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ice age |
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Ice Age: see Pleistocene epoch Pleistocene epoch (plī`stəsēn), 6th epoch of the Cenozoic era of geologic time (see Geologic Timescale , table). ..... Click the link for more information. . ice ageor glacial ageAny geologic period during which thick ice sheets cover vast areas of land. Such periods of large-scale glaciation may last several million years and drastically reshape surface features of entire continents. A number of major ice ages have occurred throughout the Earth's history; the most recent periods were during the Pleistocene Epoch (1.8 million–10,000 years ago). How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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5 km wide, is in a depression carved out by repeated glaciations and partly owes its site to the melting of the last bit of glacial ice. Like any enigma in science, the Neoproterozoic glaciations have attracted their share of inventive, even oddball, theories. 1992; Crowell, 1999), with massive glaciations at these two maxima and their absence in the intermediate time interval. |
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