| Basis for focus area |
15 km buffer around Barite Hill mining district (MRDS dep_id: 10226420). |
| Identified resources |
Historical production of gold and silver. |
| Production |
Barite Hill deposit (1990-1994): produced about 1,835,000 grams Au and 3,390,280 grams Ag (Clark, 1999). |
| Status |
Past mining. |
| Estimated resources |
Unknown. |
| Geologic maps |
Clark (1999), scale 1:100,000. |
| Geophysical data |
Inadequate Rank 4 aeromagnetic and aeroradiometric coverage. |
| Favorable rocks and structures |
Host rocks for the VMS deposits are sericitically-altered, felsic metavolcanic and metasedimentary rocks of the Late Proterozoic Persimmon Fork Formation, which consists of the Lincolnton meta-rhyolite and overlying lower and upper pyroclastic units. |
| Deposits |
Barite Hill (MRDS dep_id: 10226420). |
| Evidence from mineral occurrences |
MRDS. |
| Geochemical evidence |
The Barite Hill deposit is in the Lincolnton-McCormick district, which includes other mines and prospects for Au, Ag, Cu, Zn, Pb, Mn, as well as kyanite (Clark, 1999). |
| Geophysical evidence |
Unknown. |
| Evidence from other sources |
Geologic mapping. |
| Comments |
Known producer but limited spatial extent. Benefit of geophysical surveys not known. |
| Cover thickness and description |
Exposed bedrock to thin cover. |
| Authors |
Nora K. Foley, Bernard E. Hubbard. |
| New data needs |
Geophysical data, geologic mapping, and geochemical analyses. |
| Geologic mapping and modeling needs |
1:24,000 scale geologic mapping. |
| Geophysical survey and modeling needs |
High resolution aeromagnetic and aeroradiometric coverage. Aeromagnetic data expected to image mafic rocks and associated structures, radiometric data can help with geologic mapping in vegetated terrane; alteration may be imaged. Electromagnetic methods may help image sulfides. |
| Digital elevation data needs |
Lidar in progress. |
