 15 (108-110),
16 (112-119), 17 (122-127);
Texture : PRIMARILY ALTERED GABBRO FRAGMENTS WITH SOME
FRAGMENTS OF GABBRO IN CONTACT WITH POLYMICT BRECCIA
AND THE CEMENTING MATERIAL IS A MIXTURE OF CHLORITE
AND OTHER GREEN MATERIAL INTERSPERSED WITH QUARTZ
AND PYRITE XTLS, PCES 3+10+15-16 ARE BRECCIA
FRAGMENTS, PCES 1-2+6-9+11-14+17 ARE ALTERED GABBRO
PCES, PCE 17 HAS A CUMULATE TEXTURE, PCE 5 IS A
GABBRO FRAGMENT IN CONTACT WITH THE BRECCIA;
Alteration : EXT;
Replacement: CHLORITE
QUARTZ
PYRITE
Comments : GREY (5G4/1) CLASTIC CEMENT;
Leg : 60 Top/Bottom Interval(mm): 0/1500 Analyst: Sharaskin, A.
Hole: 453 Sample Midpoint (m) : 533.00
Core: 57 Top of Core Depth (m) : 531.50
Sect: 1 Top of Section Depth(m): 531.50
LITHOLOGY: POLYMICT BRECCIA;
Piece No. : PCE 1 (1-7), 2 (9-15), 3 (18-21), 4 (24-27),
5 (30-37), 6 (40-43), 7 (46-49), 8 (52-55),
9 (58-62), 10 (65-69), 11 (71-77), 12 (80-82),
13 (85-94), 14 (96-100), 15 (103-107),
16A (110-113), 16B (113-119), 17 (122-129),
18 (132-137), 19 (140-145), 20 (147-150);
Texture : PCES OF POLYMICT BRECCIA, ROCK FRAGMENTS ARE MOSTLY
GABBRO-NORITES AND DARK GREY FINE GRAINED DIABASES,
COLOR AND COMPOSITION OF BRECCIA CEMENT DEPENDS ON
THE TYPE OF ROCKS FORMING LARGE BLOCKS, PCES 2-3 ARE
FINE TO MEDIUM GRAINED PYX-PLAG PHYRIC DIABASES,
PCES 4+5+7+8+10+17+20 ARE MEDIUM TO COARSE GRAINED
NORITES WITH CUMULUS TEXTURE;
Comments : MATRIX IS GREENISH BLACK (5G2/1) OR DARK GREENISH
GREY (5G4/1) CLASTIC CEMENT;
Leg : 60 Top/Bottom Interval(mm): 0/1490 Analyst: Sharaskin, A.
Hole: 453 Sample Midpoint (m) : 534.49
Core: 57 Top of Core Depth (m) : 531.50
Sect: 2 Top of Section Depth(m): 533.00
LITHOLOGY: POLYMICT BRECCIA;
Piece No. : PCE 1 (2-6), 2 (7-10), 3 (12-15), 4 (17-20),
5 (21-25), 6 (26-31), 7 (34-39), 8 (41-46),
9 (47-51), 10A (54-58), 10B (59-63), 11 (64-69),
12 (70-72), 13 (75-80), 14 (82-90), 15 (93-98),
16A (100-107), 16B (108-114), 17A (17-122),
17B (122-125), 17C (126-130), 18A (133-136),
18B (138-140), 19 (143-149);
Texture : PCES OF POLYMICT BRECCIA, FROM PCES 1-10B MOSTLY
FRAGMENTS ARE CLASTS OF GABBRO-NORITES, PCES 11-19
FRAGMENTS AND CLASTS ARE DOMINANTLY ANORTHOSITIC
GABBRO, PCE 1 IS MEDIUM GRAINED DIABASE, PCES 3-4
ARE FINE TO MEDIUM GRAINED NORITES;
Comments : CEMENT IN PCES 1-10B IS GREENISH BLACK (5G2/1) AND
IN PCES 11-19 IS MORE LIGHT GREENISH GREY (5G6/1),
PCE 1 IS MEDIUM BLUISH GREY;
Leg : 60 Top/Bottom Interval(mm): 0/1490 Analyst: Sharaskin, A.
