Outcrop or artificial surface exposure, Andesite
| Geographic location |
-115.473333, 35.811667
115°
28'
24"
W,
35°
48'
42"
N
Clark county,
NV
Goodsprings
1:62,500 scale map quadrangle
Accurate to within 0.1 minute (~500 feet)
SPRING MOUNTAINS
|
|---|---|
| Source of sample | Outcrop or artificial surface exposure |
| Rock name | Andesite |
| Description | TABLE MOUNTAIN ANDESITE (INFORMAL NAME) |
| Laboratories | Ohio State University |
| Compiler name | Nichols, S.L. |
| Date compiled | 1978 03 |
| Precision of location | Accurate to within 0.1 minute (~500 feet) |
| Location comment | SPRING MOUNTAINS |
| Bibliographic reference | Marvin, R.F., Mehnert, H.H., and Mckee, E.H., 1973, A Summary Of Radiometric Ages Of Tertiary Volcanic Rocks In Nevada and Eastern California. Part III: Southeastern Nevada: Isochron/West, No. 6, p. 1-30. |
| (click for info) | |
| Geologic map unit | -115.473333, 35.811667 |
| Nearby scientific data | Find additional scientific data near this location |
| Age estimate | 12.3 ± 0.4Ma age of volcanism
|
|---|---|
| Type of analysis | conventional K-Ar |
| Rock or mineral analyzed | whole rock |
| Analytical details | |
| Lab sample ID | 124 |
| Decay constants | 4.72E-04, 0.585E-04, 1.19E-04* |
| K2O concentration | 4.78 % |
| Radiogenic 40Ar concentration | 0.8491 |