Porphyry copper (Cu-Au) deposit in Baluchistan, Pakistan

Names and other identifiers

Tract name Chagai (142pCu9013)
Group name Saindak Group
Included sites Saindak resource base includes East, North, and South orebodies
Site status deposit

Geographic location

Country Pakistan
State or province Baluchistan
Geographic location 61.615, 29.2506
Geologic map unit 61.615, 29.2506
Nearby data

Geologic information

Deposit type Porphyry copper
Deposit subtype Cu-Au
Age (Ma) 22.18Ma
Age determination method U-Pb zircon
Age range 22.18 ±0.2 Ma
Age reference Perelló and others (2008)
Minerals actinolite, anhydrite/gypsum, azurite/malachite, biotite, cerussite, chalcocite, chalcopyrite, chlorite, copper wad, cuprite, delafossite, epidote, galena, garnet, goethite/limonite, gold, hematite/specularite, jarosite, kaolinite, magnetite, molybdenite, montmorillonite, neotocite, pyrite, pyrrhotite, sericite, siderite, tourmaline
Associated rocks andesite porphyry, aplite, dacite, diorite porphyry, hornfels, lamprophyre, skarn, tonalite porphyry, andesite, agglomerate, limestone, mudstone, sandstone, shale, siltstone, quartz diorite, Amalaf Fm
Tectonic setting mixed
Stratigraphic age early Miocene

Commodity and development information

Development status Producer
Major commodities Cu
Minor commodities Au, Ag, Mo
Tonnage (Mt) 440Mt
Cu grade (%) 0.41%
Mo grade (%) 0.002%
Au grade (g/t) 0.5g/t
Contained copper 1,800,000t
Gold-Moly ratio 200

Reference information

Comments Cu-Au-(Mo) porphyry deposit; calcic calc-alkaline; open pit; in production.
Study area name Tethys
References Ahmad (1992); Ahmed and others (1972); Breitzman and others (1983); Kazmi and Qasim Jan (1997); Kirkham and Dunne (2000); Leaman and Staude (2002); Perelló and others (2008); Richards and others (2012); Sillitoe (1978); Sillitoe and Khan (1977); Singer and others (2008); U.S. Geological Survey (2012); Wikipedia (2013)
Site reference Zürcher and others (in press)
Ahmad, M.U., 1992, Porphyry copper in Pakistan: Pakistan Geological Survey Mineral Information Series 9, 21 p.
Ahmed, Waheeduddin; Khan, S.N.; and Schmidt, R.G., 1972, Geology and copper mineralization of the Saindak quadrangle, Chagai district, west Pakistan: U.S. Geological Survey Professional Paper 716-A, 21 p., scale 1:50,000. (Also available at, 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<253:FAOTCI>2.0.CO;2.)
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, Peter, and Staude, John-Mark, 2002, Metallogenic evolution of the western Tethys of Turkey and Iran, in Sugiuchi, N., ed., Mineral potential of Asia—A forum on Asian metallogeny and ore deposits, exploration and development potential, regulatory and investment climate, and management practicalities, Vancouver, Canada, January 21, 2002, Proceedings: Metal Mining Agency of Japan, p. 15–16, accessed September 13, 2012, at;jsessionid=B237BEFF620F81E2D5278DBD486EBBF7?doi=ó, 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, J.P.; Spell, Terry; Rameh, Esmaeil; Razique, Abdul; and Fletcher, Tim, 2012, High Sr/Y magmas reflect arc maturity, high magmatic water content, and porphyry Cu ± Mo ± Au potential—Examples from the Tethyan arcs of central and eastern Iranand western Pakistan: Economic Geology, v. 107, p. 295–332. (Also available at, R.H., 1978, Metallogenic evolution of a collisional mountain belt in Pakistan—A preliminary analysis: London, Journal of the Geological Society, v. 135, p. 377–387. (Also available at
Sillitoe, R.H., and Khan, S.N., 1977, Geology of Saindak porphyry copper deposit, Pakistan: Transactions of the Institution of Mining and Metallurgy, v. 86, p. B27–B42.
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 Geological Survey, 2012, Mineral resource data system (MRDS): U.S. Geological Survey database, accessed October 19, 2012, at, 2013, Saindak copper gold project: Wikipedia Web page accessed March 11, 2013, at