| Main commodities | Cu |
|---|---|
| Ore minerals | chalcopyrite; pyrite |
| Gangue minerals | quartz |
| Quadrangle map, 1:250,000-scale | NB |
|---|---|
| Quadrangle map, 1:63,360-scale | A-1 |
| Latitude | 62.1459 |
| Longitude | -141.3042 |
| Nearby scientific data | Find additional scientific data near this location |
| Location and accuracy | This occurrence is on the ridge between the headwaters of the East Fork, Snag Creek and Baultoff Creek. It is at a elevation of about 6,800 feet, 500 feet southeast of peak 7316. The occurrence is about 0.6 mile southwest of the center of section 1, T. 4 N., R. 22 E. of the Copper River Meridian. This is locality 3 of Richter and others (1973), locality 49 of Richter and others (1975), and National Park Service locality WRST-79 (unpublished data). Cobb and Richter (1980) included this locality as an 'Unnamed occurrence'. It is located to within a few hundred feet. |
Geologic descriptionThis occurrence is a massive quartz vein that contains minor pyrite and chalcopyrite and cuts Permian marine volcaniclastic rocks (Richter and others, 1973; 1975). | |
| Geologic map unit | (-141.306338613627, 62.1455774916285) |
|---|---|
| Mineral deposit model | Copper-bearing vein |
| Age of mineralization | Permian or younger; the host rocks cut by the mineralized quartz vein are Permian. |
| Alteration of deposit | Silicification. |
| Indication of production | None |
|---|---|
Additional commentsThe occurrence is in the Wrangell-St. Elias National Preserve. | |
| MRDS Number | A011419 |
|---|---|
References | |
| Reporters | Travis L. Hudson (Applied Geology) |
| Last report date | 11/24/2002 |