Mineral Prospectivity Mapping by Fuzzy Logic Data Integration, Kajan Area in Central Iran Pezhman Rasekh 1 (p.rasekh@ut.ac.ir), Farshid Kiani 1 , Hooshang H. Asadi 1 , Seyed Hassan Tabatabaei 1 1 Isfahan University of Technology, Department of Mining Engineering, Isfahan, Iran Abstract: Kajan area is located in east of Isfahan, within the Urmia-Dokhtar volcanic belt. The volcanic rocks of the area are mostly associated with the Tertiary volcanic activities. The current study is carried out to identify new promising targets for regional exploration. Multiple data sources (e.g., stream sediment geochemical data, magnetic surveys, faults, geological and satellite data) are processed and then integrated by using Fuzzy Logic modeling to produce a final favorability map for regional copper exploration in the Kajan area. Keywords: (Fuzzy Logic Integration, Mineral Prospectivity, Urmia-Dokhtar, Kajan, GIS)