Milkov, Alexei V; Claypool, George E; Lee, Young-Joo; Sassen, Roger (2005): (Table 3) Molecular and isotopic properties of hydrate-bound gases from ODP Site 204-1244 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.710762, In supplement to: Milkov, AV et al. (2005): Gas hydrate systems at Hydrate Ridge offshore Oregon inferred from molecular and isotopic properties of hydrate-bound and void gases. Geochimica et Cosmochimica Acta, 69(4), 1007-1026, https://doi.org/10.1016/j.gca.2004.08.021
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Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 44.586240 * Median Longitude: -125.119680 * South-bound Latitude: 44.586180 * West-bound Longitude: -125.119830 * North-bound Latitude: 44.586300 * East-bound Longitude: -125.119530
Date/Time Start: 2002-07-13T12:45:00 * Date/Time End: 2002-08-22T01:45:00
Minimum DEPTH, sediment/rock: 50.00 m * Maximum DEPTH, sediment/rock: 85.00 m
Event(s):
204-1244C * Latitude: 44.586300 * Longitude: -125.119830 * Date/Time Start: 2002-07-13T12:45:00 * Date/Time End: 2002-07-16T05:30:00 * Elevation: -895.1 m * Penetration: 333.5 m * Recovery: 315.5 m * Location: North Pacific Ocean * Campaign: Leg204 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 39 cores; 332 m cored; 1.5 m drilled; 95 % recovery
204-1244E * Latitude: 44.586180 * Longitude: -125.119530 * Date/Time Start: 2002-08-18T23:00:00 * Date/Time End: 2002-08-22T01:45:00 * Elevation: -893.3 m * Penetration: 250 m * Recovery: 137.73 m * Location: North Pacific Ocean * Campaign: Leg204 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 19 cores; 135.8 m cored; 114.2 m drilled; 101.4 % recovery
Comment:
Gas concentrations are given as volume parts of natural gases. Zero values = not detected.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 3 | Sample code/label | Sample label | Milkov, Alexei V | DSDP/ODP/IODP sample designation | ||
| 4 | Methane | CH4 | % | Milkov, Alexei V | Gas chromatography | |
| 5 | Ethane | C2H6 | ppmv | Milkov, Alexei V | Gas chromatography | and other C2 gases |
| 6 | Propane | C3H8 | ppmv | Milkov, Alexei V | Gas chromatography | and other C3 gases |
| 7 | Methane/C2+ hydrocarbons ratio | C1/C2+ | Milkov, Alexei V | Calculated | ||
| 8 | δ13C, methane | δ13C CH4 | ‰ PDB | Milkov, Alexei V | Mass spectrometer Finnigan Delta Plus | |
| 9 | δ13C, ethane | δ13C C2H6 | ‰ PDB | Milkov, Alexei V | Mass spectrometer Finnigan Delta Plus | and other C2 gases |
| 10 | δ13C | δ13C | ‰ PDB | Milkov, Alexei V | Mass spectrometer Finnigan Delta Plus | of CO2 |
| 11 | δ Deuterium, methane | δD CH4 | ‰ SMOW | Milkov, Alexei V | Mass spectrometer Finnigan Delta Plus |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
28 data points
Data
| 1 Event | 2 Depth sed [m] | 3 Sample label | 4 CH4 [%] | 5 C2H6 [ppmv] | 6 C3H8 [ppmv] | 7 C1/C2+ | 8 δ13C CH4 [‰ PDB] | 9 δ13C C2H6 [‰ PDB] | 10 δ13C [‰ PDB] | 11 δD CH4 [‰ SMOW] |
|---|---|---|---|---|---|---|---|---|---|---|
| 204-1244C | 65.00 | 204-1244C-8H-1,47-52 | 99.996 | 40 | 0 | 25.663 | -67.1 | -43.2 | -13.5 | |
| 204-1244C | 85.00 | 204-1244C-10H-2,70-103 | 99.998 | 20 | 0 | 43.390 | -69.5 | -5.1 | ||
| 204-1244E | 50.00 | 204-1244E-7H-6,124-141 | 99.998 | 20 | 0 | 51.922 | ||||
| 204-1244E | 74.20 | 204-1244E-12H-1,60-6X | 99.998 | 20 | 0 | 50.583 | -68.3 | 1.6 | -208 |