CANADIAN AND WORLD MINERAL DEPOSIT DATABASES
Geological Survey of Canada


Deposit number Country Location Names Commodities
43 Australia (Western Australia) 18.37.48 S -- 125.52.48 E Twelve Mile Bore 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): Twelve Mile Bore
Political location(s): Australia; Province or state: Western Australia
Deposit clan (type): Mississippi Valley-type
Deposit status: deposit
Commodities: Zn; Pb
Mineralization styles: porosity fill; discordant collapse breccia cement
Geological ages: Late Devonian (host rocks)
Tectonic setting: continental rift (host rocks)
Host rocks: (1) sedimentary; carbonate; Depositional setting: Shallow-water carbonates
Individual lithologies:dolostone
Mineralogy: sphalerite, galena, marcasite, calcite
Radiometric ages: Object dated: mineralogy(4); Age - Ma: 351; +15; -15; Dating method: U-Pb; Concentrate: calcite; Source rock: ore; Event dated: mineralization; Reference: Brannon, J. C.; Cole, S. C.; Podosek, F. A. ; Ragan, V. M.; Coveney, Jr., R. M.; Wallace, M. W.; Bradley, A. J., 1996: Th-Pb and U-Pb Dating of Ore-Stage Calcite and Paleozoic Fluid Flow; Science, Volume 271, p. 491 - 493
References:
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

Vearncombe, J. R.; Chisnall, A. W.; Dentith, M. C.; Dorling, S. L.; Rayner, M. J.; Holyland, P. W., 1996
Structural Controls on Mississippi Valley-Type Mineralization, the Southeast Lennard Shelf, Western Australia
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. 74 - 95

Vearnecombe, J. R., 1995
Other MVT Deposits
6, in Zinc-Lead Mineralization on the Southeast Lennard Shelf, Canning Basin, Western Australia, 75th Anniversary Guidebook, June 15-23, 1995, Edited by Vearncombe, J. R.; Dorling, S. L.; Dentith, M. C.; Chisnall, A. W.; Christensen, J. N.; McNaughton, N. J.; Playford, P. E.; Rayner, M. J.; Reed, A. R., Guidebook Series, Society of Economic Geologists, Cirizen Printing Co., Inc., 1309 Webster Avenue, Fort Collins, Colorado 80521, Vol 23, 218 p, p. 136 - 139

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: 1995; 2.4 million metric tons ore; Combined with production?: no; Provisional entry?: no; Resource category: proven
Grade-commodity information:Zn: 10.1 percent
Pb: 2.7 percent
Reference: Vearnecombe, J. R., 1995: Other MVT Deposits; 6, in Zinc-Lead Mineralization on the Southeast Lennard Shelf, Canning Basin, Western Australia, 75th Anniversary Guidebook, June 15-23, 1995, Edited by Vearncombe, J. R.; Dorling, S. L.; Dentith, M. C.; Chisnall, A. W.; Christensen, J. N.; McNaughton, N. J.; Playford, P. E.; Rayner, M. J.; Reed, A. R., Guidebook Series, Society of Economic Geologists, Cirizen Printing Co., Inc., 1309 Webster Avenue, Fort Collins, Colorado 80521, Vol 23, 218 p, p. 136 - 139
Percent weights allocated to deposit: 100.0%
Associated group(s): Lennard Shelf District (5)

Generated 2015-02-06 15:00:53 with GQuery -- 3.7 ADO (3.19..3.22 -- 2008-12-16)
GlobalDB System, Geological Survey of Canada, Natural Resources Canada