georefid:2011-022457SEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContact2011-07-06T00:00:00Zhttp://sedis.iodp.org/pub-catalogue/index.php?id=10.2204/iodp.proc.311.205.2009<gco:CharacterString>Data report; Quantitative analysis of grain size distribution for coarse sediments in an accretionary prism; an example from the Cascadia accretionary prism</gco:CharacterString>2009-01-01publicationgeorefid:2011-022457doi:10.2204/iodp.proc.311.205.2009Hashimoto, YoshitakaKochi University, Department of Natural Environmental Science, Kochi, JapanauthorMinamizawa, SatomiU. S. Geological Survey, United StatesauthorIODP Management International, Washington, DC, United StatespublisherdocumentDigitalIn: Riedel, Michael, Collett, Timothy S., Malone, Mitchell J., Guerin, Gilles, Akiba, Fumio, Blanc-Valleron, Marie-Madeleine, Ellis, Michele, Hashimoto, Yoshitaka, Heuer, Verena, Higashi, Yosuke, Holland, Melanie, Jackson, Peter D., Kaneko, Masanori, Kastner, Miriam, Kim, Ji-Hoon, Kitajima, Hiroko, Long, Philip E., Malinverno, Alberto, Myers, Greg, Palekar, Leena D., Pohlman, John, Schultheiss, Peter, Teichert, Barbara, Torres, Marta E., Trehu, Anne M., Wang Jiasheng, Wortmann, Ulrich G., Yoshioka, Hideyoshi, Proceedings of the Integrated Drilling Program; Cascadia Margin gas hydrates; Expedition 311 of the riserless drilling platform; Balboa, Panama, to Victoria, British Columbia (Canada); Sites U1325-U1329; 28 August-28 October 20053111-14Grain size distributions of coarse sediments from a shallow depth of an accretionary prism were examined by two-dimensional image analysis using thin sections. The analyzed samples were obtained during Integrated Ocean Drilling Program (IODP) Expedition 311. Statistical parameters such as kurtosis, skewness, and correlation coefficients of exponential and power functions show no relationship with depth and porosity. There is an inverse relationship between the correlation coefficients of exponential and power functions, indicating that some grain size distributions can be classified. The correlations also relate to sediment textures. Samples with rounded and isolated grains have a higher correlation coefficient with the exponential function. Angular grains and a denser packing texture represent a lower correlation coefficient with the exponential function.completedOceanographyaccretionary wedgesboreholesCascadia subduction zonecoresdrillingEast PacificExpedition 311grain sizeimage analysisIntegrated Ocean Drilling ProgramIODP Site U1325IODP Site U1326IODP Site U1327IODP Site U1328IODP Site U1329kurtosismarine drillingmarine sedimentsNorth PacificNortheast PacificPacific Oceanporositysedimentssize distributionskewnessstatistical analysisstatistical distributionsubduction zonesthin sectionsurn:org.iodp:exp:311urnlargerWorkCitationcampaignurn:org.iodp:exp:311:site:U1325urnlargerWorkCitationstudyurn:org.iodp:exp:311urnlargerWorkCitationcampaignurn:org.iodp:exp:311:site:U1326urnlargerWorkCitationstudyurn:org.iodp:exp:311urnlargerWorkCitationcampaignurn:org.iodp:exp:311:site:U1327urnlargerWorkCitationstudyurn:org.iodp:exp:311urnlargerWorkCitationcampaignurn:org.iodp:exp:311:site:U1328urnlargerWorkCitationstudyurn:org.iodp:exp:311urnlargerWorkCitationcampaignurn:org.iodp:exp:311:site:U1329urnlargerWorkCitationstudyurn:org.iodp:exp:311urnlargerWorkCitationcampaignEnglishgeoscientificInformation-127.0300-126.410048.380048.4700application/pdfunknownSEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContacthttp://publications.iodp.org/proceedings/311/ERR/CHAPTERS/311_205.PDFdownload