Abstract
Kerman region where Sarcheshmeh zone is located includes the end part of Uremia-Dokhtar Zone. Extrusive igneous group in Sarcheshmeh is as follows: 1) andesite and 2) rhyodacite. The group of intrusive igneous rocks includes 1) porphyry granite, 2) porphyry granodiorite, and 3) porphyry diorite. Nochoon mine is located at 4 km of southwest of Sarcheshmeh copper mine and it comprises of a group of extrusive igneous rocks as follows: 1) andesite, and 2) dacite. Based on results of microprobe analysis, pyroxene mineral’s composition in these rocks of diopside and augite indicates amphiboles of composite zone of magnesium hosting type and existing plagioclases in regional rock for labradorite and bitonit composition. The most common compounds are chlorite with formula among antigorite and amosite. Comparison of magnetite mineralization in Sarcheshmeh and Nochoon indicates vein mineralization in Nochoon and disseminated granulation in Sarcheshmeh and particularly concerning to chalcopyrite, Nochoon includes more veins than Sarcheshmeh.
Highlights
February 24, 2017 mia-Dokhtar zone and generally petrologic units in this system comprise of clastic igneous and volcano clastic rocks from Eocene epoch and in many regions, subvolcanic rocks at aged oligomiocene and volcanic rocks of quaternary sediments are accompanied with these formations
Due to absence of fossil in Sarcheshmeh zone, age of this system has been estimated by petrologic relations and comparison with similar structures in other zones
Composition of constituent minerals on regional rocks was determined according to the given results from Electron-Probe Micro Analysis (EPMA) by diagrams for determination of mineral compositions presented by different researchers
Summary
In this group, rocks have mainly volcanic origin. The group of intrusive igneous rocks includes: 1) monzogranite, 2) granodiorite, and 3) diorite and semi-deep igneous rocks consist of: 1) porphyry granite, 2) porphyry granodiorite, and 3) porphyry diorite
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