Porphyry copper (Cu-Au) deposit in Arad, Romania

Names and other identifiers

Tract name Apuseni Mountains (150pCu6003)
Site status deposit

Geographic location

Country Romania
State or province Arad
Geographic location 22.15, 46.266667
Geologic map unit 22.15, 46.266667
Nearby data

Geologic information

Deposit type Porphyry copper
Deposit subtype Cu-Au
Age determination method Geologic inference
Age range late Miocene
Age reference Singer and others (2008)
Minerals adularia, albite, alunite, anhydrite/gypsum, biotite, carbonate, chalcopyrite, chlorite, epidote, kaolinite/illite, magnetite, montmorillonite, pyrite, pyrophyllite, sericite
Associated rocks andesite porphyry, diorite, diorite porphyry, hornfels, andesite, pyroclastics
Tectonic setting postconvergence
Stratigraphic age late Miocene

Commodity and development information

Development status Prospect
Major commodities Cu, Au
Tonnage (Mt) 150Mt
Cu grade (%) 0.35%
Au grade (g/t) 0.6g/t
Contained copper 520,000t
Gold-Moly ratio -9999

Reference information

Comments Blind porphyry mineralization at 400 m depth.
Study area name Europe
References Berbeleac and others (1992); Berbeleac, Iliescu and others (1995); Berbeleac, Popa and others (1995); Ianovici and others (1984); Vlad (2007); Singer and others (2008)
Site reference Sutphin and others (2013)
Berbeleac, I., Neacsu, V., Zamirca, A., and Bratosin, I., 1992, Geochemistry and mineralogy of altered rocks and pyrites associated with the porphyry copper-gold mineralization of the Tertiary subvolcanic body from Talagiu, Zarand Mountains: Romanian Journal of Mineral Deposits, v. 75, p. 55–64.
Berbeleac, Ion; Iliescu, Dan; Andrei, Justin; Ciuculescu, Ovidiu; and Ciuculescu, Rodica, 1995, Relationships between alterations, porphyry copper-gold and base metal-gold hydrothermal vein mineralizations in Tertiary intrusions, Talagiu area, Zarand Mountains: Romanian Journal of Mineral Deposits, v. 76, p. 31–39.
Berbeleac, Ion, Popa, T., Marian, I., Iliescu, D., and Costea, C., 1995b, Neogene porphyry copper-gold and gold-bearing epithermal deposits in South Apuseni Mountains, Romania, in Congress of the Carpatho-Balkan Geological Association, 15th, Athens, Greece, September 17–20, 1995, Proceedings: Athens, Geological Society of Greece Special Publication 4, p. 665–670.
Ianovici, V., Neacsu, G., and Neacsu, V., 1984, Hydrothermal clays from the Neogene volcano of Talagiu (Apuseni Mountains): Review of Romanian Geology, Geophysics and Geography, v. 28, p. 5–17.
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/.Vlad, S., 2007, ‘Blind’ porphyry CuAu (Mo) mineralization of Romania and its variable peripheral expressions as veins and skarns, in Andrew, C.J., and Borg, G., eds., Mineral exploration and research—Digging deeper: Society for Geology Applied to Mineral Deposits (SGA) Biennial Meeting, 9th, Dublin, Ireland, August 20–23, 2007 [Proceedings], v. 1, p. 197–200. (Abstract also available at https://www.e-sga.org/index.php?id=231&tx_commerce_pi1%5BshowUid%5D=969&tx_commerce_pi1%5BcatUid%5D=39&cHash=914f662e0c.)