Leg : 29 Top/Bottom Interval(mm): 550/ 800 Analyst: Ovenshine, A.T.
Hole: 283 Sample Midpoint (m) : 589.30
Core: 18 Top of Core Depth (m) : 588.50
Sect: 1 Top of Section Depth(m): 589.05
LITHOLOGY: BASALT;
Piece No. : PCES 1 (55-60), 2 (60-64), 3 (65-71), 4 (72-78);
Texture : FELDSPAR LATHS, DEVITRIFIED BASALTIC GLASS AND IS
LIGHT GREENISH GREY;
Structure : CALCITE AND SERPENTINE VEINLETS, PCE 4 HAS A 2 CM
DARK RED PALAGONITE VEINLET WHICH SUGGESTS INTER-
PILLOW GLASS;
Comments : DEVITRIFIED BASALTIC GLASS, LIGHT GREENISH GREY
(5 G 7/1), SEE LITHOLOGIC DESCRIPTION IN THE
INITIAL REPORT FOR MORE INFORMATION;
Groundmass : FELDSPAR ( < 2%)
ROCK CONSISTS OF LESS THAN OR EQUAL TO 2 PERCENT
FELDSPAR LATHS IN GROUNDMASS OF CLAY + ZEOLITE +
SERPENTINE;
Replacement: CLAY
ZEOLITE
SERPENTINITE
ROCK CONSISTS OF LESS THAN OR EQUAL TO 2 PERCENT
FELDSPAR LATHS IN GROUNDMASS OF CLAY + ZEOLITE +
SERPENTINE;
CALCITE
PALAGONITE
SERPENTINITE
CALCITE AND SERPENTINE VEINLETS, PCE 4 HAS A DARK
RED PALAGONITE VEINLET;
Leg : 29 Top/Bottom Interval(mm): 800/1000 Analyst: Ovenshine, A.T.
Hole: 283 Sample Midpoint (m) : 589.50
Core: 18 Top of Core Depth (m) : 588.50
Sect: 1 Top of Section Depth(m): 589.30
LITHOLOGY: BASALT;
BASALTIC BRECCIA;
Piece No. : PCES 5 (80-83), 6 (83-100);
Texture : TECTONIC OR AUTOBRECCIA CONSISTS OF AMYGDALOIDAL
BASALT (80 PERCENT), DARK DEVITRIFIED GLASS
FRAGMENTS (5 PERCENT);
Structure : TECTONIC OR AUTOBRECCIA CONSISTS OF AMYGDALOIDAL
BASALT (80 PERCENT) + CALCITE VEINS (15 PERCENT)
+ DARK DEVITRIFIED GLASS FRAGMENTS (5 PERCENT),
MINOR DARK GREEN SERPENTINE VEINLETS;
Alteration : ALTERED BASALTIC BRECCIA;
Comments : DARK GREENISH-GREY (5 GY 3/1);
Vesicles : Size(mm): 1 Percent:
TECTONIC OR AUTOBRECCIA IS 80 PERCENT AMYGDALOIDAL
BASALT, AMYGDULES AVERAGE 1 MM;
Groundmass : GLASS
DARK DEVITRIFIED GLASS FRAGMENTS;
Replacement: CALCITE
CALCITE VEINS;
SERPENTINITE
DARK GREEN SERPENTINE VEINLETS;
Leg : 29 Top/Bottom Interval(mm): 1000/1500 Analyst: Ovenshine, A.T.
Hole: 283 Sample Midpoint (m) : 590.00
Core: 18 Top of Core Depth (m) : 588.50
Sect: 1 Top of Section Depth(m): 589.50
LITHOLOGY: BASALT;
Piece No. : PCES 7 (100-106), 8 (105-110), 9 (110-117),
10 (111-116), 11 (118-131), 12 (132-139),
13 (139-150);
Texture : ZONES OF BRECCIATION;
Structure : ALTERED BASALT CUT BY CALCITE AND SERPENTINE
VEINLETS UP TO 1 CM;
Comments : DARK GREENISH GREY (5 GY 3/1), ZONES OF BRECCIATION;
Alteration : EXTENSIVELY ALTERED;
Replacement: SERPENTINITE
CALCITE
ALTERED BASALT CUT BY CALCITE AND SERP VEINLETS;
Leg : 29 Top/Bottom Interval(mm): 0/ 800 Analyst: Ovenshine, A.T.
Hole: 283 Sample Midpoint (m) : 590.30
Core: 19 Top of Core Depth (m) : 589.50
Sect: 1 Top of Section Depth(m): 589.50
LITHOLOGY: BASALT;
Piece No. : PCES 1 (0-13), 2 (14-18), 3 (19-22), 4 (22-27),
5 (27-31), 6 (32-38), 7 (40-47), 8 (48-51),
9 (51-54), 10 (52-59), 11 (55-59), 12 (60-64),
13 (64-69), 14 (70-76), 15 (75-79);
Texture : CHILLED RIM, (SEE STRUCTURE FOR ADDITIONAL
INFORMATION);
Structure : FRAGMENT (PCE 6 INTERVAL 32-38 CM) CONTAINS A
FRAGMENT OF THE UPPER SURFACE OF A PILLOW SHOWING A
DEVITRIFIED GLASS VENEER AND A CHILLED RIM GRADING
DOWNWARD TO HOLOCRYSTALLINE ALTERED BASALT - THIS
FRAGMENT STRONGLY SUGGESTS THAT THE BASALT WAS
EITHER A PILLOW FLOW OR A BROKEN PILLOW BRECCIA;
Alteration : EXTENSIVELY ALTERED;
Comments : LITHOLOGY SIMILAR TO CORE 18 SECTION 1 INTERVAL
100-150 CM, FRAGMENT OF THE UPPER SURFACE OF
PILLOW SHOWING A DEVITRIFIED GLASS VENEER - SEE
STRUCTURE FOR ADDITIONAL INFORMATION, SEE CORE FORM
AND LITHOLOGIC DESCRIPTION IN THE INITIAL REPORT FOR
FURTHER DETAILS;
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