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GLACIOLOGICAL STUDIES ON FLETCHER'S ICE ISLAND (T-3)
ARCTIC INST OF NORTH AMERICA WASHINGTON D C
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Glaciological studies were made on T-3 of the ablation phenomena the nature of candle ice, including c-axes distribution and histograms of candle lengths the structure of stratified ice ice composed of an aggregate of fairly large crystals with small-angle boundaries and the crystallographic orientation of aggregates of component crystals. Core drilling was done through 34.7m of ice near camp, through 7.5m near Colby Bay, and through 4m-thick old pack ice in the Bay. A heavy dirt layer was observed at 8.4m. Crystallographic examinations, viscoelastic measurements, and chemical analyses were made all along the cores. Results indicate that the island body is composed of three strata iced firn above the heavy dirt layer basement ice divided into four strata below the dirt layer and a 1.8m-thick sea ice at the bottom.
APPROVED FOR PUBLIC RELEASE