POST-GLACIAL TILTING OF AKPATOK ISLAND, NORTHWEST TERRITORIES

Late glacial deposits on Akpatok Island are described. They include a major moraine system and numerous raised shore features. A survey of the marine limit at several locations shows that subsequent to its formation the island has been tilted up toward the southwest. The isobases trend 313 degree true and the former sea surface rises to the southwest at a rate of 0. 62 m/km. The late glacial chronology is vague due to the absence of C-14 dates with clear chronological significance. The moraine system is tentatively correlated to the Kangalaksiorvik Phase of northernmost Labrador.