National Geochronological Database sample #3190

Outcrop or artificial surface exposure, Quartz monzonite

Geographic location
-114.9625, 39.2625
114° 57' 45" W, 39° 15' 45" N
White Pine county, NV
Ruth 1:24,000 scale map quadrangle
Accurate to within 1 minute (~1 mile)
1/4 WEST OF KIMBERLY IN ELY MINING DISTRICT
Source of sample Outcrop or artificial surface exposure
Rock name Quartz monzonite
Description QUARTZ MONZONITE PORPHYRY BODY
Laboratories University of California, Berkeley
Compiler name Nichols, S.L.
Date compiled 1978 01
Precision of location Accurate to within 1 minute (~1 mile)
Location comment 1/4 WEST OF KIMBERLY IN 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 -114.9625, 39.2625
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K-Ar age determinations

Age estimate 123 ± 12Ma
age of intrusion
Type of analysis conventional K-Ar
NO ANALYTICAL DATA GIVEN
Rock or mineral analyzed orthoclase
Analytical details
Lab sample ID 77
Decay constants 4.72E-04, 0.583E-04