| Basis for focus area |
Potential for cobalt-bearing minerals in Pb-Zn-Cu ores from the Indian Creek mine. |
| Identified resources |
Historical production of copper, lead, silver, and zinc. |
| Production |
Lead (primary), copper (secondary), silver (secondary) with minor zinc produced. From 1954 to 1963 produced more than 4.5 million tons of ore (Kiilsgaard and others, 1967). Lead production through 1974 was 260,000 tons of contained metal (Wharton, 1975). |
| Status |
Past mining. Production from the Indian Creek mine began in 1953. Lead and Zn concentrates produced until 1965 when Zn circuit discontinued. A Cu circuit was installed in 1970. Mine is currently closed. |
| Estimated resources |
Unknown. |
| Geologic maps |
Brown (2002), scale 1:24:000. |
| Geophysical data |
Adequate Rank 1 magnetic and aeroradiometric data available (McCafferty and Johnson, 2019). |
| Favorable rocks and structures |
Lamotte Sandstone, Bonneterre Formation. |
| Deposits |
Indian Creek Division (MRDS dep_id: 10124157), Goose Creek mine. |
| Evidence from mineral occurrences |
MRDS; Missouri Geological Survey database Inventory of Mines; Occurrences and Prospects (Missouri Geological Survey, 2021b). |
| Geochemical evidence |
Unknown, may be data in files at the Missouri Geological Survey; known favorable mineralogy. |
| Geophysical evidence |
Combination of gravity with magnetic data. |
| Evidence from other sources |
Drilling has defined the ore bodies. |
| Comments |
Lower priority for new mapping compared to the Old Lead Belt/Fredericktown subdistricts of Missouri. |
| Cover thickness and description |
Approximately 1,000 ft. |
| Authors |
Cheryl M. Seeger, Warren C. Day. |
| New data needs |
Analyze the waste piles for cobalt. |
| Geologic mapping and modeling needs |
New surface geologic mapping may not be critical; 3-d modeling based on drill hole data would delineate ore bodies, but data availability will be an issue. Analyze the waste piles for cobalt. |
| Geophysical survey and modeling needs |
Explore use of EM; airborne magnetic data recently acquired. |
| Digital elevation data needs |
Lidar adequate. |
