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Kvenvolden, Keith A; McDonald, Thomas J (1989): Organic geochemistry of ODP Leg 104 holes [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.736455, Supplement to: Kvenvolden, KA; McDonald, TJ (1989): Organic geochemistry on Leg 104. In: Eldholm, O; Thiede, J; Taylor, E; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 104, 291-307, https://doi.org/10.2973/odp.proc.sr.104.126.1989

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Abstract:
The Leg 104 organic geochemistry program consisted of monitoring (a) hydrocarbon gases, (b) organic and inorganic carbon, and (c) parameters resulting from Rock-Eval pyrolysis at three sites on the Voring Plateau. The results amplify some of those obtained earlier on Deep Sea Drilling Project (DSDP) Leg 38. In a regional sense there is an inverse correlation between amounts of hydrocarbon gas and organic carbon. For example, significant concentrations of methane are present only at Site 644 in the inner part of the plateau where organic carbon contents are always less than 1%; in contrast, at Site 642 on the outer plateau, methane concentrations are very low (ppm range) whereas amounts of organic carbon approach 2%. Only at Site 644 are the environmental conditions such that methanogenesis is an active diagenetic process. Because of the importance of routine gas analyses to the Ocean Drilling Program (ODP), a procedure was devised to improve the use of Vacutainers for collection of gas samples.
Comparison of methods for determining organic carbon showed that at Sites 643 and 644 Rock-Eval TOC could be used as a measure of organic carbon, but not at Site 642. Although no liquid or solid hydrocarbons were encountered at any of the sites, a catalog of potential organic geochemical contaminants was developed in anticipation of such a discovery.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 67.207586 * Median Longitude: 2.858255 * South-bound Latitude: 66.678300 * West-bound Longitude: 1.033300 * North-bound Latitude: 67.715000 * East-bound Longitude: 4.576700
Date/Time Start: 1985-06-28T00:00:00 * Date/Time End: 1985-08-09T10:15:00
Event(s):
104-642 * Latitude: 67.222000 * Longitude: 2.929317 * Date/Time Start: 1985-06-28T00:00:00 * Date/Time End: 1985-08-01T00:00:00 * Elevation: -1292.2 m * Penetration: 1990.8 m * Recovery: 906.8 m * Location: Norwegian Sea * Campaign: Leg104 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 177 cores; 1477.1 m cored; 0 m drilled; 61.4% recovery
104-642B * Latitude: 67.225000 * Longitude: 2.928300 * Date/Time Start: 1985-06-28T14:40:00 * Date/Time End: 1985-06-29T20:15:00 * Elevation: -1294.0 m * Penetration: 221.1 m * Recovery: 214.61 m * Location: Norwegian Sea * Campaign: Leg104 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 25 cores; 221.1 m cored; 0 m drilled; 97.1 % recovery
104-643A * Latitude: 67.715000 * Longitude: 1.033300 * Date/Time Start: 1985-08-03T06:07:00 * Date/Time End: 1985-08-08T01:45:00 * Elevation: -2780.0 m * Penetration: 565.2 m * Recovery: 458.29 m * Location: Norwegian Sea * Campaign: Leg104 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 62 cores; 565.2 m cored; 0 m drilled; 81.1 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
7 datasets

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Datasets listed in this publication series

  1. Kvenvolden, KA; McDonald, TJ (1989): (Table 2) Methane concentrations at ODP Site 104-642. https://doi.org/10.1594/PANGAEA.736445
  2. Kvenvolden, KA; McDonald, TJ (1989): (Table 3) Comparison of organic carbon and TOC in ODP Site 104-642. https://doi.org/10.1594/PANGAEA.736449
  3. Kvenvolden, KA; McDonald, TJ (1989): (Table 4) Comparison of organic carbon determined by difference and by direct measurement of acidified samples of ODP Site 104-642. https://doi.org/10.1594/PANGAEA.736454
  4. Kvenvolden, KA; McDonald, TJ (1989): (Table 2) Methane concentrations at ODP Hole 104-643A. https://doi.org/10.1594/PANGAEA.736446
  5. Kvenvolden, KA; McDonald, TJ (1989): (Table 3) Comparison of organic carbon and TOC in ODP Hole 104-643A. https://doi.org/10.1594/PANGAEA.736450
  6. Kvenvolden, KA; McDonald, TJ (1989): (Table 2) Methane concentrations at ODP Hole 104-644A. https://doi.org/10.1594/PANGAEA.736448
  7. Kvenvolden, KA; McDonald, TJ (1989): (Table 3) Comparison of organic carbon and TOC in ODP Hole 104-644A. https://doi.org/10.1594/PANGAEA.736451