georefid:2007-088840SEDIS Publication Catalogue

ana.macario@awi.de

http://sedis.iodp.org/pub-catalogue/informationpointOfContact2011-06-23T00:00:00Zhttp://sedis.iodp.org/pub-catalogue/index.php?id=2007-0888401999-01-01publicationgeorefid:2007-088840issn:1058-1448Sacks, I. SelwynCarnegie Isntitution of Washington, Department of Terrestrial Magnetism, Washington, DC, United StatesauthorSuyehiro, KiyoshiUniversity of Tokyo, JapanauthorActon, Gary D.Ocean Drilling Program, United StatesauthorOcean Drilling Program, Texas A&M University, College Station, TX, United StatespublisherdocumentDigitalScientific Prospectus18650 pp.1058-1448During Leg 186, we will drill two sites off the northeast coast of Japan to monitor seismic and aseismic crustal deformation associated with subduction of the Pacific Plate beneath Japan. Both sites will be drilled into the deep-sea terrace on the landward side of the Japan Trench, a region that is part of the deforming edge of the overriding Eurasian plate. Borehole strainmeters, tiltmeters, and broadband seismometers will be installed at the bottom of the two holes to continuously monitor strain and seismic activity associated with plate motions. This will be the first attempt to establish long-term seafloor borehole observatories in one of the most active and most studied subduction zones in the world. These observatories will provide crucial near-field data that will quantify elastic and anelastic deformation occurring in the active plate boundary zone. Secondary objectives, which rely on coring at both sites, include (1) determining the forearc subsidence and deformation history, (2) placing constraints on tectonic erosion within the subduction zone, and (3) obtaining a record of arc volcanism over the past 3 m.y.completedSolid-earth geophysicsApplied geophysicsboreholescoresdrillingearthquakesexpeditionsgeophysical methodsgeophysical profilesgeophysical surveysJapan TrenchLeg 186marine drillingmarine sedimentsmonitoringNorth PacificNorthwest PacificobservatoriesOcean Drilling ProgramPacific Oceanplanningplate boundariesplate tectonicssamplingsedimentsseismic methodsseismic profilessubduction zonessurveyswell-loggingWest Pacificurn:org.iodp:exp:186urnlargerWorkCitationcampaignEnglishgeoscientificInformation143.1900143.210038.400039.1500application/pdfunknownSEDIS Publication Catalogue

ana.macario@awi.de

http://sedis.iodp.org/pub-catalogue/informationpointOfContacthttp://www-odp.tamu.edu/publications/prosp/186_prs/186prosp.pdfdownload