Publication Date:
1976-01-01
Description:
Oxygen-isotope ratios indicate that a distinctive band of white ice along the margin of the Barnes Ice Cap is of Pleistocene age. It is estimated freom a flow mogerl that beneath the center of the ice cap the thickness of the band shuuld be abont 0.6 times its thickness at the margin, or about 8 m. However, an ingerpengernt estimate, based on calculated vertical strain-rates and explicitly assuming no basal melting, predicts a thickness of about 22 m beneath the center of the ice cap. The discrepancy between the two thickness estimates is interpreted as indicating that basal melting has occurred. Calculated basal temperatures support this conclusion.
Print ISSN:
0022-1430
Electronic ISSN:
1727-5652
Topics:
Geography
,
Geosciences