Ice Age

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Ice Age:

see Pleistocene epochPleistocene epoch
, 6th epoch of the Cenozoic era of geologic time (see Geologic Timescale, table). According to a classification that considered its deposits to have been formed by the biblical great flood, the epoch was originally called the Quaternary.
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Ice Age

 

a relatively long stage in the geological history of the earth during which, against the background of a general relative cooling of the climate, there was repeated alternation of very cold intervals of time (glacials), when extensive continental glaciation occurred, and intervals of time with a warmer climate (interglacials), when a significant part of the continental ice melted. Ice ages have been established in the Lower Proterozoic in North America; in the Upper Riphean in Africa and Australia; in the Wend in Europe, Asia, and North America; in the Ordovician of Africa; and at the end of the Carboniferous and the beginning of the Permian on the continent of Gondwana. The ice age of the Pleistocene has been studied most.

ice age

[′īs ‚āj]
(geology)
A major interval of geologic time during which extensive ice sheets (continental glaciers) formed over many parts of the world.

Ice Age

[′īs ‚āj]
(geology)
References in periodicals archive ?
Magdalenian man has left us evidence of the fauna, which he himself helped to wipe out, completing the work of Neanderthal man before him, and adding to the effects of the climatic changes of the final glacial stage on animals that had adapted to habitats, only to see them progressively change until they were completely transformed.