Spivack, Arthur J. et al. (2006): Determination of in situ methane based on analysis of void gas

Leg/Site/Hole:
ODP 201
Identifier:
2007-008208
georefid
10.2973/odp.proc.sr.201.119.2006
doi
Creator:
Spivack, Arthur J.
University of Rhode Island, NASA Astrobiology Institute, Narragansett, RI, United States
author
McNeil, Craig
University of Rhode Island, United States
author
Holm, Nils G.
Ocean Drilling Program, United States
author
Hinrichs, Kai-Uwe
University of California Santa Cruz, United States
author
Identification:
Determination of in situ methane based on analysis of void gas
2006
In: Jorgensen, Bo B. (editor), D'Hondt, Steven L. (editor), Miller, D. Jay (editor), Aiello, Ivano W., Bekins, Barbara, Blake, Ruth E., Cragg, Barry A., Cypionka, Heribert, Dickens, Gerald R., Ferdelman, Timothy G., Ford, Kathryn H., Gettemy, Glen L., Guerin, Gilles, Hinrichs, Kai-Uwe, Holm, Nils G., House, Christopher H., Inagaki, Fumio, Meister, Patrick, Mitterer, Richard M., Naehr, Thomas H., Niitsuma, Sachiko, Parkes, R. John, Schippers, Axel, Skilbeck, C. Gregory, Smith, David C., Spivack, Arthur J., Teske, Andreas P., Wiegel, Juergen, Proceedings of the Ocean Drilling Program; scientific results; controls on microbial communities in deeply buried sediments, eastern Equatorial Pacific and Peru Margin; covering Leg 201 of the cruises of the drilling vessel JOIDES Resolution; San Diego, California, to Valparaiso, Chile; Sites 1225-1231; 27 January-29 March 2002
Texas A&M University, Ocean Drilling Program, College Station, TX, United States
201
A method for quantifying in situ dissolved methane concentrations in sediment cores that have gas voids is described. The method relies on normalizing methane (CH (sub 4) ) in the gas voids to nitrogen (N (sub 2) ) and/or argon (Ar). The principles of the method are presented. The method was tested during Ocean Drilling Program Leg 201, and preliminary results indicate that it can be used to generate reproducible and accurate dissolved methane values if argon and nitrogen are both measured or if one is measured along with pressure of the gas void.
English
Serial
Coverage:Geographic coordinates:
North:3.5000
West:-110.3500East: -77.5500
South:-12.0500
General geochemistry; aliphatic hydrocarbons; alkanes; argon; biochemistry; continental margin; cores; East Pacific; Equatorial Pacific; gases; geochemistry; hydrocarbons; in situ; Leg 201; methane; nitrogen; noble gases; Ocean Drilling Program; organic compounds; Pacific Ocean; Peru; porosity; South America; techniques;
.