| Term: | Cryogenic period |
| Definition: |
An interval in geologic time during which geologic, geomorphic, and climatic conditions favored large-scale glacier formation; a period that tended to produce an ice age or glacial period. AMSglossary
GCW |
| Term: | Cryogenic period |
| Definition: | An interval in geologic time during which geologic, geomorphic, and climatic conditions favored large-scale glacier formation; a period that tended to produce an ice age or glacial period. |