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The Making of a Grand Canyon.
- Source :
-
Science News . 09/30/2000, Vol. 158 Issue 14, p218. 3p. 3 Color Photographs. - Publication Year :
- 2000
-
Abstract
- Discusses the theory that the Grand Canyon is younger than was previously thought. Idea of geologists that portions of the canyon were eroded in the last million years; Use of radioactive dating to determine the age of ash in layers of limestone in the area; Meeting of geologists in which theories concerning the erosion of the canyon were discussed.
Details
- Language :
- English
- ISSN :
- 00368423
- Volume :
- 158
- Issue :
- 14
- Database :
- Academic Search Index
- Journal :
- Science News
- Publication Type :
- Periodical
- Accession number :
- 3610740
- Full Text :
- https://doi.org/10.2307/4018671