chapter 17 vocabulary
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| glacier | large mass of moving ice
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| alpine glacier | narrow, wedge-shaped mass of ice that forms in a mountainous region and is confined to a small area by surrounding topography
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| continental glacier | massive sheet of ice that may cover millions of square kilometers, may be thousands of meters thick, that isn't confined by surrounded topography
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| basal slip | process that lubricates a glacier's base and causes the glacier to slide forward
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| internal plastic flow | process by which glaciers flow slowly as grains of ice deform under pressure and slide over each other
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| crevasse | in a glacier, a large crack or fissure that results from ice movement
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| cirque | a deep and steep bowl-like depression produced by glacier erosion
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| arête | a sharp, jagged ridge that forms between cirques
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| horn | a sharp, pyramid-like peak that forms because of erosion of cirques
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| erratic | a large rock that's transported from a distant source by a glacier
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| glacial drift | rock material carried by glaciers and deposited by glaciers
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| till | unsorted rock material that's deposited directly by a melting glacier
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| moraine | landform that's made from unsorted sediments deposited by a glacier
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| kettle | bowl-shaped depression in a glacial drift deposit
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| esker | long, winding ridge of gravel and coarse sand deposited by glacial meltwater streams
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| ice age | long period of climatic cooling during which continents are glaciated repeatedly
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| Milankovitch theory | theory that cyclical changes in Earth's orbit and in tilt of Earth's axis occur over thousands of years and cause climatic changes
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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