CGRG Bibliography of Canadian Geomorphology
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Author : Eyles, N.; and Scheidegger, A.E.
Date : 1999.
Title : Neotectonic jointing control on Lake Ontario shoreline orientation at Scarborough, Ontario
Publication : Geoscience Canada
Issue : 26(1):
Page(s) : 27-30.
Abstract
Many parts of the coastline of Lake On-tario and other Great Lakes consist of long linear sections, commonly made up of tall cliffs cut into Pleistocene-aged glacial sediments. Scarborough Bluffs on Lake Ontario east of Toronto is such a shoreline. Study of the orientation of subaerial and subaqueous joints in both Pleistocene-aged sediments and Ordovician-aged bedrock in the Scarborough Bluffs area indicates that joint orientation in the Pleistocene sediments compares closely with that of the Ordovician bedrock. This observation supports the con-clusion that it is neo-tectonic jointing in Pleistocene sediments that controls the orientation of the cliffed shoreline and the associated creeks in the Scar-bor-ough Bluffs area.
Bibliography of Canadian Geomorphology