georefid:2004-014636georefid:2004-014634SEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContact2011-06-23T00:00:00Zhttp://sedis.iodp.org/pub-catalogue/index.php?id=10.2973/odp.proc.ir.205.102.2003<gco:CharacterString>CORK-II; long-term monitoring of fluid chemistry, fluxes, and hydrology in instrumented boreholes at the Costa Rica subduction zone</gco:CharacterString>2003-01-01publicationgeorefid:2004-014636doi:10.2973/odp.proc.ir.205.102.2003Jannasch, Hans W.Monterey Bay Aquarium Research Institute, Moss Landing, CA, United StatesauthorDavis, Earl E.Universitaet Bremen, Federal Republic of GermanyauthorKastner, MiriamOcean Drilling Program, United StatesauthorMorris, Julie D.Southampton Oceanography Centre, United KingdomauthorPettigrew, Thomas L.Woods Hole Oceanographic Institution, United StatesauthorPlant, John N.Dalhousie University, CanadaauthorSolomon, Evan A.Japan Marine Science and Technology Center, JapanauthorVillinger, Heinrich W.Scripps Institution of Oceanography, United StatesauthorWheat, C. GeoffreyUniversity of Wyoming, United StatesauthorTexas A&M University, Ocean Drilling Program, College Station, TX, United StatespublisherdocumentDigitalIn: Morris, Julie D., Villinger, Heinrich W., Klaus, Adam, Cardace, Dawn M., Chavagnac, Valerie M. C., Clift, Peter D., Haeckel, Matthias, Hisamitsu, Toshio, Kastner, Miriam, Pfender, Marion, Saffer, Demian M., Santelli, Cara, Schramm, Burkhard, Screaton, Elizabeth J., Solomon, Evan A., Strasser, Michael, Thu, Moe Kyaw, Vannucchi, Paola, Nevill, Heather M. (editor), Proceedings of the Ocean Drilling Program, initial reports; fluid flow and subduction fluxes across the Costa Rica convergent margin, implications for the seismogenic zone and subduction factory; covering Leg 205 of the cruises of the drilling vessel JOIDES Resolution; Victoria, Canada, to Balboa, Panama; sites 1253-1255; 2 September-6 November 2002205Two boreholes were drilled on the Costa Rica subduction zone to study the geochemical fluxes and related processes associated with sediment compaction, dewatering, and alteration. The holes were outfitted with modified CORKs (CORK-IIs) that include instruments capable of fluid sampling and measuring flow rates, temperature, and pressure. Fluids are sampled continuously within the decollement zone and in the uppermost oceanic crust with long-term OsmoSamplers for both dissolved ions and gases. The major advantage of the CORK-II is that samples and data can be retrieved without disrupting the pressurized horizons by temporarily opening them to hydrostatic pressures during instrument exchange. This paper describes the concepts, design, and deployment of CORK-IIs in Holes 1253A and 1255A.completedOceanographyHydrochemistryboreholesCentral AmericaCORK-IICosta RicaEast PacificfluctuationsgasesgeochemistryhydrochemistryinstrumentsLeg 170Leg 205Middle America TrenchmonitoringNorth PacificNortheast PacificobservatoriesOcean Drilling Programocean floorsODP Site 1253ODP Site 1255OsmoSamplersPacific Oceansamplingsea watersubduction zonesurn:org.iodp:exp:170urnlargerWorkCitationcampaignurn:org.iodp:exp:205urnlargerWorkCitationcampaignurn:org.iodp:exp:205:site:1253urnlargerWorkCitationstudyurn:org.iodp:exp:205urnlargerWorkCitationcampaignurn:org.iodp:exp:205:site:1255urnlargerWorkCitationstudyurn:org.iodp:exp:205urnlargerWorkCitationcampaignEnglishgeoscientificInformation-86.1124-86.11129.38549.3918Available only on CD-ROM in PDF format and on the Web in PDF or HTMLapplication/pdfunknownSEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContacthttp://www-odp.tamu.edu/publications/205_IR/VOLUME/CHAPTERS/IR205_02.PDFdownload