Viburnum Trend

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 Pb-Zn-Cu sulfide ores with substantial Ag, Co, and Ni are produced Viburnum Trend mines. District currently active. Several past-producing mines now closed. Lead is more abundant than zinc.
Identified resources Historical and current production of copper, lead, silver, and zinc.
Production Historical production of at least 7.6 Mst Pb, more than 1 Mst Zn, and some Cu. Cobalt circuit is present, but production data not reported by Doe Run Company. Cobalt also in mine waste.
Status Past mining and current Pb mining continues for the Viburnum Trend. Also a secondary recovery lead smelter recycling lead-containing waste.
Estimated resources Resources confidential, district currently active.
Geologic maps Grenia (1960), scale 1:62,500; Hayes (1960), scale 1:62,500; Erickson (1950), scale 1:62,500.
Geophysical data Adequate Rank 1 magnetic and aeroradiometric data available (McCafferty and Johnson, 2019).
Favorable rocks and structures Bonneterre Formation.
Deposits Magmont mine (MRDS dep_id: 10073171), Buick mine (MRDS dep_id: 10244067), Brushy Creek, West Fork, Fletcher (MRDS dep_id: 10172109), Sweetwater mines, Viburnum numbers 27, 28, 29 and 35 (Casteel) mines (MRDS dep_id: 10123215).
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 districts of Missouri.
Cover thickness and description 900-1,400 ft.
Authors Cheryl M. Seeger, Warren C. Day.
New data needs Analyze the waste piles for Co.
Geologic mapping and modeling needs Analyze the waste piles for cobalt. New surface geologic mapping may not be critical, unless needed for structure; 3D modeling based on drill hole data would delineate ore bodies, but data availability will be an issue. However, extensive core from Magmont mine in Missouri Geological Survey core repository.
Geophysical survey and modeling needs Explore use of EM; airborne magnetic data recently acquired.
Digital elevation data needs Lidar adequate.