Systematic variations in the intensity of deformation in the Hinterland of the Zagros Orogenic Belt, Iran
محل انتشار: یازدهمین همایش ملی تخصصی زمین شناسی دانشگاه پیام نور و بیست و یکمین همایش انجمن زمین شناسی ایران
سال انتشار: 1397
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 488
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شناسه ملی سند علمی:
PNUGEO11_117
تاریخ نمایه سازی: 6 خرداد 1398
چکیده مقاله:
The Zagros orogen is an important collisional belt in the central part of the Alpine-Himalayan orogenic chain between the southern margin of the Iranian continent and the northern margin of the Arabian plate. One of the main discrepancies about this collisional belt is the location and number of suture zones between the Iranian and the Afro-Arabian continents. In this study, different structures comprising thrust, strike-slip and normal faults, macroscopic and mesoscopic folds, first- to fourth-order duplex structures, foliations and shear zones and the structures within them, have been considered to gather evidence about the variation in the intensity of deformation in the Zagros Hinterland Fold-and-Thrust Belt (ZHFTB). This study shows a systematic increase in deformation intensity toward the SW of the ZHFTB which is incompatible with the hypothesis of the existence of one main suture zone in the NE of the ZHFTB (i.e. the NE of the Sanandaj-Sirjan Zone).
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نویسندگان
Mohammad Ali Ghanbarian
Department of Earth Sciences, College of Sciences, Shiraz University, Shiraz, Iran
Marziyeh Khalili
Department of Earth Sciences, College of Sciences, Shiraz University, Shiraz, Iran
Morteza Sadeghi Mazidi
Department of Earth Sciences, College of Sciences, Shiraz University, Shiraz, Iran