Schoell, Martin (1982): (Table 1) Isotopes on interstitial gases at DSDP Leg 64 Holes [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.818918, Supplement to: Schoell, M (1982): Stable isotopic analyses of interstitial gases in Quaternary sediments from the Gulf of California. In: Curray, JR; Moore, DG; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 64, 815-817, https://doi.org/10.2973/dsdp.proc.64.126.1982
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Published: 1982 (exact date unknown) • DOI registered: 2013-09-27
Abstract:
The origin of the interstitial gases of Hole 479 is bacterial. This is indicated by a positive correlation of the 13C concentration in interstitial methane and CO2 in the shallower depths of the hole. Below a depth of 100 meters, the interstitial CO2 becomes increasingly depleted in carbon-13, which indicates a higher rate of CO2-producing decarboxylation reactions rather than a consumption of CO2 for methane production. Alternatively, dolomite formation could account for an increasing depletion of the interstitial CO2. The interstitial gases in Holes 481 and 481A strongly reflect the thermal influence of the dolerite sill. Above the sill, carbon-13 values of -52% and C2/C1 ratios of 10**-2 indicate thermogenically formed hydrocarbon gases. Below the sill, less thermogenic gas formation suggests that convective, rather than conductive, heat transport operated after the sill intruded the wet sediments.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 27.450667 * Median Longitude: -111.546733 * South-bound Latitude: 27.253000 * West-bound Longitude: -111.624800 * North-bound Latitude: 27.846000 * East-bound Longitude: -111.507700
Date/Time Start: 1978-12-29T00:00:00 * Date/Time End: 1979-01-03T00:00:00
Minimum DEPTH, sediment/rock: 12.5 m * Maximum DEPTH, sediment/rock: 435.0 m
Event(s):
64-479 * Latitude: 27.846000 * Longitude: -111.624800 * Date/Time: 1978-12-29T00:00:00 * Elevation: -747.0 m * Penetration: 440 m * Recovery: 262.7 m * Location: North Pacific/Gulf of California/BASIN * Campaign: Leg64 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 40 cores; 373 m cored; 47.5 m drilled; 70.4 % recovery
64-481 * Latitude: 27.253000 * Longitude: -111.507700 * Date/Time: 1979-01-03T00:00:00 * Elevation: -1998.0 m * Penetration: 52.3 m * Recovery: 33.2 m * Location: North Pacific/Gulf of California/BASIN * Campaign: Leg64 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 10 cores; 48 m cored; 4.8 m drilled; 69.2 % recovery
64-481A * Latitude: 27.253000 * Longitude: -111.507700 * Date/Time: 1979-01-03T00:00:00 * Elevation: -1998.0 m * Penetration: 374.5 m * Recovery: 159 m * Location: North Pacific/Gulf of California/BASIN * Campaign: Leg64 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 31 cores; 293.5 m cored; 39 m drilled; 54.2 % recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Latitude of event | Latitude | ||||
| 3 | Longitude of event | Longitude | ||||
| 4 | Elevation of event | Elevation | m | |||
| 5 | Sample code/label | Sample label | Schoell, Martin | DSDP/ODP/IODP sample designation | ||
| 6 | DEPTH, sediment/rock | Depth sed | m | Geocode – mbsf | ||
| 7 | Methane | CH4 | % | Schoell, Martin | Gas chromatography | |
| 8 | Ethane | C2H6 | % | Schoell, Martin | Gas chromatography | |
| 9 | Propane | C3H8 | % | Schoell, Martin | Gas chromatography | |
| 10 | Ethane/methane ratio | C2/C1 | Schoell, Martin | Gas chromatography | ||
| 11 | δ13C, methane | δ13C CH4 | ‰ PDB | Schoell, Martin | Gas chromatography | |
| 12 | δ Deuterium, methane | δD CH4 | ‰ SMOW | Schoell, Martin | Gas chromatography | |
| 13 | δ13C, carbon dioxide, atmospheric | δ13C CO2 | ‰ PDB | Schoell, Martin | Gas chromatography |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
151 data points