glacial abrasion

glacial abrasion

[¦glā·shəl ə′brā·zhən]
(geology)
Alteration of portions of the earth's surface as a result of glacial flow.
References in periodicals archive ?
The time elapsed since the initial grinding of the bedrock by glacial abrasion that produces rock flour, including the transport process and age of deposition, is defined as the comminution age of the sediment, and is determined by the relative degree of 234U-depletion in the samples.
5%), resulting from glacial abrasion and attrition of soft fine-grained bedrock (sandstones).
The bimodal grain-size distribution and extremely high silt content in the Upper Ugandi till are the result of glacial abrasion and attrition of soft, fine-grained Devonian bedrock (sandstones) (Haldorsen 1981).