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Kimmet Chap. 7
Prentice Hall 2006
| Question | Answer |
|---|---|
| period of time when much of Earth's land is covered by glaciers | ice age |
| thick mass of ice originating on land from the compaction and recrystallization of snow that shows evidence of part or present flow | glacier |
| lowest elevation in a particular area that remains covered in snow all year | snowline |
| glacier confined to a mountain valley, which in most instances had previously been a stream valley; also known as an alpine glacier | valley glacier |
| layer of ice covering an extensive area of land, such as Antarctica or Greenland | ice sheet |
| U-shaped valley formed by a glacier moving down a valley once occupied by a stream | glacial trough |
| sediment of different sizes deposited directly by a glacier | till |
| sediment laid down by glacial meltwater that contains particles sorted according to size and weigh | stratified drift |
| ridge of unsorted sediment left by a glacier | moraine |
| fan-shaped deposit of sediment formed when a stream's slope is abruptly reduced | alluvial fan |
| flat area on the floor of an undrained desert basin that fills and becomes a lake after heavy rain | playa lake |
| lifting and removal of loose material by wind | deflation |
| layer of coarse pebbles and gravel created when wind removed the finer material | desert pavement |
| deposits of windblown silt, lacking visible layers, generally light yellow, and capable of maintaining a nearly vertical cliff | loess |
| hill or ridge of wind-deposited sand | dune |