georefid:2012-054590SEDIS 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.sd.13.01.2011<gco:CharacterString>IODP Expedition 327 and Atlantis Expedition AT 18-07; observatories and experiments on the eastern flank of the Juan de Fuca Ridge</gco:CharacterString>2012-01-01publicationgeorefid:2012-054590doi:10.2204/iodp.sd.13.01.2011Fisher, Andrew T.University of California-Santa Cruz, Earth and Planetary Sciences Department, Santa Cruz, CA, United StatesauthorTsuji, TakeshiKyoto University, JapanauthorPetronotis, KaterinaTexas A&M University, United StatesauthorWheat, C. GeoffUniversity of Alaska-Fairbanks, United StatesauthorBecker, KeirUniversity of Miami, United StatesauthorClark, Jordan F.University of California-Santa Barbara, United StatesauthorCowen, JamesUniversity of Hawaii-Manoa, United StatesauthorEdwards, KatrinaUniversity of Southern California, United StatesauthorJannasch, HansMonterey Bay Aquarium Research Institute, United StatesauthorGautier, J. M.authorHaddad, A.authorKane, J.authorKeske, S.authorHarris, MichelleauthorHulme, S.authorJi, F.authorMasui, R.authorMiyamoto, H.authorMorvan, S.authorMrozewski, S.authorOrcutt, B.authorPeart, L.authorRichardson, B.authorRutter, J.authorThiberge, B.authorWinslow, D.authorGlazer, B.authorAusejo-Robador, A.authorBrennon, R.authorGross, A.authorHammer, K.authorHseih, C. C.authorJungbluth, S.authorLin, H. T.authorRamirez, G.authorRinglein, J.authorSlovacek, A.authorStrong, L.authorIntegrated Ocean Drilling Program Management International, Sapporo; Washington, DC, InternationalpublisherdocumentDigitalScientific Drilling134-11Integrated Ocean Drilling Program (IODP) Expedition 327 (summer 2010) was designed to resolve the nature of fluid-rock interactions in young, upper volcanic crust on the eastern flank of the Juan de Fuca Ridge. Expedition 327 drilled, cased and cored two new basement holes, conducted hydrogeologic experiments, and installed subseafloor borehole observatories (Circulation Obviation Retrofit Kits, CORKs). These CORKs were intended to allow borehole conditions to recover to a more natural state after the dissipation of disturbances caused by drilling, casing, and other operations; provide a long-term monitoring and sampling presence for determining fluid pressure, temperature, composition, and microbiology; and facilitate the completion of active experiments to resolve crustal hydrogeologic conditions and processes. Expedition 327 was followed (summer 2011) by R/V Atlantis Expedition AT18-07, with the remotely-operated vehicle (ROV) Jason, to service these CORKs, collect subseafloor pressure data, recover and deploy autonomous fluid and microbial samplers, collect large volumes of borehole fluids, and initiate a cross-hole hydrogeologic experiment using an electromagnetic flow meter. In addition, Atlantis Expedition AT18-07 refurbished an old CORK that could not be replaced during IODP Expedition 327, completing a critical part of the three-dimensional observation network that is currently being used to monitor a large-scale, directional formation response to long-term fluid flow from the crust.completedOceanographyAtlantic Expedition AT 18-07boreholesCirculation Obviation Retrofit KitCORKcrustdrillingEast PacificExpedition 327expeditionsground waterigneous rocksIntegrated Ocean Drilling ProgramJuan de Fuca Ridgemarine drillingNorth PacificNortheast Pacificobservatoriesoceanic crustPacific Oceanvolcanic rockswater-rock interactionurn:org.iodp:exp:327urnlargerWorkCitationcampaignEnglishgeoscientificInformation-128.0000-127.300047.400048.0000application/x-unknown-media-typeunknownSEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContacthttp://www.iodp.org/doc_download/3398-sd134-11download