Outcrop or artificial surface exposure, Rhyolite
| Geographic location |
-115.45, 35.694444
115°
27'
"
W,
35°
41'
40"
N
Clark county,
NV
Roach Lake
1:62,500 scale map quadrangle
Accurate to within 1 minute (~1 mile)
DEVILS PEAK (PROBABLY DEVIL PEAK--COMPILER)
|
|---|---|
| Source of sample | Outcrop or artificial surface exposure |
| Rock name | Rhyolite |
| Laboratories | Yale |
| Compiler name | Emsing, L.L. |
| Date compiled | 1977 08 |
| Precision of location | Accurate to within 1 minute (~1 mile) |
| Location comment | DEVILS PEAK (PROBABLY DEVIL PEAK--COMPILER) |
| Bibliographic reference | Armstrong, R.L., 1970, Geochronology Of Tertiary Igneous Rocks, Eastern Basin and Range Province, Western Utah, Eastern Nevada, and Vicinity, U.S.A.: Geochimica et Cosmochimica Acta, v. 34, p. 203-232 |
| (click for info) | |
| Geologic map unit | -115.45, 35.694444 |
| Nearby scientific data | Find additional scientific data near this location |
| Age estimate | 13.05 ± 0.3Ma age of intrusion
|
|---|---|
| Type of analysis | conventional K-Ar DUPLICATE K ANALYSES
|
| Rock or mineral analyzed | whole rock |
| Analytical details | |
| Lab sample ID | 22 |
| Decay constants | 4.72E-04, 0.584E-04, 1.19E-04* |
| K2O concentration | 5.04 % |
| Radiogenic 40Ar concentration | 0.95 |
| Radiogenic Ar | 59 % |