MINERALOGY, PETROGRAPHY AND GEOCHEMISTRY OF THE KHARVANAGH VOLCANIC ROCKS, (NW OF IRAN)

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PIROOJ H.; KAMALI A.A.; EBADIHAJIALILO B.; AMERI A.

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Journal: Iranian Journal of Crystallography and Mineralogy Year:2012 | Volume:20 | Issue:3 Page(s): 479-490

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Information Journal Paper

Title

MINERALOGY, PETROGRAPHY AND GEOCHEMISTRY OF THE KHARVANAGH VOLCANIC ROCKS, (NW OF IRAN)

Author(s)

PIROOJ H. | KAMALI A.A. | EBADIHAJIALILO B. | AMERI A. | Issue Writer Certificate

Keywords

KHARVANAGHQ2

BASALTQ2

BACK-ARC BASINQ2

GARNET-LHERZOLITEQ2

Abstract

The study area is located in the central part of the Siahrood geological map, KHARVANAGH of Ahar town, in the East Azerbaijan Province. The volcanic rocks of the KHARVANAGH area include trachybasalt, trachy-andesi-basalt and trachy-andesite. The main minerals in the rocks are plagioclase, pyroxene, olivine and hornblende and the main textures are microlitic-porphyry. At the contact between the volcanic rocks and Miocene sandstones, epidote and calcite are formed due to thermal effect. Based on the geochemical data of major and trace elements, these rocks belong to High K alkaline to shoshonitic magmatic series. The absence of distinct Eu anomaly and relatively enrichment in LILE (Ba, Rb, and K) and LREE in these rocks indicate a back arc tectonic setting. Also enrichment of incompatible elements can be related to mantle metasomatism or contamination by continental crust. The chemistry of back arc rocks is relatively complicated and the geochemical features depend on the degrees of partial melting, heterogeneity in the sources mantle, etc. Considering the geological features and the Miocene age of the rocks, it can be concluded that the parental magma belongs to extensional basins magmatism, which produced from partial melting of the garnet lherzolite mantle.

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APA: Copy

PIROOJ, H., KAMALI, A.A., EBADIHAJIALILO, B., & AMERI, A.. (2012). MINERALOGY, PETROGRAPHY AND GEOCHEMISTRY OF THE KHARVANAGH VOLCANIC ROCKS, (NW OF IRAN). IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY, 20(3), 479-490. SID. https://sid.ir/paper/4102/en

Vancouver: Copy

PIROOJ H., KAMALI A.A., EBADIHAJIALILO B., AMERI A.. MINERALOGY, PETROGRAPHY AND GEOCHEMISTRY OF THE KHARVANAGH VOLCANIC ROCKS, (NW OF IRAN). IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY[Internet]. 2012;20(3):479-490. Available from: https://sid.ir/paper/4102/en

IEEE: Copy

H. PIROOJ, A.A. KAMALI, B. EBADIHAJIALILO, and A. AMERI, “MINERALOGY, PETROGRAPHY AND GEOCHEMISTRY OF THE KHARVANAGH VOLCANIC ROCKS, (NW OF IRAN),” IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY, vol. 20, no. 3, pp. 479–490, 2012, [Online]. Available: https://sid.ir/paper/4102/en

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