Abstract: Divriği (Sivas) A-B kafa mineralizations show stratigraphic and tectonic relationships to Murmano plııton,Akdağ limestones and serpentinized ultramafic rocks in Güneş ophiolite. The magmatic-hydrothermal system thatcontrols the mineralizations is related to emplacement, crystallization and cooling of the Late Cretaceous Murmanopluton. The plutonic rocks have been experienced a pervasive alkaline metasomatism resulting in scapolitizationfollowed by a potassic alteration with a secondary K-feldspar formation. The mineralization is hosted by thesemetasomatic rocks, and as endoskarns. The exoskarn are not observed  are not of importance and limited to a fewveinlets within the serpentinized ultramafic rocks. The alterations and mineralizations were formed in threesuccessive stages in the region. The first prograde stage, dominates in region known as A-kafa, This phase is resultedin the formation of metasomatic zones starting from granitoids (central parts) to serpentinites as scapolite, scapolitegarnet zones. The retrograde stage consists of phlogopite-magnetite+K-feldspar (iscapolite ±gamet) zones. Theproducts of this stage is observed in the B-kafa region and also in the A-kqfa region as superimposing and replacing the prograde assemblages. The late-alteration stage, which is the last stage, is represented by hematite,limonite, goethite and sulfide mineralizations formed by hybrid hydrothermal systems in brecciated, sericitized andcarbonated rocks. The B-kqfa mineralizations that are regarded as the continuum of hydrothermal system forming theA-kafa mineralizations have a conical shape thinning downward. Therefore, it resembles to breccia pipes anddiatremes in Fe-oxide-Cu-Au systems. The contacts of brecciated rocks with recrystallized limestones are mainlysharp, while it is sheared and faulted with serpentinized rocks. The silicification and carbonization that increasedownward is accompanied by sulfide mineralization. However, martitized zones grade downward in massivemagnetite bearing zones. The sericities at shallower levels and barite-bearing limestones in contact with thesegranitoids represent the late and low temperature products of the hydrothermal system.