Geochemical survey of the Lusk Creek Roadless Area, Pope County, Illinois
Miscellaneous Field Studies Map
1405-B
By: John S. Klasner and Gordon W. Day
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Abstract
The Lusk Creek Roadless Area (Index map) lies along the western edge of the Illinois-Kentucky fluorspar district in which flourite deposits occur as lenticular-type veins emplaced along fult zones or as tratiform-shaped bedding-replacement deposits that occur along fault zones (Grogan and Bradbury, 1967; Trace, 1974). Although mineralogy varies between deposits, Trace (1974) points out that the principal minerals are fluorite (CaF) and calcite (CaCO3), and associated with these minerals are lesser amounts of sphalerite (ZnS), galena (PbS), and barite (BaSO4). Minor quantites of iron-rich dolomite (CaMg(CO3)2), pyrite (FeS2), and alteration products of zinc, lead, and copper minerals also are found.
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Geochemical survey of the Lusk Creek Roadless Area, Pope County, Illinois |
| Series title | Miscellaneous Field Studies Map |
| Series number | 1405 |
| Chapter | B |
| DOI | 10.3133/mf1405B |
| Year Published | 1984 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Publisher location | Reston, VA |
| Description | 2 Plates: 33.26 x 32.91 inches and 38.57 x 44.87 inches |
| Country | United States |
| State | Illinois |
| Other Geospatial | Lusk Creek |
| Scale | 24000 |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |