NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Contributions to Astrogeology: Geology of the lunar crater volcanic field, Nye County, NevadaThe Lunar Crater volcanic field in east-central Nevada includes cinder cones, maars, and basalt flows of probably Quaternary age that individually and as a group resemble some features on the moon. Three episodes of volcanism are separated by intervals of relative dormancy and erosion. Changes in morphology of cinder cones, degree of weathering, and superposition of associated basalt flows provide a basis for determining the relative ages of the cones. A method has been devised whereby cone heights, base radii, and angles of slope are used to determine semiquantitatively the age relationships of some cinder cones. Structural studies show that cone and crater chains and their associated lava flows developed along fissures and normal faults produced by tensional stress. The petrography of the basalts and pyroclastics suggests magmatic differentiation at depth which produced interbedded subalkaline basalts, alkali-olivine basalts, and basanitoids. The youngest flows in the field are basanitoids.
Document ID
19720025684
Document Type
Contractor Report (CR)
Authors
Scott, D. H. (Geological Survey Washington, DC, United States)
Trask, N. J. (Geological Survey Washington, DC, United States)
Date Acquired
September 2, 2013
Publication Date
January 1, 1971
Subject Category
GEOPHYSICS
Report/Patent Number
NASA-CR-128375
USGS-PP-NASA-599-1
LC-77-611770
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Available Downloads

NameType 19720025684.pdf STI