A comparison of joints in bedrock and fractures in overlying Pleistocene lacustrine deposits, central Alberta

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Abstract
A comparison of bedrock joints with fractures in outcrops of fine-grained Quaternary glaciolacustrine deposits indicates that fractures in the lacustrine sediments are not related to underlying bedrock joints. Fractures in the silts are caused by an exfoliation type of weathering occurring at the outcrop face. They are not reliable indicators of a possible fracture fabric pervading the deposit away from the outcrop scarps.

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