Hole: 453 Sample Midpoint (m) : 535.99
Core: 57 Top of Core Depth (m) : 531.50
Sect: 3 Top of Section Depth(m): 534.50
LITHOLOGY: BRECCIA;
Piece No. : PCE 1 (2-7), 2 (10-12), 3 (15-19), 4A (21-22),
4B (24-29), 5 (31-37), 6 (40-44), 7 (47-51),
8 (54-59), 9 (62-68), 10 (71-77), 11 (80-85),
12 (87-91), 13 (93-98), 14A (102-107),
14B (108-118), 15 (121-126), 16 (129-137),
17 (140-143), 18 (145-149);
Texture : PCES OF BRECCIA ALMOST COMPLETELY MONOMICT WITH
DOMINANT FRAGMENTS AND CLASTS OF THE COARSE GRAINED
TO PEGMATITIC ANORTHOSITIC GABBRO, CLASTS OF BASALTS
AND DIABASES ARE ABSENT, SEPARATE PCES OF GABBRO
ARE 1+7+14B+15-18, PCES 15+17+18 ARE PEGMATITIC
GABBROS;
Comments : CEMENT IS MEDIUM GREY (N6) TO DARK GREENISH GREY
(5G4/1) AND GETS REDDER TOWARDS BOTTOM;
Leg : 60 Top/Bottom Interval(mm): 0/1480 Analyst: Fryer, P.
Hole: 453 Sample Midpoint (m) : 537.48
Core: 57 Top of Core Depth (m) : 531.50
Sect: 4 Top of Section Depth(m): 536.00
LITHOLOGY: GABBRO BRECCIA;
Piece No. : PCE 1 (2-8), 2 (10-16), 3A (18-24), 3B (25-30),
4 (33-40), 5A (43-48), 5B (49-52), 6 (54-66),
7 (70-72), 8 (74-80), 9 (83-87), 10 (90-92),
11 (95-104), 12 (106-111), 13 (114-121),
14 (123-130), 15 (133-140), 16 (142-147);
Texture : GABBRO BRECCIA AND LARGE FRAGMENTS OF COARSE
GRAINED GABBRO AND GABBRO PEGMATITE IN A MATRIX
THAT IS SLIGHTLY MORE BROWNISH IN THE UPPER INTERVAL
OF THE SECTION AND GREYISH BLUE GREEN IN THE LOWER
INTERVAL, GABBRO FRAGMENTS VARY FROM COARSE TO
PEGMATITIC IN TEXTURE AND ARE ONLY MOD ALTERED, PCES
2-3B SHOW CONTACT OF THE BRECCIA WITH GABBRO
FRAGMENTS 4A+5+8+9+11+13+16, PEGMATITE IN PCES 12-14
AND GREEN MATRIX IN PCES 7-8;
Comments : MATRIX IS BROWNISH RED TO GREYISH RED AND GREYISH
BLUE GREEN IN THE BOTTOM, PCES 7-8 ARE GREEN;
Alteration : EXT
PCES 5A-B AND 7 AND 9-11 AND 15;
MOD
REST OF SECTION;
Leg : 60 Top/Bottom Interval(mm): 0/ 560 Analyst: Sharaskin, A.
Hole: 453 Sample Midpoint (m) : 538.06
Core: 57 Top of Core Depth (m) : 531.50
Sect: 5 Top of Section Depth(m): 537.50
LITHOLOGY: POLYMICT BRECCIA;
Piece No. : PCE 1 (2-9), 2 (11-18), 3A (21-27), 3B (28-34),
4 (35-41), 5 (44-47), 6 (50-56);
Texture : PCES OF POLYMICT BRECCIA, CLASTIC CEMENT MATERIAL
IS VERY COARSE GRAINED OR PEGMATITIC ANORTHOSITIC
GABBRO, PCE 4 IS SEVERAL CLASTS FINE GRAINED DARK
GREY DIABASE;
Comments : CLASTIC CEMENT IS DARK GREENISH GREY (5G4/1);
Leg : 60 Top/Bottom Interval(mm): 0/ 530 Analyst: Fryer, P.
