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      IODP Expedition 321T: Cementing Operations at Holes U1301A and U1301B, Eastern Flank of the Juan de Fuca Ridge

      , IODP Expedition 321T Scientific Party
      Scientific Drilling
      International Ocean Discovery Program (IODP)

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          Borehole-to-borehole hydrologic response across 2.4 km in the upper oceanic crust: Implications for crustal-scale properties

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            Proceedings of the Ocean Drilling Program, 168 Initial Reports

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              Is Open Access

              Site surveys related to IODP Expedition 301: ImageFlux (SO149) and RetroFlux (TN116) expeditions and earlier studies: Expedition 301

              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.
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                Author and article information

                Journal
                Scientific Drilling
                Scientific Drilling
                International Ocean Discovery Program (IODP)
                1816-3459
                April 23 2010
                April 23 2010
                : 9, April 2010
                Article
                10.2204/iodp.sd.9.02.2010
                6f74b06e-eec8-4a37-b08b-0cd7a09cacb1
                © 2010
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