Abstract: Volcanic rocks cropping out around Denizli in Western Anatolia have been petrochemieally analysedand they have been correlated with the similar volcanics surrounding the region. Their origin and plate tectonicimplication have also been discussed. Upper Pliocene volcanics are shoshonitic type. They consist of shcshonitic basalt, latite and trachyte. Their petrochemical characteristics indicate that they have been formed by continentalrifting due to tensional forces acting on this sector of the Western Anatolia.