Site surveys related to IODP Expedition 301; ImageFlux (S0149) and RetroFlux (TN116) expeditions and earlier studies

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doi: 10.2204/iodp.proc.301.102.2005
Author(s): Zühlsdorff, L.; Hutnak, Michael; Fisher, Andrew T.; Spiess, V.; Davis, Earl E.; Nedimovic, M.; Carbotte, S.; Villinger, H.; Becker, Keir
Integrated Ocean Drilling Program, Expedition 301 Scientists, College Station, TX
Author Affiliation(s): Primary:
University of Bremen, Department of Geosciences, Bremen, Federal Republic of Germany
Other:
University of Tokyo, Japan
Texas A&M University, United States
Lamont-Doherty Earth Observatory, United States
Universität Bremen, Federal Republic of Germany
University of Miami, United States
University of Southampton, United Kingdom
Stockholm Universitet, Sweden
Carl von Ossietzky Universität Oldenburg, Federal Republic of Germany
Kyoto University, Japan
Western Washington University, United States
San Jose State University, United States
Japan Agency of Marine-Earth Science and Technology, Japan
Kyushu University, Japan
University of North Carolina at Chapel Hill, United States
Oregon State University, United States
University of Ryukyus, Japan
Kochi University, Japan
University of Bergen, Norway
NURP/MLML Marine Operations, United States
Green Mountain Union High School, United States
University of California, Santa Barbara, United States
Geological Survey of Canada, Canada
Volume Title: 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
Volume Author(s): 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
Source: 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, Andrew T. Fisher, Tetsuro Urabe, Adam Klaus, Gerardo J. Iturrino, Anne C. M. Bartetzko, Keir Becker, Rosalind Coggon, Marion Dumont, Bert Engelen, Shusaku Goto, Lisa Hawkins, Verena Heuer, Samuel Mark Hulme, Michael Hutnak, Fumio Inagaki, Shoichi Kiyokawa, Mark Alexander Lever, Satoshi Nakagawa, Mark Edward Nielsen, Takuroh Noguchi, William W. Sager, Masumi Sakaguchi, Bjorn Olav Steinsbu, Takeshi Tsuji, Charles Geoffrey Wheat and Jonathan Rice; Integrated Ocean Drilling Program, Expedition 301 Scientists, College Station, TX. Proceedings of the Integrated Ocean Drilling Program, Vol.301, 48p. Publisher: IODP Management International, Washington, DC, United States. ISSN: 1930-1014
Note: In English. 56 refs.; illus., incl. sects., sketch maps
Summary: Integrated Ocean Drilling Program Expedition 301 was preceded during 2000 and 2002 by three surveys that helped to delineate seafloor and basement relief, sediment thickness, and the nature of ridge-flank hydrothermal conditions and processes on the eastern flank of the Juan de Fuca Ridge. These surveys generated swath map, seismic, and thermal data used to select locations for primary and secondary drilling targets, building from several decades of earlier work. We show compilations and examples of data from several characteristic settings in and around the Expedition 301 work area and use these observations to evaluate sedimentation patterns and thermal conditions in basement. There remain important unanswered questions in this area concerning fluid circulation within the upper oceanic crust, the magnitude of lithospheric heat input, the quantitative significance of advective heat loss from the crust, and relations between basement relief, sedimentation, and sediment alteration. These questions may be resolved through collection of a modest amount of additional data focusing on a few critical locations.
Year of Publication: 2004
Research Program: IODP Integrated Ocean Drilling Program
Key Words: 07 Marine Geology and Oceanography; 20 Geophysics, Applied; Circulation; Cores; Crust; East Pacific; Expedition 301; Fluid dynamics; Geophysical methods; Geophysical profiles; Geophysical surveys; Heat flow; Hydrothermal conditions; ImageFlux; Integrated Ocean Drilling Program; Juan de Fuca Ridge; Marine sediments; North Pacific; Northeast Pacific; Ocean floors; Oceanic crust; Pacific Ocean; RetroFlux; Sea water; Sediments; Seismic methods; Seismic profiles; Surveys; Thermal properties
Coordinates: N474500 N474600 W1274500 W1274600
Record ID: 2007101810
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