CANADIAN AND WORLD MINERAL DEPOSIT DATABASES
Geological Survey of Canada


Deposit number Country Location Names Commodities
71 Ireland (County Limerick) 52.38.16 N -- 008.58.57 W Courtbrown Zn; Pb; Ag
 
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): Courtbrown
Political location(s): Ireland; Province or state: County Limerick
Deposit clan (type): Mississippi Valley-type
Deposit (sub) types: Irish-type
Deposit status: deposit; Status comments: Drilled only
Commodities: Zn; Pb; Ag
Mineralization styles: disseminated; massive replacement; veins
Geological ages: Courceyan (host rocks)
Tectonic setting: continental platform (host rocks)
Host rocks: (1) sedimentary; carbonate; Depositional setting: Shallow marine
Individual lithologies:micrite ("Mudbank Reef")
Host rock stratigraphy:Waulsortian limestone member

(2) sedimentary; carbonate (Mudstone-carbonate); Depositional setting: Shallow marine
Individual lithologies:micrite (With shale partings; a subunit within Waulsortion Limestone)
Host rock stratigraphy:Transition Reef member

(3) sedimentary; carbonate; Depositional setting: Shallow marine
Individual lithologies:muddy Limestone (Upper Ballysteen)
Host rock stratigraphy:Ballysteen Limestone member
Mineralogy: sphalerite, galena, pyrite, chalcopyrite, tennantite, arsenopyrite
References:
Grennan, E. F., 1986
Geology and Genesis of the Courtbrown Pb-Zn-Ag Deposit
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. 449 - 456

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

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: 1980; 1 million metric tons ore; Combined with production?: no; Provisional entry?: no; Resource category: probable
Grade-commodity information:Zn: 3.5 percent
Pb: 2 percent
Ag: 14 grams/metric ton
Reference: Grennan, E. F., 1986: Geology and Genesis of the Courtbrown Pb-Zn-Ag Deposit; 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. 449 - 456
Percent weights allocated to deposit: 100.0%

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