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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 204-1249 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.710766, 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: 44.570426 * Median Longitude: -125.147312 * South-bound Latitude: 44.570180 * West-bound Longitude: -125.147350 * North-bound Latitude: 44.570610 * East-bound Longitude: -125.147280
Date/Time Start: 2002-07-24T09:30:00 * Date/Time End: 2002-08-06T07:15:00
Minimum DEPTH, sediment/rock: 0.00 m * Maximum DEPTH, sediment/rock: 38.28 m
Event(s):
204-1249B  * Latitude: 44.570180 * Longitude: -125.147350 * Date/Time Start: 2002-07-24T09:30:00 * Date/Time End: 2002-07-25T13:30:00 * Elevation: -778.4 m * Penetration: 74.9 m * Recovery: 14.01 m * Location: North Pacific Ocean * Campaign: Leg204 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 8 cores; 45 m cored; 0 m drilled; 31.1 % recovery
204-1249C  * Latitude: 44.570610 * Longitude: -125.147350 * Date/Time Start: 2002-07-25T13:30:00 * Date/Time End: 2002-07-26T11:45:00 * Elevation: -778.4 m * Penetration: 90 m * Recovery: 58.97 m * Location: North Pacific Ocean * Campaign: Leg204 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 14 cores; 88.5 m cored; 1.5 m drilled; 66.6 % recovery
204-1249D  * Latitude: 44.570360 * Longitude: -125.147280 * Date/Time Start: 2002-08-04T22:30:00 * Date/Time End: 2002-08-05T03:45:00 * Elevation: -777.2 m * Penetration: 18.5 m * Recovery: 4.78 m * Location: North Pacific Ocean * Campaign: Leg204 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 3 cores; 16.5 m cored; 2 m drilled; 29 % 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 CommentCommentMilkov, Alexei V
5 MethaneCH4%Milkov, Alexei VGas chromatography
6 EthaneC2H6ppmvMilkov, Alexei VGas chromatographyand other C2 gases
7 PropaneC3H8ppmvMilkov, Alexei VGas chromatographyand other C3 gases
8 Isobutanei-C4H10ppmvMilkov, Alexei VGas chromatographyand other i-C4 hydrocarbons
9 Butanen-C4ppmvMilkov, Alexei VGas chromatographyand other n-C4 hydrocarbons
10 Carbon dioxideCO2%Milkov, Alexei VGas chromatography
11 Hydrogen sulfideH2SppmvMilkov, Alexei VGas chromatography
12 Methane/C2+ hydrocarbons ratioC1/C2+Milkov, Alexei VCalculated
13 Methane/Carbon dioxide ratioC1/CO2Milkov, Alexei VCalculated
14 δ13C, methaneδ13C CH4‰ PDBMilkov, Alexei VMass spectrometer Finnigan Delta Plus
15 δ13C, ethaneδ13C C2H6‰ PDBMilkov, Alexei VMass spectrometer Finnigan Delta Plusand other C2 gases
16 δ13C, propaneδ13C C3H8‰ PDBMilkov, Alexei VMass spectrometer Finnigan Delta Plusand other C3 gases
17 δ13Cδ13C‰ PDBMilkov, Alexei VMass spectrometer Finnigan Delta Plusof CO2
18 δ Deuterium, methaneδD CH4‰ SMOWMilkov, Alexei VMass spectrometer Finnigan Delta Plus
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
217 data points

Data

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

1 
Event		2 
Depth sed [m]		3 
Sample label		4 
Comment		5 
CH4 [%]		6 
C2H6 [ppmv]		7 
C3H8 [ppmv]		8 
i-C4H10 [ppmv]		9 
n-C4 [ppmv]		10 
CO2 [%]		11 
H2S [ppmv]		12 
C1/C2+		13 
C1/CO2		14 
δ13C CH4 [‰ PDB]		15 
δ13C C2H6 [‰ PDB]		16 
δ13C C3H8 [‰ PDB]		17 
δ13C [‰ PDB]		18 
δD CH4 [‰ SMOW]
204-1249B 38.28204-1249B-4A-1,74-8297.739345030001.9140281.00051.000-64.8-34.5-3.8
204-1249C 1.05204-1249C-1H-1,105-12099.6128903010100.29501068.000338.000-66.2-34.5-25.0-0.1
204-1249C1.95204-1249C-1H-1,195-20099.465121020000.4130813.000241.000-65.3
204-1249C2.00204-1249C-2H-1,0-599.425202010000.3720490.000267.000-63.3-9.9
204-1249C5.00204-1249C-2H-CC-66.4-12.3
204-1249C6.06204-1249C-3H-1,106-13199.430167020000.4000588.000248.000-67.0-34.6-23.1-2.0-200
204-1249C18.00204-1249C-4H-2,62-7298.93417600000.8900563.000111.000-66.0-2.0
204-1249C19.60204-1249C-4H-3,57-5999.630367030269.000-65.4-33.5-23.12.3
204-1249C20.80204-1249C-4H-4,70-8198.9722290201000.7960426.000124.000
204-1249D 2.11204-1249D-1H-CC99.380155050000.4600620.000216.000-68.0-6.7
204-1249D10.50204-1249D-3H-1,150-16096.46413800003.3980699.00028.000-66.8-35.53.7
204-1249E 0.00204-1249E-1H-1,0-1099.6101330030100.2530725.000394.000-68.0-33.7-22.0-4.8
204-1249E10.32204-1249E-3H-2,70-8099.135100030000.7620960.000130.000-65.35.1
204-1249F 0.00204-1249F-1H-1,0-20pure gas hydrate (no contamination from mud)99.66911100000.2210898.000452.000-68.0
204-1249F2.00204-1249F-1H-mbio-67.2-11.9
204-1249F16.14204-1249F-5H-1,64-7099.135165001000.6990597.000142.000-63.2-198
204-1249F16.25204-1249F-5H,bottom-63.22.5
204-1249F17.55204-1249F-6X-1,100-11099.190282020000.5260350.000188.000-64.2-16.7
204-1249F17.55204-1249F-6X-1,100-110pure gas hydrate (no contamination from mud)99.627370030267.000
204-1249F17.65204-1249F-6X-1,bottom-64.6-3.4
204-1249F32.85204-1249F-8H-2,102-112-66.41.4
204-1249F33.04204-1249F-8H-2,117-12799.2352300201000.5320425.000187.000-63.5-34.11.4