Petrology and Origin of Intrusive Masses of Zaker Located in NE of Zanjan
Petrology and Origin of Intrusive Masses of Zaker Located in NE of Zanjan作者机构：Department of Geology Faculty of Sciences North Tehran Branch Islamic Azad University Tehran Iran Department of Geology Faculty of Sciences Science and Research Branch Islamic Azad University Tehran Iran
出 版 物：《Open Journal of Geology》 (地质学期刊（英文）)
年 卷 期：2017年第7卷第7期
页 面：1000-1011页
学科分类：0709[理学-地质学] 081803[工学-地质工程] 07[理学] 08[工学] 0818[工学-地质资源与地质工程]
主 题：Petrology Granite Alborz Partial Melting Iran
摘 要：The study area, in east of Zanjan, with NW-SE trend exposed and structurally is located in Alborz-Azarbaijan zone and Tarom subzone. The mass composition is in monzogranite, quartz-monzonite, monzonite, quartz-monzodiorite and monzodiorite range. It belongs to high K calc-alkaline to Shoshsonitic magmatic series. According to the geochemistry and petrogenesis results, partial melting of magma has been the important controlling process of rock variety in the study area. All samples have negative anomalies of Nb that is related to subduction and active continental coastline zones as well as high anomalies of K, Rb and Ba explaining the role of continental crust or contamination with the continental crust. Granitic volcanic arc related environments and syenite alkali feldspar masses reflect the granite mass within the plate. Monzonites and diorites point to the volcanic arc and syenite and granite masses show within the plate environments.
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