| Term | Definition |
|---|
| Arete | A ridge that separates two adjoining cirques |
| Glacier | A large piece of ice that forms when snow collects and packs together, and hardens to form ice |
| Zone of Accumulation | Area where the snowfall accumulates and there is more gain in volume then there is lost (exceeds the snowline) |
| Zone of Wastage | Area of snowfall where the melting of ice succeds the accumulation |
| Glacial Budget | When the accumulation and wastage are equal |
| End Moraine | The till at the end of a glacier |
| Outwash Plain | Location beyond the end moraine, where drift accumulates |
| Ground Moraine | The till deposited from a retreating glacier |
| It advances | What happens to a glacier when the accummulation of a snow on a glacier exceeds the wastage |
| It stops moving | What happens to a glacier when the accumulation of snow on a glacier equals the amount of wastage |
| A horn | When three or more cirques meet and form a pyramid shape, this is formed |
| A drumlin | A long, canoe shaped mound of till formed by an advancing glacier |
| Cirque | A bowl shaped depression in the side of a mountain with steep sides |
| Alluvial Fans | A sloping deposit of sediment |
| Moraine | A mass of glacial till |
| Kettle | a depression formed by a block of ice that was buried and melted in an outwash plain |
| Esker | A ridge of sand and gravel that is formed by meltwater tunnels beneath a glacier |
| Continental Glacier | A glacier that expands from the outside edges, is very thick, and covers most, or a large part of an area |
| Valley Glacier | A long, slow moving piece of ice that travels down steep slopes |
| Drift | Any deposit from a glacier |
| Crevasses | Great fissures, or cracks that form when a valley glacier reaches a slope |
| Calving | When blocks of ice break off of a glacier and form icebergs |
| Ice Front | Area where a glacier melts as fast as it moves |
| Erratics | large boulders transported into an area by glaciers |
| Firn | Compacted and refrozen snow that hasn't become a glacier |
| Snow Line | The lowest permanent line of snow during the summer |
| Striations | Long scratches in bedrock caused by a moving glacier |
| Roches Moutonnees | A "sheep" rock that shows the direction that a glacier moved |
| Basal Slip | When a glacier moves because it's ice touches the ground |
| Lateral Moraine | Glacial deposit on the side of a valley glacier on valley walls |
| Cape Cod | What is a large terminal moraine in Massachusetts |
| Glacial Groove | A larger form of a Striation |
| Ice Shelves | Large continental glaciers that expand into the ocean |
| Oceans | Glaciers cannot move across... |
| 30% | How much land was covered in the last ice age? |
| Hanging | A ______ Valley is a valley that has a higher floor than the main valley |
| U | A ______ shaped valley is a valley that has steep sides and a flat bottom |
| Meltwater | Water from a glacier that is melting |
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