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۱Contribution to the Integrated Interpretation of Gravity, Aeromagnetic and Seismic Data of the Northern and Central Parts of Sinai, Egypt
اطلاعات انتشار: World Applied Sciences Journal، سي و يكم،شماره۹، ۲۰۱۴، سال
تعداد صفحات: ۱۲
Bouguer gravity and aeromagnetic maps and Landsat structural lineaments were used to delineate the structural pattern and tectonics of the northern and central parts of Sinai Peninsula. Processing of the available potential field data includes, regional–residual separation, second vertical derivative followed by trend analysis technique. Depths to the basement surface along 28 magnetic anomalies were estimated using spectral analysis technique. In addition, the gravity data were integrated with deep seismic refraction data, well logging data and geological information to build–up six crustal models for the study area. Accordingly, three maps for the basement surface; Conrad and Moho–discontinuities were constructedto determine the general crustal structures.The results of trend analysis show that, the study area is affected by six tectonic trends namely; ENE–WSW (Syrian Arc), NW–SE (Suez), NNE–SSW (Aqaba), E–W (Tethyan), WNW–ENE (Najd) and N–S (East– African). The results of the crustal modeling indicated that: 1–The average depth to basement surface below North Sinai attains about 5km, increases to 6km at the extremely northeast part and decreases to 0.5km toward the southern Sinai massif. 2–The depth to the Conrad discontinuity ranges between 17km at the northwest, 16kmat the eastern part to about 25km at the southeast. 3–The depth to the Mohovaries from 27km at the Mediterranean Sea coast and reaches 35km below the Aqaba Mountains.
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