Hole: 453 Sample Midpoint (m) : 541.53
Core: 58 Top of Core Depth (m) : 541.00
Sect: 1 Top of Section Depth(m): 541.00
LITHOLOGY: POLYMICT BRECCIA;
Piece No. : PCE 1 (3-10), 2 (14-16), 3 (19-21), 4 (24-29),
5 (32-34), 6 (37-40), 7 (42-45), 8 (48-53);
Texture : PCE 1 IS A METAMORPHOSED DIABASE, PCE 2 IS A
METABASALT WHICH IS BADLY ALTERED, PCE 3 IS A
METAMORPHOSED MEDIUM GRAINED BASALT SIMILAR TO PCE
1, PCES 4+6+8 ARE FRAGMENTS OF MICROBRECCIA, PCE 5
IS A FRAGMENT OF GABBRO IN CONTACT WITH BRECCIA,
PCE 7 IS A SEMILITHIFIED MUDSTONE CONTAINING SOME
COARSE FRAGMENTS OF MAFIC ROCK;
Structure : PCE 2 CONTAINS A 5MM WIDE VEIN OF QUARTZ RUNNING
THROUGH THE CENTER OF THE SAMPLE;
Comments : PCES 1+2+5 ARE PALE GREENISH GREY (5BG7/2), PCES
4+6+8 HAVE A DUSKY BROWN MATRIX (5YR2/2), PCE 7 IS
IN A GREYISH BROWN MATRIX (5YR3/2);
Alteration : EXT;
Leg : 60 Top/Bottom Interval(mm): 0/ 510 Analyst: Meijer, A.
Hole: 453 Sample Midpoint (m) : 551.01
Core: 59 Top of Core Depth (m) : 550.50
Sect: 1 Top of Section Depth(m): 550.50
LITHOLOGY: POLYMICT BRECCIA;
Piece No. : PCE 1 (2-4), 2 (7-9), 3 (12-15), 4 (17-20),
5 (23-25), 6 (27-31), 7 (35-37), 8 (43-44),
9 (47-51);
Texture : PCES 2-5 ARE FINE GRAINED METABASALTS, PCES 1 AND
6-8 ARE POLYMICT BRECCIA OR CONGLOMERATE (MAINLY
VOLCANIC IN ORIGIN), MATRIX OF BRECCIA IS CHLORITIC
IN NATURE AND CLAST SIZE IS GENERALLY <1CM, PCE 9
IS A CHUNK OF METAVOLCANIC ROCK WITH RELATIVELY
FRESH PLAG(2-3MM) + SULFIDE AND FINE GRAINED MATRIX,
INCLUDED IS GREENISH GREY BRECCIA MATRIX RIND;
Structure : QUARTZ VEINING IN PCES 2-5 AND MINOR IN PCES 1+6-8;
Alteration : EXT;
Comments : PCES 2-5 ARE GREENISH GREY (5GY6/1) AND MATRIX FOR
PCES 1 AND 6-8 ARE ALSO THIS COLOR, PCE 9 IS GREYISH
PURPLE (5P4/2);
Replacement: CHLORITE
PYRITE
DISSEMINATED IN PCES 2-5, RARE IN PCES 1 AND 6-8;
QUARTZ
SULFIDE
RARE IN PCE 9;
Leg : 60 Top/Bottom Interval(mm): 0/ 200 Analyst: Fryer, P.
Hole: 453 Sample Midpoint (m) : 560.20
Core: 60 Top of Core Depth (m) : 560.00
Sect: 1 Top of Section Depth(m): 560.00
LITHOLOGY: POLYMICT BRECCIA;
Piece No. : PCE 1 (2-10), 2 (14-20);
Texture : BADLY ALTERED POLYMICT BRECCIA WITH FRAGMENTS OF
MAFIC METAVOLCANIC ROCK CEMENTED IN A GREYISH BLUE
GREEN MATRIX;
Alteration : EXT;
Comments : COLOR OF MATRIX IS GREYISH BLUE GREEN (5BG5/2);
Leg : 60 Top/Bottom Interval(mm): 0/ 430 Analyst: Fryer, P.
Hole: 453 Sample Midpoint (m) : 569.93
Core: 61 Top of Core Depth (m) : 569.50
Sect: 1 Top of Section Depth(m): 569.50
LITHOLOGY: POLYMICT BRECCIA;
Piece No. : PCE 1A (3-6), 1B (3-7), 2A (12-13), 2B (11-12),
3 (16-19), 4 (23-26), 5 (31-35), 6 (39-43);
Texture : FRAGMENTS OF POLYMICT BRECCIA MOSTLY OF MAFIC
IGNEOUS MATERIAL CEMENTED IN A GREYISH BLUE GREEN
MATRIX;
Alteration : EXT;
Comments : MATRIX IS GREYISH BLUE GREEN (5BG5/2);
Leg : 60 Top/Bottom Interval(mm): 0/ 360 Analyst: Fryer, P.
