Investigation of mineralogical and microstructural changes of Chah Zard granites (East of Jandagh) during mylonitization: using anisotropy of magnetic susceptibility method (AMS)

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fazilat asie; Sadeghian Mahmood

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Journal: Iranian Journal of Crystallography and Mineralogy Year:2020 | Volume:28 | Issue:1 Page(s): 199-216

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Title

Investigation of mineralogical and microstructural changes of Chah Zard granites (East of Jandagh) during mylonitization: using anisotropy of magnetic susceptibility method (AMS)

Author(s)

fazilat asie | Sadeghian Mahmood | Issue Writer Certificate

Keywords

GraniteQ2

Anisotropy of magnetic susceptibility (AMS)Q1

mylonitizationQ1

Chah ZardQ1

JandaghQ2

Abstract

Chah Zard granitoid pluton with 535. 4± 3. 2 Ma age (U-Pb zircon method, carried on the Zircon) intruded into Jandagh – Arousan metamorphic complex, and strongly mylonitized during later events. For the first time, Chah Zard granitoid pluton investigated by anisotropy of magnetic susceptibility (AMS) method. Mean magnetic susceptibility (Km) of biotite Granites (the main constitute of Chah Zard granitoid pluton) is 112 µ SI. Biotite is the most important magnetic carrier in biotite Granites. During of mylonitization, considerable volume of biotite alterated or evolved to muscovite and then Km values of their bearing rocks strongly decreased. Magnetic lineation and foliation have low plunge and dip, respectively, and also field evidences confirmed this finding. Magnetic lineations, mostly oriented toward northwest. Since the intensity of mylonitization is very high, microstructures which resulted in relation to tectonically stresses, had overcome to magmatic microstructures and partially to completely oblitrated them.

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APA: Copy

fazilat, asie, & Sadeghian, Mahmood. (2020). Investigation of mineralogical and microstructural changes of Chah Zard granites (East of Jandagh) during mylonitization: using anisotropy of magnetic susceptibility method (AMS). IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY, 28(1 ), 199-216. SID. https://sid.ir/paper/372947/en

Vancouver: Copy

fazilat asie, Sadeghian Mahmood. Investigation of mineralogical and microstructural changes of Chah Zard granites (East of Jandagh) during mylonitization: using anisotropy of magnetic susceptibility method (AMS). IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY[Internet]. 2020;28(1 ):199-216. Available from: https://sid.ir/paper/372947/en

IEEE: Copy

asie fazilat, and Mahmood Sadeghian, “Investigation of mineralogical and microstructural changes of Chah Zard granites (East of Jandagh) during mylonitization: using anisotropy of magnetic susceptibility method (AMS),” IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY, vol. 28, no. 1 , pp. 199–216, 2020, [Online]. Available: https://sid.ir/paper/372947/en

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