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Zarin-Kamar region is located north east of Shahrood (36o37'-36o42'N, 55007'-55012'E). Plutonic rocks in this area belongs to syenite group and their texture is intergranular hypidiomorphic. Volcanic rocks in the area have porphyritic, amygdale intersertal texture. which quartz is also seen among their cavities and porosities. Total concentration of REEs (ΣREE) in the study igneous rocks varies between 450 and 683 ppm. Diagram of Eu/Eu* versus Sr and Eu/Eu* versus Ba show negative anomalies ofdoi:10.22478/ufpb.2179-7137.2019v8n4.48442 fatcat:zz3muhd7vfanrm6vkgn6pcurvq