Leg : 24 Top/Bottom Interval(mm): 600/1500 Analyst: Kinsman, D.J.J.
Hole: 231 Sample Midpoint (m) : 568.00
Core: 62 Top of Core Depth (m) : 566.50
Sect: 1 Top of Section Depth(m): 567.10
LITHOLOGY: SEDIMENT (NANNO CHALK);
BASALT;
VOLCANIC GLASS;
Comments : NANNO CHALK (GREENISH GRAY 5 G 6/1) IN (INTERVAL 60-
65 CM), BLACK VOLCANIC GLASS (INTERVAL 65-85 CM),
NANNO CHALK (GREENISH GRAY 5 G 6/1) IN (INTERVAL 85-
101 CM), INTRUDED CONTACT AT 101 CM, VOLCANIC GLASS
AND BASALT (INTERVAL 101-126 CM), NANNO CHALK
(GREENISH GRAY 5 G 6/1) (INTERVAL 126-136 CM),
VESICULAR BASALT (INTERVAL 136-150 CM), THIS
INFORMATION FROM VISUAL CORE DESCRIPTION
(SHIPBOARD DATA), SEE CORE FORM AND LITHOLOGIC
DESCRIPTION IN THE INITIAL REPORTS FOR MORE
INFORMATION;
Vesicles : VESICULAR BASALT (INTERVAL 136-150 CM);
Leg : 24 Top/Bottom Interval(mm): 550/1500 Analyst:
Hole: 231 Sample Midpoint (m) : 568.00
Core: 62 Top of Core Depth (m) : 566.50
Sect: 1 Top of Section Depth(m): 567.05
LITHOLOGY: SEDIMENT (NANNO CHALK);
BASALT;
VOLCANIC GLASS;
Texture : FRACTURED ZONE IN GLASS AND BRECCIATED GLASS
(INTERVAL 65-85 CM), GLASSY RIND OVERLYING
BLACK MASSIVE BASALT AT 140 CM;
Structure : FRACTURED ZONE IN GLASS (INTERVAL 65-85 CM), GLASSY
BRECCIA CEMENTED BY TEMPERED METAMORPHOSED SEDIMENTS
LODGED IN CRACKS (INTERVAL 95-125 CM), BLACK MASSIVE
BASALT (INTERVAL 140-150 CM);
Comments : LAYERED SEDIMENTS THEN BAKED ZONE IN SEDIMENTS WITH
PYRITE (INTERVAL 55-65 CM), CONTACT AT 65 CM,
FRACTURED AND BRECCIATED ZONE OF GLASS (INTERVAL 65-
85 CM), TEMPERED UPPER MARGIN IN SEDIMENTS (INTERVAL
(70-85 CM), SLIGHTLY METAMORPHOSED SEDIMENT
INCLUSIONS WITHOUT LAYERING (INTERVAL 85-105 CM),
GLASSY BRECCCIA CEMENTED BY TEMPERED METAMORPHOSED
SEDIMENTS LODGED IN CRACKS (95-125 CM), FRACTURED
GLASS (INTERVAL 110-125 CM), SLIGHTLY METAMORPHOSED
SEDIMENT INCLUSION (INTERVAL 125-129 CM),
TEMPERED ZONE IN SEDIMENTS (INTERVAL 129-140 CM),
GLASSY RIND OVERLYING BLACK MASSIVE BASALT (INTERVAL
140-150 CM), THIS INFORMATION IS TAKEN FROM THE
DETAILED CORE DESCRIPTIONS FOUND IN THE INITIAL
REPORTS, FOR FURTHER INFORMATION SEE THE
PRELIMINARY PETROGRAPHIC DESCRIPTION IN THE SITE 231
CHAPTER OF THE INITIAL REPORTS;
Replacement: PYRITE
Leg : 24 Top/Bottom Interval(mm): 0/ 100 Analyst:
Hole: 231 Sample Midpoint (m) : 568.10
Core: 62 Top of Core Depth (m) : 566.50
Sect: CC Top of Section Depth(m): 568.10
