Wafi-Golpu Group

Porphyry copper (Cu-Au) Group in Morobe, Papua New Guinea

Names and other identifiers

Tract name Eastern Medial New Guinea Magmatic Belt, Subtract B (009pCu7203b)
Group name Wafi-Golpu Group
Included sites Wafi-Golpu deposit
Site status Group

Geographic location

Country Papua New Guinea
State or province Morobe
Geographic location 146.45, -6.883333
Geologic map unit 146.45, -6.883333
Nearby data

Geologic information

Deposit type Porphyry copper
Deposit subtype Cu-Au
Age (Ma) 9
Age determination method unknown
Age range 9 Ma
Age reference Singer and others (2008)
Minerals actinolite, alunite, apatite, biotite, bornite, carbonate, chalcocite/digenite, chalcopyrite, chlorite, covellite, diaspore, dickite, enargite/luzonite, epidote, goethite/limonite, gold, hematite/specularite, jarosite, kaolinite/illite/dickite, magnetite, molybdenite, pyrite, pyrophyllite, sericite, smectite, tetrahedrite/tennantite, tourmaline
Associated rocks andesite porphyry, breccia, dacite porphyry, diorite porphyry, quartz diorite porphyry, conglomerate, sandstone, shale
Tectonic setting postconvergence
Stratigraphic age Miocene

Commodity and development information

Development status Prospect
Major commodities Cu, Mo, Au
Tonnage (Mt) 540Mt
Cu grade (%) 0.9%
Mo grade (%) 0.01%
Au grade (g/t) 0.56g/t
Contained copper 4,900,000t
Gold-Moly ratio 60

Reference information

Comments This group record includes data for the Wafi-Golpu deposit.
Study area name Southeast Asia and Melanesia
References Andrew (1995); Corbett and Leach (1998); Freebrey (1998); Funnel (1990); Gillman (2004); Harmony Gold Mining Co. ( 2010); Newcrest Mining Ltd. (2010); Leach (1999); Lole (2005); Ryan and Vigar (1999); Tau-Loi and Andrew (1998); Singer and others (2008)
Site reference Hammarstrom and others (2013)
Andrew, R.L., 1995, Porphyry copper-gold deposits of the southwest Pacific: Mining Engineering, v. 47, no. 1, p. 33–38.
Corbett, G.J., and Leach, T.M., 1998, Southwest Pacific Rim gold-copper systems—Structure, alteration, and mineralization: Society of Economic Geologists Special Publication 6, 237 p.
Newcrest Mining Ltd., 2010, 2010 Resources and reserves statement: Newcrest Mining Limited Market Release, accessed January 10, 2011, at http://www.newcrest.com.au/upload/687_8x16x201091425AM.pdf.
Leach, T.M., 1999, Evolution of selected porphyry copper-gold systems in the northwest Pacific region and its relevance to exploration, in Weber, Graeme, ed., PACRIM ‘99 Congress—International Congress on Earth Science, Exploration and Mining around the Pacific Rim, Bali, Indonesia, October 10–13, 1999, Proceedings: Carlton, Australia, Australasian Institute of Mining and Metallurgy Publication Series no. 4/99, p. 211–225.
Lole, Howard, 2005, The exploration of potential mineral resources in Papua New Guinea: Pacific Economic Cooperation Coucil (PECC) Minerals Network Meeting (Mining economy—Development, and environmental protection), 3d, Taiyuan, Shanxi, China, September 9–11, 2005 [Proceedings], 26 p. (Also available at http://www.pecc.org/resources/doc_view/1295-the-exploration-of-potential-mineral-resources-in-papua-new-guinea-paper.)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/.