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Mukhopadhyay, Prasanta K; Rullkötter, Jürgen; Welte, Dietrich Hugo (1983): Total organic carbon content and maceral composition of sediment at DSDP Holes 72-515B and 72-516F [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.811748, Supplement to: Mukhopadhyay, PK et al. (1983): Facies and diagenesis of organic matter in sediments from the Brazil Basin and the Rio Grande Rise, Deep Sea Drilling Project Leg 72. In: Barker, PF; Carlson, RL; Johnson, DA; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 72, 821-828, https://doi.org/10.2973/dsdp.proc.72.138.1983

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Abstract:
The amount, type, and thermal maturation of organic matter in sediments from two DSDP holes in the South Atlantic (Leg 72) were investigated. Isolated kerogens were studied by microscopy, and nonaromatic hydrocarbons were characterized by capillary gas chromatography.
Organic carbon values are low in all samples and range between 0.05 and 0.21% in Hole 515B (Brazil Basin) and only between 0.02 and 0.10% in Hole 516F (Rio Grande Rise). The organic matter is predominantly terrigenous, mixed with some unicellular marine algae; it is severely oxidized in most samples. N-alkane distributions are usually dominated by long-chain wax alkanes with odd-over-even carbon number predominance; when the marine organic matter is relatively more abundant, however, significant amounts of n-alkanes are centered upon n-C17. The organic matter is not mature enough in any sample to generate appreciable amounts of hydrocarbons.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: -28.257600 * Median Longitude: -35.894100 * South-bound Latitude: -30.276500 * West-bound Longitude: -36.503200 * North-bound Latitude: -26.238700 * East-bound Longitude: -35.285000
Date/Time Start: 1980-03-01T00:00:00 * Date/Time End: 1980-03-11T00:00:00
Event(s):
72-515B * Latitude: -26.238700 * Longitude: -36.503200 * Date/Time: 1980-03-01T00:00:00 * Elevation: -4252.0 m * Penetration: 636.4 m * Recovery: 428.6 m * Location: South Atlantic/BASIN * Campaign: Leg72 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 57 cores; 541.4 m cored; 94.9 m drilled; 79.2 % recovery
72-516F * Latitude: -30.276500 * Longitude: -35.285000 * Date/Time: 1980-03-11T00:00:00 * Elevation: -1313.0 m * Penetration: 1270.6 m * Recovery: 690.1 m * Location: South Atlantic/CONT RISE * Campaign: Leg72 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 127 cores; 1092.5 m cored; 9 m drilled; 63.2 % 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. Mukhopadhyay, PK; Rullkötter, J; Welte, DH (1983): (Table 1) Total organic carbon content and maceral composition of sediment at DSDP Hole 72-515B. https://doi.org/10.1594/PANGAEA.811746
  2. Mukhopadhyay, PK; Rullkötter, J; Welte, DH (1983): (Table 2) Total organic carbon content and maceral composition of sediment at DSDP Hole 72-516F. https://doi.org/10.1594/PANGAEA.811747