LITHOLOGY: BASALT;
Structure : BLACK MASSIVE VESICULAR BASALT, MYLONITIZED ZONE;
Comments : THIS INFORMATION IS FROM THE DETAILED CORE
DESCRIPTIONS LOCATED IN THE INITIAL REPORTS, FOR
FURTHER INFORMATION SEE THE PRELIMINARY
PETROGRAPHIC DESCRIPTIONS IN THE SITE 231 CHAPTER
OF THE INITIAL REPORTS;
Vesicles : BLACK MASSIVE VESICULAR BASALT;
Leg : 24 Top/Bottom Interval(mm): 820/1500 Analyst:
Hole: 231 Sample Midpoint (m) : 570.00
Core: 63 Top of Core Depth (m) : 568.50
Sect: 1 Top of Section Depth(m): 569.32
LITHOLOGY: DOLERITIC BASALT;
Structure : BLACK MASSIVE VESICULAR DOLERITIC BASALT WITH MINOR
FRACTURING AND OXIDATION ALONG FRACTURES, THIN
VERTICAL VEIN INCRUSTED WITH FINE GRAINED AGGREGATES
OF TALC + SERICITE + CHLORITE AND AN OXIDIZED ZONE
BORDERING VEIN;
Alteration : SLIGHTLY ALTERED;
Comments : THIS INFORMATION IS FROM THE DETAILED CORE
DESCRIPTIONS OF THE INITIAL REPORTS, FOR FURTHER
INFORMATION SEE THE PRELIMINARY PETROGRAPHIC
DESCRIPTIONS IN THE SITE 231 CHAPTER OF THE INITIAL
REPORTS;
Vesicles : BLACK MASSIVE VESICULAR BASALT;
Leg : 24 Top/Bottom Interval(mm): 820/1500 Analyst: Kinsman, D.J.J.
Hole: 231 Sample Midpoint (m) : 571.50
Core: 63 Top of Core Depth (m) : 568.50
Sect: 2 Top of Section Depth(m): 570.82
LITHOLOGY: BASALT;
Structure : BROWNISH GRAY (5 YR 6/1) VEIN (INTERVAL 132-150 CM);
Comments : BLACK VESICULAR BASALT (INTERVAL 0-24 CM), BLACK
VOLCANIC GLASS (INTERVAL 24-34 CM), BLACK
VESICULAR BASALT (INTERVAL 34-119 CM), BLACK
VOLCANIC GLASS (119-132 CM), BLACK VESICULAR
BASALT (INTERVAL 132-150), QUESTIONABLE FLOW UNIT
(SEE INTERVAL 20-120 CM), FOR MORE INFORMATION SEE
CORE FORM AND LITHOLOGIC DESCRIPTION IN THE INITIAL
REPORTS;
Vesicles : BLACK VESICULAR BASALT IN INTERVALS (0-24 CM) +
(34-119 CM)+ (132-150 CM);
Leg : 24 Top/Bottom Interval(mm): 0/1500 Analyst:
Hole: 231 Sample Midpoint (m) : 571.50
Core: 63 Top of Core Depth (m) : 568.50
Sect: 2 Top of Section Depth(m): 570.00
LITHOLOGY: BASALT;
Texture : FRAGMENTED GLASS (INTERVAL 20-40 CM), GLASSY BRECCIA
(INTERVAL 115-150 CM);
Structure : MASSIVE BLACK BASALT AND SLIGHTLY FRACTURED WITH
NARROW ZONES OF OXIDATION AROUND TINY VEINS AND
FRACTURES (INTERVAL 0-20 CM), CHLORITE - SERICITE -
TALC - ARAGONITE VEINS WITH THICKNESS FROM 1.0 MM
TO 1.5 CM IN VARIOLITIC VESICULAR BASALT (SEE
INTERVAL 60-150 CM);
Comments : THIS INFORMATION IS FROM THE DETAILED CORE
