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Geologic time online edition

http://pubs.usgs.gov/gip/geotime/

Booklet giving general explanations of geologic time, major divisions of geologic time, relative and radiometric time scales, index fossils, and the age of the earth.

by Newman, William L.
U.S. Geological Survey general interest publication
Related topics:
Fossils, Geochronology, Geologic history, Geologic time scales, Radiometric dating

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