Petrology, geochemistry and dating of the Late Neoproterozoic metabasites of the Majerad metamorphic complex (SE Shahrood): One step to understanding of the geodynamic evolutions of Iranian Gondawanan terranes

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Veiskarami Marziyeh; Sadeghian Mahmood; jay mingo; GHASEMI HABIB ALLAH

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Journal: Iranian Journal of Crystallography and Mineralogy Year:2019 | Volume:27 | Issue:1 Page(s): 191-206

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Title

Petrology, geochemistry and dating of the Late Neoproterozoic metabasites of the Majerad metamorphic complex (SE Shahrood): One step to understanding of the geodynamic evolutions of Iranian Gondawanan terranes

Author(s)

Veiskarami Marziyeh | Sadeghian Mahmood | jay mingo | GHASEMI HABIB ALLAH | Issue Writer Certificate

Keywords

metabasiteQ2

Late NeoproterozoicQ1

extensional basinsQ2

Central IranQ2

MajaradQ1

ShahroodQ1

Abstract

The Majerad metamorphic complex is located in the northern margin of the Central Iran structural zone and southeast of Shahrood, includes a wide variety of metacarbonate, metabasite (greenschist, amphibolite and garnet amphibolite), metapelite, metapsammite and metarhyolite. The protolith of metabasites has been submarine basaltic lava flows which erupted in the Late Neoproterozoic intracontinental extensional basins. Magma forming of the protoliths of metabasites had alkaline nature, enriched in LILEs and LREEs, depleted in HFSEs and HREEs and originated from OIB to EMORB source regions. With respect to the results of U-Pb age dating on extracted zircons from granitoids which cut this complex (553 ± 3. 8 million years), Majerad complex has Late Neoproterozoic age. According to the carried out studies, it can be state that the mentioned basins often didn’ t reach the stage of the oceanic lithosphere formation, and then due to the dominance of the compressional regime, these basins rapidly closed and the contributed rocks in these processes, obducted in the form of accretion prisms on the continental plates and probably progressed up to the continental-continental collision.

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APA: Copy

Veiskarami, Marziyeh, Sadeghian, Mahmood, jay, mingo, & GHASEMI, HABIB ALLAH. (2019). Petrology, geochemistry and dating of the Late Neoproterozoic metabasites of the Majerad metamorphic complex (SE Shahrood): One step to understanding of the geodynamic evolutions of Iranian Gondawanan terranes. IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY, 27(1 ), 191-206. SID. https://sid.ir/paper/4168/en

Vancouver: Copy

Veiskarami Marziyeh, Sadeghian Mahmood, jay mingo, GHASEMI HABIB ALLAH. Petrology, geochemistry and dating of the Late Neoproterozoic metabasites of the Majerad metamorphic complex (SE Shahrood): One step to understanding of the geodynamic evolutions of Iranian Gondawanan terranes. IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY[Internet]. 2019;27(1 ):191-206. Available from: https://sid.ir/paper/4168/en

IEEE: Copy

Marziyeh Veiskarami, Mahmood Sadeghian, mingo jay, and HABIB ALLAH GHASEMI, “Petrology, geochemistry and dating of the Late Neoproterozoic metabasites of the Majerad metamorphic complex (SE Shahrood): One step to understanding of the geodynamic evolutions of Iranian Gondawanan terranes,” IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY, vol. 27, no. 1 , pp. 191–206, 2019, [Online]. Available: https://sid.ir/paper/4168/en

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