Glacial Chattermarks

Glacial chattermarks on a rock in Bruce Peninsula National Park, Ontario, Canada. Chattermarks are made on bedrock by rock fragments carried along the bottom of a glacier

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Abrasion Bedrock Bruce Canadian Carved Chipped Effects Eroded Erosive Feature Glacial Glacially Glaciated Glaciation Glaciers Gouged Groove Grooving Mark Ontario Scoring Scoured Scouring Scratched

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