University of Isfahan Petrological Journal 2228-5210 7 26 2016 06 21 Petrology, geochemistry and tectonic setting of the Kolah Ghazi granitoid (southeast of Isfahan) Petrology, geochemistry and tectonic setting of the Kolah Ghazi granitoid (southeast of Isfahan) 45 64 20841 10.22108/ijp.2016.20841 FA Marzieh Bayati School of Geology, College of Sciences, University of Tehran, Tehran, Iran Dariush Esmaili School of Geology, College of Sciences, University of Tehran, Tehran, Iran Seyedeh Fatemeh Fadavi Department of Geology, Faculty of Earth Sciences, Shahid Beheshti University, Tehran, Iran Yousef Vesali School of Geology, College of Sciences, University of Tehran, Tehran, Iran Reza Maghdour Mashhour School of Geology, College of Sciences, University of Tehran, Tehran, Iran Journal Article 2016 11 26 The Kolah Ghazi granitoid is one of the main upper Jurassic intrusion in the Sanandaj-Sirjan zone which intruded Jurassic shale and overlaid by Lower Cretaceous strata’s. The intrusion consists of the monzogranites, granodiorites, Syenogranites, aplitic dykes associate with several tourmaline veins in three separated outcrops. Based on petrographic studies quartz, plagioclase, biotite and alkali feldspar are present as the major minerals and andalusite, sphene, tourmaline, garnet, sillimanite, spinel, kyanites constitute minor mineral phases. Geochemical results show high-K calc-alkaline and peraluminous affinities and S-type. The Kolah Ghazi granitoid belong to subduction-related volcanic arc magmatism, which related to middle Cimmerian compression movement which derived from Partial melting of metapelites in the upper crust materials and emplaced at depths (about 20-30 Km) under low water-vapor pressure (0.5-1 Kbar) and temperature range (in 750 °C) The Kolah Ghazi granitoid is one of the main upper Jurassic intrusion in the Sanandaj-Sirjan zone which intruded Jurassic shale and overlaid by Lower Cretaceous strata’s. The intrusion consists of the monzogranites, granodiorites, Syenogranites, aplitic dykes associate with several tourmaline veins in three separated outcrops. Based on petrographic studies quartz, plagioclase, biotite and alkali feldspar are present as the major minerals and andalusite, sphene, tourmaline, garnet, sillimanite, spinel, kyanites constitute minor mineral phases. Geochemical results show high-K calc-alkaline and peraluminous affinities and S-type. The Kolah Ghazi granitoid belong to subduction-related volcanic arc magmatism, which related to middle Cimmerian compression movement which derived from Partial melting of metapelites in the upper crust materials and emplaced at depths (about 20-30 Km) under low water-vapor pressure (0.5-1 Kbar) and temperature range (in 750 °C) https://ijp.ui.ac.ir/article_20841_579f4c9edeaa581d67010c1f926eb9a1.pdf