DESCRIPTIONS FROM THE INITIAL REPORTS, FOR FURTHER
INFORMATION SEE THE PRELIMINARY PETROGRAPHIC
DESCRIPTIONS IN THE SITE 231 CHAPTER OF THE INITIAL
REPORTS;
Vesicles : VARIOLITIC VESICULAR BASALT (SEE INTERVAL 20-40
CM);
Replacement: CHLORITE
TALC
ARAGONITE
SERICITE
Leg : 24 Top/Bottom Interval(mm): 0/ 0 Analyst:
Hole: 231 Sample Midpoint (m) : 571.60
Core: 63 Top of Core Depth (m) : 568.50
Sect: CC Top of Section Depth(m): 571.60
LITHOLOGY: BASALT;
Structure : BLACK VESICULAR BASALT WITH VEIN OF TALC - SERICITE
- CHLORITE AND NARROW ZONE OF OXIDATION AROUND
VEIN;
Comments : THIS INFORMATION IS FROM THE DETAILED CORE
DESCRIPTIONS OF THE INITIAL REPORTS, FOR FUTHER
INFORMATION SEE THE PRELIMINARY PETROGRAPHIC
DESCRIPTIONS IN THE SITE 231 CHAPTER OF THE INITIAL
REPORTS;
Vesicles : BLACK VESICULAR BASALT;
Replacement: CHLORITE
TALC
SERICITE
VEIN OF TALC + CHLOR + SERICITE;
Leg : 24 Top/Bottom Interval(mm): 0/1500 Analyst:
Hole: 231 Sample Midpoint (m) : 576.00
Core: 64 Top of Core Depth (m) : 574.50
Sect: 1 Top of Section Depth(m): 574.50
LITHOLOGY: BASALT;
Structure : BLACK MASSIVE BASALT (INTERVAL 0-10 CM), FRAGMENTED
VOLCANIC GLASS WITH THIN VEINS OF ARAGONITE
(INTERVAL 10-45 CM), MASSIVE BASALT THAT IS
SLIGHTLY FRACTURED (INTERVAL 35-60 CM), VEIN OF
ARAGONITE + CHLORITE + SERICITE (INTERVAL 60-90 CM),
MASSIVE BASALT (INTERVAL 65-150 CM), FRACTURED
ZONE OF GLASS AND GLASSY BRECCIA IMPREGNATED WITH
ARAGONITE + SERCITE + CHLORITIC MATERIAL IN
IRREGULAR VEINS (INTERVAL 90-145 CM);
Comments : THIS INFORMATION IS FROM THE DETAILED CORE
DESCRIPTIONS IN THE INITIAL REPORTS, FOR FURTHER
INFORMATION SEE THE PRELIMINARY PETROGRAPHIC
DESCRIPTIONS IN THE SITE 231 CHAPTER OF THE INITIAL
REPORTS;
Vesicles : MASSIVE VESICULAR BASALT (SEE INTERVAL 120-150
CM);
Replacement: CHLORITE
TALC
SERICITE
ARAGONITE
Leg : 24 Top/Bottom Interval(mm): 0/1500 Analyst:
Hole: 231 Sample Midpoint (m) : 577.50
Core: 64 Top of Core Depth (m) : 574.50
Sect: 2 Top of Section Depth(m): 576.00
LITHOLOGY: BASALT;
Texture : VARIOLITIC BASALT (SEE INTERVAL 55-110 CM);
Structure : MASSIVE BASALT AND SLIGHTLY FRACTURED AND ALTERED
(INTERVAL 0-55 CM), CHLORITE + SERICITE +
QUESTIONABLE QUARTZ VEINS ALONG SMALL FRACTURES
(SEE INTERVAL 5-25 CM), MASSIVE VARIOLITIC BASALT
THAT IS SLIGHTLY FRACTURED AND ALTERED (INTERVAL 55-
110 CM), BRECCIATED GLASS AND VEINS (INTERVAL 55-110
