georefid:2011-069159SEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContact2013-07-08T00:00:00Zhttp://sedis.iodp.org/pub-catalogue/index.php?id=10.2204/iodp.proc.314315316.218.2011<gco:CharacterString>Data report; consolidation, permeability, and fabric of sediments from the Nankai continental slope, IODP Sites C0001, C0008, and C0004</gco:CharacterString>2011-01-01publicationgeorefid:2011-069159doi:10.2204/iodp.proc.314315316.218.2011Saffer, DemianPennsylvania State University, Rock and Sediment Mechanics Laboratory, University Park, PA, United StatesauthorGuo, JunhuaUniversity of Wisconsin-Madison, United StatesauthorUnderwood, Michael B.Ecole Nationale Supeieure de Gelogie, FranceauthorLikos, William JohnChungnam National Univesity, South KoreaauthorSkarbek, Robert M.CEREGE-College de France, FranceauthorSong, InsunUniversity of Texas-Austin, United StatesauthorGildow, MarieCSIC, Institute of Earth Sciences, SpainauthorIODP Management International, Washington, DC, United StatespublisherdocumentDigitalIn: Kinoshita, Masataka, Tobin, Harold, Thu, Moe Kyaw, Gaillot, Philippe, Bourlange, Sylvain, Chang, Chandong, Conin, Marianne, Gulick, Sean P. S., Jurado Rodriguez, Maria Jose, Martin, Kylara M., McNeill, Lisa, Miyakawa, Ayumu, Moore, J. Casey, Nakamura, Yasuyuki, Saito, Saneatsu, Sawyer, Dale S., Tudge, Joanne, Yamada, Yasuhiro, Ashi, Juichiro, Lallemant, Siegfried, Masago, Hideki, Behrmann, Jan H., Boeckel, Babette, Byrne, Timothy, Calves, Gerome, Famin, Vincent, Guo, Junhua, Hashimoto, Yoshitaka, Hayashi, Hiroki, Henry, Pierre, Hirono, Tetsuro, Hulme, Samuel M., Kaksonen, Anna Henriikka, Kanagawa, Kyuichi, Kanamatsu, Toshiya, Kopf, Achim, Lewis, Jonathan C., Likos, William John, Pares, Josep Maria, Saito, Hiroyuki, Schmidt-Schierhorn, Friederike, Tomaru, Hitoshi, Underwood, Michael B., Zhu, Wen-Lu, Kimura, Gaku, Screaton, Elizabeth J., Curewitz, Daniel, Chester, Frederick, Fabbri, Olivier, Fergusson, Chris, Girault, France E., Goldsby, David, Harris, Robert, Inagaki, Fumio, Jiang, Tao, Kitamura, Yujin, Knuth, Matt, Li, Chun-Feng, Liljedahl, Limmemor Claesson, Louis, Laurent, Milliken, Kitty, Nicholson, Uisdean, Riedinger, Natascha, Sakaguchi, Arito, Solomon, Evan, Strasser, Michael, Xin Su, Tsutsumi, Akito, Ujiie, Kohtaro, Yamaguchi, Asuka, Zhao, Xixi, Proceedings of the Integrated Ocean Drilling Program; NanTroSeize Stage 1; investigtions of seismogenesis, Nankai Trough, Japan; Expeditions 314, 315, and 316 of the riser drilling platform from and to Shingu, Japan; Sites C0001-C0006, 21 September-15 November 2007; and Sites C0001 and C0002, 16 November-18 December 2007 and Sites C0004 and C0006-C0008, 19 December 2007-5 February 2008314/315/316We conducted constant rate of strain (CRS) consolidation tests on 16 whole-round samples obtained during Integrated Ocean Drilling Program (IODP) Expeditions 315 and 316 as part of Nankai Trough Seismogenic Zone Experiment (NanTroSEIZE) Stage 1 drilling. Samples were taken from slope sediments and the underlying accretionary wedge cored at IODP Sites C0001, C0004, and C0008 in the vicinity of a major out-of-sequence thrust fault (termed the megasplay). We conducted tests in parallel at the Rock and Sediment Mechanics Laboratory at The Pennsylvania State University (USA) and the geotechnical laboratory at the University of Missouri (USA), with the objectives of (1) defining the compression behavior and hydraulic properties of the sediments and (2) estimating in situ effective stress and pore pressure conditions from laboratory stress-strain behavior. In addition, we conducted quantitative fabric analyses at the University of Missouri on samples taken immediately adjacent to the CRS test specimens using an environmental scanning electron microscope. The samples exhibit similar consolidation and hydraulic properties. The samples exhibit a general trend of increasing fabric development with depth at Sites C0004 and C0008, with samples from the accretionary prism at Site C0001 and slope sediments in the footwall of the megasplay fault at Site C0004 exhibiting a higher degree of grain alignment. The compression index ranges from 0.419 to 1.058 for the entire suite of samples, with most values ranging from 0.6 to 0.8. Intrinsic permeability decreases systematically with increasing effective axial stress and decreasing porosity and varies log-linearly with porosity. The permeability-porosity trends for specimens from the three sites are similar and exhibit no systematic variation with depth. Estimated values of in situ hydraulic conductivity follow a similar trend at all three sites and decrease with depth from values of 3.3X10 (super -10) to 1.0X10 (super -9) m/s at approximately 50 meters below seafloor (mbsf) to 3.3X10- (super -11) m/s at 440 mbsf. We estimated maximum preconsolidation stress (Pc') using two separate techniques and consistently obtained values comparable to calculated values of hydrostatic vertical effective stress at Sites C0001 and C0008. Similarity of these values is consistent with normal consolidation and hydrostatic pore fluid pressures. In contrast, Pc' values for Site C0004 document apparent overconsolidation.completedOceanographyEngineering geologyAsiaboreholescompressionconsolidationconsolidometer testscontinental slopecoresExpedition 315Expedition 316experimental studiesfabricFar EastHonshuhydraulic conductivityIntegrated Ocean Drilling ProgramIODP Site C0001IODP Site C0004IODP Site C0008JapanKii Peninsulalaboratory studiesmarine sedimentsmechanical propertiesNankai TroughNanTroSEIZENorth PacificNorthwest PacificPacific Oceanpermeabilitypore pressureporositysedimentssoil mechanicsstrainstressWest Pacificurn:org.iodp:exp:315urnlargerWorkCitationcampaignurn:org.iodp:exp:316urnlargerWorkCitationcampaignurn:org.iodp:exp:314:site:C0001urnlargerWorkCitationstudyurn:org.iodp:exp:314urnlargerWorkCitationcampaignurn:org.iodp:exp:315:site:C0001urnlargerWorkCitationstudyurn:org.iodp:exp:315urnlargerWorkCitationcampaignurn:org.iodp:exp:314:site:C0004urnlargerWorkCitationstudyurn:org.iodp:exp:314urnlargerWorkCitationcampaignurn:org.iodp:exp:316:site:C0004urnlargerWorkCitationstudyurn:org.iodp:exp:316urnlargerWorkCitationcampaignurn:org.iodp:exp:316:site:C0008urnlargerWorkCitationstudyurn:org.iodp:exp:316urnlargerWorkCitationcampaignEnglishgeoscientificInformation136.4300136.434033.124433.1400application/pdfunknownSEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContacthttp://publications.iodp.org/proceedings/314_315_316/ERR/CHAPTERS/314315316_218.PDFdownload