GLACIAL AND SEA-LEVEL HISTORY OF SOUTHWESTERN CUMBERLAND PENINSULA, BAFFIN ISLAND, NWT, CANADA

Southwestern Cumberland Peninsula has been glacierized at various times by eastward-flowing Laurentide ice, by an expanded Penny Ice Cap, and by fiord and valley glaciers fed from cirques. During the Duval Stade (c100 000 to 60 000 yr BP), Laurentide ice filled the inner one-third of Cumberland Sound and ice from local sources filled Pangnirtung and Kingnait fiords. Relative sea level was 100m above present at the ice margin (Duval marine limit). Much of the area was glacierized during the Outer Usulauk Stade (c40 000 yr BP?) when relative sea level was 108 to 120m above present at the ice margin (Shark marine limit). The Holocene marine limit forms a synchronous strandline declining beyond the Ranger Moraine and intersects present sea level about 100km beyond the Laurentide margin. The zero isobase on emergence has migrated about 100km westward since 8700 yr BP.-from Authors