Writers : Firouzi.Kh.Bahar & Yaqubpour.A and Mehrpartou.M
Refference : Geosciences Scientific Quarterly Journal,No.:31-32,P.:16
Publishing Year : 1378

Abstract :

The Sungun deposit is situated in Alborz - Azarbayejan magmatic belt, northwest Iran. This deposit is a skarn porphyritic copper-molybdenum type which skarn member had been exploited from ancient time, but the porphyric part has been intruduced first by H. Etminan (1977). The principle agent of mineralization is a subvolcanic stock with granodioritic composition that disseminated veinlet mineralization occured in it and in skarn member adjacent of it.
Potassic - Phyllic, phyllic - carbonate, argillic and propylitic alteration, characteristic of continental margin type porphyry copper deposits is well mapped. Two kinds of Potassic alteration, in adjacent to skarn (wtihout mineralization) and in deep part of deposit (with a
good disseminated and veinlet mineralization) is distinguished. Phyllic alteration with abundant veinlet mineralization is well developed argillic alteration is very limited and prophylitic alteration occurred in north and south of deposit.
Supergen enrichment processes is not well developed in Sungun and secondary sulfide minerals of copper is formed only as thin fihT around or in the fractures of primary sulfide mineral in upper parts of deposit.
Chemical and mineralographical investigation of samples from supergen zones, that recorded in logging files of boreholes show that the typical supergen ore is formed in a few meter thickness (<5m) in some places, then the supergen reserves of Sungun deposit is ver! low(Probably < 10 rn.t).

Subject List : Copper