Document Details

Document Type : Article In Journal 
Document Title :
Variations of the Crustal Structure of Arabia
التغيرات في تركيب القشرة الأرضية للجزيرة العربية
 
Subject : Earth Sciences 
Document Language : English 
Abstract : Data from the broadband seismic stations deployed in Saudi Arabia during 1996 made it possible to study the variation of surface wave dispersion of the Arabian plate as a function of azimuth. Careful selection of the paths from earthquakes associated with the boundaries of the Arabian plate was made, and the group velocities of the fundamental mode of both Love and Rayleigh waves along these paths were studied. Results show that the Arabian plate is characterized mainly by two different sets of similar group velocity curves that are related to the two major geological units, the Arabian shield and the Arabian platform. The group velocities along paths that traverse the eastern, northeastern, and northwestern regions of Arabia are found to be representative of the Arabian platform geologic province, and are slower than those along the Gulf of Aqaba, the southeastern and the southwestern paths, which in turn represent the Arabian shield geologic province. The group velocity data were inverted to obtain shear wave velocity structure models of both the shield and the platform regions. Damped least-squares inversions method that utilizes a differential rather than stochastic damping was used to obtain smooth shear wave velocity models. The resulting models are in good agreement with previous results obtained from tomographic inversion. 
ISSN : 1012-8832 
Journal Name : Earth Sciences Journal 
Volume : 15 
Issue Number : 1 
Publishing Year : 1425 AH
2004 AD 
Number Of Pages : 26 
Article Type : Article 
Added Date : Sunday, October 11, 2009 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
طلال علي مختارT. A. MOKHTARResearcher  

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