Hole: 453 Sample Midpoint (m) : 579.36
Core: 62 Top of Core Depth (m) : 579.00
Sect: 1 Top of Section Depth(m): 579.00
LITHOLOGY: POLYMICT BRECCIA;
Piece No. : PCE 1 (1-6), 2 (8-10), 3 (14-15), 4A (18-20),
4B (21-23), 5 (26-30), 6 (54-55);
Texture : BRECCIA AND POORLY CEMENTED CONGLOMERATE WITH A
CLAY-LIKE MATRIX, PCES 1 AND 5 ARE CONGLOMERATE IN
A CLAYEY MATRIX AND THE REMAINING PCES ARE BRECCIA
OF LIGHTLY ALTERED MAFIC FRAGMENTS CEMENTED IN A
BLUE GREEN MATRIX;
Alteration : EXT;
Comments : THE CLAY-LIKE MATERIAL IN THIS CORE MIGHT REPRESENT
DRILLING SLURRY CREATED BY CORING SERPENTINITE (SOME
COATED OUTER PORTIONS OF CORE 63), MATRIX IS GREYISH
BLUE GREEN IN COLOR (5BG5/2);
Leg : 60 Top/Bottom Interval(mm): 0/1500 Analyst: Sharaskin, A.
Hole: 453 Sample Midpoint (m) : 590.00
Core: 63 Top of Core Depth (m) : 588.50
Sect: 1 Top of Section Depth(m): 588.50
LITHOLOGY: GABBRO-NORITE;
Piece No. : PCE 1 (2-6), 2A (7-24), 2B (25-28), 2C (29-31),
2D (32-35), 3A (35-42), 3B (40-46), 3C (45-65),
3D (55-61), 3E (61-64), 3F (64-75), 3G (70-80),
3H (77-80), 3I (79-80), 4A (82-90), 4B (90-99),
5A-5D (99-111), 5E-5G (114-123), 5H-5L (124-150);
Texture : PCE 1 IS A FRAGMENT OF METABASALT IN CONTACT WITH
BRECCIA CEMENT ON THE LOWER EDGE, ALL OTHER PCES ARE
BADLY SHEARED SERPENTINIZED GABBRO-NORITE,
ORIGINALLY IT WAS VERY COARSE GRAINED ROCK WITH
CUMULUS TEXTURE NOW CONVERTED INTO TECTONIC BRECCIA,
PRESERVED GABBRO FRAGMENTS ARE CEMENTED BY
SERPENTINIZED MILONITIC MASS, THIS MASS CONSTITUTES
30-40% OF ROCK VOLUME;
Structure : PRESERVED GABBRO FRAGMENTS HAVE SLICKENSIDES, THIN
VEINS OF PYRITE THROUGHOUT THE LOWER INTERVAL;
Alteration : EXT;
Comments : PCE 1 IS MEDIUM BLUISH GREY (5B5/1) AND BRECCIA
CEMENT IS DARK GREENISH GREY (5G4/1), SERPENTINIZED
PCES ARE GREENISH BLACK (5G2/1), PLASTIC CAP PLUG
HALVES HAVE BEEN GLUED INTO THE LINER FOR SUPPORT
RATHER THAN STYROFOAM SPACERS;
Replacement: SERPENTINITE
PYRITE
Leg : 60 Top/Bottom Interval(mm): 0/ 90 Analyst: Meijer, A.
Hole: 453 Sample Midpoint (m) : 598.09
Core: 64 Top of Core Depth (m) : 598.00
Sect: 1 Top of Section Depth(m): 598.00
LITHOLOGY: GABBRO;
Piece No. : PCE 1A (2-6), 1B (6-9);
Texture : METAGABBRO WHICH IS MEDIUM GRAINED WITH FOLIATED
TEXTURE;
Structure : ABUNDANT VEINS OF CHLORITE AND ALBITE(?);
Alteration : EXT;
Comments : GABBRO IS GREYISH GREEN (5G5/2), ONE PCE BROKEN IN
TWO BUT NOT IN THE ARCHIVE HALF, PCES MAY HAVE
FALLEN DOWN THE HOLE FROM ABOVE-CORE 63;
Replacement: CHLORITE
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