Glacial striation

Glacial grooves stemming from the Wisconsin glaciation at Kelleys Island, Ohio

Glacial striations are scratches or gouges cut into bedrock by glacial abrasion.These scratches and gouges were first recognized as the result of a moving glacier in the late 18th century when Swiss alpinists first associated them with moving glaciers. They also noted that if they were visible today that the glaciers must also be receding.

单词	Glacial striation
释义	Glacial striation 英语百科 Glacial striation Glacial striations are scratches or gouges cut into bedrock by glacial abrasion.These scratches and gouges were first recognized as the result of a moving glacier in the late 18th century when Swiss alpinists first associated them with moving glaciers. They also noted that if they were visible today that the glaciers must also be receding.
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