Which process dictates glacial lake outburst floods depositing poorly-sorted material downstream in many mountainous regions?

💡 Explanation

When glacial lakes breach their moraine dams, a high-magnitude debris flow occurs because a large volume of water and sediment are rapidly released and mixed. Therefore, high magnitude debris flow propagation dictates the deposition, rather than snow melt, isostatic rebound, or compaction which influence sediment volumes gradually across the year.

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