Edwards, Katrina J. et al. (2012): Design and deployment of borehole observatories and experiments during IODP Expedition 336, Mid-Atlantic Ridge flank at North Pond

IODP 336
IODP 336 395
IODP 336 U1382
IODP 336 U1383


Edwards, Katrina J.
University of Southern California, Department of Biological Sciences, Los Angeles, CA, United States

Wheat, C. Geoffrey
University of Bremen, Germany

Orcutt, Beth N.
Texas A&M University, United States

Hulme, Samuel M.
University of Leicester, United Kingdom

Becker, Keir
Universite des Sciences et Technologies de Lille 1, France

Jannasch, H.
University of Miami, United States

Haddad, Amanda G.
U. S. Geological Survey, United States

Pettigrew, T.
Geological Survey of Japan, Japan

Rhinehart, W.
Japan Agency for Marine-Earth Science and Technology, Japan

Grigar, K.
Moss Landing Marine Laboratories, United States

Bach, Wolfgang
Universitetet i Bergen, Norway

Kirkwood, W.
University of Rhode Island, United States

Klaus, Adam
Institut de Physique du Globe de Paris, France

Design and deployment of borehole observatories and experiments during IODP Expedition 336, Mid-Atlantic Ridge flank at North Pond
In: Edwards, Katrina J., Bach, Wolfgang, Klaus, Adam, Anderson, Louise, Backert, Nicolas, Becker, Keir, Griffin, Dale W., Haddad, Amanda G., Harigane, Yumiko, Hirayama, Hisako, Hulme, Samuel M., Jorgensen, Steffen Leth, Insua, Tania Lado, Le Campion, Paul, Mills, Heath J., Nakamura, Kentaro, Orcutt, Beth N., Park, Young-Soo, Rennie, Victoria, Rouxel, Olivier, Russel, Joseph A., Sakata, Kasumi, Salas, Everett C., Wang Fengping, Wheat, C. Geoffrey, Proceedings of the Integrated Ocean Drilling Program; Mid-Atlantic Ridge microbiology; initiation of long-term coupled microbiological, geochemical, and hydrological experimentation within the seafloor at North Pond, western flank of the Mid-Atlantic Ridge; Expedition 336 of the riserless drilling platform; Bridgetown, Barbados, to Ponta Delgada, Azores (Portugal), Sites 395 and U1382-U1384, 16 September-16 November 2011
IODP Management International, Washington, DC, United States
During Integrated Ocean Drilling Program (IODP) Expedition 336 to North Pond on the western flank of the Mid-Atlantic Ridge (8 Ma crust) in the late fall of 2011, borehole observatories were installed in IODP Holes U1382A and U1383C and Deep Sea Drilling Project Hole 395A. These borehole observatories are designed for long-term (multiyear) coordinated hydrogeological, geochemical, and microbiological monitoring and experimentation to understand the nature of life, fluid flow, and fluid-rock interactions in young and cool oceanic crust. Additional related activities during Expedition 336 included recovery of an instrument string that was deployed within an earlier generation of a circulation obviation retrofit kit (CORK) observatory in Hole 395A and preparation of IODP Hole U1383B, which was drilled, cased, and left open during Expedition 336, for a future deployment of a borehole observatory. A streamlined CORK observatory was deployed in Hole U1383B during a remotely operated vehicle-supported cruise in April 2012. An additional CORK servicing cruise is scheduled for 2013. Here, we summarize the observatory project goals and provide an overview of the design, construction, and deployment of these CORKs and related instrumentation during Expedition 336. We also summarize the project goals, design, and construction for the CORK-lite installation in Hole U1383B and discuss plans for its deployment. CORK servicing plans for 2012 and 2013 also are presented.
Coverage:Geographic coordinates:
West:-46.0454East: -46.0310

Oceanography; Atlantic Ocean; boreholes; Circulation Obviation Retrofit Kits; CORK; crust; design; dissolved oxygen; drilling; DSDP Site 395; Expedition 336; fluid phase; instruments; Integrated Ocean Drilling Program; IODP Site U1382; IODP Site U1383; marine drilling; marine methods; Mid-Atlantic Ridge; North Atlantic; observatories; Ocean Drilling Program; oceanic crust; oxygen; sampling; solutes; temperature;