Copper Hill

Porphyry copper (Cu-Au) deposit in New South Wales, Australia

Names and other identifiers

GMRAP ID 570
Tract name Macquarie (009pCu8002)
Site status deposit

Geographic location

Country Australia
State or province New South Wales
Geographic location 148.8687, -33.0529
Geologic map unit 148.8687, -33.0529
Nearby data

Geologic information

Deposit type Porphyry copper
Deposit subtype Cu-Au
Age (Ma) 448Ma
Age determination method K-Ar hornblende
Age range 449 ±4 to 446 ±5 Ma
Age reference Perkins and others (1995); Cooke and others (2007)
Minerals azurite/malachite, barite, bornite, carbonate, chalcopyrite, chlorite, copper, covellite, enargite, epidote, galena, garnet, goethite, gold, gypsum, hematite, kaolinite/smectite, limonite, magnetite, merenskyite [(Pd,Pt)(Te,bismuth)2], molybdenite, montmorillonite, pyrite, pyroxene, sericite, sphalerite, tenorite, tetrahedrite, zeolite
Associated rocks porphyritic basalt to andesite, limestone, andesite porphry, dacite porphyry, feldspar porphyry, quartz diorite, skarn, basalt, dacite, andesite, conglomerate, graywacke, quartzite, sandstone, shale, limestone
Tectonic setting island arc
Stratigraphic age Late Ordovician–Early Silurian

Commodity and development information

Development status Past Producer
Major commodities Cu, Au
Tonnage (Mt) 133Mt
Cu grade (%) 0.32%
Au grade (g/t) 0.302g/t
Contained copper 420,000t
Gold-Moly ratio -9999

Reference information

Comments Location, tonnage and grade of reserves + measured + indicated resources from Geoscience Australia (2010). Exposed stockwork, stringers, disseminations, selvaged veins; production 1841 to1845 of 3,300 t of ore at 1.4% Cu (46 t Cu) from supergene zone; inner Mo, Ag, central Cu, outer Zn, Pb; 0.02 g/t Pd have been reported. Ore area 3.5 square km, alteration A axis 2.7 km, alteration B axis 1 km.
Study area name Australia
References Chivas and Nutter (1975); Scott (1978); Perkins and others (1995); Blevin (2002); Scott and Torrey (2003); Torrey and Burrell (2006); McInnes (2006); Coianiz and Burrell (2007); Cooke and others (2007); Singer and others (2008); Geoscience Australia (2010); Stanton-Cooke (2011); Golden Cross Resources (2011)
Site reference Bookstrom and others (2014)
Blevin, P.L., 2002, The petrographic and compositional character of variably K-enriched magmatic suites associated with Ordovician porphyry Cu-Au mineralization in the Lachlan fold belt, Australia: Mineralium Deposita, v. 37, p. 87–99. (Also available at http://dx.doi.org/10.1007/s00126-001-0232-9.)
Chivas, A.R., and Nutter, A.H., 1975, Copper Hill porphyry copper prospect, in Knight, C.L., ed., Economic Geology of Australia and Papua New Guinea—[Volume] 1. Metals: Australasian Institute of Mining and Metallurgy Monograph 5, p. 716–720.
Coianiz, Glenn, and Burrell, Paul, 2007, Golden Cross Resources Copper Hill project, 2007 update, in Mines and Wines Symposium—Mineral Exploration in the Tasmanides, Orange, New South Wales, September 20–21, 2007, Proceedings: Australian Institute ofGeoscientists Bulletin 46, p. 27–30, and Sydney Mineral Exploration Discussion Group presentation, 26 p., accessed September 3, 2013, at http://smedg.org.au/M&W07/Glenn%20Coianiz%20-%20Copper%20Hill%20Cu-Au%20porphyry.pdf.Cooke, D.R., Wilson, A.J., House, M.J., Wolfe, R.C., Walshe, J.L., Lickfold, Vanessa., and Crawford, A.J., 2007, Alkalic porphyry Au-Cu and associated mineral deposits of the Ordovician to Early Silurian Macquarie arc, New South Wales: Australian Journal of Earth Sciences, v. 54, p. 445–463. (Also available at http://dx.doi.org/10.1080/08120090601146771.)Geoscience Australia, 2010, Australian mines atlas: Geoscience Australia Web page accessed October 20–December 27, 2010, at http://www.australianminesatlas.gov.au/.Golden Cross Resources, 2011, Copper Hill: Golden Cross Resources Web page accessed January 26, 2012, at http://www.goldencross.com.au/projects/australian-projects/copper-hill/.McInnes, B., 2006, New South Wales, in Exploration reviews, Australasia: Society of Economic Geologists Newsletter, no. 67, p. 35. (Also available at http://www.segweb.org/pdf/publications/newsletters/2006/SEG-Newsletter-67-2006-October.pdf.)Perkins, Caroline, Walshe, J.L., and Morrison, Gregg, 1995, Metallogenic episodes of the Tasman fold belt system, eastern Australia: Economic Geology, v. 90, p. 1443–1466. (Also available at http://dx.doi.org/10.2113/gsecongeo.90.6.1443.)Scott, K.M., 1978, Geochemical aspects of the alteration-mineralization at Copper Hill, New South Wales, Australia: Economic Geology, v. 73, p. 966–976. (Also available at http://dx.doi.org/10.2113/gsecongeo.73.5.966.)Scott, K.M., and Torrey, C.E., 2003, Copper Hill porphyry Cu-Au prospect, central NSW, in Butt, C.R.M, Cornelius, M., Scott, K.M., and Robertson, I.D.M., comps., Regolith expression of Australian ore systems—A compilation of geochemical case histories and conceptual models: Cooperative Research Centre for Landscape Environments and Mineral Exploration (CRC LEME), 3 p., accessed January 26, 2012 at http://crcleme.org.au/RegExpOre/CopperHill.pdf.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/.Stanton-Cook, Kim, 2011, Golden Cross Resources Copper Hill porphyry Cu-Au deposits: Sydney Mineral Exploration Discussion Group presentation, [61] p., accessed January 26, 2012, at http://smedg.org.au/Kim_Stanton-Cook_Copper_Hill.pdf.Torrey, Chris, and Burrell, Paul, 2006, Geology and mineralization, Copper Hill, Molong, NSW, in Mines and Wines Symposium 2006—Mineral exploration in the Tasmanides, Orange, New South Wales, May 25–26, 2006, Proceedings: Sydney Mineral ExplorationDiscussion Group presentation, 27 slides, accessed July, 22, 2010, at http://www.smedg.org.au/M&WProg.htm. (Also available at http://www.smedg.org.au/Burr.ppt.)