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Milkov, Alexei V; Claypool, George E; Lee, Young-Joo; Sassen, Roger (2005): (Table 4) Molecular and isotopic properties of void gases from sediments near Horizon A of ODP Holes 204-1245C and 204-1250F [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.710772, 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):
Coverage:
Median Latitude: 44.577385 * Median Longitude: -125.149440 * South-bound Latitude: 44.568610 * West-bound Longitude: -125.150030 * North-bound Latitude: 44.586160 * East-bound Longitude: -125.148850
Date/Time Start: 2002-08-09T15:45:00 * Date/Time End: 2002-08-27T21:30:00
Minimum DEPTH, sediment/rock: 157.65 m * Maximum DEPTH, sediment/rock: 185.29 m
Event(s):
204-1245C * Latitude: 44.586160 * Longitude: -125.148850 * Date/Time Start: 2002-08-09T15:45:00 * Date/Time End: 2002-08-11T00:30:00 * Elevation: -868.6 m * Penetration: 201.7 m * Recovery: 185.31 m * Location: North Pacific Ocean * Campaign: Leg204 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 29 cores; 198.7 m cored; 3 m drilled; 93.3 % recovery
204-1250F * Latitude: 44.568610 * Longitude: -125.150030 * Date/Time Start: 2002-08-24T19:15:00 * Date/Time End: 2002-08-27T21:30:00 * Elevation: -795.4 m * Penetration: 180 m * Recovery: 69.1 m * Location: North Pacific Ocean * Campaign: Leg204 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 13 cores; 77 m cored; 103 m drilled; 89.7 % recovery
Comment:
Gas concentrations are given as volume parts of natural gases. Zero values = not detected.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEvent
2DEPTH, sediment/rockDepth sedmGeocode
3Sample code/labelSample labelMilkov, Alexei VDSDP/ODP/IODP sample designation
4MethaneCH4%Milkov, Alexei VGas chromatography
5EthaneC2H6ppmvMilkov, Alexei VGas chromatographyand other C2 gases
6PropaneC3H8ppmvMilkov, Alexei VGas chromatographyand other C3 gases
7Isobutanei-C4H10ppmvMilkov, Alexei VGas chromatographyand other i-C4 hydrocarbons
8Butanen-C4ppmvMilkov, Alexei VGas chromatographyand other n-C4 hydrocarbons
9Isopentanei-C5H12ppmvMilkov, Alexei VGas chromatographyand other i-C5 hydrocarbons
10n-Pentanen-C5H12ppmvMilkov, Alexei VGas chromatographyand other n-C5 hydrocarbons
11Carbon dioxideCO2%Milkov, Alexei VGas chromatography
12Hydrogen sulfideH2SppmvMilkov, Alexei VGas chromatography
13Methane/C2+ hydrocarbons ratioC1/C2+Milkov, Alexei VCalculated
14Methane/Carbon dioxide ratioC1/CO2Milkov, Alexei VCalculated
15δ13C, methaneδ13C CH4‰ PDBMilkov, Alexei VMass spectrometer Finnigan Delta Plus
16δ13C, ethaneδ13C C2H6‰ PDBMilkov, Alexei VMass spectrometer Finnigan Delta Plusand other C2 gases
17δ13C, propaneδ13C C3H8‰ PDBMilkov, Alexei VMass spectrometer Finnigan Delta Plusand other C3 gases
18δ13Cδ13C‰ PDBMilkov, Alexei VMass spectrometer Finnigan Delta Plusand other i-C4 hydrocarbons
19δ13Cδ13C‰ PDBMilkov, Alexei VMass spectrometer Finnigan Delta Plusand other n-C4 hydrocarbons
20δ13Cδ13C‰ PDBMilkov, Alexei VMass spectrometer Finnigan Delta Plusof i-C5 hydrocarbons
21δ13Cδ13C‰ PDBMilkov, Alexei VMass spectrometer Finnigan Delta Plusof CO2
Size:
36 data points

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