University of Isfahan Petrological Journal 2228-5210 9 4 2019 02 20 Study of origin and petrogenesis of granitoid bodies of Soursat complex (Northwest of Takab): Whole- rock ‎geochemical and Sr-Nd isotopic evidences Study of origin and petrogenesis of granitoid bodies of Soursat complex (Northwest of Takab): Whole- rock ‎geochemical and Sr-Nd isotopic evidences 1 24 22977 10.22108/ijp.2018.105849.1047 FA Soraya Dadfar Department of Geology, Faculty of Science, Bu-Ali Sina University, Hamedan, Iran Farhad Aliani Bu -Ali Sina University Ali Akbar Baharifar Department of Geology, Payame noor University, Tehran, Iran Mohammad Hossein Zarrinkoub Department of Geology, University of Birjand, Birjand, Iran Journal Article 2016 08 18 The plutonic bodies in the Soursat complex are parts of the widespread plutonic bodies in the Sanandaj- Sirjan zone. Based on field observations and microscopic studies, the study area is dominated by hornblende gabbro, quartz diorite, monzodiorite, granodiorite, monzogranite and tonalite. According to  geochemical studies, the granitoids of Turke Dare and Khangholi are characterized by I-type nature, high K calc-alkaline, metaluminous composition and plotted on Volcanic Arc granite area (VAG) with ⁸⁷Sr/⁸⁶Sr(i) and εNd(t) values equal to 0.70448, -0.12.  The overall geochemical signatures represent that monzodiorites generated from magma that derived from mantle which subjected to assimilation and contamination processes. The Pichaghci, Hamzeh Ghasem and the Northeast Khangholi bodies are I-type, metaluminous to peraluminous and calc-alkaline which are plotted in the volcanic arc granite area (VAG) with ⁸⁷Sr/⁸⁶Sr(i) and εNd(t) values equal to 0.70529, -2.82. These  geochemical criteria indicate that the study granodiorites generated from mixing of  mantle-derived magma with crustal melts. The Ghare zagh and Ouch dare monzogranite bodies are S-type, peraluminous and calc-alkaline which are  plotted in continental- continental collision area with high values of ⁸⁷Sr/⁸⁶Sr (i) and εNd(t) equal to 0.94476, 0.879276 and -6.71, -6.61 representing that monzogranites originated from crustal melts. The Tonalite group is I-type, calc-alkaline, peraluminous, with low values of La/Yb, Sr/Y and Nb/Ta ratios and low fractionated patterns of rare earth elements (REE), negative anomaly of Eu. On the base of these data, it can be concluded that the group  resulted from amphibolitic crust that generated from thickened mafic crust or under plate basalts under  low pressures and low deep with the presence of plagioclase in the source area. The plutonic bodies in the Soursat complex are parts of the widespread plutonic bodies in the Sanandaj- Sirjan zone. Based on field observations and microscopic studies, the study area is dominated by hornblende gabbro, quartz diorite, monzodiorite, granodiorite, monzogranite and tonalite. According to  geochemical studies, the granitoids of Turke Dare and Khangholi are characterized by I-type nature, high K calc-alkaline, metaluminous composition and plotted on Volcanic Arc granite area (VAG) with ⁸⁷Sr/⁸⁶Sr(i) and εNd(t) values equal to 0.70448, -0.12.  The overall geochemical signatures represent that monzodiorites generated from magma that derived from mantle which subjected to assimilation and contamination processes. The Pichaghci, Hamzeh Ghasem and the Northeast Khangholi bodies are I-type, metaluminous to peraluminous and calc-alkaline which are plotted in the volcanic arc granite area (VAG) with ⁸⁷Sr/⁸⁶Sr(i) and εNd(t) values equal to 0.70529, -2.82. These  geochemical criteria indicate that the study granodiorites generated from mixing of  mantle-derived magma with crustal melts. The Ghare zagh and Ouch dare monzogranite bodies are S-type, peraluminous and calc-alkaline which are  plotted in continental- continental collision area with high values of ⁸⁷Sr/⁸⁶Sr (i) and εNd(t) equal to 0.94476, 0.879276 and -6.71, -6.61 representing that monzogranites originated from crustal melts. The Tonalite group is I-type, calc-alkaline, peraluminous, with low values of La/Yb, Sr/Y and Nb/Ta ratios and low fractionated patterns of rare earth elements (REE), negative anomaly of Eu. On the base of these data, it can be concluded that the group  resulted from amphibolitic crust that generated from thickened mafic crust or under plate basalts under  low pressures and low deep with the presence of plagioclase in the source area. https://ijp.ui.ac.ir/article_22977_bcb8f12f829966762787f8d96e0843ae.pdf