Leg : 54 Top/Bottom Interval(mm): 0/ 50 Analyst: Dmitriev, Y.
Hole: 428 Sample Midpoint (m) : 62.05
Core: 5 Top of Core Depth (m) : 57.50
Sect: 4 Top of Section Depth(m): 62.00
LITHOLOGY: SEDIMENT;
NANNOFOSSIL OOZE;
Leg : 54 Top/Bottom Interval(mm): 50/ 960 Analyst: Dmitriev, Y.
Hole: 428 Sample Midpoint (m) : 62.96
Core: 5 Top of Core Depth (m) : 57.50
Sect: 4 Top of Section Depth(m): 62.05
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (6-12), 2 (14-20), 3 (21-30), 4 (32-40),
5 (41-50), 6 (51-55), 7 (56-61), 8 (64-75),
9 (76-86), 10 (89-96);
Texture : APHYRIC,FINE-GRAINED,BLACK GLASS FRINGE(QUENCHING
ZONE) ON PCE 1;
Structure : FISSURES;
Alteration : FRESH
PCES 1-7+9;
SLIGHTLY
PCES 8+10,GREEN CLAY.MINS ALONG FISSURES,WEATHERED
OXIDATION ZONE UP TO 1.5CM ON ONE SIDE OF PCE 8,
OXIDIZED ZONE ON PCE 10,GREEN CLAY.MINS PATCHES IN
GNDMASS;
Comments : WEATHERING IS PARALLEL TO VERTICAL JOINTS IN PCES
8+10,TOP OF COOLING UNIT INDICATED BY CHILLED RIND
ON PCE 1;
Vesicles :
Location: Filling: CLAY.MINS
Shape : PINPOINT
GREEN CLAY.MINS LINES VESICLES,EMPTY PINPOINT
VESICLES IN PCE 2,IRREGULAR VUGS 1-2% & <1MM IN
PCE 9;
Replacement: CLAY MINERALS
GREEN CLAY.MINS IN GNDMASS AS PATCHES(FINE-
GRAINED),GREEN CLAY.MINS IN FISSURES & VESICLES;
Leg : 54 Top/Bottom Interval(mm): 0/1500 Analyst: Dmitriev, Y.
Hole: 428 Sample Midpoint (m) : 68.50
Core: 6 Top of Core Depth (m) : 67.00
Sect: 1 Top of Section Depth(m): 67.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (0-5), 2 (6-13), 3 (14-22), 4 (24-31),
5 (33-37), 6 (39-44), 7 (45-53), 8A (54-63),
8B (63-71), 8C (71-78), 8D (78-86), 8E (86-97),
9 (97-105), 10A (106-120), 10B (120-132),
10C (132-142), 10D (142-150);
Texture : APHYRIC,FINE-GRAINED;
Structure : SCORIAL-LIKE STRUCTURES IN PCE 6,VERTICAL &
HORIZONTAL FRACTURING OCCURS IN PCES DETERMINING
WEATHERING;
Alteration : FRESH
PCES 1-5+7-9;
SLIGHTLY
PCES 6+10A-10D(WEATHERED OXIDIZED RIND PARALLELS
JOINTS),VERTICAL FRACTURES IN PCES 10A-10D CONTROL
WEATHERING & HORIZONTAL FRACTURES CONTROL
WEATHERING IN PCE 6;
Comments : VERTICAL JOINTS BOUND LEFT SIDE OF CORE;
Vesicles : Size(mm): 1-2 Percent: 15
Location: Filling: UNIDENT.MINS
Shape : IRREGULAR
VESICLES ARE LARGE & IRREGULAR COMPARED WITH THE
REST OF THE SECTION (PCE 6),WHITISH UNIDENT.MINS
LINES VESICLES;
Size(mm): Percent: RARE
Location: Filling:
Shape : PINHOLE
RARE EMPTY PINHOLE VESICLES THROUGHOUT CORE EXCEPT
IN PCES 6+10A-10D;
Replacement: UNIDENTIFIED
WHITISH UNIDENT.MINS LINES VESICLES IN PCE 6;
CLAY MINERALS
IN VESICLES & COATING ON SURFACES OF PCES 8A-8C;
Leg : 54 Top/Bottom Interval(mm): 0/1200 Analyst: Humphris, S.
Hole: 428 Sample Midpoint (m) : 69.70
Core: 6 Top of Core Depth (m) : 67.00
Sect: 2 Top of Section Depth(m): 68.50
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCES 1 (0-12), 2 (15-24), 3 (25-31), 4 (32-39),
5 (40-50), 6 (52-56), 7 (57-69), 8 (70-80),
9 (82-90), 10 (93-101), 11 (104-110), 12 (113-119);
Texture : APHYRIC,APHANITIC TO GLASSY & FINE-TO-MEDIUM-
GRAINED,CHILLED MARGIN WITH SMALL AMOUNT OF GLASS IN
PCE 12;
Structure : MASSIVE STRUCTURE PCES 5-10;
Alteration : FRESH
PCES 1-5;
SLIGHTLY
PCES 6-12,VERTICAL JOINT CONTROLS WEATHERING IN
PCES 7-11,OXIDIZED RIND PARALLEL TO JOINT IN PCES
6-12 MOSTLY 1CM THICK;
Comments : THIN MN CRUST ON PCE 9 ALSO FE-MN CRUST ON PCE 10 &
FE.OXIDE CRUST ON PCE 12;
Vesicles :
Location: Filling:
Shape : PINPOINT
SMALL PINPOINT VESICLES SCATTERED THROUGHOUT PCES
1-4;
Replacement: FERROUS OXIDE
FOUND ON RIND OF PCE 12;
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