Research topic: Ice Age

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Ice Age

A Dictionary of Biology

ice age A period in the earth's history during which ice advanced towards the equator and a general lowering of temperatures occurred. The last major ice age, that of the Pleistocene period (sometimes known as the Ice Age ), ended about 10 000 years ago. At least four major ice advances (glacials) occurred during the Pleistocene period; these were ...

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ice ages

ice ages Repeated fluctuations between warm (interglacial) and cold (ice age or glacial) climates have characterized the palaeoclimate of the past 2.5 million years(the Quaternary). Other geological periods when ice ages occurred include the Permo-Carboniferous (250 million years ago), the ...

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ice age

[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 ...

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