Deposit number | Country | Location | Names | Commodities |
16 | United States (Wisconsin) / United | 42.27.00 N -- 090.25.12 W | Upper Mississippi Valley District | Zn; Pb; Cu; pyrite; barite |
Database name: | World Mississippi Valley-type deposits | ||||
Custodial agency: | Geological Survey of Canada | ||||
Compilers: | D. F. Sangster | ||||
Release date: | 2015-02-06 | ||||
Deposit name(s): | Upper Mississippi Valley District | ||||
Political location(s): | United States; Province or state: Wisconsin United States; Province or state: Iowa United States; Province or state: Illinois | ||||
Deposit clan (type): | Mississippi Valley-type | ||||
Deposit status: | past producer | ||||
Deposit object located: | centroid of district | ||||
Commodities: | Zn; Pb; Cu; pyrite; barite | ||||
Mineralization styles: | veins | ||||
Geological ages: | Middle Ordovician (host rocks) | ||||
Tectonic setting: | continental basin-intracratonic (host rocks) | ||||
Host rocks: | (1) sedimentary; carbonate; Depositional setting: Shallow marine
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Alteration signatures: | silicification: silicification; What was altered: dolostone dolomitization: dolomitization; What was altered: dolostone | ||||
Mineralogy: | quartz, dolomite, pyrite, marcasite, barite, sphalerite, cobaltite, galena, chalcopyrite, millerite (veins): calcite | ||||
Radiometric ages: | Object dated: mineralogy(6); Age - Ma: 269; +4; -4; Dating method: Rb-Sr; Concentrate: sphalerite; Source rock: Massive sulphide; Event dated: mineralization; Interpretive comment: West Hayden orebody ; Reference: Brannon, J. C.; Cole, S. C.; Podosek, F. A.; Misra, K., 1995: Radiometric Dating of Ancient Calcite: Th-Pb and U-Pb Isochrons for Ore-Stage and Late-Stage Calcite from the Central Tennessee Zinc District, an Appalachian-Ouachita Age MVT Deposit; in Abstracts With Programs, Geological Society of America, Edited by Anonymous, Annual Meeting, Geological Society of America, 27, p. A-118 Object dated: mineralogy(6); Age - Ma: 269; +9; -9; Dating method: Rb-Sr; Concentrate: sphalerite; Source rock: Massive sulphide; Event dated: mineralization; Interpretive comment: West Hayden orebody; Reference: Brannon, J. C.; Cole, S. C.; Podosek, F. A.; Misra, K., 1995: Radiometric Dating of Ancient Calcite: Th-Pb and U-Pb Isochrons for Ore-Stage and Late-Stage Calcite from the Central Tennessee Zinc District, an Appalachian-Ouachita Age MVT Deposit; in Abstracts With Programs, Geological Society of America, Edited by Anonymous, Annual Meeting, Geological Society of America, 27, p. A-118 Object dated: mineralogy(6); Age - Ma: 277; +20; -20; Dating method: Rb-Sr; Concentrate: sphalerite; Source rock: Massive sulphide; Event dated: mineralization; Interpretive comment: McNulty orebody; Reference: Brannon, J. C.; Cole, S. C.; Podosek, F. A.; Misra, K., 1995: Radiometric Dating of Ancient Calcite: Th-Pb and U-Pb Isochrons for Ore-Stage and Late-Stage Calcite from the Central Tennessee Zinc District, an Appalachian-Ouachita Age MVT Deposit; in Abstracts With Programs, Geological Society of America, Edited by Anonymous, Annual Meeting, Geological Society of America, 27, p. A-118 Object dated: mineralogy(11); Age - Ma: 156; Dating method: U-Pb; Concentrate: calcite; Source rock: ore; Event dated: post-ore mineralization; Interpretive comment: Dated post-ore calcite; Reference: Brannon, J. C.; Podosek, F. A.; McLimans, R. K., 1993: Age and Isotopic Composition of Gangue Versus Ore Minerals in the Upper Mississippi Valley Zn-Pb District; in Geology and Geochemistry of Mississippi Valley-Type Ore Deposits, Edited by Shelton, K.; Hagni, R., Proceedings Volume, University of Missouri, Rolla Press, p. 95 - 103 | ||||
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Production data: | Report period: from 1800 until 1954; Provisional entry?: no; Yearly or summary?: S
Percent weights allocated to deposit: 100.0% Report period: from 1859 until 1952; 44,331,543 short ton ore; Provisional entry?: no; Yearly or summary?: S
Percent weights allocated to deposit: 100.0% |