georefid:2013-047936SEDIS Publication Catalogue

ana.macario@awi.de

http://sedis.iodp.org/pub-catalogue/informationpointOfContact2013-07-08T00:00:00Zhttp://sedis.iodp.org/pub-catalogue/index.php?id=10.2204/iodp.proc.322.201.20132013-01-01publicationgeorefid:2013-047936doi:10.2204/iodp.proc.322.201.2013Tudge, JoanneUniversity of Wisconsin-Madison, Department of Geosciences, Madison, WI, United StatesauthorLovell, MikeJapan Agency for Marine-Earth Science and Technology, JapanauthorDavis, SarahTohoku University, JapanauthorIODP Management International, Washington, DC, United StatespublisherdocumentDigitalIn: Underwood, Michael B., Saito, Saneatsu, Kubo, Yu'suke, Sanada, Yoshinori, Chiyonobu, Shun, Destrigneville, Christine, Dugan, Brandon, Govil, Pawan, Hamada, Yohei, Heuer, Verena, Huepers, Andre, Ikari, Matt, Kitamura, Yujin, Kutterolf, Steffen, Labanieh, Shasa, Moreau, John, Naruse, Hajime, Oda, Hirokuni, Park, Jin-Oh, Pickering, Kevin T., Scudder, Rachel, Slagle, Angela, Spinelli, Glenn, Torres, Marta E., Tudge, Joanne, Wu Huaichun, Yamamoto, Tomohiro, Yamamoto, Yuzuru, Zhao, Xixi, Proceedings of the Integrated Ocean Drilling Program; NanTroSEIZE Stage 2; subduction inputs; Expedition 322 of the riser drilling platform, Yokkaichi, Japan, to Shingu, Japan, Sites C0011 and C0012, 1 September-10 October 2009322During Integrated Ocean Drilling Program (IODP) Expedition 322 for the Nankai Trough Seismogenic Zone Experiment project, no logging-while-drilling (LWD)-based porosity measurements were acquired at Site C0011. Here we calculate porosity from both the ring and bit resistivity measurements. Core-derived thermal conductivity coefficients are used to estimate constant thermal gradients and variable thermal gradients for the different lithologies encountered. Temperature profiles are then generated based on the calculated thermal gradients to estimate water resistivity. Using the temperature-corrected water resistivity in Archie's equation, porosity is calculated from the two LWD resistivity measurements. When compared to core-based porosity measurements, the ring resistivity-derived porosity, with a constant thermal gradient of 91.3 degrees C/km, provides the more accurate estimate of porosity.completedOceanographyApplied geophysicsArchie's lawboreholescoreselectrical methodsgeophysical methodsheat flowIntegrated Ocean Drilling ProgramIODP Site C0011marine sedimentsNanTroSEIZENorth PacificNorthwest PacificPacific Oceanporosityresistivitysedimentary rockssedimentsShikoku Basintemperaturethermal conductivitywell logsWest Pacificurn:org.iodp:exp:319:site:C0011urnlargerWorkCitationstudyurn:org.iodp:exp:319urnlargerWorkCitationcampaignurn:org.iodp:exp:322:site:C0011urnlargerWorkCitationstudyurn:org.iodp:exp:322urnlargerWorkCitationcampaignurn:org.iodp:exp:333:site:C0011urnlargerWorkCitationstudyurn:org.iodp:exp:333urnlargerWorkCitationcampaignEnglishgeoscientificInformation136.5254136.525632.494432.4945application/pdfunknownSEDIS Publication Catalogue

ana.macario@awi.de

http://sedis.iodp.org/pub-catalogue/informationpointOfContacthttp://publications.iodp.org/proceedings/322/ERR/CHAPTERS/322_201.PDFdownload