Writers : Calagari.A.A & pattrick.R.A.D and PoIya.D.A
Refference : Geosciences Scientific Quarterly Journal,No.:39-40,P.:79
Publishing Year : 1380

Abstract :
The magmatio suites in the Sungun area are a part of NW-SE trending Cenozoic magmatic bait of Iran. The Sungun porphyrles occur as stocks and dikes ranging in composition from quartz monzo-dlorlte through quartz monzonite and granodlorlte to granite. The stocks are dMdsd into two groups, I and II. The porphyry stock II. hosting the copper ore experienced intense hydro-tracturlng. jointing, and faulting. The mineralized porphyry stock H experienced multiple events of intense hydro-fracturing leading to the formation of stockwork-type and anastomozing velniete and micro-veinists of quartz, sulfides, carbonates, silicates, and sulfates. The veinlets are thought to have formed in three distinct, although continuous, hydro-fracturing stages. E-type quartz veinlets and micro-veinlets were formed during the early stage Quartz-sulfide, quartz-moly, chalcopyrite, pyrite, moiybdenite, dolomite, calcite, calcite-pyrite, and sericite veinlets and microveinlets wer! developed during the middle stage. Anhydrite (present gypsum), L-type quartz, chert, and some calcite and calcite-pyrite veinlets anc micro-veinlets characterize the late stage of hydro-fracturing processes.
Subject List : Copper