Ice Age

Ice Age

Ice Age: see Pleistocene epoch.
or glacial age

Any 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).

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