Which sediment sorting mechanism creates lateral moraine ridges along proglacial lake shorelines?

💡 Explanation

When seasonal meltwater streams enter a proglacial lake, sediment sorting occurs because the water velocity decreases rapidly. Large sediments deposit near the delta, and progressively finer sediments settle further into the lake resulting in moraine ridges on shore during low lake levels. Therefore, seasonal meltwater stream creates lateral moraines that result, rather than turbidity or tectonic sorting, which create varied stratigraphy throughout the lake.

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