Investigation of geochemical anomalies in the Nour Abad ophiolitic complex (Northwest of Lorestan)

The Nour Abad ophiolitic complex as south part of Kermanshah ophiolite is
located in the high Zagros zone. The high Zagros zone is divided into three sections including Bisotoun limestone, ophiolitic complex, and Bakhtaran radiolarite. The ophiolitic complex from lower part to upper part is composed of serpentinized peridotites, layered gabbro, isotropic gabbro, plagiogranite, sheeted dike complex, basaltic lava, andesite and sedimentary rocks, respectively. The petrographical studies have been showed that the primary minerals of the ophiolitic complex such as olivine, plagioclase and pyroxene are altered to serpentine, amphibole, chlorite, sericite and Feoxides secondary minerals. Also, mineralization in these rocks is contains chalcopyrite, bornite, malachite, azurite and titanomagnetite. Various alteration occurred in this rocks includes serpentinite, epidotic, silisic, sericitic, zeolitic, chloritic and carbonate. The results of chemical analysis for Nour Abad ophiolitic complex shows high concentration of Cr, Ni, Mn, Ti, Cu and Ag elements.