CGRG Bibliography of Canadian Geomorphology
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Author : Blake, Jr., W.
Date : 2001.
Title : Interstadial environments around northernmost Baffin Bay.
Publication : Canadian Quaternary Association/ Association canadienne pour l'etude du Quaternaire, Annual Meeting 2001. Whitehorse, Yukon Territory, August 20 – 24, 2001.
Issue :
Page(s) :
Abstract
Fieldwork around northernmost Baffin Bay has revealed the widespread occurrence of an older generation of marine deposits beneath Holocene sediments and raised beaches. These sediments are separated from those of Holocene age by till-like or nonfossiliferous units. Three sites studied and dated in detail are: Cape Storm, southern Ellesmere Island; Coburg Island at the entrance to Jones Sound; and Saunders Island, Greenland – subarctic Mytilus edulis occurs at the last two localities. Another site is beside Glacier 7A-45, a westward-flowing outlet glacier from Ellesmere’s Prince of Wales Icefield. Datable terrestrial materials occur in sub-till sediments. If this inland site became ice-free in mid-Wisconsinan time, the adjacent Baffin Bay coasts must have become deglacierized also. The age ranges for pre-Holocene deposits are: Cape Storm, 20 000 and 50 000 14C years; Coburg Island, 25 000 to 46 000 14C years; Saunders Island, 38 000 to 46 000 14C years; and Glacier 7A-45, 20 000 to 43 000 14C years. The results on wood, sedges and mosses from the inland site support the finite ages on marine mollusc shells, marine algae, whale bone, bird bones, and other constituents from the coastal deposits. All are assigned to the Cape Storm Nonglacial Interval.
Bibliography of Canadian Geomorphology