GEOCHEMICAL STUDIES OF SAHAND VOLCANIC ROCKS (NORTHWEST OF IRAN)

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PIRMOHAMMADI ALISHAH FARHAD; JAHANGIRI AHMAD

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Journal: GEOCHEMISTRY Year:2013 | Volume:1 | Issue:4 Page(s): 301-308

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Information Journal Paper

Title

GEOCHEMICAL STUDIES OF SAHAND VOLCANIC ROCKS (NORTHWEST OF IRAN)

Author(s)

PIRMOHAMMADI ALISHAH FARHAD | JAHANGIRI AHMAD | Issue Writer Certificate

Keywords

SAHANDQ2

URUMIEH-DOKHTARQ2

DACITEQ2

SUBDUCTIONQ2

POST-COLLISIONALQ2

Abstract

In south Tabriz, which is considered as a part of western Alborz-Azarbaijan magmatic belt, the volcanic and pyroclastic rocks of SAHAND volcano cover the vast areas. The volcanic rocks include andesite, DACITE, rhyodacite and rhyolites and pyroclastic rocks largely occur as widespread ignimbritic outcrops. Based on the high LILE/HFSE and LREE/HREE ratios and their similar composition to SUBDUCTION volcanic rock suites; it is supposed that they have been formed in a SUBDUCTION zone. The SUBDUCTION process has effected on the concentration of Zr, Ta, Hf, Sm, Tb, Nd, Eu and Y elements, while it has strong influence on concentration of Th, U and La elements. Concentration of elements such as K, Pb, P, Zr, Sr, Ba, Rb shows that these rocks belong to the calc-alkaline series. Comparison of these rocks shows a considerable similarity with the calc-alkaline rocks from Turkey and it can be concluded that these rocks belong to POST-COLLISIONAL arcs. In this tectonic setting, magma ascent is controlled by strike-slip faulting and associated pull-apart extensional tectonics. This POST-COLLISIONAL magmatism may have been occurred due to the Arabian-Iranian collision events.

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APA: Copy

PIRMOHAMMADI ALISHAH, FARHAD, & JAHANGIRI, AHMAD. (2013). GEOCHEMICAL STUDIES OF SAHAND VOLCANIC ROCKS (NORTHWEST OF IRAN). GEOCHEMISTRY, 1(4), 301-308. SID. https://sid.ir/paper/230920/en

Vancouver: Copy

PIRMOHAMMADI ALISHAH FARHAD, JAHANGIRI AHMAD. GEOCHEMICAL STUDIES OF SAHAND VOLCANIC ROCKS (NORTHWEST OF IRAN). GEOCHEMISTRY[Internet]. 2013;1(4):301-308. Available from: https://sid.ir/paper/230920/en

IEEE: Copy

FARHAD PIRMOHAMMADI ALISHAH, and AHMAD JAHANGIRI, “GEOCHEMICAL STUDIES OF SAHAND VOLCANIC ROCKS (NORTHWEST OF IRAN),” GEOCHEMISTRY, vol. 1, no. 4, pp. 301–308, 2013, [Online]. Available: https://sid.ir/paper/230920/en

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