THE STUDY OF GEOCHEMICAL CHARACTERISTICS OF NATANZ PLUTONIC COMPLEX, NORTH OF ISFAHAN

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HONARMAND MARYAM; MOAYYED MOHSEN; JAHANGIRI AHMAD; AHMADIAN JAMSHID; BAHADORAN NOUSHIN

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Journal: PETROLOGY Year:2010 | Volume:1 | Issue:3 Page(s): 65-88

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Title

THE STUDY OF GEOCHEMICAL CHARACTERISTICS OF NATANZ PLUTONIC COMPLEX, NORTH OF ISFAHAN

Author(s)

Keywords

ORUMIEH – DOKHTARQ2

FRACTIONAL CRYSTALLIZATIONQ2

ACTIVE CONTINENTAL MARGINQ2

CALC-ALKALINEQ2

NATANZQ2

I-TYPEQ2

Abstract

The NATANZ plutonic complex is located 120 km north of Isfahan and in the Orumieh -Dokhtar magmatic belt. These Oligocene - Miocene plutons are intruded into the volcanics of Eocene. Based on petrographic studies, the NATANZ complex is composed of six types of rocks, including gabbro, diorite, quartz-diorite, quartz-monzonite, granodiorite and granite. Field, mineralogy and geochemical studies indicate that the parental magma of this complex is I-TYPE in nature, CALC-ALKALINE and meta-aluminous.Magma produced gabbro resulted from melting of metasomatized upper mantle which have undergone differentiation prior to emplacement. The parental magma of granitoid rocks is diorite that produced from mixing of mantle-derived mafic magma and crustal melting magma. The geochemical characteristics of rare earth elements are comparable to other subduction-related magmatic rock suites. The flat REE pattern in these magmas may require their derivation by partial melting from a garnet-poor source. Petrological evidence show that FRACTIONAL CRYSTALLIZATION from dioritic magma to monzogranitic magma was the main role in the genesis of these rocks. Tectono-magmatic setting of this complex may be subduction related magmatism or post-collisional magmatism due to extensional phases after collision of Arabic and Central Iran micro continent.

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References

MINERALOGY, GEOTHERMOBAROMETRY AND MAGMATIC SERIES OF NATANZ PLUTONIC COMPLEX

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APA: Copy

HONARMAND, MARYAM, MOAYYED, MOHSEN, JAHANGIRI, AHMAD, AHMADIAN, JAMSHID, & BAHADORAN, NOUSHIN. (2010). THE STUDY OF GEOCHEMICAL CHARACTERISTICS OF NATANZ PLUTONIC COMPLEX, NORTH OF ISFAHAN. PETROLOGY, 1(3), 65-88. SID. https://sid.ir/paper/196912/en

Vancouver: Copy

HONARMAND MARYAM, MOAYYED MOHSEN, JAHANGIRI AHMAD, AHMADIAN JAMSHID, BAHADORAN NOUSHIN. THE STUDY OF GEOCHEMICAL CHARACTERISTICS OF NATANZ PLUTONIC COMPLEX, NORTH OF ISFAHAN. PETROLOGY[Internet]. 2010;1(3):65-88. Available from: https://sid.ir/paper/196912/en

IEEE: Copy

MARYAM HONARMAND, MOHSEN MOAYYED, AHMAD JAHANGIRI, JAMSHID AHMADIAN, and NOUSHIN BAHADORAN, “THE STUDY OF GEOCHEMICAL CHARACTERISTICS OF NATANZ PLUTONIC COMPLEX, NORTH OF ISFAHAN,” PETROLOGY, vol. 1, no. 3, pp. 65–88, 2010, [Online]. Available: https://sid.ir/paper/196912/en

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