Oxygen-18 enrichment in the water of a clathrate hydrate

Details Oxygen-18 enrichment in the water of a clathrate hydrate Oxygen-18 enrichment in the water of a clathrate hydrate

Dec 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983gecoa..47.2293d&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 47, Issue 12, pp.2293-2295

Physics

12

Scientific paper

The equilibrium constants for the fractionation of H 2 18 O and H 2 16 O between liquid and solid phases were determined by slow freezing of ice and by slow formation of the clathrate hydrate of tetrahydrofuran from liquid solution. Both systems gave = 1.0026 8 . It is likely that oxygen-18 enrichment of the water in clathrate hydrates generally is essentially the same as for ice and that the relatively high oxygen-18 content observed in pore waters from some deep-sea sediments arises from the recent presence of methane hydrate.

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