Glacial Depositional Features
Glacial Till. Sierra Nevada, California. The unsorted
and unstratified nature of glacial till make it a distinctive deposit.
Outwash. Water, running off the mouth of the glacier, redistributes the glacial sediment. Floodplains of these rivers are called outwash plains. The sediment deposited by these rivers is generally very coarse.
Till plains. Vast areas of the northern midwest are covered by
till deposited by continental glaciers. Where the glaciers also left behind
large chunks of ice in the till, we now see kettle lakes. These lakes formed
because the ice eventually melted, leaving behind a depression. The lake-covered
till plain in the photo below is in central Minnesota.
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