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Deeper Impact.

Authors :
Simpson, Sarah
Source :
Scientific American. May2001, Vol. 284 Issue 5, p18. 2p. 1 Color Photograph.
Publication Year :
2001

Abstract

Discusses the possibility that an asteroid or comet struck the Earth and wiped out 95 percent of life in the oceans. How this collision allegedly occurred before the extinction of the dinosaurs; Use of iridium and other elements to determine where and when the object struck the Earth.

Details

Language :
English
ISSN :
00368733
Volume :
284
Issue :
5
Database :
Academic Search Index
Journal :
Scientific American
Publication Type :
Periodical
Accession number :
4328728
Full Text :
https://doi.org/10.1038/scientificamerican0501-18