Leg : 35 Top/Bottom Interval(mm): 0/ 290 Analyst: Zhivago, V.N.
Hole: 322 Sample Midpoint (m) : 513.29
Core: 11 Top of Core Depth (m) : 504.00
Sect: CC Top of Section Depth(m): 513.10
LITHOLOGY: SEDIMENT (CLAYSTONE);
Leg : 35 Top/Bottom Interval(mm): 290/ 340 Analyst: Vennum, W.
Hole: 322 Sample Midpoint (m) : 513.34
Core: 11 Top of Core Depth (m) : 504.00
Sect: CC Top of Section Depth(m): 513.29
LITHOLOGY: BASALT;
Piece No. : PCE NO PIECE NUMBERS ASSIGNED;
Comments : CONSISTS OF TWO ROUNDED COBBLES, DIMENSIONS ARE 3X2" & 0.75X1", BASALT-CLAYSTONE CONTACT NOT RECOVERED--
NO EVIDENCE OF CONTACT METAMORPHISM, SEE THIN
SECTION DESCRIPTION FOR MORE DATA;
Leg : 35 Top/Bottom Interval(mm): 0/1500 Analyst: Vennum, W.
Hole: 322 Sample Midpoint (m) : 515.00
Core: 12 Top of Core Depth (m) : 513.50
Sect: 1 Top of Section Depth(m): 513.50
LITHOLOGY: DRILL CUTTINGS;
Piece No. : PCE NO PIECE NUMBERS ASSIGNED;
Comments : ENTIRE CORE EXCEPT FOR COBBLES IS DRILL CUTTINGS,
SAND WITH ANGULAR (MOSTLY) TO SUB-ANGULAR CLAY
PEBBLES UP TO 10MM LONG, PEBBLES HAVE HARDNESS=2,
75% ARE DARK GRAY (N3) & REST ARE DUSKY YELLOWISH
BROWN (10YR 2/2) & DARK GREENISH GRAY (5G 4/1) &
DARK YELLOWISH BROWN (10YR 4/2), GRAYISH GREEN
(10G 4/2) SAND-SIZED FRACTION CONTAINS SAME MATERIAL
AS ABOVE;
Vesicles : TRACE AMOUNT OF AMYGDULE FILLING MATERIAL (SEE
COBBLE DESCRIPTION BELOW);
Replacement: FERROUS OXIDE
5% HAVE COATINGS OF DUSKY RED (5R 3/4) FE.OXIDES;
Leg : 35 Top/Bottom Interval(mm): 930/1480 Analyst: Vennum, W.
Hole: 322 Sample Midpoint (m) : 514.98
Core: 12 Top of Core Depth (m) : 513.50
Sect: 1 Top of Section Depth(m): 514.43
LITHOLOGY: GLASS;
Piece No. : PCE NO PIECE NUMBERS ASSIGNED, INTERVALS 93&94&147&
148CM;
Comments : GLASS FRAGMENTS, LARGEST FRAGMENT (93CM INTERVAL) IS
10X12MM, GRADES FROM BLACK (N1) THROUGH VERY DUSKY
RED (10R 2/2) & MODERATE REDDISH BROWN (10R 4/6) TO
A 2MM THICK RIM OF LAMINATED DARK YELLOWISH ORANGE
(10YR 6/6), REMAINDER OF MATERIAL IS BASALTIC WITH
SAME COMPOSITION AS COBBLES;
Leg : 35 Top/Bottom Interval(mm): 720/1230 Analyst: Vennum, W.
