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Earthquake-induced structures in sediments of Van Norman Lake, San Fernando, California

Science

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Abstract

The 9 February 1971 earthquake in the San Fernando Valley damaged the Lower Van Norman Dam severely enough to warrant draining the reservoir. In March 1972 the sediment deposited on the reservoir floor was examined to determine whether the 1971 earthquake had induced sediment deformation and, if so, what types. A zone of deformational structures characterized by small-scale loads and slightly recumbent folds associated with the 1971 earthquake was discovered, in addition to two older zones of load structures. Each of the zones has been tentatively correlated with an historic earthquake.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Earthquake-induced structures in sediments of Van Norman Lake, San Fernando, California
Series title:
Science
Volume
182
Issue:
4108
Year Published:
1973
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
161
Last page:
163
Number of Pages:
3