Glacial features of the Børglum Elv region, eastern North Greenland

Abstract

Lauge Koch recognised in 1921 that the Inland Ice had not overwhelmed all of North Greenland during the Glacial Epoch and, although his data were few, he suggested a generalised probable outward extent of the former ice cap (Koch, 1923, fig. 2). The mapping of the outward limit was based on the identification of erratics of rocks unique to parts of the present northern margin of the Inland Ice. Field work by Troelsen (1952) confirmed the existence of the limit in the vicinity of BØrglum Elv. Data collected in 1974 suggest that Koch's line, in the Børglum Elv region at least, was well located, but that the boundary relationships may be complex due to overlapping of limits of ice from the south and the north.