Hole: 322 Sample Midpoint (m) : 514.73
Core: 12 Top of Core Depth (m) : 513.50
Sect: 1 Top of Section Depth(m): 514.22
LITHOLOGY: BASALT;
Piece No. : PCE 1 (72-77), 2 (81-87), 3 (95-99), 4 (101-104),
5 (105-109), 6 (109-113), 7 (111-116), 8 (116-119),
9 (120-123);
Texture : PIECES ARE BASALT COBBLES, PCE 7 IS STRONGLY ZONED
WITH DARKER CORE;
Structure : VERY SMALL CHLORITE? VEIN IN PCE 6 (.5X15MM LONG);
Comments : SEE THIN SECTION DESCRIPTION FOR MORE DATA;
Vesicles : AMYGDULES PRESENT--SPARSE IN PCES 1-7 TO ALMOST
TOTALLY ABSENT IN PCES 8&9;
Groundmass : PLAGIOCLASE
Size(mm): <1-2.5
TRACE AMOUNTS PLAG LATHS TO 2.5MM LONG IN PCES 3&
4, SMALL PATCH OF BLOCKY PLAG CRYSTALS <1MM WIDE
IN PCE 7, SMALL CLOT IN PCE 5;
Replacement: CHLORITE
Leg : 35 Top/Bottom Interval(mm): 0/ 0 Analyst: Vennum, W.
Hole: 322 Sample Midpoint (m) : 515.10
Core: 12 Top of Core Depth (m) : 513.50
Sect: CC Top of Section Depth(m): 515.10
LITHOLOGY: DRILL CUTTINGS;
Comments : SAME SIZE AND LITHOLOGY AS DESCRIBED ABOVE;
Leg : 35 Top/Bottom Interval(mm): 70/ 730 Analyst: Vennum, W.
Hole: 322 Sample Midpoint (m) : 534.73
Core: 13 Top of Core Depth (m) : 532.50
Sect: 2 Top of Section Depth(m): 534.07
LITHOLOGY: BASALTIC BRECCIA;
SEDIMENT (CLAY);
Piece No. : PCE 1 (7-12), 5 (24-27), 6 (24-28), 7 (27-29),
10 (38-40), 18 (72-73);
Texture : COBBLES, CONTAINS TWO TYPES OF FRAGMENTS: TYPE 1 ARE
ANGULAR PARTICLES WITH DIAMETER UP TO 3MM THAT ARE
OFTEN CONCENTRICALLY ZONED FROM DARK TO LIGHT
OUTWARD--TYPE 2 ARE VERY FINE-GRAINED WITH AVERAGE
SIZE 0.5-1CM AND MAXIMUM SIZE 3X1.5CM--SOME CONTAIN
PIECES OF TYPE 1 FRAGMENTS AND SOME VERY SMALL BLACK
CRYSTALS;
Alteration : TYPE 2 ALMOST COMPLETELY ALTERED TO CLAY MINERALS
&/OR PALAGONITE;
Comments : TYPE 1 FRAGMENTS ARE LIGHT OLIVE (10Y 5/4) TO
MODERATE GREENISH YELLOW (10Y 7/4), TYPE 2 FRAGMENTS
ARE DARK YELLOWISH ORANGE (10YR 6/6);
Replacement: CLAY
GROUNDMASS BROWNISH BLACK (5YR 2/1) CLAY, ALTERED
CLAY MINERALS;
PALAGONITE
Leg : 35 Top/Bottom Interval(mm): 130/ 190 Analyst: Vennum, W.
Hole: 322 Sample Midpoint (m) : 534.19
Core: 13 Top of Core Depth (m) : 532.50
Sect: 2 Top of Section Depth(m): 534.13
LITHOLOGY: BASALT COBBLE;
Piece No. : PCE 2 (13-19);
Texture : VERY SMALL SPHERULITIC SPOTS;
Structure : VEINING;
Comments : MOST OF THIS COBBLE IS COATED WITH DARK YELLOWISH
ORANGE (10YR 6/6) TO MODERATE BROWN (5YR 4/4) FE.OX
AND SMALL AMOUNTS OF MN DENDRITES--REMAINDER OF
COBBLE SURFACE IS COVERED WITH A 5-10MM THICK RIND
OF BLACK (N1) GLASS THAT IS VEINED TO VERY DARK RED
(5R 2/6) GLASS THAT GRADES OUT TO MODERATE REDDISH
BROWN GLASS (10R 4/6)--THE BLACK GLASS GRADES IN
THROUGH BLACKISH RED (5R 2/2) GLASS TO A ZONE OF
MEDIUM GRAY (N5) ROCK THAT IS CROWDED WITH VERY
SMALL SPHERULITIC SPOTS;
Groundmass : GLASS
Replacement: FERROUS OXIDE
MANGANESE OXIDE
MN DENDRITES;
Leg : 35 Top/Bottom Interval(mm): 180/ 200 Analyst: Vennum, W.
