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| CATEGORIES ABOUT GLACIAL LANDFORMS | |
| glaciology | |
| mountain and glacial landforms | |
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EROSIONAL LANDFORMS As the glaciers expanded, due to their accumulating weight of Snow and Ice , they crushed and scoured surface Rocks and Bedrock . The resulting erosional landforms include Striation s, Cirques , Glacial Horn s, Arête s, U-shaped Valleys , Roches Moutonnées , and Hanging Valley s. DEPOSITIONAL LANDFORMS Later, when the glaciers retreated leaving behind their freight of crushed Rock and sand ( Glacial Drift ), they created characteristic depositional landforms. Examples include glacial Moraines , Esker s, and Kame s. Drumlin s are also landforms left behind by retreating glaciers. The stone walls of New England contain many Glacial Erratic s, rocks that were dragged by a glacier many miles from their Bedrock origin. GLACIAL LAKES AND PONDS Lakes and ponds can also be caused by glacial movement. Kettle Lake s form when a retreating glacier leaves behind an underground or surface chunk of ice that later melts to form a depression containing water. Moraine-dammed Lakes occur when a stream (or snow runoff) is dammed by glacial debris. Jackson Lake and Jenny Lake in Grand Teton National Park are examples of moraine-dammed lakes, although Jackson Lake is also enhanced by a man-made dam. EXTERNAL LINKS
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