| Basis for focus area |
Barite past producers in MRDS. |
| Identified resources |
Historical production of barite. |
| Production |
Unknown. |
| Status |
Past mining. |
| Estimated resources |
Unknown. |
| Geologic maps |
House and others (2001), scale 1:24,000; Mitchell (1977), various scales; Stewart and Carlson (1976), scale 1:250,000. |
| Geophysical data |
Inadequate Rank 4 aeromagnetic and Rank 5 aeroradiometric coverage. |
| Favorable rocks and structures |
Devonian Slaven Chert Formation; thin-bedded chert, siliceous argillite, shale, with minor limestone. |
| Deposits |
Big Ledge mine (MRDS dep_id: 10246565), Dry Creek Mill (MRDS dep_id: 10149284), Loomis mine (MRDS dep_id: 10197161), Stormy Creek mine (MRDS dep_id: 10173518). |
| Evidence from mineral occurrences |
MRDS. |
| Geochemical evidence |
Unknown. |
| Geophysical evidence |
Unknown. |
| Evidence from other sources |
Unknown. |
| Cover thickness and description |
Exposed at the surface-open-pit mining. |
| Authors |
David A. Ponce. |
| New data needs |
Geophysics, geologic mapping. |
| Geologic mapping and modeling needs |
Current mapping inadequate. |
| Geophysical survey and modeling needs |
High resolution, Rank 1 aeromagnetic and aeroradiometric coverage and gravity survey needed. |
| Digital elevation data needs |
Lidar complete over approximately half of focus area; in progress (GeoDAWN) over remainder. |
