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GEOPHYSICAL RESEARCH LETTERS,
VOL. 30, NO. 9,
1451,
doi:10.1029/2002GL016802,
2003
Nucleation of gas hydrate in marine environments
O. Y. Zatsepina
Department of Earth and Ocean Sciences,
University of British Columbia,
Vancouver,
British Columbia,
Canada
B. A. Buffett
Department of Earth and Ocean Sciences,
University of British Columbia,
Vancouver,
British Columbia,
Canada
Abstract
An extrapolation of parameters from an experimental study of CO2-hydrate nucleation in porous media is used to describe the nucleation of CH4 hydrate under conditions found below the seafloor. The requirements for nucleation can significantly delay the onset of hydrate
formation when CH4-bearing liquids rise into the hydrate stability zone. Hydrate may not form at all if the vertical extent of the stability
zone is too narrow to achieve sufficient cooling below equilibrium temperature. This is particular relevent in shallow water
or at times in the Earth's past where the ocean floor was warmer than today.
Published 2
May
2003.
Index Terms: 3022 Marine Geology and Geophysics: Marine sediments—processes and transport; 3939 Mineral Physics: Physical thermodynamics; 4558 Oceanography: Physical: Sediment transport.
Read Full Article (file size: 107953 bytes) Cited by
Citation: Zatsepina, O. Y., and B. A. Buffett
(2003),
Nucleation of gas hydrate in marine environments,
Geophys. Res. Lett.,
30(9),
1451,
doi:10.1029/2002GL016802.
Copyright 2003 by the American Geophysical Union.
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