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Original Articles

Glacial Geomorphology and Chronology of Henry Kater Peninsula, East Baffin Island, N.W.T.

Pages 195-212 | Published online: 25 May 2018
 

Abstract

Henry Kater Peninsula was ice covered at least between 34,000 and 10,000 BP. The ice advanced into the sea along the outer part of the peninsula, spreading a thin morainic covering over shell-bearing marine sediments. Ice moved inland from the fiords along the margins of the peninsula, while ice from inland covered the interior. Much of this ice decayed in situ, leaving extensive dead-ice areas. The sea was relatively high as the ice withdrew. The plane of the marine limit slopes down toward 083° from 50 m in the inner part of the peninsula to 25 m at the outer coast. Planes of synchronous isobases slope down toward 052°. Deglaciation took place at about 10,000 BP at the outer coast, at about 8,500 BP in Isabella Bay on the north side, and 8,000 BP in Itirbilung Bay on the south side. The last major incursion of fiord ice into the embayments along the inner peninsula took place between approximately 8,700 and 8,000 BP. This moraine may be contemporaneous with the Cockburn moraines. The ice-cored moraines of the present glaciers in the mountain valleys have been static for several years, but it is suggested that locally generated ice was more powerful and vigorous at an earlier period.

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