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): |
Polaris |
Political location(s): |
Canada; Province or state: Nunavut; Nearest community: Resolute Bay (150 km NW) |
NTS map data: |
068H08 (Riddle Point) |
Deposit clan (type): |
Mississippi Valley-type |
Deposit status: |
past producer; Status comments: 1981-2002 |
Geologic province: |
Arctic Archipelago |
Geologic subprovince: |
Arctic platform - Cornwallis fold belt |
Commodities: |
Zn; Pb |
Mineralization styles: |
massive replacement |
Geological ages: |
Late Ordovician (host rocks) Late Devonian (mineralization) |
Tectonic setting: |
continental platform (host rocks) |
Host rocks: |
(1) sedimentary; carbonate; Depositional setting: Shallow-water carbonatesIndividual lithologies: | dolostone | Host rock stratigraphy: | Thumb Mountain formation |
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Alteration signatures: |
illitization: illite; What was altered: smectite-chlorite kaolinitization: kaolinite; What was altered: smectite-chlorite clay alteration: kaolinite-illite; What was altered: smectite-chlorite chloritization: chlorite-corrensite; What was altered: smectite-chlorite |
Mineralogy: |
sphalerite, galena, marcasite, dolomite, calcite |
Radiometric ages: |
Object dated: ore; Age - Ma: 367; +7; -7; Dating method: Paleomagnetism; Concentrate: Whole ore; Source rock: Massive sulphide; Event dated: mineralization; Reference: Symons, D. T. A. ; Sangster, D. F., 1992: Late Devonian Paleomagnetic Age for the Polaris Mississippi Valley-Type Zn-Pb Deposit, Canadian Arctic Archipelago; Canadian Journal of Earth Sciences, Volume 29, p. 15 - 25
Object dated: mineralogy(1); Age - Ma: 366; +15; -15; Dating method: Rb-Sr; Concentrate: sphalerite; Source rock: Massive sulphide; Event dated: mineralization; Reference: Christensen, N.; Halliday, A. N.; Kesler, S. E., 1996: Rb-Sr Dating of Sphalerite and the Ages of Mississippi-Valley-Type Pb-Zn Deposits; 6, Section Dating of Mineralization, 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. 527 - 535 |
References: |
Christensen, N.; Halliday, A. N.; Kesler, S. E., 1996 |
Rb-Sr Dating of Sphalerite and the Ages of Mississippi-Valley-Type Pb-Zn Deposits |
6, Section Dating of Mineralization, 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. 527 - 535 |
Leach, D. L.; Sangster, D. F.; Kelley, K. D.; Large, R. R.; Garven, G.; Allen, C. R.; Gutzmer, J.; Walters, S., 2005 |
Supplement to sediment-hosted lead-zinc deposits: A global perspective |
Appendix, in One hundreth anniversary volume 1905-2005, Edited by Hedenquist, J. W.; Thompson, J. F. H.; Goldfarb, R. J.; Richards, J. P., Ecomomic geology, Society of Ecomonic Geologists, 1136 p |
Leach, D. L.; Sangster, D. F.; Kelley, K. D.; Large, R. R.; Garven, G.; Allen, C. R.; Gutzmer, J.; Walters, S., 2005 |
Sediment-hosted lead-zinc deposits: A global perspective |
in One hundreth anniversary volume 1905-2005, Edited by Hedenquist, J. W.; Thompson, J. F. H.; Goldfarb, R. J.; Richards, J. P., Ecomomic geology, Society of Ecomonic Geologists, 1136 p, p. 561 - 607 |
Randell, R. N., 1994 |
Geology of the Polaris Zn-Pb Mississippi Valley-Type Deposit, Canadian Arctic Archipelago |
PhD Thesis, University of Toronto, Department of Geology, 13 maps. |
Sharp, R. J.; Ste-Marie, C. P.; Lorenzini, C.; Leigh, K. E.; Dewing, K.; Heroux, Y.; Chagnon, A., 1995 |
A Field Guide to the Geology of the Polaris Mine, Little Cornwallis Island, Northwest Territories, Canada |
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. 19 - 37 |
