Leg : 79 Top/Bottom Interval(mm): 0/ 570 Analyst: Bradshaw, M.J.
Hole: 544A Sample Midpoint (m) : 175.57
Core: 22 Top of Core Depth (m) : 175.00
Sect: 1 Top of Section Depth(m): 175.00
LITHOLOGY: SEDIMENT(SANDY MUDSTONE);
Leg : 79 Top/Bottom Interval(mm): 570/ 830 Analyst: Bradshaw, M.J.
Hole: 544A Sample Midpoint (m) : 175.83
Core: 22 Top of Core Depth (m) : 175.00
Sect: 1 Top of Section Depth(m): 175.57
LITHOLOGY: GRANITE PEBBLES;
SEDIMENT;
Piece No. : (57-83CM);
Texture : POORLY SORTED, COARSE PEBBLY GRAINS;
Structure : 2X2MM GRANITE PEBBLES AT TOP(SUB-UNIT), PEBBLY,
GRAIN SUPPORTED, DOMINANTLY QUARTZ AND FELDSPAR AND
WEATHERED GRANITE FRAGMENTS;
Alteration : GRAIN SUPPORTED - SHOW SIGNS OF WEATHERING;
Comments : GRAYISH-RED(10R4/2);
Leg : 79 Top/Bottom Interval(mm): 830/ 950 Analyst: Bradshaw, M.J.
Hole: 544A Sample Midpoint (m) : 175.95
Core: 22 Top of Core Depth (m) : 175.00
Sect: 1 Top of Section Depth(m): 175.83
LITHOLOGY: GRANITE-GNEISS PEBBLES;
Piece No. : (83-95CM);
Structure : 2 TO 3-4CM IN DIAMETER OF GRANITE-GNEISS PEBBLES,
ONE IS 7CM IN DIAM OF FRESH GRANITIC-GNEISS COBBLE;
Alteration : TWO EXHIBIT FELDSPAR WEATHERING AND THE COBBLE IS
FRESH;
Leg : 79 Top/Bottom Interval(mm): 0/ 310 Analyst: Jansa, L.F.
Hole: 544A Sample Midpoint (m) : 184.31
Core: 23 Top of Core Depth (m) : 184.00
Sect: 1 Top of Section Depth(m): 184.00
LITHOLOGY: GRANITE-GNEISS BRECCIA;
Piece No. : PCES (0-3), (3-7), (7-11), (11-14.5), (14.5-31);
Texture : PCE(0-3CM) IS MOTTLED TO RED GREY(10R4/6),
PCE(11-14.5) IS PEBBLY AND MUDDY AND UNSORTED
FRIABLES, GRANITE-GNEISS BRECCIA;
Structure : PCE(0-3CM) HAS PEBBLES OF GNEISS 1CM IN DIAMETER
AND QUARTZ AND FELDSPAR SAND-FRIABLE, PCE(3-7CM)
HAS A PEBBLE(3CM IN DIAMETER) OF FRESH GRANITIC
GNEISS, PCE(7-11CM) HAS FRAGMENTS OF WEATHERED
GNEISS AND CLAY MATRIX-CLAY VEINED, PCE(11-14.5) HAS
2X6CM PEBBLES OF WEATHERED FOLIATED GNEISS WITH
FELDSPAR VERY MOTTLED, MUDDY GRANULES AND SEDIMENTS,
PCE(14-31CM) CONTAINS 2CM IN DIAMETER PEBBLES AT
ABOUT 25-27CM;
Alteration : MOD
PCES(0-3,7-11,11-14.5);
FRESH
PCE(3-7) HAS FRESH PEBBLE;
Comments : PCE(0-3) IS GREY-PINK(FRIABLE PART) AND MOTTLED
PART IS RED GREY(10R4/6);
Replacement: CLAY
PRESENT IN VEINS AND MATRIX IN PCE(7-11);
Leg : 79 Top/Bottom Interval(mm): 0/ 570 Analyst: Jansa, L.F.
Hole: 544A Sample Midpoint (m) : 193.57
Core: 24 Top of Core Depth (m) : 193.00
Sect: 1 Top of Section Depth(m): 193.00
LITHOLOGY: GRANITIC GNEISS;
Piece No. : PCE (0-57);
Structure : 3-4CM DIAMETER FRAGMENTS OF FRESH GRANITIC GNEISS-
FOLIATED ON 2-3M, 2-3M SIZE K-FELDSPAR AND ALSO GREY
QUARTZ IS 2-3M, COULD BE SOME FRACTURES AND JOINTING
80 DEGREES TO FOLIATION;
Alteration : FRESH;
Comments : PALE REDDISH BROWN 10R5/4;
Groundmass : QUARTZ
Size(mm): 2-3
GREY;
KFELDSPAR
Size(mm): 2-3
Leg : 79 Top/Bottom Interval(mm): 0/ 430 Analyst: Jansa, L.F.
Hole: 544A Sample Midpoint (m) : 202.43
Core: 25 Top of Core Depth (m) : 202.00
Sect: 1 Top of Section Depth(m): 202.00
LITHOLOGY: GRANITIC GNEISS;
SAME AS CORE 24-1;
Leg : 79 Top/Bottom Interval(mm): 0/ 500 Analyst: Jansa, L.F.
Hole: 544A Sample Midpoint (m) : 207.00
Core: 26 Top of Core Depth (m) : 206.50
Sect: 1 Top of Section Depth(m): 206.50
LITHOLOGY: GRANITIC GNEISS;
SAME AS CORE 24-1 AND 25-1;
Piece No. : PCE(0-50);
Structure : LARGE K-SPARS UP TO 6MM AND PERPENDICULAR TO
FOLIATION AND 1CM PARALLEL TO FOLIATION;
Alteration : FRESH
EXCEPT MICAS ARE PARTLY WEATHERED AND WEATHERED TO
HEMATITE;
Groundmass : MICA
MOSTLY BIOTITE;
KFELDSPAR
Size(mm): 6-10
6MM PERPENDICULAR TO FOLIATION AND 1CM PARALLEL TO
FOLIATION;
Replacement: HEMATITE
Minerals Replaced: MICA
Leg : 79 Top/Bottom Interval(mm): 0/ 420 Analyst: Jansa, L.F.
Hole: 544A Sample Midpoint (m) : 216.42
Core: 27 Top of Core Depth (m) : 216.00
Sect: 1 Top of Section Depth(m): 216.00
LITHOLOGY: GRANITIC GNEISS;
SIMILAR TO 26-1;
Structure : JOINTING STILL SUBVERTICAL TO FOLIATION, HEMATITE
STAINING ALONG FRACTURING AND MICROFRACTURING,
MICROFRACTURING IS ON SMALLER SCALE;
Comments : SOME INFORMATION TAKEN FROM I.R. SITE CHAPTER;
Groundmass : MICA
MOSTLY BIOTITE WITH SOME OXIDIZED TO HEMATITE;
Replacement: HEMATITE
Minerals Replaced: MICA
SOME HEMATITE FROM OXIDIZED MICA AND ALSO HEMATITE
STAINING;
Leg : 79 Top/Bottom Interval(mm): 0/ 240 Analyst: Jansa, L.F.
Hole: 544A Sample Midpoint (m) : 225.74
Core: 28 Top of Core Depth (m) : 225.50
Sect: 1 Top of Section Depth(m): 225.50
LITHOLOGY: GRANITIC GNEISS;
SIMILAR TO 27-1;
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