Bonneterre Formation | |
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Stratigraphic range: Guzhangian (Dresbachian) ~ | |
Type | Formation |
Underlies | Davis Formation |
Overlies | Lamotte Sandstone[1] |
Lithology | |
Primary | Dolomite |
Other | Shale, limestone, sandstone |
Location | |
Coordinates | 37°38′10″N 90°34′41″W / 37.636°N 90.578°W |
Approximate paleocoordinates | 22°54′S 86°30′W / 22.9°S 86.5°W |
Region | Arkansas,[2] Kansas,[3] Illinois, Iowa,[4] Minnesota,[4] Missouri |
Country | United States |
The Bonneterre Formation is an Upper Cambrian geologic formation which outcrops in the St. Francois Mountains of the Missouri Ozarks. The Bonneterre is a major host rock for the lead ores of the Missouri Lead Belt.