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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...

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Publicado en:Smithsonian Vol. 24; no. 5; pp. 12 - 15
Autor principal: Trefil, James
Formato: Artículo
Publicado: Smithsonian Magazine Aug93
Acceso en línea:Ver este registro en EBSCOhost
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      ab: 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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