Be ages of late Pleistocene deglaciation and Neoglaciation in the north-central Brooks Range, Arctic Alaska


We present a chronology of late Pleistocene deglaciation andNeoglaciation for two valleys in the northcentral Brooks Range, Alaska, using cosmogenic Be exposure dating. The two valleys show evidence of ice retreat from the northern range front before 16–15 ka, and into individual cirques by 14 ka. There is no evidence for a standstill or re-advance during… (More)


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