Becker, Keir; Davis, Earl E. (2004): A review of CORK designs and operations during the Ocean Drilling Program. IODP Management International, Washington, DC, United States, In: 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 2004, 301, georefid:2007-101812

This paper provides a review of 1989-2003 designs and operations of the 20 Circulation Obviation Retrofit Kit (CORK) long-term subseafloor hydrogeological observatories installed in 18 holes during the Ocean Drilling Program (ODP). The basic configurations of the four models of CORKs developed during the ODP period are summarized: the original single-seal CORK (14 installations in 12 holes, 1991-2001) and three multilevel models, including the Advanced CORK or ACORK (2 installations, 2001), a wireline instrumented multipacker system or wireline CORK (2 installations, 2001), and the CORK-II (2 installations, 2002). The evolution of the scientific instrumentation installed in ODP CORKs and the history of postinstallation submersible operations are described. This instrumentation was provided by scientists with support of national ODP research funding, which also supported the extensive submersible time devoted to postinstallation data downloads and instrument servicing. Although the purpose of this paper does not include a review of CORK scientific results, we offer some comments on scientific lessons learned during the ODP CORK effort. We describe the funding and engineering support structure that held for the ODP CORK installations and close with some comments on the importance of engineering support for the Integrated Ocean Drilling Program goals involving long-term borehole observatories. We also provide a complete bibliography of CORK-related literature through 2004 and all of the data sets in digital form collected through 2003 from the six ODP CORK installations installed in either 1991 or 1996 near the Juan de Fuca Ridge, of which all but one are still in service.
West: -127.4600 East: -127.4500 North: 47.4600 South: 47.4500
Expedition: 301
Supplemental Information:
Includes appendix and erratum
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