| 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
|
|---|---|
| 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 |
|---|---|
| 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 |