ORIGIN AND TECTONIC SETTING OF GRANITIC ROCKS AND DOLERITE DIKES IN THE NASRAND PLUTON, SOUTHEAST OF ARDESTAN

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KANANIAN ALI; HAMZEI ZAHRA; SARJOUGHIAN FATEMEH; AHMADIAN JAMSHID

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Journal: PETROLOGY Year:2014 | Volume:5 | Issue:17 Page(s): 103-118

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Title

ORIGIN AND TECTONIC SETTING OF GRANITIC ROCKS AND DOLERITE DIKES IN THE NASRAND PLUTON, SOUTHEAST OF ARDESTAN

Author(s)

KANANIAN ALI | HAMZEI ZAHRA | SARJOUGHIAN FATEMEH | AHMADIAN JAMSHID | Issue Writer Certificate

Keywords

DOLERITE DIKESQ2

I TYPE GRANITEQ2

ACTIVE CONTINENTAL MARGINQ2

ARDESTANQ2

URUMIEH-DOKHTAR MAGMATIC ZONEQ2

Abstract

The Nasrand pluton of Oligo-Miocene age, which is located approximately 40 km south-east of ARDESTAN, intruded into the Eocene volcanic rocks of the Urumieh-Dokhtar magmatic belt. This pluton consists mainly of granite and granodiorite. The Nasrand plutonic rocks are metaluminous, weakly peraluminous, with mineralogical and geochemical characteristics of I-type, calc-alkaline to K bearing calc-alkaline granite. The granitic rocks as well as their host volcanic rocks have been crosscut by a series of NE-SW trending diabasic dikes. The plutonic rocks are characterized by enrichment of LREE and LILE, depletion of HREE and HFSE, the negative anomalies of Ti, Nb interpreted to reflect the emplacement of the granitic rocks as well as the diabasic dikes in an ACTIVE CONTINENTAL MARGIN. The positive anomalies of Rb, K, Th, U and the negative anomalies of Nb,Ti, Eu, Ba, Sr associated with high Ba/Nb (46-139) and Ba/La (17-77) ratios suggest that fusion of continental crust has played an important role in the genesis of the Nasrand granitic rocks and diabasic dikes.

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APA: Copy

KANANIAN, ALI, HAMZEI, ZAHRA, SARJOUGHIAN, FATEMEH, & AHMADIAN, JAMSHID. (2014). ORIGIN AND TECTONIC SETTING OF GRANITIC ROCKS AND DOLERITE DIKES IN THE NASRAND PLUTON, SOUTHEAST OF ARDESTAN. PETROLOGY, 5(17), 103-118. SID. https://sid.ir/paper/196958/en

Vancouver: Copy

KANANIAN ALI, HAMZEI ZAHRA, SARJOUGHIAN FATEMEH, AHMADIAN JAMSHID. ORIGIN AND TECTONIC SETTING OF GRANITIC ROCKS AND DOLERITE DIKES IN THE NASRAND PLUTON, SOUTHEAST OF ARDESTAN. PETROLOGY[Internet]. 2014;5(17):103-118. Available from: https://sid.ir/paper/196958/en

IEEE: Copy

ALI KANANIAN, ZAHRA HAMZEI, FATEMEH SARJOUGHIAN, and JAMSHID AHMADIAN, “ORIGIN AND TECTONIC SETTING OF GRANITIC ROCKS AND DOLERITE DIKES IN THE NASRAND PLUTON, SOUTHEAST OF ARDESTAN,” PETROLOGY, vol. 5, no. 17, pp. 103–118, 2014, [Online]. Available: https://sid.ir/paper/196958/en

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