Chemical and isotope composition of poor fluid from gas-hydrate samples of ODP Site 146-892, supplement to: Kastner, Miriam; Kvenvolden, Keith A; Lorenson, Thomas D (1998): Chemistry, isotopic composition, and origin of a methane-hydrogen sulfide hydrate at the Cascadia subduction zone. Earth and Planetary Science Letters, 156(3-4), 173-183

Miriam Kastner, Keith A Kvenvolden & Thomas D Lorenson
Although the presence of extensive gas hydrate on the Cascadia margin, offshore from the western U.S. and Canada, has been inferred from marine seismic records and pore water chemistry, solid gas hydrate has only been found at one location. At Ocean Drilling Program (ODP) Site 892, offshore from central Oregon, gas hydrate was recovered close to the sediment-water interface at 2-19 m below the seafloor (mbsf) at 670 m water depth. The gas hydrate occurs...
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