Mineral Resources On-Line Spatial Data
Mineral Resources > Online Spatial Data > Geology > by state > Wisconsin Geology
Geologic units in Burnett county, Wisconsin
- Copper Harbor Conglomerate (Middle Proterozoic) at surface, covers 21 % of this area
Copper Harbor Conglomerate - Red lithic conglomerate and sandstone; mafic to felsic volcanic flows similar to those of the unnamed formation (unit Yu) are interlayered with the sedimentary rocks.
- Chengwatana Volcanic Group (Middle Proterozoic) at surface, covers 60 % of this area
Chengwatana Volcanic Group - Gray basalt flows, interflow breccia, tuff, and minor sedimentary rocks
- Cambrian, undivided (Cambrian) at surface, covers 19 % of this area
Cambrian, undivided - Sandstone with some dolomite and shale, undivided; includes Trempealeau, Tunnel City, and Elk Mound Formations
- Upper Cambrian, undivided (Late Cambrian) at surface, covers < 0.1 % of this area
Upper Cambrian, undivided - Jordan Sandstone; dolomite, glauconite, and silty glauconite rocks of the St. Lawerence and Franconia Formation; Ironton and Galesville Sandstones; sandy and shaly rocks of the Eau Claire Formation; and the Mt. Simon Sandstone.
- Chengwatana Volcanic Group (Middle Proterozoic) at surface, covers < 0.1 % of this area
Chengwatana Volcanic Group - Basalt and related volcanogenic and interflow sedimentary rocks in east-central Minnesota