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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 204-1245 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.710763, 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: 44.586070 * Median Longitude: -125.148975 * South-bound Latitude: 44.585980 * West-bound Longitude: -125.149100 * North-bound Latitude: 44.586160 * East-bound Longitude: -125.148850
Date/Time Start: 2002-08-06T07:15:00 * Date/Time End: 2002-08-11T00:30:00
Minimum DEPTH, sediment/rock: 53.40 m * Maximum DEPTH, sediment/rock: 101.43 m
Event(s):
204-1245B  * Latitude: 44.585980 * Longitude: -125.149100 * Date/Time Start: 2002-08-06T07:15:00 * Date/Time End: 2002-08-09T15:45:00 * Elevation: -869.7 m * Penetration: 473.7 m * Recovery: 418.02 m * Location: North Pacific Ocean * Campaign: Leg204 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 53 cores; 471.7 m cored; 2 m drilled; 88.6 % recovery
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
Comment:
Gas concentrations are given as volume parts of natural gases. Zero values = not detected.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 Event labelEvent
2 DEPTH, sediment/rockDepth sedmGeocode
3 Sample code/labelSample labelMilkov, Alexei VDSDP/ODP/IODP sample designation
4 MethaneCH4%Milkov, Alexei VGas chromatography
5 EthaneC2H6ppmvMilkov, Alexei VGas chromatographyand other C2 gases
6 PropaneC3H8ppmvMilkov, Alexei VGas chromatographyand other C3 gases
7 Isobutanei-C4H10ppmvMilkov, Alexei VGas chromatographyand other i-C4 hydrocarbons
8 Butanen-C4ppmvMilkov, Alexei VGas chromatographyand other n-C4 hydrocarbons
9 Carbon dioxideCO2%Milkov, Alexei VGas chromatography
10 Hydrogen sulfideH2SppmvMilkov, Alexei VGas chromatography
11 Methane/C2+ hydrocarbons ratioC1/C2+Milkov, Alexei VCalculated
12 Methane/Carbon dioxide ratioC1/CO2Milkov, Alexei VCalculated
13 δ13C, methaneδ13C CH4‰ PDBMilkov, Alexei VMass spectrometer Finnigan Delta Plus
14 δ13C, ethaneδ13C C2H6‰ PDBMilkov, Alexei VMass spectrometer Finnigan Delta Plusand other C2 gases
15 δ13C, carbon dioxide, gas hydrateδ13C CO2 GH‰ PDBMilkov, Alexei VMass spectrometer Finnigan Delta Plus
16 δ Deuterium, methaneδD CH4‰ SMOWMilkov, Alexei VMass spectrometer Finnigan Delta Plus
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
51 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 
Event		2 
Depth sed [m]		3 
Sample label		4 
CH4 [%]		5 
C2H6 [ppmv]		6 
C3H8 [ppmv]		7 
i-C4H10 [ppmv]		8 
n-C4 [ppmv]		9 
CO2 [%]		10 
H2S [ppmv]		11 
C1/C2+		12 
C1/CO2		13 
δ13C CH4 [‰ PDB]		14 
δ13C C2H6 [‰ PDB]		15 
δ13C CO2 GH [‰ PDB]		16 
δD CH4 [‰ SMOW]
204-1245B 54.53204-1245B-6H-5,10399.540200000.458060.730217.000-69.1-45.3-1.3-203
204-1245B85.00204-1245B-9H-CC99.760200000.238045.431420.000-67.5-46.71.7-188
204-1245C 53.40204-1245C-7H-5,4098.60000001.400070.000
204-1245C101.43204-1245C-13H-4,56-7699.611200000.387047.463257.000-67.8-52.6-3.3-205