GEOCHEMISTRY AND DATING OF GABBROS ASSOCIATED WITH SAWLAVA OPHIOLITES-NW IRAN

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RAHIMZADEH BAHMAN; HASSAN ZADEH JAMSHID; MASOUDI FARIBORZ

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Paper Information

Journal: JOURNAL OF SCIENCE (KHARAZMI UNIVERSITY) Year:2014 | Volume:13 | Issue:4 Page(s): 0-0

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Title

GEOCHEMISTRY AND DATING OF GABBROS ASSOCIATED WITH SAWLAVA OPHIOLITES-NW IRAN

Author(s)

RAHIMZADEH BAHMAN | HASSAN ZADEH JAMSHID | MASOUDI FARIBORZ | Issue Writer Certificate

Keywords

GABBRO

SAWLAVA OPHIOLITE

PB DATING

SUPRA

SUBDUCTION ZONE

ZAGROS

Abstract

GABBROic stocks and dykes associated with Ophiolitic Basalts and peridotites are outcropped in the Sawlava town area. SAWLAVA OPHIOLITE is part of Kurdistan Ophiolitic complex that located in sheared zone between high ZAGROS and northern Sanandaj-sirjan Zone. This study focused geochemistry and dating of granular and pegmatoid GABBROs that due to closing to main recent fault (MRF) some part of them found milonitic fabric. GABBROs have 47.84 to 51.65 percent SiO2 and almost formed from tholeiitic magma. Labradorite plagioclase and diopside and augite clinopyroxens with Mg# of 83.90 to 88.90 respectivly are main minerals of GABBROs. Based on geochemical and geotectonic diagrams, GABBROs generated from slightly deplete magma which formed in back arc SUPRA-subduction zone. U-Pb dating of zircons presents an average age of 38.3±1.3 Ma for GABBROs. Late Eocene age from Sawlava GABBROs and similar GABBROs bodies related to ophiolites along ZAGROS suture, could indicate that neo-tethyan ocean closed after Eocene in the Kurdistan region.

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APA: Copy

RAHIMZADEH, BAHMAN, HASSAN ZADEH, JAMSHID, & MASOUDI, FARIBORZ. (2014). GEOCHEMISTRY AND DATING OF GABBROS ASSOCIATED WITH SAWLAVA OPHIOLITES-NW IRAN. JOURNAL OF SCIENCE (KHARAZMI UNIVERSITY), 13(4), 0-0. SID. https://sid.ir/paper/652548/en

Vancouver: Copy

RAHIMZADEH BAHMAN, HASSAN ZADEH JAMSHID, MASOUDI FARIBORZ. GEOCHEMISTRY AND DATING OF GABBROS ASSOCIATED WITH SAWLAVA OPHIOLITES-NW IRAN. JOURNAL OF SCIENCE (KHARAZMI UNIVERSITY)[Internet]. 2014;13(4):0-0. Available from: https://sid.ir/paper/652548/en

IEEE: Copy

BAHMAN RAHIMZADEH, JAMSHID HASSAN ZADEH, and FARIBORZ MASOUDI, “GEOCHEMISTRY AND DATING OF GABBROS ASSOCIATED WITH SAWLAVA OPHIOLITES-NW IRAN,” JOURNAL OF SCIENCE (KHARAZMI UNIVERSITY), vol. 13, no. 4, pp. 0–0, 2014, [Online]. Available: https://sid.ir/paper/652548/en

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