Schorno, Karl S (1981): Geochemistry of carbon at DSDP Legs 58 and 59 Holes [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.820997, Supplement to: Schorno, KS (1981): Geochemistry of carbon: Deep Sea Drilling Project Legs 58 and 59. In: Kroenke, L; Scott, R; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 59, 641-646, https://doi.org/10.2973/dsdp.proc.59.125.1981
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Abstract:
I obtained 68 quarter sections of cores from the JOIDES Organic Geochemistry Panel for studying type, distribution, and stages of organic diagenesis of sedimentary organic matter in the West Philippine and Parece Vela basins and Mariana Trough area (Figure 1). The present chapter compares (1) 11 geochemical parameters used to determine organic source and its stage of genesis within the 9 site locations in this study area and (2) compares these 11 with the same parameters reported from Leg 56, outer trench slope of the Japan Trench, and Leg 60, Mariana Trough and Trench (Schorno, in press a, b). Even though these sediments are considered pelagic, the organic content in most of the core sections appears to be hemipelagic. The sedimentary organic matter in these cores is believed to be in an early stage of diagenesis. Both conclusions are based primarily on the fl-alkane distribution within the organic matter. This particular parameter, I note later, has a major weakness. As Hunt (Hunt, 1979) and I (in press b) observed, marine organisms synthesize /z-alkanes with distributions containing neither odd nor even preferences. Thus those sediments that did contain w-alkane distributions with OEP near 1, suggesting a late stage of catagenesis, may in actuality be immature marine sediments.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 22.413631 * Median Longitude: 136.941535 * South-bound Latitude: 16.341000 * West-bound Longitude: 132.774800 * North-bound Latitude: 29.327500 * East-bound Longitude: 143.276200
Date/Time Start: 1977-12-12T00:00:00 * Date/Time End: 1978-03-07T00:00:00
Event(s):
58-442A * Latitude: 28.983300 * Longitude: 136.057200 * Date/Time: 1977-12-12T00:00:00 * Elevation: -4639.0 m * Penetration: 313.5 m * Recovery: 153.7 m * Location: North Pacific/BASIN * Campaign: Leg58 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 33 cores; 304 m cored; 9.5 m drilled; 50.6 % recovery
58-442B * Latitude: 28.984000 * Longitude: 136.057200 * Date/Time: 1977-12-12T00:00:00 * Elevation: -4634.0 m * Penetration: 455 m * Recovery: 51 m * Location: North Pacific/BASIN * Campaign: Leg58 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 20 cores; 187.5 m cored; 0 m drilled; 27.2 % recovery
58-443 * Latitude: 29.327500 * Longitude: 137.440500 * Date/Time: 1977-12-28T00:00:00 * Elevation: -4372.0 m * Penetration: 581.5 m * Recovery: 300 m * Location: North Pacific/BASIN * Campaign: Leg58 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 64 cores; 581.5 m cored; 0 m drilled; 51.6 % 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
- Schorno, KS (1981): (Table 1) Geochemistry from frozen core sections from DSDP Legs 58 and 59 Holes. https://doi.org/10.1594/PANGAEA.820995
- Schorno, KS (1981): (Table 2) A compilation of the ratio of pristane to phytane and the marine versus terrestrial n-alkane as given by the ratio (n-C21 + n-C22)/(n-C28 + n-C29) at DSDP Legs 58 and 59 Holes. https://doi.org/10.1594/PANGAEA.820996