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Yeoval

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Porphyry copper deposit in New South Wales, Australia

Names and other identifiers

GMRAP ID 568
Alternate names Goodrich, Crown, Cyclops, Lady Lizzie, Sovereign, Sterling
Tract name Yeoval (009pCu8003)
Site status deposit

Geographic location

Country Australia
State or province New South Wales
Geographic location 148.6432, -32.7283
Geologic map unit 148.6432, -32.7283
Nearby data
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Geologic information

Deposit type Porphyry copper
Age (Ma) 411Ma
Age determination method Rb-Sr
Age range 411 ±2 Ma
Age reference Ambler and Facer (1975)
Minerals albite, azurite/malachite, biotite, bornite, carbonates, chalcopyrite, chlorite, copper, digenite, epidote, galena, gold, K-feldspar, magnetite, molybdenite, prehnite, pyrite, scheelite, sericite, silver, sphene
Associated rocks andesitic volcanics, diorite, gabbro, pyroxenite, dacite, dacite porphyry, granodiorite porphyry, quartz monzonite, greenstone- to amphibolite-facies meta-andesite, andesitic tuff and breccia, rhyolite, diorite, gabbro, limestone, shale
Tectonic setting continental margin
Stratigraphic age Early Devonian

Commodity and development information

Development status Prospect
Major commodities Cu
Minor commodities Mo, Au, Ag
Tonnage (Mt) 13Mt
Cu grade (%) 0.38%
Mo grade (%) 0.012%
Au grade (g/t) 0.14g/t
Ag grade (g/t) 2.2g/t
Contained copper 49,000t
Gold-Moly ratio 12

Reference information

Comments Location, tonnage and grade of inferred resources from Geoscience Australia (2010); Ewers and others (2002) previously reported 20 Mt at 0.2% Cu, containing 40,000 t Cu + 300 t Cu produced. Veins, stockworks, disseminations; according to Ambler and Facer (1975), 27,000 t ore with 3% Cu and 15 g/t Au containing 800 t Cu and 0.4 t Au were mined; however, Jaireth and Miezitis (2004) reported production of only 300 t Cu and 0.159 t Au.
Study area name Australia
References Gulson (1972); Gulson and Bofinger (1972); Ambler and Facer (1975); Bowman and others (1983); Paterson and others (1983); Ewers and others (2002); Wyborn and others (1987); Singer and others (2008); Augur Resources Ltd. (2009); Geoscience Australia (2010); Jaireth and Miezitis (2004)
Site reference Bookstrom and others (2014)
Ambler, E.P., and Facer, R.A., 1975, A Silurian porphyry copper prospect near Yeoval, New South Wales: Australian Journal of Earth Sciences, v. 22, no. 2, p. 229–241. (Also available at http://dx.doi.org/10.1080/00167617508728891.)
Augur Resources Ltd., 2009, Maiden JORC resource estimate, Yeoval copper-gold-molybdenum-silver deposit: Augur Resources Ltd. Web page accessed 2010, at http://augur.com.au/Maiden%20Resource%Yeoval. [Web page no longer available.]
Bowman, H.N., Hobbs, J.J., and Barron, L.M., 1983, Goonumbla copper district northwest of Parkes: New South Wales Geological Survey Records, v. 21, no. 2, p. M11–M28.
Ewers, G.R., Evans, N., and Hazell, M., (Kilgour, B., comp.), 2002, OZMIN Mineral deposits database [Digital Datasets]: Canberra, Geoscience Australia, metadata accessed September 3, 2013, at http://www.ga.gov.au/meta/ANZCW0703003393.html.Geoscience Australia, 2010, Australian mines atlas: Geoscience Australia Web page accessed October 20–December 27, 2010, at http://www.australianminesatlas.gov.au/.Gulson, B.L., 1972, The high-K diorites and associated rocks of the Yeoval diorite complex, N.S.W.: Contributions to Mineralogy and Petrology, v. 35, p. 173–192. (Also available at http://dx.doi.org/10.1007/BF00371213.)Gulson, B.L., and Bofinger, V.M., 1972, Time differences within a calc-alkaline association: Contributions to Mineralogy and Petrology, v. 36, p. 19–26. (Also available at http://dx.doi.org/10.1007/BF00372831.)Jaireth, Subhash, and Miezitis, Yanis, 2004, OZPOT Geoprovince-scale assessment of mineral potential [1:2,500,000 scale GIS]: Canberra, Geoscience Australia Web page, accessed June 21–December 27, 2010, at http://www.australianminesatlas.gov.au/build/common/minpot.html.
Paterson, I. B. L., Bowman, H. N., and Hobbs, J. J., 1983, Yeoval copper-gold-molybdenum district: Geological Survey of New South Wales Records, v. 21, no. 2, p. M53–M73.
Singer, D.A., Berger, V.I., and Moring, B.C., 2008, Porphyry copper deposits of the world—Database and grade and tonnage models, 2008: U.S. Geological Survey Open-File Report 2008-1155, [45] p. and digital data, accessed December 31, 2013, at http://pubs.usgs.gov/of/2008/1155/.Wyborn, D., Turner, B.S., and Chappell, B.W., 1987, The Boggy Plain Supersuite—A distinctive belt of I-type igneous rocks of potential economic significance in the Lachlan fold belt: Australian Journal of Earth Sciences, v. 34, no. 1, p. 21–43. (Alsoavailable at http://dx.doi.org/10.1080/08120098708729392.)