| چکیده انگلیسی مقاله |
The Kuh-Pang copper deposit is located in ~38 km NE of Saveh, within Eocene to Oligo–Miocene volcanic facies and between the middle parts of Urmia-Dokhtar subduction zone. The most important lithologic units of this area are andesite, basaltic-andesite, tuff, fine grain lithic tuff, rhyodacite, rhyolitic volcanic breccia and aglomerate. The volcanic rocks have sub-alkaline affinity and are tectonically placed within the calc-alkaline to high-k calcalkaline series. The tectonic setting indicates that rocks in the area belong to continental volcanic arcs. The ore has a similar stratigraphic unit within the volcanic facies as is stratabound. Ore textures include vein-veinlet, open space filling, replacement and laminated. Ore mineral paragenesis includes pyrite, chalcopyrite, bornite, chalcocite, digenite, covellite, malachite, azurite, hematite and Fe oxide and hydroxide. Wall-rock alteration is dominated by silicification, and then kaolinitization, carbonatization, sericitization, epidotization and to a lesser extent, chloritization. The ore mineralization is predominantly accompanied by silicification and carbonatization. Textures of pyrite together with replaced pyrite by Cu-sulfides texture in porphyritic andesite unit indicated two stages for copper mineralization in this district. Comparison of characteristics of mineralization in Kuh-Pang copper deposit with different types of copper deposits including tectonic setting, geologic setting, type of host and associated rocks, geometry, texture and structure, mineralogy, copper mineral paragenesis and alteration shows that Kuh-Pang copper deposit are similar to volcanic manto-type copper deposits |