The Soursat Complex in northwestern of Iran is part of the Sanandaj-Sirjan metamorphic belt. Three granitoid suites are present: Type I– syenogranite and deformed syenogranite; Type II– Turkeh Dare and Pichagchi plutons; and Type III– quartz porphyry. The granites can be assigned to a medium-K calc-alkaline to high-K calc-alkaline series. | The U-Pb age, geochemistry and tectonic significance of granitoids in the Soursat Complex, Northwest Iran