Geologic epoch

From AMS Glossary
Jump to: navigation, search


geologic epoch

The third-order division of geologic time, delimited by partial withdrawal of the sea from land masses and by gentle crustal disturbances in localized areas.

Two or more epochs are required to make up a geologic period, and, in turn, two or more periods are needed to constitute a geologic era.

Personal tools
Namespaces
Variants