glacial period


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Related to glacial period: ice age, Interglacial period

glacial period

1. any period of time during which a large part of the earth's surface was covered with ice, due to the advance of glaciers, as in the late Carboniferous period, and during most of the Pleistocene; glaciation
2. the Pleistocene epoch
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

glacial period

[¦glā·shəl ′pir·ē·əd]
(geology)
Any of the geologic periods which embraced an ice age; for example, the Quaternary period may be called a glacial period.
Generally, an interval of geologic time which was marked by a major equatorward advance of ice.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
At the height of the last glacial period, when Burramys was in its heyday in southeastern Australia, the wet tropics rainforest and its endemic fauna retreated to two small, permanently moist refugia areas in north-east Queensland.
These findings hint that the switch to a glacial period may be complicated.
When tile last glacial period ended--roughly 10,000 years ago--more than 70 animal species, including the woolly mammoth, became extinct.
He wrote 'there appear to have been glacial periods of world-wide extent'.
The last 10,000 years have been a time of exceptionally kindly weather compared to previous wild swings in temperatures and long glacial periods, or Ice Ages, with shorter warmer spells in between.
The project is part of an effort to dig up detailed atmospheric carbon dioxide measurements for the last glacial period, for comparison with cores from Greenland.
"When Earth started to warm 17,000 years ago, terminating the last glacial period, atmospheric CO2 levels rose from 190 parts per million (ppm) to 280 ppm over 6,000 years.
DNA analyses of permafrost sediment 15,000 to 30,000 years old from northeastern Siberia revealed a grassland steppe plain during the glacial period supporting a diverse mammal community, including bison, moose and the DNA of the rare woolly rhino, the first ever found in permafrost sediments.