Abstract
ABSTRACT Eocene to Quaternary calc-alkaline volcanic and intrusive rocks are exposed in Shahrab area in the Urumieh-Dokhtar magmatic belt in the Central Iran structural zone. Data on the geology, petrography, alteration, and geochemistry of rocks are presented. These rocks have compositions ranging from basaltic andesites to dacites and granodiorite. Geochemical studies show that these rocks are calc-alkaline suite and meta-aluminous. Based on field and mineralogical studies, five zones of alteration (propyllitic, carbonatization, Fe oxide, silicified, and argillic) are seen in the volcanic wall rocks. Geochemistry, mineralogy, and petrology properties of Shahrab volcanic rocks attributed to a subduction-related magmatic zone.
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