Physics
Scientific paper
Nov 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979esrv...15..185d&link_type=abstract
Earth Science Reviews, Volume 15, Issue 3, p. 185-212.
Physics
5
Scientific paper
Erosional and depositional features produced by lake ice occur in many lakes of temperate and cold regions. Ice-push ridges, grooves with a boulder at their head, ice-rafted sediments, boulder ridges, stone pavements, beach micro-relief, and destruction of shore vegetation, are features common to many lakes in the James Bay area, subarctic Quebec. However, the ice cover offers good protection against shore erosion by waves, during six months per year, permitting varve sedimentation. Ice-push ridges and grooves with a boulder at their head are the two most common ice-made features: 95 ice-push ridges, up to 7 m high, have been observed in 35 lakes, and grooves, up to 300 m long have been found in 81 sites from 69 lakes. These features resulted from ice movements caused either by ice expansion and wind action, at breakup. A review of the literature indicates that several factors must be considered in any investigation of ice action in the lacustrine environment.
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