Mine detail: Illinois Mine

Previously called ''

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Location

Lat / long:

42.31251, -90.24011

Resource(M)

Primary:	Lead
Tertiary:	Zinc
Ore:	Galena, Sphalerite
Gangue:	Calcite, Dolomite, Pyrite, Quartz

Production

Operation type:	Unknown
Production size:	Yes
Development status:	Unknown

Geology

Host type:	Limestone,Dolomite
Structure:	Southeast 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:	Stable Sedimentary Platform Having Later Mild Regional Deformation Sufficient To Produce Major And Minor Folds, Faults, Fracture Zones, And Joints.
Alteration processes:	Leaching, Silicification, Dolomitization

References

MRDS	W800259
DEP	10086353
Reference	COX, G.H., 1914, LEAD AND ZINC DEPOSITS OF NORTHWESTERN ILLINOIS: ILLINOIS GEOLOGICAL SURVEY BULLETIN 21, 120 P
Reporter	Hedgman, Cheryl (Cannon, W.), Sutphin, David M., Mason Jr., G.T.