GEOCHEMISTRY AND TECTONOMAGMATIC SETTING OF THE KHARAJU GABBROIC INTRUSIONS (SOUTH AZARSHAHR, EAST AZERBAIJAN PROVINCE)

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FAZLNIA ABDOLNASER

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Journal: PETROLOGY Year:2017 | Volume:7 | Issue:28 Page(s): 127-144

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Title

GEOCHEMISTRY AND TECTONOMAGMATIC SETTING OF THE KHARAJU GABBROIC INTRUSIONS (SOUTH AZARSHAHR, EAST AZERBAIJAN PROVINCE)

Author(s)

FAZLNIA ABDOLNASER | Issue Writer Certificate

Keywords

GEOCHEMISTRYQ1

SPINEL LHERZOLITEQ2

GABBROQ2

OBLIQUE SUBDUCTIONQ2

KHARAJUQ1

URUMIEH-DOKHTARQ1

Abstract

Kharaju mafic intrusions (south Azarshahr; East Azarbaijan) are GABBRO in composition. The rocks with Eocene age intruded the northwest part of Urumieh -Dokhtar magmatic belt with a trend of NW-SE. These rocks contain mostly of minerals such as plagioclase, quartz, pyroxene, titanite, apatite and magnetite. The rocks are moderate to high calc-alkaline. The GABBROs were produced as a result of the partial melting of mantle wedge with SPINEL LHERZOLITE and after emplacement into the crustal magma chamber underwent fractional crystallization. Injection of the KHARAJU intrusions is in relation to the last stages of Neotethys subduction activity under Central Iran. Negative anomaly in the high ionic strength elements (HFSE) like, Nb, Ta, P, Hf and Zr and mild positive anomalies of Eu and Sr with moderate increases in values of K, Sr, Rb, Ba, Pb and U show OBLIQUE SUBDUCTION beneath Central Iran might be willing to make the appropriate space on the edge of central Iran and as a result, partial melting in the mantle wedge occurred due to reduce the pressure as decompression.

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APA: Copy

FAZLNIA, ABDOLNASER. (2017). GEOCHEMISTRY AND TECTONOMAGMATIC SETTING OF THE KHARAJU GABBROIC INTRUSIONS (SOUTH AZARSHAHR, EAST AZERBAIJAN PROVINCE). PETROLOGY, 7(28 ), 127-144. SID. https://sid.ir/paper/197057/en

Vancouver: Copy

FAZLNIA ABDOLNASER. GEOCHEMISTRY AND TECTONOMAGMATIC SETTING OF THE KHARAJU GABBROIC INTRUSIONS (SOUTH AZARSHAHR, EAST AZERBAIJAN PROVINCE). PETROLOGY[Internet]. 2017;7(28 ):127-144. Available from: https://sid.ir/paper/197057/en

IEEE: Copy

ABDOLNASER FAZLNIA, “GEOCHEMISTRY AND TECTONOMAGMATIC SETTING OF THE KHARAJU GABBROIC INTRUSIONS (SOUTH AZARSHAHR, EAST AZERBAIJAN PROVINCE),” PETROLOGY, vol. 7, no. 28 , pp. 127–144, 2017, [Online]. Available: https://sid.ir/paper/197057/en

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