بررسي هاي كاني شناسي و ژئوشيميايي رودنژيت هاي افيوليت نايين

Mineralogical and Geochemical Studies on Rodingites of Nain Ophiolite

content rodingite forming fluid. In the advanced stage, xonotlite in the expense of plagioclase, and Mg-chlorite, tremolite and secondary diopside, at the expense of pyroxene, have been formed simultaneously with an increase of Si content of rodingite forming fluid. During rodingitization, the Ca and OH content, have increased, whereas the amounts of K, A1 and Na are reduced. Mn, Fe and Mg values are slightly reduced but Si remains constant.