Document Type : Original Research Paper


1 epartment of Geology, Faculty of basic sciences, University of Systan & Baluchestan, Zahedan, Iran

2 Department of Geology, Faculty of basic sciences, University of Systan & Baluchestan, Zahedan, Iran.

3 Department of Geology, Faculty of basic sciences, University of Systan & Baluchestan, Zahedan, Iran

4 Micro Analysis office, New Brunswick university, Fredericton, Canada.


Sungun Porphyry Copper Deposit is located about 130 km to the northeast of Tabriz, northeast Iran. This deposit contains 796 million tons of ore with 0.61% Cu, 0.01% Mo, 0.016 ppm Au, 9.75 ppm Bi and Re (0.09 wt% of molybdenite). This research studies the physico-chemical environment using the chemical properties of minerals of this deposit. This deposit is related to granodiorite-diorite dikes and granodiorite stock that intruded into sedimentary and volcanic rocks of Cretaceous and Eocene. Dominant alterations are potassic, phyllic, argillic and propylitic from center outward which are characteristics of continental margin porphyry copper deposits. Simultaneously with the supergene mineralization, an iron cap of iron oxides, iron hydroxides, copper oxides, sulfates, carbonates and copper phosphates were developed on top of the deposit and along the fractures. In conclusion, based on mineral chemistry, in 450 ºC and 0.5 kb pressure (PT condition of potassic zone), sulfur fugacity and pH is determined to be as: log¦S2=-18 to -24 an pH=2.5 to 7.5. In 350 ºC and 0.5 kb pressure (PT condition of phyllic zone), oxygen and sulfur fugacities are: logƒO2= -20 to -33 and log¦S2=-6 to -15.


Aoki, K. & Shiba, I., 1973- Pyroxenes from Inerzolite inclusions of Itinom e-gata, Japan. Lithos, 6: 41-51.
Barnes, H. L., 1967- Geo Chemistry of Hydrothermal Ore Deposits, 404-460 p.
Calagari, A. A., 1997- Geochemical, Stable isotope, noble gas, and fluid inclusion studies of mineralization and alteration at Sungun porphyry copper deposit, East Azarbaidgan, Iran: Implication for genesis, PhD Thesis, Manchester University, 537 p.
Calagari, A. A., Hosseinzadeh, GH., 2005- The mineralogy of copper-bring Skarn to the east of the Sungun-Chay river, East Azarbaidjan, Iran. Asian Earth Sciences.
Cepedal, A., Martin-Izard, A., Roguilon, R., Rodriguez, L., Spiering, E. & Gonzales-Nistal, S., 2000- Origin and evolution of the calcic and magnesian skarns hosting the El Valle-Boinas Copper-gold deposit, Asturias (Spain). Geochemical exploration, 71: 119-151.
Hezarkhani, A., Williams-Jones, A. E. & Gammons, C., 1998- Controls of altretion and mineralization in the Sungun porphyry copper deposit, Iran, Economic Geology, 93: 651-670.
Hezarkhani, A., Williams-Jones, A. E. & Gammons, C., 1999 - Factors controlling copper solubility and chalcopyrite deposition in the sungun porphyry copper deposit, Iran, Mineralium Deposita, 34: 770-783.
Hezarkhani, A., 2002- Mass changes during hydrothermal alteration /mineralization in a porphyry copper deposit, eastern Sungun, north western Iran, Department of Mining, Metallurgy and Petroleum Engineering, Amirkabir University, Asian Earth Sciences.
Hezarkhani, A., 2005- Petrology of the intrusive rocks within the Sungun Porphyry Copper Deposit,Azerbaijan, Iran, Department of Mining, Metaiiugy and Petroleum Enginering, Amirkabir University, Asian Earth Sciences.
Lowell, J. D., 1974- Variations in zoning patterns in porphyry copper deposits. Canadian Institute of mining and metallurgy Bulletin, 99 p.
Ohmoto, H. & Rye, R. O., 1979- Isotopes of sulfur and carbon, in New York, Rinehart and Winston, 509 p.
Parsons, A. B., 1933- The Porphyry copper, New York, 581 p.
Scott, S. D., 1973- Experimental calibration of the Sphalerite geobarometer., Economic Geology, 68: 466-474.