| Geographic location |
-117.125, 40.541667
117°
7'
30"
W,
40°
32'
30"
N
Lander county,
NV
Antler Peak
1:62,500 scale map quadrangle
Accurate to within 1 minute (~1 mile)
SW1/4 SEC. 22, T31N, R43E; COMPOSITE SAMPLE OF NINE DRILL CORE SPLITS FROM DEPTHS OF 74.7 TO 131.1 METERS BELOW GROUND SURFACE, COPPER CANYON AREA
|
|---|---|
| Source of sample | Core or cutting |
| Rock name | Granodiorite |
| Description | ALTERED GRANODIORITE OF COPPER CANYON AREA; COARSE- TO MEDIUM-GRAINED PORPHYRITIC ALTERED BIOTITE GRANODIORITE |
| Laboratories | USGS Menlo Park |
| Compiler name | Nichols, S.L. |
| Date compiled | 1978 04 |
| Precision of location | Accurate to within 1 minute (~1 mile) |
| Location comment | SW1/4 SEC. 22, T31N, R43E; COMPOSITE SAMPLE OF NINE DRILL CORE SPLITS FROM DEPTHS OF 74.7 TO 131.1 METERS BELOW GROUND SURFACE, COPPER CANYON AREA |
| Bibliographic reference | Theodore, T.G., Silberman, M.L., and Blake, D.W., 1973, Geochemistry and Potassium-Argon Ages Of Plutonic Rocks In The Battle Mountain Mining District, Lander County, Nevada: U.S. Geological Survey Professional Paper 798A, A24pp. |
| (click for info) | |
| Geologic map unit | -117.125, 40.541667 |
| Nearby scientific data | Find additional scientific data near this location |
| Age estimate | 39.14 ± 0.8Ma age of intrusion
|
|---|---|
| Type of analysis | conventional K-Ar |
| Rock or mineral analyzed | biotite -40+80 MESH
|
| Analytical details | |
| Lab sample ID | 10. (MB-23) |
| Decay constants | 4.72E-04, 0.585E-04, 1.19E-04* |
| K2O concentration | 9.05 % |
| Radiogenic 40Ar concentration | 5.155 |
| Radiogenic Ar | 82 % |