Vol. 4,No. 2, February 2014

Author(s): Masoud Kiani, Amin Panahi,Zahra Shabani,Mohammad morad Moridi,Mohammad hasan Bijani

Abstract: The Noorabad ophiolitic complex in western Iran is part of the high Zagros situated between the the Zagros folded belt and Sanandaj-Sirjan zones. This ophiolite is an important part of Kermanshah ophiolite .High Zagros has three separate sub-units, which consist of the Biston limestone ,the ophiolite complex , and the Bakhtaran radiolarite. The rocks of this ophiolitic complex consist of bottom to top, serpentinized peridotites, layered gabbros,isotropic gabbros,minor plagiogranit, sheeted dike complex, basalt, andesite and sedimentary rocks. The petrographic studies show that the primary minerals (olivine, plagioclase ,pyroxene and metallic minerals ) of rocks of this ophiolitic complex altered to secondary minerals(serpentine,amphibol,chlorite,sericite and Fe-Oxide). Also, mineralization in rocks consists of chalcopyrite, burnit, malachite ,azurite and iron minerals. Chemical analysis of some lithogeochemical samples from the some area shows noticeable assays for elements such as Mn,Ti and Cu.The majority of anomalous areas are intimately associated with alteration zones in the region.The results of chemical analysis rocks of this ophiolite show that this rocks have geochemical anomalies for Cr, Ni , Mn,Ti,Cu and Ag.

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