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Information Journal Paper

Title

PETROGRAPHY, GEOCHEMISTRY AND ORIGIN OF GARNET-BEARING RHYOLITES OF KAHAK AREA, SE QOM, IRAN

Pages

  17-26

Keywords

Abstract

 The post Eocene rhyolitic rocks of the KAHAK area are located in SE of the Qom quadrangle map in scale of 1:250,000 and in the KAHAK sheet in scale of 1:100,000. This area is situated at the marginal part of SW Central Iran, in the Urmia- Dokhtar magmatic belt. The rhyolitic rocks outcrop as endogenous domes and due to the presence of these rhyolitic masses along the Meyem strike-slip fault, it can be resulted that this fault has probably played an effective role in emplacement of magma ascending. The rhyolitic rocks are calc-alkaline and on the base of chemical composition of them and the chemistry of the present GARNET and mica, the rhyolitic magma is S-type and peraluminus, which, belongs to the collision geotectonic environment and suggesting the role of continental crust in generation of these rocks. Since GARNET is phenocrystal and seen individually in rhyolitic rocks and it could not be crystallized in most of the basic magmas, therefore the rhyolitic rocks could not derived from the fractional crystallization of basic magma.

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    • Cite

    APA: Copy

    ASKARI, N., EMAMI, M.H., & KHEIRKHAH, M.. (2015). PETROGRAPHY, GEOCHEMISTRY AND ORIGIN OF GARNET-BEARING RHYOLITES OF KAHAK AREA, SE QOM, IRAN. GEOSCIENCES, 24(94 (PETROLOGY & MINERALOGY)), 17-26. SID. https://sid.ir/paper/31368/en

    Vancouver: Copy

    ASKARI N., EMAMI M.H., KHEIRKHAH M.. PETROGRAPHY, GEOCHEMISTRY AND ORIGIN OF GARNET-BEARING RHYOLITES OF KAHAK AREA, SE QOM, IRAN. GEOSCIENCES[Internet]. 2015;24(94 (PETROLOGY & MINERALOGY)):17-26. Available from: https://sid.ir/paper/31368/en

    IEEE: Copy

    N. ASKARI, M.H. EMAMI, and M. KHEIRKHAH, “PETROGRAPHY, GEOCHEMISTRY AND ORIGIN OF GARNET-BEARING RHYOLITES OF KAHAK AREA, SE QOM, IRAN,” GEOSCIENCES, vol. 24, no. 94 (PETROLOGY & MINERALOGY), pp. 17–26, 2015, [Online]. Available: https://sid.ir/paper/31368/en

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