Isua, Greenland: Glaciological Investigations during 1973.

• Main Authors: Colbeck,Samuel C., Gow,Anthony J.
• Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H
• Format: Text
• Language: English
• Published: 1974
• Subjects: Snow; Ice and Permafrost; *Glaciers; *Greenland; Petrography; Temperature; Land ice; Isua(Greenland); Greenland; Ice; Ice cap; Ice Sheet; permafrost
• Online Access: http://www.dtic.mil/docs/citations/AD0776946; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0776946

Two holes were drilled through the Greenland ice sheet during 1973 and temperature measurements were made in one hole drilled during 1972. These measurements show that the area of liquid water beneath the ice cap extends to ice depths as shallow as 100 m. The consequences of removing the frozen margin of glacial ice could be serious and more temperature measurements are needed to exactly locate the subglacial water. Petrographic studies of a few ice cores revealed a strongly oriented crystal fabric and an appreciable surface accumulation of superimposed ice. (Author)