Shaft and scattered diggings of mineralized Ordovician Prairie du Chien Group dolostone, located NE of Orion in NW NW section 28 T9N R1E. Worked in the nineteenth century, but was available for field inspection by 1970.

Regions containing this locality

North America Plate

Tectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.

ⓘ Lead

Mineral List

4 valid minerals.

Detailed Mineral List:

ⓘ Calcite

Formula: CaCO₃

Reference: Heyl, A. & W. West, 1982, Outlying mineral occurrences related to the Upper Mississippi Valley Mineral District, Wisconsin, Iowa, Illinois, and Minnesota, Economic Geology: 77(8):1803-1817.

ⓘ Dolomite

Formula: CaMg(CO₃)₂

ⓘ Galena

Formula: PbS

ⓘ Quartz

Formula: SiO₂

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘ	Galena	2.CD.10	PbS
Group 4 - Oxides and Hydroxides
ⓘ	Quartz	4.DA.05	SiO₂
Group 5 - Nitrates and Carbonates
ⓘ	Calcite	5.AB.05	CaCO₃
ⓘ	Dolomite	5.AB.10	CaMg(CO₃)₂

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
A_mX_p, with m:p = 1:1
ⓘ	Galena	2.8.1.1	PbS
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO₃)
ⓘ	Calcite	14.1.1.1	CaCO₃
AB(XO₃)₂
ⓘ	Dolomite	14.2.1.1	CaMg(CO₃)₂
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO₂ with [4] coordinated Si
ⓘ	Quartz	75.1.3.1	SiO₂

List of minerals for each chemical element

C	Carbon
C	ⓘ Calcite	CaCO₃
C	ⓘ Dolomite	CaMg(CO₃)₂
O	Oxygen
O	ⓘ Quartz	SiO₂
O	ⓘ Calcite	CaCO₃
O	ⓘ Dolomite	CaMg(CO₃)₂
Mg	Magnesium
Mg	ⓘ Dolomite	CaMg(CO₃)₂
Si	Silicon
Si	ⓘ Quartz	SiO₂
S	Sulfur
S	ⓘ Galena	PbS
Ca	Calcium
Ca	ⓘ Calcite	CaCO₃
Ca	ⓘ Dolomite	CaMg(CO₃)₂
Pb	Lead
Pb	ⓘ Galena	PbS

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Paleozoic

251.902 - 541 Ma

ID: 3187973

Paleozoic sedimentary rocks

Age: Phanerozoic (251.902 - 541 Ma)

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Cambrian

485.4 - 541 Ma

ID: 2985493

Cambrian, undivided

Age: Cambrian (485.4 - 541 Ma)

Stratigraphic Name: Trempealeau Formation; Tunnel City Formation; Elk Mound Formation

Description: Sandstone with some dolomite and shale, undivided; includes Trempealeau, Tunnel City, and Elk Mound Formations

Comments: Original map source: Cannon, W.F., Kress, T.H., Sutphin, D.M., Morey, G.B., Meints, Joyce, and Barber-Delach, Robert, 1997, Digital Geologic Map and mineral deposits of the Lake Superior Region, Minnesota, Wisconsin, Michigan: USGS Open-File Report 97-455 (version 3, Nov. 19

Lithology: Major:{sandstone}, Minor:{dolostone,shale}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

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Heyl, A. & W. West, 1982, Outlying mineral occurrences related to the Upper Mississippi Valley Mineral District, Wisconsin, Iowa, Illinois, and Minnesota, Economic Geology: 77(8):1803-1817.

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