Porphyry copper deposit in Baluchistan, Pakistan

Names and other identifiers

Tract name Chagai (142pCu9013)
Site status deposit

Geographic location

Country Pakistan
State or province Baluchistan
Geographic location 64.604, 29.556
Geologic map unit 64.604, 29.556
Nearby data

Geologic information

Deposit type Porphyry copper
Age (Ma) 31.6Ma
Age determination method unknown
Age range 31.6 Ma
Age reference Ahmad and others (1986)
Minerals anhydrite, azurite/malachite, biotite, bornite, carbonate, chalcocite, chalcopyrite, chlorite, chrysocolla, copper, covellite, cuprite, delafossite, enargite, epidote, galena, goethite/limonite, gold, hematite, jarosite, kaolinite, limonite, magnetite, molybdenite, montmorillonite, neotocite, pyrite, pyrrhotite, rutile, sphalerite, tenorite, titanomagnetite
Associated rocks breccia, tonalite porphyry, granite, andesite, andesite agglomerate, diorite, granodiorite, quartz monzonite, tuff, tuffaceous conglomerate, quartz diorite, granodiorite and granite of Chagai batholith, agglomerate, conglomerate, ash, tuff, sandstone, shale, minor limestone
Tectonic setting mixed
Stratigraphic age early Oligocene

Commodity and development information

Development status Prospect
Major commodities Cu, Mo
Tonnage (Mt) 350Mt
Cu grade (%) 0.3%
Mo grade (%) 0.001%
Contained copper 1,000,000t
Gold-Moly ratio -9999

Reference information

Comments Cu-Mo-Au porphyry deposit; calcic calc-alkaline; exploration, drilling.
Study area name Tethys
References Ahmad (1986); Ahmad (1992); Ahmad and others (1986); Breitzman and others (1983); Everest Gold Inc. (2012); Kazmi and Qasim Jan (1997); Kirkham and Dunne (2000); Perelló and others (2008); Singer and others (2008)
Site reference Zürcher and others (in press)
Ahmad, M.U., 1986, Dasht-e-Kain porphyry copper prospect in context of the metallogeny of Chagai calc-alkaline volcano-intrusive complex, Chagai district (Baluchistan) Pakistan: Ph.D. thesis, [unknown] p.
Ahmad, M.U., 1992, Porphyry copper in Pakistan: Pakistan Geological Survey Mineral Information Series 9, 21 p.
Ahmad, Mahmooduddin, Siddiqui, R.H., and Chaudhary, M.A., 1986, Geological and geochemical exploration and preliminary evaluation of Dasht-e-Kain porphyry copper-molybdenum prospect, Ch?gai District, Baluchistan, Pakistan: Pakistan Geological Survey Economic Geology Record, v. 72, 44 p.
Breitzman, L.L., Birnie, R.W., and Johnson, G.D., 1983, Fission-track ages of the Chagai intrusives, Baluchistan, Pakistan: Geological Society of America Bulletin, v. 94, p. 253–258. (Also available at http://dx.doi.org/10.1130/0016-7606(1983)94<253:FAOTCI>2.0.CO;2.)Everest Gold Inc., 2012, Exploring the Tethyan copper gold belt—The world’s next major copper belt (2012 draft ed.): Everest Gold Inc. Corporate Presentation, 24 slides, accessed August 27, 2012, at http://www.everestgoldinc.com/Default.aspx. (Also available at http://www.everestgoldinc.com/cmsAssets/docs/Everest_Corporate_Presentation_Feb_2012.ppt.)
Kazmi, A.H., and Qasim Jan, M., 1997, Geology and tectonics of Pakistan: Karachi, Graphic Publishers, 554 p.
Kirkham, R.V., and Dunne, K.P.E., comps., 2000, World distribution of porphyry, porphyry-associated skarn, and bulk-tonnage epithermal deposits and occurrences: Canada Geological Survey Open File 3792a, 26 p. and 1 diskette. (Also available at http://dx.doi.org/10.4095/211229.)Perelló, José; Razique, Abdul; Schloderer, John; and Asad-ur-Rehman, 2008, The Chagai porphyry copper belt, Baluchistan Province, Pakistan: Economic Geology, v. 103, p. 1583–1612. (Also available at http://dx.doi.org/10.2113/gsecongeo.103.8.1583.)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/.