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Saeidi, Hajialioghli, Moazzen. Petrography, whole rock chemistry and study of formation condition of amphibolites in east of Salmas, northwest of Iran. www.ijcm.ir 2021; 29 (4) :7-7
URL: http://ijcm.ir/article-1-1681-en.html
Abstract:   (577 Views)
The amphibolites of east Salmas, as one of the widest units of the metamorphic complex, are located in the northwest of Sanandaj-Sirjan zone, which according to field studies are mainly oriented and foliated amphibolites. Based on microscopic studies, amphibolites include amphibolites, biotite-amphibolites, epidote-amphibolite, biotite-epidote-amphibolite, tremolite-actinolite-amphibolite, and biotite-clinopyroxene-amphibolite. Amphibolite specimens of the region have maximum parallel pattern based on the variation diagrams of rare earth elements normalized to chondrite, EMORB and primary mantle and are similar to intra-plate basalts in terms of geochemical properties. According to the results of whole rock chemistry, the study amphibolites are mainly ortho-amphibolites with a basaltic protolith and calc-alkaline magmatic series, which are located in the intra-plate tectonic position.
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