Database name: |
World Mississippi Valley-type deposits |
Custodial agency: |
Geological Survey of Canada |
Compilers: |
D. F. Sangster |
Release date: |
2015-02-06 |
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Deposit name(s): |
Central Tennessee District |
Longitude / Latitude: |
-85.94300 / 36.19700 |
Political location(s): |
United States; Province or state: Tennessee |
Deposit clan (type): |
Mississippi Valley-type |
Deposit status: |
producer |
Deposit object located: |
centroid of district |
Commodities: |
Zn; Pb |
Mineralization styles: |
discordant collapse breccia cement; disseminated; veins |
Geological ages: |
Early Ordovician (host rocks) |
Tectonic setting: |
continental platform (host rocks) |
Host rocks: |
(1) sedimentary; carbonate; Depositional setting: Shallow-water carbonatesIndividual lithologies: | limestone |
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Alteration signatures: |
silicification: silicification; What was altered: limestone dolomitization: dolomitization; What was altered: limestone |
Mineralogy: |
sphalerite, dolomite, calcite, fluorite, barite, galena, quartz |
Radiometric ages: |
Object dated: ore; Age - Ma: 249; +9; -9; Dating method: Paleomagnetism; Concentrate: Whole ore; Source rock: ore; Event dated: mineralization; Reference: Lewchuk, M. T.; Symons, D. T. A., 1996: Paleomagnetism and Mississsippi Valley-Type Ore Genesis in the Ordovician Knox Supergroup of Central Tennessee; in Carbonate-Hosted Lead-Zinc Deposits, Seventy-Fifth Anniversary Volume, Edited by Sangster, D. F., Special Publication, Society of Economic Geologists, 4, 664 p, p. 567 - 576
Object dated: mineralogy(3); Age - Ma: 260; +42; -42; Dating method: Th-Pb; Concentrate: calcite; Source rock: ore; Event dated: mineralization; 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(3); Age - Ma: 35; +14; -14; Dating method: U-Pb; Concentrate: calcite; Source rock: ore; Event dated: post-ore mineralization; Interpretive comment: Post-ore calcite dated ; 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 |
References: |
Gaylord, W. B.; Briskey, J. A., 1983 |
Geology of the Elmwood and Gordonsville Mines, Central Tennessee Zinc District |
in Tennessee Zinc Deposits Field Trip Guide Book, March 9-11, 1983 , Edited by Anonymous, Guide Book, Virginia Tech Department of Geological Sciences, Society of Economic Geologists, 9, p. 116 - 151 |
Gaylord, W. B., 1995 |
Geology of the Elmwood and Gordonsville Mines, Central Tennessee Zinc District - An Update |
Part IV, Section Fluorite and Zinc Deposits, Illinois and Tennessee, in Carbonate-Hosted Lead-Zinc-Fluorite-Barite Deposits of North America, Society of Economic Geologists 75th Anniversary Guidebook, June 3-6, 1995, Edited by Misra, K. C., Guidebook Volume, Society of Economic Geologists, Cirizen Printing Co., Inc., 1309 Webster Avenue, Fort Collins, Colorado 80521, 22, 254 p, p. 173 - 205 |
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Associated mine(s): |
Elmwood (1), Gordonsville (2), South Carthage (3) |