The Mosha Fault and Seismicity of South Central Alborz Range, Iran
Publish place: 2nd Disaster Management Conference
Publish Year: 1386
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
GEODM02_049
تاریخ نمایه سازی: 13 اردیبهشت 1386
Abstract:
Field investigation of the western part of the Mosha Fault in several structural sections in the south central Alborz Range showed that the fault has a high angle of dip to the north. Study of the kinematics of the Mosha Fault in this area, based on S–C fabric and microstructures, demonstrates that it is a deepseated semi-ductile thrust. The Mosha Fault is associated with a large hangingwall anticline, cored by Precambrian rocks, and series of footwall synclines, formed of late Tertiary rocks. This geometry, together with several low angle short-cut
thrusts in the fault footwall, implies that the Mosha Fault is an inverted normal fault which has been reactivated since the late Tertiary. In the study area, the reverse fault mechanism was associated with the rapid uplift and igneous activity in the central Alborz Range during the late Tertiary.
Authors
Samira Ameri
M.sc Student of Institute of Geophysics of the University of Tehran
Somayeh Ahmadzadeh
M.sc Student of Institute of Geophysics of the University of Tehran
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