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Schorno, Karl S (1980): Geochemistry of carbon at DSDP Legs 56-57 Holes [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.823103, Supplement to: Schorno, KS (1980): Geochemistry of carbon: Legs 56 and 57, Deep Sea Drilling Project. In: Scientific Party, Initial Reports of the Deep Sea Drilling Project, 56/57 (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 56-57, 1319-1325, https://doi.org/10.2973/dsdp.proc.5657.165.1980

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Abstract:
Forty-three core sections from Sites 434, 435, 438, 439, and 440 on the landward side and six core sections from Site 436 on the seaward side of the Japan Trench were obtained through the JOIDES Organic Geochemistry Advisory Panel for study of the origin and state of genesis of the organic matter associated with these continental slope, accretionary wedge, and outer trench slope sediments of the Japan Trench. The lipid fraction of these sediments is derived primarily from terrigenous organic matter and thus is allochthonous to the area. The associated kerogen fraction is of mixed allochthonous and autochthonous origin. The total organic carbon content seaward of the trench is less than that on the landward side. The composition of this organic matter is similar but not identical to that found in the landward side sediments. The organic matter within these sediments is in a diagenetic state in which geopolymerization of biogenic organic matter is nearly complete, but microbial alteration is still occurring.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 40.201465 * Median Longitude: 143.935953 * South-bound Latitude: 39.734800 * West-bound Longitude: 143.231700 * North-bound Latitude: 40.630000 * East-bound Longitude: 145.557800
Date/Time Start: 1977-09-12T00:00:00 * Date/Time End: 1977-11-10T00:00:00
Event(s):
56-434 * Latitude: 39.746000 * Longitude: 144.102000 * Date/Time: 1977-09-12T00:00:00 * Elevation: -5986.0 m * Penetration: 301 m * Recovery: 54.2 m * Location: North Pacific/TRENCH * Campaign: Leg56 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 33 cores; 301 m cored; 0 m drilled; 18 % recovery
56-434B * Latitude: 39.747800 * Longitude: 144.101300 * Date/Time: 1977-09-12T00:00:00 * Elevation: -5986.0 m * Penetration: 637.5 m * Recovery: 63.2 m * Location: North Pacific/TRENCH * Campaign: Leg56 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 32 cores; 295.5 m cored; 47.5 m drilled; 21.4 % recovery
56-435 * Latitude: 39.734800 * Longitude: 143.792200 * Date/Time: 1977-09-18T00:00:00 * Elevation: -3401.0 m * Penetration: 150.5 m * Recovery: 78.4 m * Location: North Pacific/TRENCH * Campaign: Leg56 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 15 cores; 141 m cored; 9.5 m drilled; 55.6 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets

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Datasets listed in this publication series

  1. Schorno, KS (1980): (Table 1) Geochemistry, chronostratigraphy, depth, carbonate and organic carbon, carbon isotopic composition, and OEP values at DSDP Legs 56-57 Holes. https://doi.org/10.1594/PANGAEA.823100
  2. Schorno, KS (1980): (Table 2) Pristane/phytane and (n-C21 + n-C22)/(n-C28 + n-C29) ratios at DSDP Legs 56-57 Holes. https://doi.org/10.1594/PANGAEA.823102