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E.S Review 4/20/23
| Term | Definition |
|---|---|
| Glacier | naturally formed mass of ice and snow that moves downhill under the force of gravity |
| Continental Glaciers | huge sheets of ice that cover entire land masses |
| Valley Glaciers | glaciers that form in high elevations in mountain valleys |
| U-shaped valleys | shape of the valley walls from glacial erosion |
| Till | unsorted sediment deposited by a glacier |
| Erratics | large deposited fragments that can be transported hundreds of miles inside or on top of the glacier |
| Drumlins | streamlines oval shaped mountains of till (sediment) |
| Eskers | a long winding ridge of till |
| Terminal Moraines | a mound of till deposited along the leading edge of a glacier |
| Glacial Grooves / Striations | long parallel scratches formed by sediment embedded in a glacier that has passed over the surface and indicate the direction of travel |
| Kettle Lake | depression left in the ground that is filled with glacial melt water |
| Outwash Plain | broad feature of smaller sediment carried from the melting water of a retreating glacier |