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Blackstone Mine, Shullsburg area, Upper Mississippi Valley District, Lafayette Co., Wisconsin, USAi
Regional Level Types
Blackstone MineMine
Shullsburg areaArea
Upper Mississippi Valley DistrictMining District
Lafayette Co.County
WisconsinState
USACountry

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Latitude & Longitude (WGS84): 42° 32' 1'' North , 90° 19' 50'' West
Latitude & Longitude (decimal): 42.53383,-90.33080
GeoHash:G#: 9zxcbrp1e
Locality type:Mine
Köppen climate type:Dfb : Warm-summer humid continental climate
Nearest Settlements:
PlacePopulationDistance
Benton964 (2017)5.7km
Hazel Green1,247 (2017)8.5km
Scales Mound378 (2017)9.1km
Shullsburg1,210 (2017)9.3km
Cuba City2,055 (2017)11.4km


This large, rich zinc mine worked first between 1916 and 1926. The mine was later worked from the 1950's into the 1970's. Ore was mostly in pitch and flat structures in the Ordovician carbonate rocks of the Platteville, Decorah and Galena Formations.

Regions containing this locality

North America PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


4 valid minerals.

Detailed Mineral List:

Calcite
Formula: CaCO3
Reference: Rocks & Minerals 73:386-387
Galena
Formula: PbS
Reference: Heyl, A., Agnew, A., Lyons, E. & Behre C. JR, (1959), The geology of Upper Mississippi Valley Zinc-Lead District: U.S. Geological Survey Professional Paper 309, 310 p.
Marcasite
Formula: FeS2
Reference: Rocks & Min.:59:68.
Sphalerite
Formula: ZnS
Reference: Rocks & Minerals 73:386-387

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Galena2.CD.10PbS
Marcasite2.EB.10aFeS2
Sphalerite2.CB.05aZnS
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:2
Marcasite2.12.2.1FeS2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3

List of minerals for each chemical element

CCarbon
C CalciteCaCO3
OOxygen
O CalciteCaCO3
SSulfur
S MarcasiteFeS2
S GalenaPbS
S SphaleriteZnS
CaCalcium
Ca CalciteCaCO3
FeIron
Fe MarcasiteFeS2
ZnZinc
Zn SphaleriteZnS
PbLead
Pb GalenaPbS

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]

Ordovician
443.8 - 485.4 Ma



ID: 2922437
Sinnipee Group

Age: Ordovician (443.8 - 485.4 Ma)

Stratigraphic Name: Galena Formation; Decorah Formation; Platteville Formation

Description: Dolomite with some limestone and shale; includes Galena, Decorah, and Platteville 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:{dolostone}, Minor:{limestone,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

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
LaBerge, G. (1984), The geologic history of Wisconsin: Rocks and Minerals: 59(2): 60-73.
Heyl, A., Agnew, A., Lyons, E. & Behre, C. Jr. (1959), The geology of Upper Mississippi Valley Zinc-Lead District: U.S. Geological Survey Professional Paper 309; 206, 209-210 and 227.


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