Mineral Resources On-Line Spatial Data
Mineral Resources > Online Spatial Data > Geology > by state > Wisconsin
| State | Wisconsin |
|---|---|
| Name | Ironwood Iron-formation of Menominee Group and Palms Formation of Chocolay Group |
| Geologic age | Early Proterozoic |
| Original map label | Xip |
| Comments | this unit needs to be added to OFR 97-455 report on web (2 polygons near Mineral Lake, WI) and the two affected polygons retagged (from Xmd). Continental margin assemblage (north of Niagara Fault) |
| Primary rock type | iron formation |
| Secondary rock type | dolostone (dolomite) |
| Other rock types | quartzite |
| Lithologic constituents | Major
Sedimentary > Chemical > Banded-iron-formation (Bed) Minor
Metamorphic > Metasedimentary > Metaclastic > Quartzite Sedimentary > Carbonate > Dolostone (Bed) |
| Map references | Sims, P.K., 1992, Geologic map of Precambrian rocks, southern Lake Superior region, Wisconsin and northern Michigan: U.S. Geological Survey Miscellaneous Investigations Map I-2185, scale= 1:500,000 |
| Unit references | Sims, P.K., 1992, Geologic map of Precambrian rocks, southern Lake Superior region, Wisconsin and northern Michigan: U.S. Geological Survey Miscellaneous Investigations Map I-2185, scale= 1:500,000 |
| Geographic coverage | Bayfield |
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