Outcrop or artificial surface exposure, Gneiss
| Geographic location |
-82.07, 36.133611
82°
4'
12"
W,
36°
8'
1"
N
Carter county,
TN
White Rocks Mountain
1:24,000 scale map quadrangle
Accurate to within 1 minute (~1 mile)
SE OF BURBANK, WEST CENTRAL BLUE RIDGE
|
|---|---|
| Source of sample | Outcrop or artificial surface exposure |
| Rock name | Gneiss |
| Description | ROAN GNEISS |
| Laboratories | Ohio State University |
| Compiler name | Marvin, R.F. |
| Date compiled | 1979 07 |
| Precision of location | Accurate to within 1 minute (~1 mile) |
| Location comment | SE OF BURBANK, WEST CENTRAL BLUE RIDGE |
| Bibliographic reference | Dallmeyer, R.D., 1975, 40Ar/39Ar Ages Of Biotite and Hornblende From A Progressively Remetamorphosed Basement Terrane: Their Bearing On Interpretation Of Release Spectra: Geochimica et Cosmochimica Acta, v. 39, p. 1655-1669. |
| (click for info) | |
| Geologic map unit | -82.07, 36.133611 |
| Nearby scientific data | Find additional scientific data near this location |
| Age estimate | 500 ± 10Ma |
|---|---|
| Type of analysis | 39Ar-40Ar total fusion 40-39 TOTAL-GAS AGE
|
| Rock or mineral analyzed | hornblende |
| Analytical details | |
| Lab sample ID | 22 |
| Decay constants | 4.72E-04, 0.585E-04, 1.19E-04 |
| Comments | INITIAL AGE COMPLETELY RESET BY EARLY PALEOZOIC METAMORPHISM(ABOUT 480 M.Y. AGO) |