Abstract: In the investigation area, the basement area formed by Pontid Lower Basic Volcanic Complex of Jurassic- Lower Cretaceous age and is intruded by the Harşit Granitoid. The unit is covered by the Lower Harşit VolcanicComplex of Upper Cretaceous. This rock group comprises three phases independent of one another, begining wiyh volcanism and ending with sedimentation. The youngest volcanics in the area are the olivine - augite basalts of Neogeneage.The rocks belonging to the Pontid Lower Basic Volcanic Complex are in a geochemical character, which is generally calcalkalen, but rather, showing transition to tholeiite and indicating a primitive arc environment. The Harşit Granitoid has I-type, peraluminus, calcalkalen features and characterize an island arc environment that is getting mature.The rocks bellonging to the Lower Harişt Volcanic Complex are also related to the subduction and are calcalkalen in character.