CGRG Bibliography of Canadian Geomorphology
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Author : Gilbert, R.
Date : 2000.
Title : A Pleistocene frost-heaved dome in palaeozoic limestone at Kingston, Ontario, Canada.
Publication : Permafrost and Periglacial Processes
Issue : 11(3):
Page(s) : 259-265.
Abstract
A dome in Palaeozoic limestone at Kingston is 7.5 m in diameter as revealed in a roadcut and about 11 m at its maximum as indicated by ground-penetrating radar. The centre has been displaced 1.5 m upward in the exposure and up to 2.5 m internally in a circular arch. The dome appears to be roughly circular in plan and up-arching of the limestone extends to about 17 m depth. The dome has been eroded to a nearly plane surface by glaciation as indicated by striations on limestone blocks at the surface. Based on similarity of form to features in modern periglacial environments, the dome is proposed to have originated by frost heaving of bedrock before the late Wisconsinan glaciation of southern Ontario. This is the first report of such a feature, and recognition of their occurrence in formerly periglacial regimes should provide a useful tool in palaeoenvironmental reconstruction.
Bibliography of Canadian Geomorphology