Glacial Formations


	Deposition	Freeze Thaw
	Lodgement Till: Material deposited by advancing ice	Water enters cracks in rocks, freezes and expands Ice melts, travels further down the rocks, freezes and expands again This process keeps occurring, eventually causing the rock to break up
	Frost Shattering	Pressure Release
	Existing water in the rock pores freezes and expands causing the rock to break up	Overlying ice melts, resulting in the underlying rock expanding and freezing due to the decline in pressure

Existing water in the rock pores freezes and expands causing the rock to break up

Overlying ice melts, resulting in the underlying rock expanding and freezing due to the decline in pressure

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