K/Ar age determinations from western Greenland

Abstract

A programme of K/Ar age determinations on the rocks of western Greenland from Upernavik (72°50' N) to Kap Farvel (59°40' N) has been started and the first results are presented below. The samples used in this first group of results have been selected so that the date obtained would represent the most significant geological event in each area and samples from areas in which the geological history is known to be highly complex have been avoided wherever posslble. The geological interpretation of the results has been the responsibility of the individual geologists who supplied the samples while the overall geological history outlined in this compilation is that current among members of the Geological Survey of Greenland.