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أ.د. سعد بن مقرن بن عبدالعزيز المقرن

Professor

عضو هيئة التدريس

كلية العلوم
كلية العلوم مبنى 4 الدور الارضي معمل الجاذبية المطلقة
المنشورات
مقال فى مجلة
2018

Gravity interpretation to image the geologic structures of the coastal zone in al Qunfudhah area, southwest Saudi Arabia

, Aseem Sulaiman, Eslam Elawadi and Saad Mogren . 2018

Structure of the Earth; Gravity anomalies and Earth structure; Numerical modelling.

This study provides interpretation and modelling of gravity survey data to map the subsurface basement relief and controlling structures of a coastal area in the southwestern part of Saudi Arabia as an aid to groundwater potential assessment. The gravity survey data were filtered and analysed using different edge detection and depth estimation techniques and concluded by 2-D modelling conducted along representative profiles to obtain the topography and depth variations of the basement surface in the area. The basement rocks are exposed in the eastern part of the area but dip westward beneath a sedimentary cover to depths of up to 2200 m in the west, while showing repeated topographic expressions related to a tilted fault-block structure that is dominant in the Red Sea rift zone. Two fault systems were recognized in the area. The firstisanormalfaultsystemtrendingintheNNW–SSEdirectionthatisrelatedtotheRedSea rift, and the second is a cross-cutting oblique fault system trending in the NE–SW direction. The interaction between these two fault systems resulted in the formation of a set of closed basins elongated in the NNW–SSE direction and terminated by the NE–SW fault system. The geomorphology and sedimentary sequences of these basins qualify them as potential regions of groundwater accumulation. 

نوع عمل المنشور
بحث في مجلة علمية
رقم الانشاء
214
مجلة/صحيفة
Geophysical Journal International
الصفحات
1623–1632
مزيد من المنشورات
publications

The 2009 earthquake-swarm in the Al-Ays volcanic zone in Harrat-Lunayyir in
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distribution at two depth bands (…

بواسطة Basab Mukhopadhyay , Saad Mogren , Manoj Mukhopadhyay & Sujit Dasgupta
2013