Clathrate Hydrates of Air in Antarctic Ice

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Science  01 Aug 1969:
Vol. 165, Issue 3892, pp. 489-490
DOI: 10.1126/science.165.3892.489


Measurements of the dissociation pressure of nitrogen hydrate and oxygen hydrate show that the clathrate hydrate of air with the formula (N2, O2) 6H2O should exist below about 800 meters in the Antarctic ice sheet. This accounts for the disappearance of gas bubbles at depths greater than 1200 meters. The hydrate should exist from this depth to prise 0.06 percent of the ice.

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