Description
Frontier Mining Co.; Wisconsin Zinc Co.
Commodities
PrimaryZinc
TertiaryLead
Commodity typeM
Deposit
Model224: Mississippi Valley, S.E. Missouri Pb-Zn
Deposit sizeY
WorkingsUnderground
Materials
Ore mineralsSphalerite
GangueCalcite, Dolomite, Pyrite, Quartz
Geology
Host rockDolomite · Prosser Cherty Member, Galena Dolomite;Mcgregor Member, Platteville Formation
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.
AlterationThe Ore Replaces Limestone And Cements Rock Breccia.
Economic & production
Development statusPast Producer
First production1915
Last production1917
Discovery year1913
Identification
Deposit ID10086357
MRDS IDW800265
RegionNA
Data scoreB
Coordinates42.48557, -90.38928
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.WILLMAN, H.B., REYNOLDS, R.R., AND HERBERT, PAUL, JR., 1946, GEOLOGICAL ASPECTS OF PROSPECTING AND AREAS FOR PROSPECTING IN THE ZINC-LEAD DISTRICT OF NORTHWESTERN ILLINOIS: ILLINOIS GEOLOGICAL SURVEY REPORT OF INVESTIGATIONS, NO. 116, 48 P.HEYL AND OTHERS, 1959, P. 186.