Accession Number : AD0737772

Title :   Chukar Mesa Investigation; Exploration of Areas for a Possible Hard-Rock Cratering Site.

Descriptive Note : Final rept.,

Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MISS

Personal Author(s) : Lutton,Richard J. ; Hunt,Richard W.

Report Date : JUN 1967

Pagination or Media Count : 63

Abstract : A site in dry basalt was selected from six possible areas at the Nevada Test Site for a low-yield nuclear row-charge cratering experiment. Topography is relatively flat over an approximately square area about 3,000 feet across; the area is bounded on three sides by canyons. The site consists of about 330 feet of horizontal basalt flows resting on tuff breccia, other basalt flows, and a thick vitrophyric flow. Unconfined compressive strengths on intact materials tend to decrease with increasing porosity from 23,000 psi for dense basalt to 6,200 psi for vesicular basalt with 20 to 30 percent vesicles. The porous tuff breccia has compressive strengths as low as 1,100 psi. (Author)

Descriptors :   (*NUCLEAR EXPLOSIONS, *CRATERING), (*BASALT, STRUCTURAL PROPERTIES), SOILS, COMPRESSIVE PROPERTIES, POROSITY, STRATIGRAPHY, FAULTS(GEOLOGY), PETROGRAPHY, CLASSIFICATION, TERRAIN, STRAIN(MECHANICS), NEVADA

Subject Categories : Geology, Geochemistry and Mineralogy
      Armor

Distribution Statement : APPROVED FOR PUBLIC RELEASE