Location: | Jo Daviess County, Illinois, United States, North America |
Lat / long: | 42.31251, -90.24011 |
dep_id: | 10086353 |
mrds_id: | W800259 |
Commodity type: | metallic |
Major mineral: | Lead |
Trace mineral: | Zinc |
Operation type: | Unknown |
Production size: | Production occurred |
Development status: | Unknown |
ore: | Galena, Sphalerite |
gangue: | Calcite, Dolomite, Pyrite, Quartz |
work_type: | Underground |
model: | 224: Mississippi Valley, S.E. Missouri Pb-Zn |
alteration: | Leaching, Silicification, Dolomitization |
conc_proc: | Replacement |
Reporter: | Hedgman, Cheryl (Cannon, W.), Sutphin, David M., Mason Jr., G.T. |
hrock_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. |
References: |
- COX, G.H., 1914, LEAD AND ZINC DEPOSITS OF NORTHWESTERN ILLINOIS: ILLINOIS GEOLOGICAL SURVEY BULLETIN 21, 120 P
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