--> Abstract: A Geophysical Investigation in Eastern Abu Dhabi, United Arab Emirates, by Ahmed Al Kaabi, Abdul Aziz Al Mazrooei, Khalid Obaid, Saif Al Mazrooei, Khlfan Al Mansoori, and Mohammed Ali; #90077 (2008)

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A Geophysical Investigation in Eastern Abu Dhabi, United Arab Emirates

Ahmed Al Kaabi*, Abdul Aziz Al Mazrooei, Khalid Obaid, Saif Al Mazrooei, Khlfan Al Mansoori, and Mohammed Ali
The Petroleum Institute, UAE
*[email protected]

A geophysical investigation has been conducted to the southeast of the Al-Jaww Plain, eastern Abu Dhabi Emirate. The area underwent numerous deformations, which can be used to model the geological history of Upper Cretaceous and Tertiary structures. The aim of the study was to determine the contact between the Semail Ophiolite and Tertiary carbonate rocks, and a reverse fault that has been imaged by seismic data. Three days were spent acquiring the data. The first two were spent in surveying and gathering the gravity and magnetic data. The final day was spent in collecting seismic data. The gravity and magnetic surveys were acquired along a grid system that runs 70° NE. The interval distance between the grid lines was 200 m with gravity stations spaced at 100 m and magnetic stations at 50 m. Different corrections were applied to the gravity data including drift, elevation, latitude, free air and Bougaur. For the magnetic data, diurnal and IGRF corrections were applied. ProMax software was used to process the seismic reflection data. From the gravity and magnetic data, contour maps have been produced, which show the distribution of gravity and magnetic anomalies. The gravity contour map indicates the possible location of the reverse fault. The magnetic contour map clearly shows the contact between the Semail Ophiolite and Tertiary carbonates. Also, the seismic reflection data show the possible geometry of the fault. Moreover, the gravity model indicates the contact between the Semail Ophiolite and sedimentary rocks, as well as the approximate position of the reverse fault.

 

AAPG Search and Discovery Article #90077©2008 GEO 2008 Middle East Conference and Exhibition, Manama, Bahrain