georefid:2007-101810georefid:2007-101808SEDIS 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=10.2204/iodp.proc.301.102.20052004-01-01publicationgeorefid:2007-101810doi:10.2204/iodp.proc.301.102.2005Zuehlsdorff, L.University of Bremen, Department of Geosciences, Bremen, Federal Republic of GermanyauthorHutnak, MichaelUniversity of Tokyo, JapanauthorFisher, Andrew T.Texas A&M University, United StatesauthorSpiess, V.Lamont-Doherty Earth Observatory, United StatesauthorDavis, Earl E.Universitaet Bremen, Federal Republic of GermanyauthorNedimovic, M.University of Miami, United StatesauthorCarbotte, S.University of Southampton, United KingdomauthorVillinger, H.Stockholm Universitet, SwedenauthorBecker, KeirCarl von Ossietzky Universitaet Oldenburg, Federal Republic of GermanyauthorIODP Management International, Washington, DC, United StatespublisherdocumentDigitalIn: Fisher, Andrew T., Urabe, Tetsuro, Klaus, Adam, Iturrino, Gerardo J., Bartetzko, Anne C. M., Becker, Keir, Coggon, Rosalind, Dumont, Marion, Engelen, Bert, Goto, Shusaku, Hawkins, Lisa, Heuer, Verena, Hulme, Samuel Mark, Hutnak, Michael, Inagaki, Fumio, Kiyokawa, Shoichi, Lever, Mark Alexander, Nakagawa, Satoshi, Nielsen, Mark Edward, Noguchi, Takuroh, Sager, William W., Sakaguchi, Masumi, Steinsbu, Bjorn Olav, Tsuji, Takeshi, Wheat, Charles Geoffrey, Rice, Jonathan, Proceedings of the Integrated Ocean Drilling Program; Juan de Fuca hydrogeology; covering Expedition 301 of the riserless drilling platform from and to Astoria, Oregon (USA); Sites U1301 and 1026; 28 June-21 August 2004301Integrated Ocean Drilling Program Expedition 301 was preceded during 2000 and 2002 by three surveys that helped to delineate seafloor and basement relief, sediment thickness, and the nature of ridge-flank hydrothermal conditions and processes on the eastern flank of the Juan de Fuca Ridge. These surveys generated swath map, seismic, and thermal data used to select locations for primary and secondary drilling targets, building from several decades of earlier work. We show compilations and examples of data from several characteristic settings in and around the Expedition 301 work area and use these observations to evaluate sedimentation patterns and thermal conditions in basement. There remain important unanswered questions in this area concerning fluid circulation within the upper oceanic crust, the magnitude of lithospheric heat input, the quantitative significance of advective heat loss from the crust, and relations between basement relief, sedimentation, and sediment alteration. These questions may be resolved through collection of a modest amount of additional data focusing on a few critical locations.completedOceanographyApplied geophysicscirculationcorescrustEast PacificExpedition 301fluid dynamicsgeophysical methodsgeophysical profilesgeophysical surveysheat flowhydrothermal conditionsImageFluxIntegrated Ocean Drilling ProgramJuan de Fuca Ridgemarine sedimentsNorth PacificNortheast Pacificocean floorsoceanic crustPacific OceanRetroFluxsea watersedimentsseismic methodsseismic profilessurveysthermal propertiesurn:org.iodp:exp:301urnlargerWorkCitationcampaignEnglishgeoscientificInformation-127.4600-127.450047.450047.4600application/pdfunknownSEDIS Publication Catalogue

ana.macario@awi.de

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