The Golijeh base metal-silver deposit in northeast Zanjan is located in the Tarom subzone of western Alborz – Azerbaijan structural zone. Lithologic units in the area are volcanic-pyroclastic rocks of Eocene age with a composition of crystalline tuff, lithic tuff, volcanic breccia and andesitic lavas of the Kordkand member of Karaj Formation. The subvolcanic body of gabbro-diorite porphyry with a post-Eocene age has intruded these units. Mineralization has occurred in the form of vein-veinlets in the andesitic unit and, to a lesser extent, in the pyroclastic units. The main ore minerals include chalcopyrite, pyrite, galena, and iron-poor sphalerite together with lesser amounts of Ag-bearing tetrahedrite-tennantite. The alteration at Golijeh can be distinguished as two groups of mineralization-related alteration (silica-sulfide, phyllic, silica-carbonate and carbonate-sulfide) and non-mineralization-related general alteration (propylitic and argillic). The major ore textures and structures are, respectively, vein-veinlet, brecciated, open space filling and replacement. The intrusion of the subvolcanic gabbro-diorite porphyry body and the occurrence of faults are the factors controlling mineralization in the area. Considering the main properties of mineralization at Golijeh including mineralogy, metal content, vein-veinlet shape and the occurred alteration, the Golijeh mineralization can be classified as an intermediate-sulfidation epithermal deposit.