Leg : 60 Top/Bottom Interval(mm): / Analyst: Nakamura, K. Hole: 460A Sample Midpoint (m) : 57.69 Core: 7 Top of Core Depth (m) : 55.50 Sect: CC Top of Section Depth(m): 57.69 LITHOLOGY: SEDIMENT; INCLUSION OF BASALT COBBLE; Piece No. : PCE NO PCE NUMBERS ASSIGNED; Texture : VITRIC SEMILITHIFIED MUDSTONE WITH INCLUSION OF VESICULAR BASALT FRAGMENT AT 144-150CM; Comments : CC STORED IN SECTION 2 LINER; Leg : 60 Top/Bottom Interval(mm): 0/ 390 Analyst: Fryer, P. Hole: 460A Sample Midpoint (m) : 65.39 Core: 8 Top of Core Depth (m) : 65.00 Sect: CC Top of Section Depth(m): 65.10 LITHOLOGY: APHYRIC BASALT; CONGLOMERATE; Piece No. : PCE 1 (0-4), 2 (5-6), 3 (10-13), 4 (21-25), 5 (34-39); Texture : APHYRIC BASALT FRAGMENTS WHICH ARE ROUNDED, FINE GRAINED MATRIX, PCE 5 IS A FINE GRAINED LESS ALTERED BASALT WHICH MAY BE AN EXTREMELY ALTERED GLASS; Alteration : EXT; Comments : SURFACES OF BASALT FRAGMENTS ARE COATED WITH A THIN VENEER OF REDDISH YELLOW (7.5YR7/8), MATRIX IS (2.5Y3/2) WITH STREAKS AND PATCHES OF MATERIAL THAT VARIES FROM GREENISH SHADES (5Y4/3) TO ORANGE SHADES (5YR5/8), PCE 5 IS GENERALLY BLACK (5Y2.5/1) WITH DARK GREENISH BLACK RIMS (5GY2/1); Vesicles : VESICULAR; Leg : 60 Top/Bottom Interval(mm): 0/ 210 Analyst: Natland, J. Hole: 460A Sample Midpoint (m) : 74.71 Core: 9 Top of Core Depth (m) : 74.50 Sect: CC Top of Section Depth(m): 74.60 LITHOLOGY: APHYRIC BASALT; Piece No. : PCE 1 (4-6), 2 (8-11), 3 (14-21); Texture : APHYRIC, ALTERED PARTIAL RINDS; Alteration : FRESH; SLIGHTLY ALTERED PARTIAL RINDS IN PCES 2-3 WHICH ARE STAINED SLIGHTLY TO BROWNISH GREY; Comments : RINDS ARE BROWNISH GREY, BASALT IS DARK GREY; Leg : 60 Top/Bottom Interval(mm): 0/ 340 Analyst: Fryer, P. Hole: 460A Sample Midpoint (m) : 84.34 Core: 10 Top of Core Depth (m) : 84.00 Sect: CC Top of Section Depth(m): 84.10 LITHOLOGY: BASALT COBBLE INCLUSIONS; SEDIMENT; Piece No. : PCE 1 (26-27), 2 (26-27); Texture : SILTSTONE RUBBLE NOT GRADED TO LARGER PEBBLES (4-2.5MM) IN LOWER PORTION OF SECTION, PCE 1 IS QUITE FRESH VESICULAR APHYRIC BASALT; Structure : PCE 2 CONTAINS NUMEROUS FINE VEINS WHICH ARE FILLED WITH GREEN CLAYS AND SOME SULFIDE MINERAL; Alteration : EXT PCE 2; FRESH PCE 1 IS QUITE FRESH; Comments : PCE 2 IS GREENISH IN COLOR; Vesicles : PCE 1 IS 20% VESICULAR; Replacement: SULFIDE CLAY MINERALS CLAYS ARE GREEN AND IN VEINS AND BOTH ARE IN PCE 2; Leg : 60 Top/Bottom Interval(mm): 0/ 460 Analyst: Natland, J. Hole: 460A Sample Midpoint (m) : 93.96 Core: 11 Top of Core Depth (m) : 93.50 Sect: 1 Top of Section Depth(m): 93.50 LITHOLOGY: APHYRIC BASALT; Piece No. : PCE 1 (3-5), 2 (6-13), 3 (15-17), 4 (19-22), 5 (25-26), 6 (28-32), 7 (34-36), 8 (40-46); Texture : APHYRIC, GLASSY TO FINE GRAINED, PCE 1 HAS VITREOUS BLACK GLASS "NUGGETS" IN OR NEAR VESICLES SET IN A DULLER PROBABLY SPHERULITIC MATRIX, PCES 3-4 ARE NEARLY GLASSY BUT HAVE NO VITREOUS GLASS; Alteration : FRESH; Comments : PCES 3-4 ARE VERY DARK GREY; Vesicles : Size(mm): <1 Percent: 5 PCE 1, LINED WITH WHITE CLAYS AND HAVE ASSOCIATED MINOR PALAG, PCES 3-4 ARE MORE VESICULAR THAN ANY OF THE OTHERS, PCES 5-8 HAVE MINOR GREEN CLAYS AROUND VESICLES USING THE BINOCULAR SCOPE; Replacement: PALAGONITE CLAY MINERALS WHITE LINING VESICLES, MINOR GREEN AROUND SOME VESICLES; PCES 5-8 HAVE A WHITE SECONDARY MINERAL (MAY BE CLAYS) COATING EXTERIOR SURFACES; |
Cite as: Deep Sea Drilling Project (1989): Archive of Core and Site/Hole Data and Photographs from the Deep Sea Drilling Project (DSDP). National Geophysical Data Center, NOAA. doi:10.7289/V54M92G2 [access date]
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