PETORGENESIS OF THE GRANITOID BODY IN THE SOUTH OF SHAZAND (SOUTH WESTERN ARAK)

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TAHMASBI ZAHRA; KHALILI MAHMOUD; AHMADI KHALAJI AHMAD; MAKKI ZADEH MOHAMMAD ALI

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Journal: PETROLOGY Year:2010 | Volume:1 | Issue:1 Page(s): 87-102

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Information Journal Paper

Title

PETORGENESIS OF THE GRANITOID BODY IN THE SOUTH OF SHAZAND (SOUTH WESTERN ARAK)

Author(s)

TAHMASBI ZAHRA | KHALILI MAHMOUD | AHMADI KHALAJI AHMAD | MAKKI ZADEH MOHAMMAD ALI | Issue Writer Certificate

Keywords

PETROLOGYQ2

ASTANEHQ3

SANANDAJ-SIRJAN ZONEQ3

GEOCHEMISTRY OF GRANITOIDQ3

I-TYPE GRANITEQ3

CRUSTAL SOURCEQ3

Abstract

The ASTANEH granitoid massif represents a small portion of SANANDAJ-SIRJAN ZONE and consists of tonalite, granodiorite, monzogranite and rhyodacite, being the granodiorites the most dominant rocks. Petrological, mineralogical, field and geochemical investigations suggest that the ASTANEH granitoid is similar to those of the high-K calc-alkaline series, metaluminous to weakly peraluminous, and displays features typical of I-TYPE GRANITEs. Low Al2O3/ (FeO+MgO+TiO2) and (Na2O+K2O)/ (FeO+MgO+TiO2) ratios, and the trace and rare-earth elements patterns suggest that these rocks formed along a destructive plate margin and were derived from a lower CRUSTAL SOURCE. The granitoid magma involves partial melting of lower crustal protoliths (Amphibolites) and fractional crystallization of the melts in higher crustal levels generated the whole spectrum of rock types represent in the ASTANEH massif. Mantle-derived basaltic magmas emplaced into the lower crust are the most likely heat sources for partial melting.

Cites

TYPOLOGY AND TECTONIC SETTING OF THE QORVEH GRANITOID (KURDISTAN PROVINCE, WESTERN IRAN)

References

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APA: Copy

TAHMASBI, ZAHRA, KHALILI, MAHMOUD, AHMADI KHALAJI, AHMAD, & MAKKI ZADEH, MOHAMMAD ALI. (2010). PETORGENESIS OF THE GRANITOID BODY IN THE SOUTH OF SHAZAND (SOUTH WESTERN ARAK). PETROLOGY, 1(1), 87-102. SID. https://sid.ir/paper/196936/en

Vancouver: Copy

TAHMASBI ZAHRA, KHALILI MAHMOUD, AHMADI KHALAJI AHMAD, MAKKI ZADEH MOHAMMAD ALI. PETORGENESIS OF THE GRANITOID BODY IN THE SOUTH OF SHAZAND (SOUTH WESTERN ARAK). PETROLOGY[Internet]. 2010;1(1):87-102. Available from: https://sid.ir/paper/196936/en

IEEE: Copy

ZAHRA TAHMASBI, MAHMOUD KHALILI, AHMAD AHMADI KHALAJI, and MOHAMMAD ALI MAKKI ZADEH, “PETORGENESIS OF THE GRANITOID BODY IN THE SOUTH OF SHAZAND (SOUTH WESTERN ARAK),” PETROLOGY, vol. 1, no. 1, pp. 87–102, 2010, [Online]. Available: https://sid.ir/paper/196936/en

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