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Register a new userStudy of the Upper Ordovician - Current Time tectonic evolution of the Elward Area in the Syrian Euphrates Graben Using restoration techniques
استخدام طرائق إزالة التشوهات التكتونية في دراسة التطور التكتوني بدءاً بمرحلة الأردوفيسي الأعلى و انتهاءً بالزمن الحالي لمنطقة الورد في منخفض الفرات في سورية
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Tishreen University ورقة بحثية
Publication date
2015
fields
Geology
and research's language is
العربية
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Shamra Editor
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استُخدمت طريقة القص المائل (Inclined shear) في هذه الدراسة بوصفها طريقةً أوليّة من طرائق إزالة التشوهات التكتونية (Restoration)، و ذلك بهدف إزالة الإزاحة الناتجة عن تأثير الفوالق العادية التي تشكلت بفعل القوى التكتونية الشدّية التي ضربت منطقة الورد. إذ طُبقت هذه الطريقة باستخدام برنامج 2D move على المقطع السيزمي العمقي (Inline A 2157) ذي الاتجاه شمال شرق- جنوب غرب، و على امتداد منطقة الدراسة. في حين استُخدمت طريقة القص الشاقولي (Vertical shear) بوصفها طريقةً مكمّلة بهدف إزالة التشوهات التكتونية نهائياً، و تحديدًا للتشكيلات الواقعة تحت سطح عدم توافق قاعدة الكريتاسي المتأخر (BKU) المتضمنة تشكيلات الخابور و الضبيات و المولوسا F و الرطبة. أسهمت طريقتا القص المائل و القص الشاقولي؛ أو طريقة الإعادة إلى المرجع (Restore to datum)، في بناء مقاطع جيولوجية عدة مثّلت التغيرات التكتونية لمنطقة الدراسة بدءاً بالأردوفيسي الأعلى، و انتهاءً بالزمن الحالي.
The inclined shear restoration technique was used in this research as the primary method to remove the effects of fault displacements. These displacements were resulted from the impact of the NE-SW trending extensional forces. The inclined shear restoration technique was applied to the NE-SW trending seismic section (Inline A2157) along the Elward Area, using 2D move software. The vertical shear restoration technique was used as a complementary method to remove the effects of folding associated with faulting, especially to formations under the Base Upper Cretaceous Unconformity (BKU). The inclined shear and the vertical shear restoration techniques contrib uted to build many geological sections according to depth seismic section (Inline A 2157). These sections showed the Tectonic setting of the study area from Upper Ordovician till current time.
References used
ALSOUKI, M.; TAIFOUR, R. The tectono-depositional evolution of the Syrian Euphrates Graben Area using the 3D seismic data. Arabian Journal of Geosciences, 2014, Online
BEST, J.A.; BARAZANGI, M.; AL-SAAD, D.; SAWAF, T.; GEBRAN, A. Continental margin evolution of the northern Arabian Platform in Syria. Am Assoc Pet Geol Bull, VOL. 77, NO. 2, 1993, 173–193
BREW, G.; BARAZANGI, M.; AL-MALEH, A.K.; & SAWAF, T. Tectonic and geologic evolution of Syria. GeoArabia, VOL. 6, No. 4, 2001, 573-616
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