Phenomena, comment and notes.
Examines the Earth's temperature changes, and notes that layering of rocks and pebbles show that glaciers moved down across Canada and the northern United States every 7,000 years or so. Sediments that show that the temperature of the North Atlantic dropped as much as ten degrees Fahrenheit in 50 y...
| Published in: | Smithsonian Vol. 24; no. 5; pp. 12 - 15 |
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| Main Author: | |
| Format: | Article |
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Smithsonian Magazine
Aug93
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| Online Access: | View this record in EBSCOhost |
| Summary: | Examines the Earth's temperature changes, and notes that layering of rocks and pebbles show that glaciers moved down across Canada and the northern United States every 7,000 years or so. Sediments that show that the temperature of the North Atlantic dropped as much as ten degrees Fahrenheit in 50 years; Work of Douglas MacAyeal (University of Chicago) on ice sheets and glaciers; Studying the ice sheets of Antarctica. |
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