Geochemistry and tectonic setting of granite-gneisses from Abadchi, north of Shahrekord

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Riyahi Samani Fariba; SHABANIAN BOROUJENI NAHID; DAVOUDIAN DEHKORDI ALIREZA

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Journal: Iranian Journal of Crystallography and Mineralogy Year:2018 | Volume:26 | Issue:1 Page(s): 195-208

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Information Journal Paper

Title

Geochemistry and tectonic setting of granite-gneisses from Abadchi, north of Shahrekord

Author(s)

Riyahi Samani Fariba | SHABANIAN BOROUJENI NAHID | DAVOUDIAN DEHKORDI ALIREZA | Issue Writer Certificate

Keywords

Granite-gneissQ1

A-Type graniteQ2

geochemistryQ1

AbadchiQ1

Sanandaj-Sirjan ZoneQ1

Abstract

The Granite-gneiss body of Abadchi area (vicinity of Zayandeh-Rud dam) is a part of Sanandaj-Sirjan tectonic zone. The mineralogical composition of the Granite-gneisses contains quartz, K-feldspar, plagioclase, biotite and muscovite and minor minerals of opaque, zircon, amphibole and allanite. The Granite-gneiss rocks have been influenced by deformation dynamics and weakly Na-metazomatism. Geochemically, these rocks are calcic to calc-alkali, ferroan to magnesian, peraluminous to slightly metaluminous and are A to I-type granitoid. On the bases of chondrite-normalized REE diagram, they show a relatively enrichment in LREES rather than HREES with negative Eu anomalies. On primitive-mantle normalized spider diagrams, the rocks display relatively enrichment in LILE and LREE rather than HFSE which represent the magmatic rocks depending on arc and collision setting. This Granite-gneiss is formed in post-collisional tectonic setting.

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APA: Copy

Riyahi Samani, Fariba, SHABANIAN BOROUJENI, NAHID, & DAVOUDIAN DEHKORDI, ALIREZA. (2018). Geochemistry and tectonic setting of granite-gneisses from Abadchi, north of Shahrekord. IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY, 26(1 ), 195-208. SID. https://sid.ir/paper/408819/en

Vancouver: Copy

Riyahi Samani Fariba, SHABANIAN BOROUJENI NAHID, DAVOUDIAN DEHKORDI ALIREZA. Geochemistry and tectonic setting of granite-gneisses from Abadchi, north of Shahrekord. IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY[Internet]. 2018;26(1 ):195-208. Available from: https://sid.ir/paper/408819/en

IEEE: Copy

Fariba Riyahi Samani, NAHID SHABANIAN BOROUJENI, and ALIREZA DAVOUDIAN DEHKORDI, “Geochemistry and tectonic setting of granite-gneisses from Abadchi, north of Shahrekord,” IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY, vol. 26, no. 1 , pp. 195–208, 2018, [Online]. Available: https://sid.ir/paper/408819/en

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