Hole: 322 Sample Midpoint (m) : 534.20
Core: 13 Top of Core Depth (m) : 532.50
Sect: 2 Top of Section Depth(m): 534.18
LITHOLOGY: MICROPORPHYRITIC BASALT;
Piece No. : PCE 3 (18-20);
Texture : INCIPIENT VARIOLITIC TEXTURE, MICROPORPHYRITIC, 1-2%
CLEAR GLASSY PLAG? CRYSTALS APPROXIMATELY 1MM IN
SIZE--SOME OF WHICH SHOW CONCHOIDAL FRACTURES &
OTHERS WHICH SHOW GOOD CLEAVAGE SURFACES;
Vesicles : Size(mm): TO 1 Percent:
TRACE OF MODERATE GREEN (5G 5/6) AMYGDULES UP TO
1MM IN DIAMETER;
Phenocrysts: OLIVINE
Size(mm): TO 1
GROUNDMASS CONTAINS GLASSY CLEAR ANGULAR CRYSTALS
(SAME AS MICROPHENOCRYSTS) OF WHICH A FEW ARE
DOUBLE SWALLOWTAILED;
Groundmass : MEDIUM GRAY (N5) GROUNDMASS;
Replacement: FERROUS OXIDE
STAINING PALE YELLOWISH ORANGE (10YR 8/6) &
MODERATE REDDISH BROWN (10R 4/6);
Leg : 35 Top/Bottom Interval(mm): 200/1500 Analyst: Vennum, W.
Hole: 322 Sample Midpoint (m) : 535.50
Core: 13 Top of Core Depth (m) : 532.50
Sect: 2 Top of Section Depth(m): 534.20
LITHOLOGY: BASALT;
Piece No. : PCE 4 (20-24), 8 (28-33), 9 (33-37), 11 (37-40),
12 (41-43), 13 (40-43), 14 (44-47), 15 (48-54),
16 (58-64), 17 (66-70), 19 (143-148);
Texture : FELTED TEXTURE, VERY FINE-GRAINED, COBBLES;
Comments : BROWNISH GRAY (5YR 4/1);
Groundmass : GLASS
SMALL AMOUNT IN PCE 16 (SAME TYPE AS IN PCE 2);
Replacement: FERROUS OXIDE
EXTENSIVE FE.OXIDE STAINING MODERATE BROWN
(5YR 4/4) TO LIGHT BROWN (5YR 5/6);
MANGANESE OXIDE
A FEW MN DENDRITES;
Leg : 35 Top/Bottom Interval(mm): 0/1500 Analyst: Vennum, W.
Hole: 322 Sample Midpoint (m) : 535.50
Core: 13 Top of Core Depth (m) : 532.50
Sect: 2 Top of Section Depth(m): 534.00
LITHOLOGY: BASALT;
SEDIMENT (CLAY);
GLASS;
Comments : ALL OF THE COBBLES IN SEC 13-2 REST IN A MATRIX OF
DRILL CUTTINGS--CLAY & BASALT FRAGMENTS & GLASS;
Leg : 35 Top/Bottom Interval(mm): 0/ 0 Analyst: Vennum, W.
Hole: 322 Sample Midpoint (m) : 535.60
Core: 13 Top of Core Depth (m) : 532.50
Sect: CC Top of Section Depth(m): 535.60
LITHOLOGY: BASALT;
Piece No. : PCE NO PIECE NUMBERS ASSIGNED;
Texture : CONTAINS 2 COBBLES OF SAME SIZE AND LITHOLOGY AS
COBBLES 4&8&9&11-17&19 IN SEC 13-2 PLUS 2 OR 3
GRAVEL-SIZED FRAGMENTS OF SAME LITHOLOGY AS ABOVE;
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