Analysis of Structural Control on Chahmesi Deposit, Miduke Area, SE Iran

Chahmesi vein type deposit in the Kerman porphyry copper belt is located in the southwest of the Miduk porphyry copper deposit. The complex of Eocene volcanic rocks outcropped in this area. Analysis of structural data in outside of Chahmesi deposit and comparison of structures in outside border with structures within this deposits reveals that the emplacement of main vein of this deposit has occurred in relationship to the extensional faults and the minor veins have located in related to the extensional-shear faults after the phase of main faulting.The extensional-shear faults had no effect on the emplacement of main vein and just caused a displacement of previously fractures. In the other hand these faults are faulted joints. The structures such as, pinch& swell structure, cohesive and incohesive fault rocks in crash zone and in addition the related symptoms with kinematic components shows the role of normal faulting in the emplacement of Chahmesi deposit. The map of specific resistivity shows that the emplacement of this deposit has occurred in a fault zone. The result of this study emphasizes. that the exploratory drilling should be designed based on structural analysis.