Outcrop or artificial surface exposure, Quartz diorite
| Geographic location |
-117.36, 45.260833
117°
21'
36"
W,
45°
15'
39"
N
Wallowa county,
OR
Enterprise
1:62,500 scale map quadrangle
Accurate to within 1 minute (~1 mile)
WALLOWA MOUNTAINS
|
|---|---|
| Source of sample | Outcrop or artificial surface exposure |
| Rock name | Quartz diorite |
| Description | BIOTITE-HORNBLENDE QUARTZ DIORITE, HURRICANE DIVIDE UNIT (MAJOR UNIT OF ZONED TONALITE-GRANODIORITE COMPLEX), WALLOWA BATHOLITH |
| Laboratories | Yale |
| Compiler name | Marvin, R.F. |
| Date compiled | 1980 12 |
| Precision of location | Accurate to within 1 minute (~1 mile) |
| Location comment | WALLOWA MOUNTAINS |
| Bibliographic reference | Armstrong, R.L., Taubeneck, W.H., and Hales, P.O., 1976, Rb-Sr and K-Ar Ages and Sr Isotopic Compositions Of Some Granitic Rocks Of Oregon and Washington: Isochron/West, no. 17, p. 27-32. |
| (click for info) | |
| Geologic map unit | -117.36, 45.260833 |
| Nearby scientific data | Find additional scientific data near this location |
| Age estimate | (no age estimate specified) |
|---|---|
| Rock or mineral analyzed | whole rock |
| Analytical details | |
| Lab sample ID | 9. 1350 |
| Decay constants | 1.42E-05 |
| Rubidium concentration | 31 ppm |
| Strontium concentration | 607 ppm |
| Ratio 87Sr/86Sr | 0.70367 |
| Normal? | T |