| Geographic location |
-117.133333, 40.541667
117°
8'
"
W,
40°
32'
30"
N
Lander county,
NV
Antler Peak
1:62,500 scale map quadrangle
Accurate to within 1 minute (~1 mile)
SE1/4 SEC. 21, T31N, R43E; COMPOSITE SAMPLE OF 9 DRILL-CORE SPLITS FROM DEPTHS OF 115.8 TO 123.4 METERS BELOW GROUND SURFACE, COPPER CANYON AREA
|
|---|---|
| Source of sample | Core or cutting |
| Rock name | Granodiorite |
| Description | ALTERED GRANODIORITE SILL; INTENSELY SERICITIZED AND PYRITIZED PORPHYRITIC GRANODIORITE WITH ""FRESH"" BIOTITE AND CHLORITE VEINLETS. |
| 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 | SE1/4 SEC. 21, T31N, R43E; COMPOSITE SAMPLE OF 9 DRILL-CORE SPLITS FROM DEPTHS OF 115.8 TO 123.4 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 | -117.133333, 40.541667 |
| Nearby scientific data | Find additional scientific data near this location |
| Age estimate | 38.54 ± 0.8Ma minimum age of intrusion
|
|---|---|
| Type of analysis | conventional K-Ar |
| Rock or mineral analyzed | biotite 2% CHLORITE; -42+65 MESH SAMPLE
|
| Analytical details | |
| Lab sample ID | 11. (MB-40) |
| Decay constants | 4.72E-04, 0.585E-04, 1.19E-04* |
| K2O concentration | 9 % |
| Radiogenic 40Ar concentration | 5.048 |
| Radiogenic Ar | 78 % |
| Comments | MAY BE AGE OF MINERALIZATION |