National Geochronological Database sample #3191

Outcrop or artificial surface exposure, Rhyolite

Geographic location
-114.966667, 39.266667
114° 58' " W, 39° 16' " N
White Pine county, NV
Ruth 1:24,000 scale map quadrangle
Accurate to within 1 minute (~1 mile)
ELY MINING DISTRICT
Source of sample Outcrop or artificial surface exposure
Rock name Rhyolite
Description POST-ORE RHYOLITE
Compiler name Nichols, S.L.
Date compiled 1978 01
Precision of location Accurate to within 1 minute (~1 mile)
Location comment ELY MINING DISTRICT
Bibliographic reference Schilling, J.H., 1965, Isotopic Age Determinations Of Nevada Rocks: Nevada Bureau Of Mines and Geology, Report 10, 79p.
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Geologic map unit -114.966667, 39.266667
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K-Ar age determinations

Age estimate 41 ± 5Ma
Type of analysis conventional K-Ar
NO ANALYTICAL DATA GIVEN
Analytical details
Lab sample ID 79
Decay constants 4.72E-04, 0.583E-04
Comments A RECONNAISSANCE AGE; LITTLE INFORMATION GIVEN ABOUT THE SAMPLE