| Basis for focus area |
Focus area outlines a 20-km-long belt of barite prospects in northern Stevens County extending south from the Flagstaff Mountain deposit. |
| Identified resources |
Identified resources and historical production of barite. |
| Production |
No current production. |
| Status |
Past mining. |
| Estimated resources |
Iron Cap prospect: Probably contains thousands of tons with one assay at 49.9% BaSO4. Jacobson mine: estimated 800 tons of Measured and Indicated ore and 2,000 tons of Inferred ore. |
| Geologic maps |
Joseph (1990b), scale 1:100,000; Yates (1971), scale 1:31,680. |
| Geophysical data |
Inadequate Rank 3 to 4 aeromagnetic and Rank 4 aeroradiometric coverage. |
| Favorable rocks and structures |
Argillite overlain by basalt. |
| Deposits |
Flagstaff Mountain (MRDS dep_id: 10204711), Iron Cap prospect (MRDS dep_id: 10131990, Oman (MRDS dep_id: 10228964), Bruce Creek (MRDS dep_id: 10180897), Uribe, Williams Lake, Van Stone, Martin, Jacobsen mine. |
| Evidence from mineral occurrences |
MRDS; Moen (1963). |
| Geochemical evidence |
No data. |
| Geophysical evidence |
Unknown. |
| Evidence from other sources |
None. |
| Cover thickness and description |
Exposed at the surface. |
| Authors |
Daniel W. Eungard, Jane M. Hammarstrom. |
| New data needs |
Geologic mapping, geochemistry. |
| Geologic mapping and modeling needs |
Existing mapping at sufficient resolution, however no details provided to help understand local structures controlling fluid movement. |
| Geophysical survey and modeling needs |
Not applicable to barite deposits. |
| Digital elevation data needs |
Lidar complete. |
