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During the last glacial maximum (LGM), lake-ice conveyors transported glacial debris across the surface of large proglacial lakes in the Dry Valleys region of Antarctica. The resulting sediments and landform assemblages are keys to interpreting the glacial history of the Dry Valleys and, potentially, other areas of Antarctica. Paleoconveyor deposits occur in Taylor, Miers, Wright, and Victoria Valleys,...
Surficial deposits in eastern and central Wright Valley, Antarctica, record multiple inland incursions of grounded ice from the Ross Sea Embayment. Glacial geologic mapping, coupled with 42 AMS 14 C dates of lacustrine algae and 10 40 Ar/ 39 Ar dates of basalt erratics, indicate westward ice expansion at least eight times during the Pliocene and Quaternary. The...
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