georefid:2007-008209georefid: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.201.114.2006<gco:CharacterString>A test of the temperature, pressure, and conductivity tool at a gas-poor background site</gco:CharacterString>2006-01-01publicationgeorefid:2007-008209doi:10.2973/odp.proc.sr.201.114.2006Ussler, William, IIIMonterey Bay Aquarium Research Institute, Monterey, CA, United StatesauthorPaull, Charles K.University of Rhode Island, United StatesauthorMcGill, PaulOcean Drilling Program, United StatesauthorSchroeder, DerrylUniversity of California Santa Cruz, United StatesauthorFerrell, DeanU. S. Geological Survey, 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 tool to continuously monitor temperature, pressure, and conductivity (TPC) changes during Ocean Drilling Program (ODP) coring was tested at ODP Site 1226. TPC sensors are located on the face of the standard ODP advanced piston corer piston, and the data logging electronics and batteries are embedded within the piston. This tool operates autonomously and requires little shipboard attention. The objective is to monitor the TPC changes that occur in gas-rich and gas hydrate- bearing cores and to learn about the processes that occur during core collection. Gas evolution during core recovery alters the temperature and pressure conditions within the core barrel. By establishing families of ascent curves comprising TPC data from successive cores, variations in the relative amounts of gas and gas hydrates stored in sediments can be determined at individual sites and variations between sites can be assessed. Here, the performance of the TPC tool and the response of the tool at a site without significant quantities of sediment gas are described.completedOceanographyconductivitycontinental margincoresEast PacificEquatorial PacificgasesinstrumentsLeg 201marine sedimentsmeasurementOcean Drilling ProgramODP Site 1226Pacific OceanPerupressurerecoverysedimentsSouth Americatechniquestemperatureurn:org.iodp:exp:201urnlargerWorkCitationcampaignurn:org.iodp:exp:201:site:1226urnlargerWorkCitationstudyurn:org.iodp:exp:201urnlargerWorkCitationcampaignEnglishgeoscientificInformation-90.4900-90.4900-3.0600-3.0600Available only on CD-ROM in PDF format and on the Web in PDF or HTMLapplication/pdfunknownSEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContacthttp://www-odp.tamu.edu/publications/201_SR/VOLUME/CHAPTERS/114.PDFdownload