ABSTRACT: Devonian and Jurassic aged metamorphicrocks occur in the studied area. The igneous rocks intruded during the Eocene and Oligocène have affected the Permian limestones, and the skaras been formed metasomatically at this contact. There is a zoning in the éimns comprising the pyroxene-skarns adjacent to igneous rocks and the prnet-skarns adjacent to limestones. The pyroxene-skarns are consisting mainly of diopside and hedenberpte; the garnet-itarns mainly of possukrite and andradite. The Karamadazı contact-metasomatic magnetite deposit is found in this skarn belt. Magnetite is the main ore mineral. Pyrite, chalcopyrite, pyrrhotite seen with the lower quantity, The possible origin of the iron is in the intrusive body, and carried as ferrous-chlorides in the acidic hydrous solutions. The magnetite deposit had been formed by the reactions between the ferrous-chloride bearing=solution and tlie limestone in the oxidizing phase of the metasomatism, The sulfide minerals, however, formed by the sulfide-bearing solutions in the last phase and filled the fissures and the open spaces in the icarn and magnetite, Hie ore body hasa lens-like shape dipping to teh soui!?e.-*st* The grade of the ore is 54 % Fe and U % S, and the proved reserve is 6,4 million tons.