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单词 glacial epoch
释义 glacial epoch
[¦glā·shǝl `ep·ǝk]
GEOLOGY
1. Any of the geologic epochs characterized by an ice age; thus, the Pleistocene epoch may be termed a glacial epoch.
2. Generally, an interval of geologic time which was marked by a major equatorward advance of ice; the term has been applied to an entire ice age or (rarely) to the individual glacial stages which make up an ice age.
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