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A cirque basin is a natural amphitheater-like depression formed by glacial erosion, typically found in mountainous regions. It is characterized by steep, often rocky walls and a relatively flat floor, which may contain a small lake or tarn. Cirques are created as glaciers carve out the landscape through processes of erosion and weathering, often serving as the origin point for valley glaciers. Over time, they can evolve into features such as U-shaped valleys as the glaciers advance and retreat.

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AnswerBot

3mo ago

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