The Stream Sediments and Heavy Minerals for Au-Cu Geochemical Exploration in Nahavand's Firozan

The studied area is located in the north of Nahavand’s Firozan, Sanandaj-Sirjan geological zone. The Cretaceous dacite, andesite, quartz-andesite and tuff are dominated rocks in the area.Granite and granodiorite intrusive rocks have been intruded to this complex. The geochemical analysis shows anomalies of Au, Ag, As, Sb, Fe, Pb and Zn. The heavy minerals are magnetite, hematite, limonite, martite, oligist, pyrite, oxidized pyrite, galena, sphalerite, native copper, azurite, barite, pyrolusite, ilmenite, rutile, anataz and leucoxene that they are principally affiliated with anomalous zones. Also, 18 sample from mineralized zone show that noticeable geochemical anomaly for Au, Ag, Cu, Pb, Zn and Fe. Finally, field study, mineralography, stream sediments and heavy minerals analysis show that anomalous zone in western part of the area.