Peculiarities of Methane Clathrate Hydrate Formation and Solid-State Deformation, Including Possible Superheating of Water Ice

  • Laura A. Stern
    L. A. Stern and S. H. Kirby, U.S. Geological Survey, Menlo Park, CA 94025, USA.
  • Stephen H. Kirby
    L. A. Stern and S. H. Kirby, U.S. Geological Survey, Menlo Park, CA 94025, USA.
  • William B. Durham
    W. B. Durham, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA.

書誌事項

公開日
1996-09-27
DOI
  • 10.1126/science.273.5283.1843
公開者
American Association for the Advancement of Science (AAAS)

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説明

<jats:p>Slow, constant-volume heating of water ice plus methane gas mixtures forms methane clathrate hydrate by a progressive reaction that occurs at the nascent ice/liquid water interface. As this reaction proceeds, the rate of melting of metastable water ice may be suppressed to allow short-lived superheating of ice to at least 276 kelvin. Plastic flow properties measured on clathrate test specimens are significantly different from those of water ice; under nonhydrostatic stress, methane clathrate undergoes extensive strain hardening and a process of solid-state disproportionation or exsolution at conditions well within its conventional hydrostatic stability field.</jats:p>

収録刊行物

  • Science

    Science 273 (5283), 1843-1848, 1996-09-27

    American Association for the Advancement of Science (AAAS)

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