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Expose Glacial-Valley Floor

Glacial-Valley Floor Exposed!

Glacial-Valley Floor Technical Terms

Glacial-Valley Floor: The comparatively flat bottom of a mountain valley predominantly mantled by till but which can grade from glacial scour (scoured rock-outcrop) near it’s head to a thick mantle of till, and ultimately merging with alluvium or colluvium further down valley. Some glacial-valley floors descend downstream in a series of scour-derived steps which may contain sequential tarn lakes (pater noster lakes); (not preferred: colloquial – western USA) sometimes called a trough bottom. SW

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