georefid:1983-028191georefid:1983-028152SEDIS 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/dsdp.proc.20.204.1973<gco:CharacterString>Interstitial water studies, Leg 15, chemical and isotopic composition of gases from Cariaco Trench sediments</gco:CharacterString>1973-01-01publicationgeorefid:1983-028191doi:10.2973/dsdp.proc.20.204.1973Lyon, Graeme L.Dep. Sci. Ind. Res., Inst. Nucl. Sci., Lower Hutt, New ZealandauthorTexas A & M University, Ocean Drilling Program, College Station, TX, United StatespublisherdocumentDigitalIn: Heezen, Bruce C., MacGregor, Ian D., Foreman, Helen P., Forristall, George Z., Hekel, Heinz, Hesse, Reinhard, Hoskins, Robert H., Jones, E. John W., Krasheninnikov, Valeri, Okada, Hakuyu, Ruef, Michael H., Kaneps, Ansis G. (editor), Initial reports of the Deep Sea Drilling Project, covering Leg 20 of the cruises of the drilling vessel Glomar Challenger; Yokohama, Japan to Suva, Fiji September-November 197120773-774Ten gas samples from DSDP site 147 contained 86-99% methane. The methane had delta 13C values between -59 and -76%o and delta D values of -178+ or -5%o. These values are consistent with an origin due to anaerobic microbial reduction of organic matter in the sediments. The carbon dioxide delta 13C and delta 18O values were both in the range +0.5%o and -4.5%o and both approached zero on the PDB scale as depth increased.completedIsotope geochemistryaliphatic hydrocarbonsalkanesAtlantic OceanC-13/C-12carbonCariaco BasinCaribbean SeaDeep Sea Drilling ProjectDSDP Site 147gasesgeochemistryhydrocarbonshydrogenisotopesLeg 15methanenitrogenNorth AtlanticO-18/O-16organic compoundsoxygenpore waterratiossedimentsstable isotopesurn:org.iodp:exp:15urnlargerWorkCitationcampaignurn:org.iodp:exp:15:site:147urnlargerWorkCitationstudyurn:org.iodp:exp:15urnlargerWorkCitationcampaignEnglishgeoscientificInformation-80.0000-63.000010.450016.3500application/pdfunknownSEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContacthttp://deepseadrilling.org/20/volume/dsdp20_leg15_04.pdfdownload