Fisher, Andrew T. et al. (2012): IODP Expedition 327 and Atlantis Expedition AT 18-07; observatories and experiments on the eastern flank of the Juan de Fuca Ridge

Leg/Site/Hole:
IODP 327
Identifier:
2012-054590
georefid

10.2204/iodp.sd.13.01.2011
doi

Creator:
Fisher, Andrew T.
University of California-Santa Cruz, Earth and Planetary Sciences Department, Santa Cruz, CA, United States
author

Tsuji, Takeshi
Kyoto University, Japan
author

Petronotis, Katerina
Texas A&M University, United States
author

Wheat, C. Geoff
University of Alaska-Fairbanks, United States
author

Becker, Keir
University of Miami, United States
author

Clark, Jordan F.
University of California-Santa Barbara, United States
author

Cowen, James
University of Hawaii-Manoa, United States
author

Edwards, Katrina
University of Southern California, United States
author

Jannasch, Hans
Monterey Bay Aquarium Research Institute, United States
author

Gautier, J. M.
author

Haddad, A.
author

Kane, J.
author

Keske, S.
author

Harris, Michelle
author

Hulme, S.
author

Ji, F.
author

Masui, R.
author

Miyamoto, H.
author

Morvan, S.
author

Mrozewski, S.
author

Orcutt, B.
author

Peart, L.
author

Richardson, B.
author

Rutter, J.
author

Thiberge, B.
author

Winslow, D.
author

Glazer, B.
author

Ausejo-Robador, A.
author

Brennon, R.
author

Gross, A.
author

Hammer, K.
author

Hseih, C. C.
author

Jungbluth, S.
author

Lin, H. T.
author

Ramirez, G.
author

Ringlein, J.
author

Slovacek, A.
author

Strong, L.
author

Identification:
IODP Expedition 327 and Atlantis Expedition AT 18-07; observatories and experiments on the eastern flank of the Juan de Fuca Ridge
2012
Scientific Drilling
Integrated Ocean Drilling Program Management International, Sapporo; Washington, DC, International
13
4-11
Integrated 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.
English
Coverage:Geographic coordinates:
North:48.0000
West:-128.0000East: -127.3000
South:47.4000

Oceanography; Atlantic Expedition AT 18-07; boreholes; Circulation Obviation Retrofit Kit; CORK; crust; drilling; East Pacific; Expedition 327; expeditions; ground water; igneous rocks; Integrated Ocean Drilling Program; Juan de Fuca Ridge; marine drilling; North Pacific; Northeast Pacific; observatories; oceanic crust; Pacific Ocean; volcanic rocks; water-rock interaction;

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