Commodities
PrimaryZinc
TertiaryLead
Commodity typeM
Deposit
Model224: Mississippi Valley, S.E. Missouri Pb-Zn
Deposit sizeU
Materials
Ore mineralsBarite, Sphalerite
GangueCalcite, Dolomite, Pyrite, Quartz
Geology
Host rockShale · Maquoketa Shale
StructureSoutheast Of Wisconsin Dome And On The Gentle West Limb Of Wisconsin Arch. To The South Is Illinois Basin And To The West And Southwest Is Forest City Basin. A Few Minles South O Fthe Zinc-Lead District Is Westward-Trending Savanna-Sabula Anticline. Regional Strike Is N 85 W And The Dip Is South.
Tectonic settingStable Sedimentary Platform Having Later Mild Regional Deformation Sufficient To Produce Major And Minor Folds, Faults, Fracture Zones, And Joints.
AlterationLeaching, Silicification, Dolomitization
Economic & production
Development statusUnknown
Identification
Deposit ID10086342
MRDS IDW800241
RegionNA
Data scoreB
Coordinates42.36362, -90.40539
References
HEYL, A.V., AGNEW, A.F., LYONS, E.J., AND BEHRE, C.H., JR., 1959, THE GEOLOGY OF THE UPPER MISSISSIPPI VALLEY ZINC-LEAD DISTRICT: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 309, 310 P.COX, G.H., 1914, LEAD AND ZINC DEPOSITS OF NORTHWESTERN ILLINOIS: ILLINOIS GEOLOGICAL SURVEY BULLETIN 21, 120 P.