Geographic location |
-115.005556, 39.261111
115°
'
20"
W,
39°
15'
40"
N
White Pine county,
NV
Riepetown
1:24,000 scale map quadrangle
Accurate to within 1 minute (~1 mile)
EMMA PIT, ROBINSON MINING DISTRICT
|
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Source of sample | Quarry |
Rock name | Monzonite |
Description | BIOTITE-ARGILLIC ALTERATION OF MONZONITE |
Laboratories | Lamont (Columbia University) |
Compiler name | Marvin, R.F. |
Date compiled | 1976 04 |
Precision of location | Accurate to within 1 minute (~1 mile) |
Location comment | EMMA PIT, ROBINSON MINING DISTRICT |
Bibliographic reference | Mcdowell, F.W., and Kulp, J.L., 1967, Age Of Intrusion and Ore Deposition In The Robinson Mining District Of Nevada: Economic Geology, v. 62, p. 905-909 |
(click for info) | |
Geologic map unit | -115.005556, 39.261111 |
Nearby scientific data | Find additional scientific data near this location |
Age estimate | 111.12 ± 3Ma |
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Type of analysis | conventional K-Ar POTASSIUM VALUE IS CONVERTED 8.35% K
|
Rock or mineral analyzed | biotite |
Analytical details | |
Lab sample ID | L-1014 |
Decay constants | 4.72E-04, 0.585E-04, 1.19E-04* |
K2O concentration | 10.06 % |
Radiogenic 40Ar concentration | 16.6 |
Radiogenic Ar | 96 % |
Additional reference | McDowell (1971) |
Comments | AGE OF HYDROTHERMAL ALTERATION |