Glacial Formations


	Sudes	Plucking
	Internal structure of slope is weakened	Meltwater seeps into valley floor cracks, freezes, becomes attached to the glacier Glacier advances, pulling pieces of rocks away
	Abrasion	Nivation
	Rocks on the bottom of the glacier scrape along the valley floor, breaking it up and removing material	Ice grows into underlying rock Area of rock loosens, and its dragged away by the glacier

Meltwater seeps into valley floor cracks, freezes, becomes attached to the glacier
Glacier advances, pulling pieces of rocks away

Rocks on the bottom of the glacier scrape along the valley floor, breaking it up and removing material

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