Description
Charles Ashmore
Commodities
PrimaryLead
TertiaryZinc
Commodity typeM
Deposit
Model224: Mississippi Valley, S.E. Missouri Pb-Zn
Deposit sizeY
WorkingsUnderground
Materials
Ore mineralsGalena, Sphalerite
GangueCalcite, Dolomite, Pyrite, Quartz
Geology
Host rockDolomite · Prosser Cherty Member
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., N 83 E Trending Crevice
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 statusPast Producer
First production1901
Last production1907
Discovery year1901
Identification
Deposit ID10106500
MRDS IDW800208
RegionNA
Data scoreB
Coordinates42.29807, -90.23678
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.BAIN, H.F., 1905, ZINC AND LEAD DEPOSITS OF NORTHWESTERN ILLINOIS: U.S. GEOLOGICAL SURVEY BULLETIN 246, 56 P.COX, G.H., 1914, LEAD AND ZINC DEPOSITS OF NORTHWESTERN ILLINOIS: ILLINOIS GEOLOGICAL SURVEY BULLETIN 21, 120 P.COX, 1914, P. 59