Geologic Time - Research Article from World of Biology

This encyclopedia article consists of approximately 7 pages of information about Geologic Time.
This section contains 1,932 words
(approx. 7 pages at 300 words per page)
Buy the Geologic Time Encyclopedia Article

Geologic time describes the immense span of time—billions of years-revealed in the complex rock surface of the Earth. Geochronology is the science of finding out how old rocks and minerals are. Absolute time and relative time are terms used to describe the age of rocks and events used by geologists. Radiometric age determination is a method used by geologists to determine the actual age, in years, of rocks and minerals. Knowledge of stratigraphy, the branch of geology that catalogues the earth's successions of rock layers, is essential to establish the relative ages of rock units. By finding which rock unit came first, the order of the events in earth history can be sorted out.

Before scientific methods were used to find out about geologic time, ideas about time and earth history came from religious theories. The Hindu and Mayan religions believed in endlessly repeating...

(read more)

This section contains 1,932 words
(approx. 7 pages at 300 words per page)
Buy the Geologic Time Encyclopedia Article
Copyrights
Gale
Geologic Time from Gale. ©2005-2006 Thomson Gale, a part of the Thomson Corporation. All rights reserved.
Follow Us on Facebook