Leg : 28 Top/Bottom Interval(mm): 0/ 50 Analyst: Ford, A.
Hole: 265 Sample Midpoint (m) : 444.55
Core: 17 Top of Core Depth (m) : 444.50
Sect: 1 Top of Section Depth(m): 444.50
LITHOLOGY: SEDIMENT (NANNO CHALK);
Comments : CONTACT AT 5 CM, ACTUAL CONTACT OF CHALK AND BASALT
NOT PRESERVED - BUT CHALK NOW IMMEDIATELY ABOVE
THE BASALT SHOWS APPARENT EVIDENCE OF CONTACT
METAMORPHISM, WHITE TO VERY LIGHT GREY (N9 -N8);
Leg : 28 Top/Bottom Interval(mm): 50/1500 Analyst: Ford, A.
Hole: 265 Sample Midpoint (m) : 446.00
Core: 17 Top of Core Depth (m) : 444.50
Sect: 1 Top of Section Depth(m): 444.55
LITHOLOGY: BASALT;
Piece No. : PCES 1 (5-16), 2 (17-26), 3 (26-31), 4 (31-36),
5 (36-41), 6 (42-45), 7 (46-49), 10 (61-64),
12 (69-73), 13 (73-76), 14 (76-85), 15 (84-92),
16 (92-96), 17 (96-99), 18 (99-102), 19 (102-106),
20 (106-109), 21 (109-116), 22 (119-124),
23 (124-128), 24 (129-132), 25 (138-142),
26 (142-146), 27 (146-150);
Texture : NUMEROUS FRAGMENTS OF BASALT AND ONE OF A BASALTIC
VOLCANIC CONGLOMERATE, PCES 1-5 AND PCES 6 + 7 + 10
+ 15 ARE DENSE BASALT, PCE 12 AND PCES 16-17 ARE
MOTTLED BASALT, PCE 18 - 27 ARE DENSE BASALT,
SEE CODE V (VESICLES) FOR PIECE BY PIECE
DESCRIPTIONS;
Comments : CONTACT AT 5 CM, NUMEROUS FRAGMENTS OF BASALT AND
ONE OF A BASALTIC VOLCANIC CONGLOMERATE, SEE CORE
FORM AND LITHOLOGIC DESCRIPTION IN THE INITIAL
REPORTS FOR FURTHER INFORMATION;
Vesicles : PCES 1-5 ARE DENSE BASALT WITH VERY FEW VESICLES,
PCES 6-7 AND PCE 10 ARE DENSE VESICULAR BASALT,
PCE 12 IS MOTTLED POORLY VESICULAR BASALT,
PCES 13-14 ARE AMYGDALOIDAL BASALT, PCES 16-17
ARE MOTTLED VESICULAR BASALT, PCES 18-19 ARE
FINELY AMYGDALOIDAL DENSE BASALT, PCES 20-21
ARE DENSE NON-VESICULAR BASALT, PCES 22-27
ARE DENSE VESICULAR AND AMYGDALOIDAL BASALT;
Leg : 28 Top/Bottom Interval(mm): 480/ 690 Analyst: Ford, A.
Hole: 265 Sample Midpoint (m) : 445.19
Core: 17 Top of Core Depth (m) : 444.50
Sect: 1 Top of Section Depth(m): 444.98
LITHOLOGY: BRECCIA;
Piece No. : PCES 8 (48-58), 9 (58-61), 11 (64-68);
Structure : PCE 8 IS POSSIBLY AN INTERFLOW UNIT;
Comments : PCE 8 IS A BASALTIC CONGLOMERATE OR BRECCIA, PCE 9
IS A GLASS BRECCIA WITH A POSSIBLE ARGILLACEOUS
MATRIX, PCE 11 IS A BASALTIC BRECCIA, SEE CORE FORM
AND LITHOLOGIC DESCRIPTION IN THE INITIAL REPORTS
FOR FURTHER INFORMATION;
Leg : 28 Top/Bottom Interval(mm): 0/ 0 Analyst: Ford, A.
