georefid:2007-008208georefid:2007-008188SEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContact2011-06-23T00:00:00Zhttp://sedis.iodp.org/pub-catalogue/index.php?id=10.2973/odp.proc.sr.201.119.2006<gco:CharacterString>Determination of in situ methane based on analysis of void gas</gco:CharacterString>2006-01-01publicationgeorefid:2007-008208doi:10.2973/odp.proc.sr.201.119.2006Spivack, Arthur J.University of Rhode Island, NASA Astrobiology Institute, Narragansett, RI, United StatesauthorMcNeil, CraigUniversity of Rhode Island, United StatesauthorHolm, Nils G.Ocean Drilling Program, United StatesauthorHinrichs, Kai-UweUniversity of California Santa Cruz, United StatesauthorTexas A&M University, Ocean Drilling Program, College Station, TX, United StatespublisherdocumentDigitalIn: 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 2002201A 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.completedGeneral geochemistryaliphatic hydrocarbonsalkanesargonbiochemistrycontinental margincoresEast PacificEquatorial Pacificgasesgeochemistryhydrocarbonsin situLeg 201methanenitrogennoble gasesOcean Drilling Programorganic compoundsPacific OceanPeruporositySouth Americatechniquesurn:org.iodp:exp:201urnlargerWorkCitationcampaignEnglishgeoscientificInformation-110.3500-77.5500-12.05003.5000Available only on CD-ROM in PDF format and on the Web in PDF or HTML; includes appendixapplication/pdfunknownSEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContacthttp://www-odp.tamu.edu/publications/201_SR/VOLUME/CHAPTERS/119.PDFdownload