geologic time scale

(redirected from Prehistory of the earth)

geologic time scale

[¦jē·ə¦läj·ik ′tīm ‚skāl]
(geology)
The relative age of various geologic periods and the absolute time intervals.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.