Accession Number : ADA118743

Title :   Reconnaissance Geology and Structure of the Coso Range, California.

Descriptive Note : Final rept. 1975-1981,

Corporate Author : NAVAL WEAPONS CENTER CHINA LAKE CA

Personal Author(s) : Roquemore,Glenn R

PDF Url : ADA118743

Report Date : May 1982

Pagination or Media Count : 48

Abstract : The Coso Range was mapped at a scale of 1:62,500 in order to collect basic petrographic, petrologic, and chemical data. Special attention was given to individual fault zones and regional fault patterns. The basement in the Coso Range consists of Mesozoic age granitic rock and metamorphic inclusions. Tertiary aged dacite tephra and flows cover the northern and western parts of the Range. Quaternary basalts, andesites, and rhyolites cover the central and eastern parts of the Range. The Coso Range has been broken by Basin and Range extensional faulting, as seen in extensive horst and graben development and right-slip displacement evidenced by ramping, oblique-slip striations, and lateral-slip fault morphology. (Author)

Descriptors :   *Mountains, California, Rock, Geochemistry, Sampling, Chemical analysis, Structural geology, Displacement

Subject Categories : Geology, Geochemistry and Mineralogy

Distribution Statement : APPROVED FOR PUBLIC RELEASE