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Comparison of the Cretaceous-Tertiary boundary impact events and the 0.77-Ma Australasian tektite event : relevance to mass extinction /

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Bibliographic Details
Main Author: Chao, E. C. T. (Author)
Format: Government Document eBook
Language:English
Published: [Washington, D.C.] : United States Government Printing Office, 1993.
Series:U.S. Geological Survey bulletin ; 2050.
Subjects:
Cretaceous-Paleogene boundary.
Extinction (Biology)
Tektite.
Cretaceous-Tertiary boundary.
Online Access:https://purl.fdlp.gov/GPO/gpo79447
Description
Item Description:Title from title screen (viewed August 25, 2014).
"Reinterpretation of iridium anomalies, shocked quartz, and microtektites attributed to cratering events in Cretaceous-Tertiaryboundary sections. Evidence from the Ries crater of Germany and Australasian tektites is essential to understanding giant craters and mass extinction."
Physical Description:1 online resource (iv, 22 pages) : illustrations, maps.
Bibliography:Includes bibliographical references (pages 19-22).