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Galimov, Erik M; Simoneit, Bernd R T (1982): Geochemistry of interstitial gases in sedimentary deposits at DSDP Leg 64 Holes [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.818771, Supplement to: Galimov, EM; Simoneit, BRT (1982): Geochemistry of interstitial gases in sedimentary deposits of the Gulf of California, Deep Sea Drilling Project Leg 64. In: Curray, JR; Moore, DG; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 64, 781-787, https://doi.org/10.2973/dsdp.proc.64.124.1982

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Abstract:
We analyzed interstitial gases from holes at Sites 474, 477, 478, 479, and 481 in the Gulf of California, using gas chromatography and stable isotope mass spectrometry to evaluate their composition in terms of biogenic and thermogenic sources. The hydrocarbon gas (C1-C5) concentrations were comparable to the shipboard data, and no olefins could be detected. The δ13C data for the CH4 confirmed the effects of thermal stress on the sedimentary organic matter, because the values were typically biogenic near the surface and became more depleted in 12C versus depth in holes at Sites 474, 478, and 481. The CH4 at Site 477 was the heaviest, and in Hole 479 it did not show a dominant hightemperature component. The CO2 at depth in most holes was mostly thermogenic and derived from carbonates. The low concentrations of C2-C5 hydrocarbons in the headspace gas of canned sediments precluded a stable carbon-isotope analysis of their genetic origin.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 26.226170 * Median Longitude: -110.797477 * South-bound Latitude: 22.959300 * West-bound Longitude: -111.655700 * North-bound Latitude: 27.901700 * East-bound Longitude: -108.978000
Date/Time Start: 1978-12-02T00:00:00 * Date/Time End: 1979-01-03T00:00:00
Event(s):
64-474 * Latitude: 22.962000 * Longitude: -108.980700 * Date/Time: 1978-12-02T00:00:00 * Elevation: -3023.0 m * Penetration: 182.5 m * Recovery: 77.2 m * Location: North Pacific/Gulf of California/BASIN * Campaign: Leg64 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 19 cores; 173 m cored; 9.5 m drilled; 44.6 % recovery
64-474A * Latitude: 22.959300 * Longitude: -108.978000 * Date/Time: 1978-12-02T00:00:00 * Elevation: -3022.0 m * Penetration: 626 m * Recovery: 290.1 m * Location: North Pacific/Gulf of California/BASIN * Campaign: Leg64 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 49 cores; 453 m cored; 9.5 m drilled; 64 % recovery
64-477 * Latitude: 27.030800 * Longitude: -111.400300 * Date/Time: 1978-12-18T00:00:00 * Elevation: -2003.0 m * Penetration: 191 m * Recovery: 50.6 m * Location: North Pacific/Gulf of California/BASIN * Campaign: Leg64 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 21 cores; 172 m cored; 19 m drilled; 29.4 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
3 datasets

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Datasets listed in this publication series

  1. Galimov, EM; Simoneit, BRT (1982): (Table 3) Headspace chemistry of canned sediment samples from DSDP Leg 64 Holes. https://doi.org/10.1594/PANGAEA.818770
  2. Galimov, EM; Simoneit, BRT (1982): (Table 2) Carbon isotope composition of CH4 and CO2 at DSDP Leg 64 Holes. https://doi.org/10.1594/PANGAEA.818769
  3. Galimov, EM; Simoneit, BRT (1982): (Table 1) Hydrocarbons (C1-C5) and carbon dioxide in interstitial gas at DSDP Leg 64 Holes. https://doi.org/10.1594/PANGAEA.818768