Glacial Features and Pingos, Amund Ringnes Island, Arctic Archipelago

Evidence of widespread glaciation of Amund Ringnes Island includes: northwestward-striking grooves and striations in bedrock at three widely separated localities and at elevations of about 60 m, 150 m, and 230 m; and abundant striated erratics, including granite and gneissic rocks. Isolated, sinuous...

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Bibliographic Details
Published in:Canadian Journal of Earth Sciences
Main Authors: Balkwill, H. R., Roy, K. J., Hopkins, W. S., Sliter, W. V.
Format: Article in Journal/Newspaper
Language:English
Published: Canadian Science Publishing 1974
Subjects:
Online Access:http://dx.doi.org/10.1139/e74-124
http://www.nrcresearchpress.com/doi/pdf/10.1139/e74-124
Description
Summary:Evidence of widespread glaciation of Amund Ringnes Island includes: northwestward-striking grooves and striations in bedrock at three widely separated localities and at elevations of about 60 m, 150 m, and 230 m; and abundant striated erratics, including granite and gneissic rocks. Isolated, sinuous deposits of boulder gravel may be eskers. Dated barnacle shells at approximately 30 m and 35 m above sea level indicate that significant rebound has occurred in the last 8000 to 8500 years, following removal of the ice load.A cluster of small, but well-developed pingos lies on a nearly flat, featureless plain in the central part of the island.