بررسی تکوین پلوتونیسم کالکو آلکالن ، کالکو آلکالن پتاسیم دار و شوشونیتی با کانسار سازی مس (مولیبدن ، طلا ،نقره ) پورفیری در توده های نفوذی گرانیتوئیدی سنوزوئیک ایران

The Cenozoic (Oligo-Miocene) granitoid rocks occur along the Sahand- Bazman tectono - magmatic and  volcano- plutonic belt.The composition of the granitoid rocks is of  diorite ,monzonite, granodiorite and quartz monzonite and are associated with the important porphyry copper deposits such as Soungoun and Sarcheshmeh . Petrographical , geochemical and petrological studies indicate (K۲O/Na۲O>۰.۷) that most of the rocks are of potassic calkalkaline and shoshonitic affinity, which is related to a potassic – rich parental magma , generated by melting of the  phlogopite-bearing eclogite oceanic crust  at a depth of about ۲۰۰ kilometers in a subduction related arc.The potassic nature of the granitoid rocks is well-defined on the potassic and sericitic alteration haloes around the Iranian porphyry copper deposits.Gold –rich porphyry- hydrothermal copper deposits are formed from hydrothermal  fluids or solutions , generated by intense fractional crystallization of granitoid rocks under high oxygen fugacity and  at a depth of less than one kilometer.

کلید واژه ها: مس پترولوژی سایر موارد