Yazar "Kamal, Mohamed" seçeneğine göre listele

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    Integrated geophysical techniques applied for petroleum basins structural characterization in the central part of the Western Desert, Egypt
    (De Gruyter Poland Sp Z O O, 2023) Kamal, Mohamed; Shen, Jinsong; Othman, Adel Ali Ali; Araffa, Sultan Awad Sultan; Tekin, H. O.; Ene, Antoaneta; Abdel-latief, Abdel-Sattar A.
    The study area is situated in the central part of the Western Desert of Egypt between latitude 28 degrees 00 ' to 30 degrees 00 ' N and longitude 25 degrees 00 ' to 30 degrees 00 ' E. That region is distinguished by a featureless plain that is divided by depressions in Siwa, Qattara, and Bahariya. The purpose of the current study is to study the predominant struc-tures in the area and how they relate to basin structure. Utilizing aerogravity data (Bouguer gravity, residual gravity, downward continuation, and Euler deconvolution) and aeromagnetic data (reduced to the northern Pole [RTP] anomalies and tilt derivative) is essential to accomplish this purpose. Through both qualitative analyses, these-data were submitted to various processing and interpretation approaches. The subsurface structure configuration trending in E-W, N-S, NW-SE, NE-SW, ENE-WSW, and NNE-SSW directions has been simulated by utilizing aero- gravity and aeromagnetic data. According to these maps, the study area is divided by around 44 faults. The study's findings indicated that the direction of the basement structure was almost NE-SW and N-S. The optimum Euler depth deconvolution at structure index, SI = 0 shows several features in the study area, including Sill, Dyke, Ribbon, and Step structures.
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    Natural radiological risk assessment around archaeological sites, El-Dakhla Oasis (EDO), egypt
    (Springer, 2024) Zakaly, Hesham M. H.; Elsaman, Reda; Kamal, Mohamed; Issa, Shams A. M.; Abbasi, Akbar; Shen, Jinsong; El-Taher, Atef; Yap, Chee Kong; Abdelbaky, Elsayed; Seleem, El-Montser M.
    The natural radionuclides in ancient El-Qasr village located in the El-Dakhla oasis (EDO), Egypt's Western Desert were measured using gamma-ray spectrometry equipped with a NaI (Tl) detector. The findings indicate that the samples' mean activity concentrations were 18.61 +/- 1.02, 16.67 +/- 0.9, and 137.67 +/- 6.9 Bq kg-1 for 226Ra, 232Th, and 40K, respectively. The values of Raeq, D, AED, Hex, Hin, I gamma, and ELCR for the samples ranged anywhere from 34.1 to 83.9 Bq kg-1, 15.7 to 37 nGy h-1, 19.26 to 45.384 Sv y-1, 0.09 to 0.23, 0.12 to 0.23, 0.25 to 0.59, and 6.74E-05 to 1.59E-04, respectively. These values are significantly lower than the international limit of 370 Bq kg-1 for Raeq, 59 nGy h-1 for D, 70 Sv y-1 for AED, 1 for Hex and Hin, 2 for I gamma, and 29E-03 for ELCR. According to the obtained data, none of the samples seemed to be a significant risk when it came to radiation exposure. Using these data, we will determine the baseline level of radionuclides that occur naturally in the area that is the subject of the inquiry.