Ouachita manganese-cobalt district

Region Central, South Central
Mineral systems
Deposit types
Critical minerals
Other minerals

Information leading to the delineation of this focus area

Basis for focus area Outline based on point data from previous mine workings.
Identified resources Historical production of manganese.
Production Minor Mn production up to the 1960s.
Status Past mining; no current mining or exploration.
Estimated resources Unknown.
Geologic maps Miser and Purdue (1929), scale 1:125,000; Haley and Stone (2006), scale 1:125,000.
Geophysical data Adequate Rank 1 magnetic and aeroradiometric coverage (McCafferty and Brown, 2020b).
Favorable rocks and structures Arkansas Novaculite Formation.
Deposits Fagan mine (MRDS dep_id: 10162538,) Nelson mine (MRDS dep_id: 10138500).
Evidence from mineral occurrences MRDS.
Geochemical evidence No data.
Geophysical evidence None.
Evidence from other sources Unknown.
Cover thickness and description Ore exposed at the surface.
Authors Corbin Cannon, W.D. Hanson.
New data needs High resolution geophysics.
Geologic mapping and modeling needs None requested at this time.
Geophysical survey and modeling needs High-resolution, Rank 1 aeromagnetic and radiometric surveys.
Digital elevation data needs Lidar adequate.