CM), FRACTURED ZONE WITH UPPER PART FRAGMENTED GLASS
AND LOWER PART TALC + CALCITE + SERICITE VEIN AS
FINE GRAINED AGGREGATES (INTERVAL 50-120 CM),
BRECCIATED VOLCANIC GLASS IMPREGNATED WITH CHLORITE
- SERICITE - TALC AGGREGATES CEMENTED TO VEIN OF
SUCH MATERIAL (INTERVAL 120-150 CM);
Alteration : SLIGHTLY FRACTURED AND ALTERED;
Comments : DOLERITIC BASALT (SEE INTERVAL 120-150 CM), THIS
INFORMATION IS FROM THE DETAILED CORE DESCRIPTIONS
IN THE INITIAL REPORTS, FOR FURTHER INFORMATION
SEE THE PRELIMINARY PETROGRAPHIC DESCRIPTIONS
IN THE SITE 231 CHAPTER OF THE INITIAL REPORTS;
Replacement: CHLORITE
TALC
SERICITE
Leg : 24 Top/Bottom Interval(mm): 0/1500 Analyst:
Hole: 231 Sample Midpoint (m) : 579.00
Core: 64 Top of Core Depth (m) : 574.50
Sect: 3 Top of Section Depth(m): 577.50
LITHOLOGY: BASALT;
Structure : FRAGMENTS OF VEINS OF TALC - CHLORITE - SERICITE
(INTERVAL 0-6 CM), FRAGMENTED GLASS ALONG FRACTURE
ZONE (INTERVAL 0-20 CM), VEINS OF CHLORITE +
SERICITE + TALC MIXTURE (INTERVAL 14-22 CM),
MASSIVE VESICULAR BASALT (INTERVAL 20-45 CM),
VEIN OF CHLORITE - SERICITE - TALC MATERIAL
(INTERVAL 45-54 CM), FRACTURE ZONE WITH BASALT
FRAGMENTS BONDED BY CHLORITE - SERICITE - TALC
VEIN MATERIAL (INTERVAL 60-80 CM), FRACTURE ZONE
IN BASALT WITH UPPER PART BRECCIATED MORE THAN
LOWER PART + ZONE CONTAINS THIN VEINS OF CHLORITE -
SERICITE - TALC (INTERVAL 80-115 CM);
Comments : THIS INFORMATION ON CORE 64 IS FROM THE DETAILED
CORE DESCRIPTIONS IN THE INITIAL REPORTS, FOR
FURTHER INFORMATION SEE THE PRELIMINARY
PETROGRAPHIC DESCRIPTIONS IN THE SITE 231 CHAPTER
OF THE INITIAL REPORTS;
Vesicles : VESICULAR BASALT;
Replacement: CHLORITE
TALC
SERICITE
Leg : 24 Top/Bottom Interval(mm): 0/ 0 Analyst:
Hole: 231 Sample Midpoint (m) : 579.10
Core: 64 Top of Core Depth (m) : 574.50
Sect: CC Top of Section Depth(m): 579.10
LITHOLOGY: BASALT;
Structure : MASSIVE VESICULAR BASALT + SLIGHTLY ALTERED AND
FRACTURED, SOME BRECCIATED GLASS IMPREGNATED WITH
TALC + CHLORITE + SERICITE VEIN MATERIAL WHICH
OCCURS IN THE FRACTURES;
Alteration : SLIGHTLY ALTERED;
Comments : THIS INFORMATION IS FROM THE DETAILED CORE
DESCRIPTIONS IN THE INITIAL REPORTS, FOR FURTHER
INFORMATION SEE THE PRELIMINARY PETROGRAPHIC
DESCRIPTIONS IN THE SITE 231 CHAPTER OF THE INITIAL
REPORTS;
Vesicles : MASSIVE VESICULAR BASALT;
Replacement: CHLORITE
TALC
SERICITE
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