Daniel F. Belknap
Contributor
LOCATION: Orono, ME, United States
Professor of Geological Sciences, Marine Studies, and Quaternary Studies, University of Maine, U.S.
Primary Contributions (2)
Quaternary, in the geologic history of Earth, a unit of time within the Cenozoic Era, beginning 2,588,000 years ago and continuing to the present day. The Quaternary has been characterized by several periods of glaciation (the “ice ages” of common lore), when ice sheets many kilometres thick have…
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