Symons, D. T. A. ; Sangster, D. F., 1992 |
Late Devonian Paleomagnetic Age for the Polaris Mississippi Valley-Type Zn-Pb Deposit, Canadian Arctic Archipelago |
Canadian Journal of Earth Sciences, Volume 29, p. 15 - 25 |
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Production data: |
Report period: from 1981 until 2002; 20,106,555 metric ton ore; Provisional entry?: no; Yearly or summary?: SGrade-commodity information: | Zn: 13.39 percent Pb: 363 percent | Reference: Lydon, J. W., 2007: An overview of the economic and geological context of Canada's major mineral deposit types; in Mineral Deposits of Canada: a synthesis of major deposit types, district metallogeny, the evolution of geological provinces, and exploration methods, Edited by Goodfellow, W. D., Special Publication, Mineral Deposits Division, Geological Association of Canada, No. 5, 1061 p, p. 3 - 48 Percent weights allocated to deposit: 100.0%
Report period: from 1989-01-01 until 1989-12-31; 1,128,000 metric ton ore; Provisional entry?: no; Yearly or summary?: YGrade-commodity information: | Zn: 14.1 percent Pb: 3.5 percent | Reference: Ellis, C. E.; Hearn, K., 1990: Operating Mines; Chapter 2, in Mineral Industry Report, 1986-1987, Northwest Territories, Edited by Ellis, C. E., Indian and Northern Affairs Canada, Government of Canada, 284 p, p. 11 - 32 Percent weights allocated to deposit: 100.0%
Report period: from 1987-01-01 until 1987-12-31; 984,000 metric ton ore; Provisional entry?: no; Yearly or summary?: YWeight-commodity information: | Zn: 128,800 metric ton Pb: 26,545 metric ton | Reference: Ellis, C. E.; Hearn, K., 1990: Operating Mines; Chapter 2, in Mineral Industry Report, 1986-1987, Northwest Territories, Edited by Ellis, C. E., Indian and Northern Affairs Canada, Government of Canada, 284 p, p. 11 - 32 Percent weights allocated to deposit: 100.0%
Report period: from 1986-01-01 until 1986-12-31; 886,000 metric ton ore; Provisional entry?: no; Yearly or summary?: YWeight-commodity information: | Zn: 114,360 metric ton Pb: 25,100 metric ton | Reference: Ellis, C. E.; Hearn, K., 1990: Operating Mines; Chapter 2, in Mineral Industry Report, 1986-1987, Northwest Territories, Edited by Ellis, C. E., Indian and Northern Affairs Canada, Government of Canada, 284 p, p. 11 - 32 Percent weights allocated to deposit: 100.0% |
Resource data: |
Disclaimer - Reserves/Resource Data
Her Majesty the Queen in Right of Canada, represented by the Minister of Natural Resources (NRCan) does not warrant or guarantee the accuracy, completeness or fitness for any purpose of Reserve and Resource information (Data) contained in this database, including whether the Data is compliant with any securities regulations or standards, and NRCan does not assume any liability with respect to any damage or loss incurred as a result of the use made of the Data.
Resource and reserve figures are historical in nature. The Data source provided with each set of figures should be cited if the Data are re-reported. |
Estimate date: 1984; 22 million metric tons ore; Combined with production?: yes; Provisional entry?: yes; Resource category: provenGrade-commodity information: | Zn: 14 percent Pb: 4 percent Fe: 5 percent | Reference: Randell, R. N., 1994: Geology of the Polaris Zn-Pb Mississippi Valley-Type Deposit, Canadian Arctic Archipelago; PhD Thesis, University of Toronto, Department of Geology, 13 maps. Percent weights allocated to deposit: 100.0% |
Associated group(s): |
Cornwallis Lead-Zinc District (12) |