georefid:2011-000997SEDIS Publication Catalogue

ana.macario@awi.de

http://sedis.iodp.org/pub-catalogue/informationpointOfContact2011-07-06T00:00:00Zhttp://sedis.iodp.org/pub-catalogue/index.php?id=10.2204/iodp.sd.10.01.20102010-01-01publicationgeorefid:2011-000997doi:10.2204/iodp.sd.10.01.2010McNeill, LisaUniversity of Southampton, National Oceanography Centre, Southampton, United KingdomauthorSaffer, DemianPennsylvania State University, United StatesauthorByrne, TimUniversity of Connecticut, United StatesauthorAraki, EiichiroJapan Agency for Marine-Earth Science and Technology, JapanauthorToczko, SeanauthorEguchi, NobuauthorTakahashi, KyomaauthorIntegrated Ocean Drilling Program Management International, Sapporo; Washington, DC, InternationalpublisherdocumentDigitalScientific Drilling104-13The Nankai Trough Seismogenic Zone Experiment (NanTroSEIZE) is a major drilling project designed to investigate fault mechanics and the seismogenic behavior of subduction zone plate boundaries. Expedition 319 is the first riser drilling operation within scientific ocean drilling. Operations included riser drilling at Site C0009 in the forearc basin above the plate boundary fault, non-riser drilling at Site C0010 across the shallow part of the megasplay fault system--which may slip during plate boundary earthquakes - and initial drilling at Site C0011 (incoming oceanic plate) for Expedition 322. At Site C0009, new methods were tested, including analysis of drill mud cuttings and gas, and in situ measurements of stress, pore pressure, and permeability. These results, in conjunction with earlier drilling, will provide a) the history of forearc basin development (including links to growth of the megasplay fault system and modern prism), b) the first in situ hydrological measurements of the plate boundary hanging wall, and c) integration of in situ stress measurements (orientation and magnitude) across the forearc and with depth. A vertical seismic profile (VSP) experiment provides improved constraints on the deeper structure of the subduction zone. At Site C0010, logging-while-drilling measurements indicate significant changes in fault zone and hanging wall properties over short (<5 km) along-strike distances, suggesting different burial and/or uplift history. The first borehole observatory instruments were installed at Site C0010 to monitor pressure and temperature within the megasplay fault zone, and methods of deployment of more complex observatory instruments were tested for future operations.completedSolid-earth geophysicsSeismologyApplied geophysicsactive marginsAsiabasinsboreholescontinental margincorescrustdrillingearthquakesEurasian PlateExpedition 319Far Eastfaultsfore-arc basinsgeophysical methodsgeophysical profilesgeophysical surveysHonshuIntegrated Ocean Drilling ProgramIODP Site C0009IODP Site C0010JapanKii Peninsulamarine drillingmarine sedimentsmegasplay faultsNankai TroughNanTroSEIZENorth PacificNorthwest Pacificoceanic crustPacific OceanPhilippine Sea Platephysical propertiesplate boundariesplate tectonicsprogramssedimentsseismic methodsseismic profilesstresssubduction zonessurveyswell logsWest PacificEnglishgeoscientificInformation136.3209136.411233.123633.2728application/pdfunknownSEDIS Publication Catalogue

ana.macario@awi.de

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