Actions for Impact of an asteroid or comet in the ocean and extinction of terrestrial life

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Impact of an asteroid or comet in the ocean and extinction of terrestrial life

Author
Okeefe, J. D.
Published
JAN 1, 1982.
Physical Description
1 electronic document
Additional Creators
Ahrens, T. J.
Online Version

Availability

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Restrictions on Access
Unclassified, Unlimited, Publicly available.
Free-to-read Unrestricted online access
Summary
Finite difference calculations describing the impact mechanics associated with a 10 to 30 km diameter silicate or water object impacting a 5 km deep ocean overlying a silicate solid planet demonstrate that from 12 to 15% of the bolide energy resides in the water. It is speculated that minimal global tsunami run-up heights on the continents would be 300-400 meters, and that such waves would inundate all low altitude continental areas, and strip and silt-over virtually all vegetation. As a result the terrestrial animal food chain would be seriously perturbed. This could in turn cause extinction of large terrestrial animals.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 19820019079.
Accession ID: 82N26955.
NAS 1.26:169086.
NASA-CR-169086.
Terms of Use and Reproduction
No Copyright.
View MARC record | catkey: 15715527