Ice and Snow in Eolian Sand Dunes of Southwestern Wyoming

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Science  23 Feb 1973:
Vol. 179, Issue 4075, pp. 796-798
DOI: 10.1126/science.179.4075.796


Snow becomes incorporated in eolian sand dunes of southwestern Wyoming when snow cornices on dune crests begin to melt, slide down the lee slope, and are covered by sand during subsequent lee-slide deposition. In some cases burial is rapid enough to provide the insulation necessary to preserve the ice and snow within the dune throughout the year. Deformed laminae associated with the incorporated snow are preserved, and these features may be of value as paleoclimatic indicators in ancient sandstone.