| Geographic location |
-79.165278, 37.85
79°
9'
55"
W,
37°
51'
"
N
Rockbridge county,
VA
Montebello
1:24,000 scale map quadrangle
Accurate to within 1 minute (~1 mile)
OPEN WORKINGS OF PANTHER RUN, IRISH CREEK TIN DISTRICT, WESTERNMOST FLANK OF BLUE RIDGE
|
|---|---|
| Source of sample | Quarry |
| Rock name | Greisen |
| Description | A QUARTZ-MUSCOVITE GREISEN WITH MINOR CASSITERITE; LARGE, RANDONLY ORIENTED BOOKS OF MUSCOVITE |
| Laboratories | University of Georgia |
| Compiler name | Marvin, R.F. |
| Date compiled | 1984 05 |
| Precision of location | Accurate to within 1 minute (~1 mile) |
| Location comment | OPEN WORKINGS OF PANTHER RUN, IRISH CREEK TIN DISTRICT, WESTERNMOST FLANK OF BLUE RIDGE |
| Bibliographic reference | Hudson, T.A., and Dallmeyer, R.D., 1982, Age of mineralized greisens in the Irish Creek tin district, Virginia Blue Ridge: Economic Geology, v. 77, p. 189-192. |
| (click for info) | |
| Geologic map unit | -79.165278, 37.85 |
| Nearby scientific data | Find additional scientific data near this location |
| Age estimate | 634 ± 11Ma |
|---|---|
| Type of analysis | 39Ar-40Ar incremental (plateau) SEE ARTICLE FOR 40-39AR ANALYTICAL DATA
|
| Rock or mineral analyzed | muscovite |
| Analytical details | |
| Lab sample ID | SAMPLE 1 |
| Decay constants | 4.962E-04, 0.581E-04, 1.1167E-04 |
| Comments | THE TIME OF FORMATION OF THE GREISEN AND PROBABLY GRANITE EMPLACEMENT |