CANADIAN AND WORLD MINERAL DEPOSIT DATABASES
Geological Survey of Canada


Deposit number Country Location Names Commodities
76 Ireland (County Meath) 53.39.39 N -- 006.40.45 W Navan; Tara Zn; Pb
 
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): Navan; Tara
Political location(s): Ireland; Province or state: County Meath
Deposit clan (type): Mississippi Valley-type
Deposit (sub) types: Irish-type
Deposit status: producer; Status comments: At the time of data entry (Jan.,2002) mining operations were (temporarily?) suspended.
Commodities: Zn; Pb
Mineralization styles: bedded replacement; breccia cement; disseminated; cavity fill; internal sediments
Geological ages: Courceyan (host rocks)
Arundian (host rocks)
Chadian - Arundian (mineralization)
Tectonic setting: continental platform (host rocks)
Host rocks: (1) sedimentary; carbonate (Navan Group); Depositional setting: Shallow marine
Individual lithologies:micrite
calcarenite
Host rock stratigraphy:Pale Beds member

(2) sedimentary; carbonate; Depositional setting: Shallow marine
Individual lithologies:limestone conglomerate (shale matrix)
Host rock stratigraphy:Boulder Conglomerate member
Mineralogy: sphalerite, galena, freibergite, pyrargyrite, bournonite, boulangerite, semseyite, pyrite, marcasite, barite, calcite, dolomite
Radiometric ages: Object dated: ore; Age - Ma: 334; +3; -3; Dating method: Paleomagnetism; Concentrate: Whole ore; Source rock: ore; Event dated: mineralization; Reference: Symons, D. T. A., 2001: Paleomagnetic Dating of the Navan Zn-Pb Deposit, Ireland; in Boston 2001: A Geo-Odyssey; GSA Annual Meeting and Exposition Abstracts, Edited by Anonymous, Annual Meeting and Abstracts, Geological Society of America, 33-6, p. A-338
References:
Anderson, I. K.; Ashton, J. H.; Boyce, A. J.; Fallick, A. E.; Russell, M. J., 1998
Ore Depositional Processes in the Navan Zn-Pb Deposit, Ireland
Economic Geology, Volume 93, p. 535 - 563

Ashton, J. H.; Downing, D. T.; Finlay, S., 1986
The Geology of the Navan Zn-Pb Orebody
in Geology and Genesis of Mineral Deposits in Ireland, Edited by Andrew, C. J.; Crowe, R. W. A.; Finlay, S.; Pennell, W. M.; Pyne, J. F., Irish Association for Economic Geology, Cahill Printers, Ireland, 711 p, p. 243 - 280

Ashton, J. H., 1995
Guide to the Geology of the Navan Orebody
in Irish Carbonate-Hosted Zn-Pb Deposits, Commemorating the SEG 75th Anniversary, Guidebook for Field Conference May 13-19, 1995, Edited by Anderson, K.; Ashton, J.; Earls, G.; Tear, S., Guidebook Series, Society of Economic Geologists, Citizen Printing Co. Inc., Fort Collins, Colorado 80521, 21, 296 p, p. 151 - 169

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

Production data: Report period: from 1977 until 2001-06; 53.56 million metric tons ore; Provisional entry?: no; Yearly or summary?: S
Grade-commodity information:Zn: 8.39 percent
Pb: 2.07 percent
Reference: Verbruggen, K., 2001: A Review of Mining and Mineral Exploration in Ireland in 2001; in Irish Association for Economic Geology Annual Review 2001, Edited by Slowey, E., Annual Review, Irish Association for Economic Geology , 160 p, p. 49 - 53
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: 2000; 16.7 million metric tons ore; Combined with production?: no; Provisional entry?: no; Resource category: indicated
Grade-commodity information:Zn: 7.14 percent
Pb: 2.23 percent
Reference: McGurk, T.; Ashton, J.; Flynn, M., 2001: Tara Mines - The South West Extension Project; in Irish Association for Economic Geology Annual Review 2001, Edited by Slowey, E., Annual Review, Irish Association for Economic Geology , 160 p, p. 44 - 44
Percent weights allocated to deposit: 100.0%

Generated 2015-02-06 15:01:18 with GQuery -- 3.7 ADO (3.19..3.22 -- 2008-12-16)
GlobalDB System, Geological Survey of Canada, Natural Resources Canada