Hole: 265 Sample Midpoint (m) : 446.10
Core: 17 Top of Core Depth (m) : 444.50
Sect: CC Top of Section Depth(m): 446.10
LITHOLOGY: BASALT;
Texture : HOLOCRYSTALLINE, AMYGDALOIDAL, PYROXENE BASALT WITH
INTERGRANULAR TEXTURE, PLAG - NORMALLY ZONED;
Comments : PARTLY WEATHERED, SEE CORE FORM AND LITHOLOGIC
DESCRIPTION IN THE INITIAL REPORTS FOR MORE
INFORMATION;
Vesicles :
Location: Filling: CALCITE
VESICULAR AND AMYGDALOIDAL BASALT;
Phenocrysts: PYROXENE
PYROXENE BASALT WITH INTERGRANULAR TEXTURE;
PLAGIOCLASE
PLAG - NORMALLY ZONED;
Replacement: CALCITE
Leg : 28 Top/Bottom Interval(mm): 900/1500 Analyst: Ford, A.
Hole: 265 Sample Midpoint (m) : 454.00
Core: 18 Top of Core Depth (m) : 452.50
Sect: 1 Top of Section Depth(m): 453.40
LITHOLOGY: BASALT;
Piece No. : PCES 1 (90-96), 2 (96-106), 3 (106-114),
4 (114-119), 5 (119-129), 6 (129-137),
7 (138-141), 8 (142-144), 9 (145-150);
Comments : PCES 1-2 HAVE MOTTLED APPEARANCE;
Vesicles : INTERVAL (90-150 CM) BASALT IS VESICULAR TO
AMYGDALOIDAL, PCES 1-2 ARE VESICULAR - PARTLY
AMYGDALOIDAL WITH MOTTLED APPEARANCE, PCES 3-4
ARE SAME AS ABOVE BUT VESICLE FREE, PCES 5-9
ARE VESICULAR TO AMYGDALOIDAL;
Leg : 28 Top/Bottom Interval(mm): 0/1500 Analyst: Ford, A.
Hole: 265 Sample Midpoint (m) : 455.50
Core: 18 Top of Core Depth (m) : 452.50
Sect: 2 Top of Section Depth(m): 454.00
LITHOLOGY: BASALT;
Piece No. : PCES 1 (0-9), 2 (9-12), 3 (12-20), 4 (20-23),
5 (24-26), 6 (26-30), 7 (30-34), 8 (34-37),
9 (38-42), 10 (43-55), 11 (55-61), 12 (62-69),
13 (69-72), 14 (73-76), 15 (76-81), 16 (81-86),
17 (86-96), 18 (97-106), 19 (105-116),
20 (116-130), 21 (130-133), 22 (133-136),
23 (136-141), 24 (142-146), 25 (147-150);
Texture : TEXTURE THROUGHOUT SEEMS FAIRLY EVEN GRAINED
PROBABLY HOLOCRYSTALLINE AND APHYRIC,
DENSE;
Vesicles : Size(mm): 1-5 Percent:
PARTLY VESICULAR + AMYGDALOIDAL AND DENSE,
AMYGDULES GENERALLY ARE 1-5 MM RANGING UP TO
ABOUT 1 CM;
Leg : 28 Top/Bottom Interval(mm): 0/ 0 Analyst: Ford, A.
Hole: 265 Sample Midpoint (m) : 455.60
Core: 18 Top of Core Depth (m) : 452.50
Sect: CC Top of Section Depth(m): 455.60
LITHOLOGY: BASALT;
Texture : DENSE, APHYRIC;
Comments : SEE CORE FORM AND LITHOLOGIC REPORT IN THE INITIAL
REPORTS FOR ADDITIONAL INFORMATION;
Vesicles : SLIGHTLY VESICULAR TO AMYGDALOIDAL BASALT;
|
