SEISMOTECTONICS OF RECENT EARTHQUAKES IN WESTERN FARS AREA;SOUTHERN ZAGFOS, IRAN
سال انتشار: 1374
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 198
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شناسه ملی سند علمی:
SEE02_009
تاریخ نمایه سازی: 11 مهر 1400
چکیده مقاله:
The western Fars area in the middle of the folded Zagros, is the most recent seismic active zone in this belt. The fundamental strictures such as the Ghatar-Kazerun flexure and the Karehbäs-Firuzabad flexure have intersected the NW-SE trend of the beit. The recent earthquakes have been induced from the reaclivation of the mentioned structures. A shear zone is created hetvean these two ilexures, (named in this paper as the "Kazerun zore"), which is deformed through a right-hand tranpression mechanism. It is found that the principal stress axis of the recenž motions differs from N۴-۹E in the Zagros suture (more compressional), to N۲۱-۴۶E in the Firuzabad area (right-lateral strike-slip), Ivo intersection zones are introduced along Khurmoj-Firuzabad lineament system.
نویسندگان
MEHDI HEYDARI
Goolgis and Research Assistant, Earthquake Reconnaissance Dept., IIFES, P.O.Box: ۱۹۳۹۵/۳۹۱۳, Tehran, I.R.Iran
MEHDI ZARE
Engineering Grologist & Research Associate, Earthquake Reconna sisa ice lept., TIEES, Tehran, I.R.Iran