Subsurface Structural Features of the Basement Complex and Geothermal Resources Using Aeromagnetic Data in the Bahariya Oasis, Western Desert, Egypt

  • Haby S. MohamedEmail author
  • Mohamed Abdel Zaher


Egypt gives priority to Western Desert in land reclamation and sustainable development projects. The Bahariya oasis, a northernmost oasis of Egypt, is closer to the capital compared to other remote oases and represents the most interesting potential candidates for the sustainable development. Many researches provide insight into the hydrogeology and structural geology of the Bahariya oasis; however, very few attempts have been done to investigate its geothermal potentiality. The aim of present study is to reflect the geothermal resources of the Bahariya oasis encountered with the predominant structures utilizing aeromagnetic and borehole data. The main subsurface structures and the depth-to-basement map were retrieved from the 2D modelling of the aeromagnetic data. The results of the 2D models were verified by well stratigraphic data. Spectral analysis of the aeromagnetic data was applied to estimate the Curie point depth (CPD) and to produce geothermal gradient and heat flow maps for the Bahariya oasis. The results of the study indicated that the depth to the basement rocks in the area ranges from 0.6 to 4.0 km. The CPD is 15 km in the central parts and increases to 24 km eastward. The geothermal gradient varies from 20 to 35 °C/km with an average 30 °C/km; however, the heat flow changes from 60 to 100 m W/m2 with an average of 90 m W/m2. These results, in addition to basement structures, imply a high temperature gradient and heat flow correlating with shallow Curie depths. The results are in agreement with previous work in the same region.


Geothermal potentiality aeromagnetic Curie point depth temperature gradients heat flow 



This study was primarily supported by the Academy of Scientific Research and Technology in Egypt through a project entitled: “Assessment of Geothermal Resources in Farafra Oasis” (project no. 1351), Deanship of Scientific Research, King Khalid University (SA) (project No.RGP2/54/40). The authors are grateful to Getech Group plc for providing the aeromagnetic data.


  1. Abd El All, E., Khalil, A., Rabeh, T., & Osman, S. (2015). Geophysical contribution to evaluate the subsurface structural setting using magnetic and geothermal data in El-Bahariya Oasis, Western Desert, Egypt. NRIAG Journal of Astronomy and Geophysics,4, 236–248.CrossRefGoogle Scholar
  2. Abdel Ati, A.A. (2002). Hydrogeological studies on the Nubian Sandstone Aquifer in Bahariya and Farafra depressions, Western Desert, Egypt. Ph.D. Thesis, Fac. Sci., Ain Shams Univ., p. 164.Google Scholar
  3. Abdel Zaher, M., Saadi, N. M., & Watanabeb, K. (2014). Geological applications potential of DEM, ETM + , and gravity data in arid and semi-arid regions with special reference to south Western Desert, Egypt. Arabian Journal of Geosciences,7(5), 1705–1716.CrossRefGoogle Scholar
  4. Abdel Zaher, M., Saibi, H., El-Nouby, M., Ghamry, E., & Ehara, S. (2011). A preliminary regional geothermal assessment of the Gulf of Suez, Egypt. J African Earth Sciences,60, 117–132.CrossRefGoogle Scholar
  5. Abdel Zaher, M., Saibi, H., Mansour, K., Khalil, A., & Soliman, M. (2018). Geothermal exploration using airborne gravity and magnetic data at Siwa Oasis, Western Desert, Egypt. Renewable and Sustainable Energy Reviews,82, 3824–3832.CrossRefGoogle Scholar
  6. Abdel Zaher, M., Saibi, H., Nishijima, J., Fujimitsu, Y., Mesbah, H., & Ehara, S. (2012). Exploration and assessment of the geothermal resources in the Hammam Faraun hot spring, Sinai Peninsula, Egypt. Journal of Asian Earth Sciences,45, 256–267.CrossRefGoogle Scholar
  7. Abdelzaher, M., Nishijima, J., El-Qady, G., Aboud, E., Masoud, O., Soliman, M., et al. (2011). Gravity and magnetotelluric investigations to elicit the origin of Hammam Faraun hot spring, Sinai Peninsula, Egypt. Journal of Acta Geophysica,59(3), 633–656.CrossRefGoogle Scholar
  8. Atef, H., Abd El-Gawad, A., Abdel Zaher, M., & Farag, K. (2016). The contribution of gravity method in geothermal exploration of southern part of the Gulf of Suez-Sinai region, Egypt. NRIAG Journal of Astronomy and Geophysics,5, 173–185.CrossRefGoogle Scholar
  9. Aydin, I., & Oksum, E. (2010). Exponential approach to estimate the Curie-temperature depth. Journal of Geophysics and Engineering,7, 113–125.CrossRefGoogle Scholar
  10. Ball, J. & Beadnell, J. H. L. (1903). Bahariya Oasis: Its topography and geology.Google Scholar
  11. Bhattacharyya, B. K., & Leu, L. K. (1975). Analysis of magnetic anomalies over Yellowstone National Park: Mapping of Curie point isothermal surface for geothermal reconnaissance. Journal of Geophysical Research,80(32), 4461–4465.CrossRefGoogle Scholar
  12. Blakely, R. J. (1995). Potential theory in gravity and magnetic applications. Cambridge: Cambridge University Press.CrossRefGoogle Scholar
  13. El-Akkad, S. & Issawi, B. (1963). Geology and iron ore deposits of the Bahariya Oasis: Geological Survey and Mineral Research Department, Egypt, Paper 18, p. 301.Google Scholar
  14. Elbarbary, S., Abdel Zaher, M., Mesbah, H., El-Shahat, A., & Embaby, A. (2018). Curie point depth, heat flow and geothermal gradient maps of Egypt deduced from aeromagnetic data. Renewable and Sustainable Energy Reviews,91, 620–629.CrossRefGoogle Scholar
  15. El-Bassyouny, A. A. (1961). A preliminary report on the discovery of new iron ore deposit, El-Gedida area, Bahariya Oasis. Unpupl. Report registered under No.34/1961, Geol. Survey, Cairo, Egypt (in Arabic).Google Scholar
  16. El-Bassyouny, A. A. (1972). Geology of the area between Gara El Hamra of Ball-QurLyons and Ghard El Moharrik and its correlation with El Harra area, Bahariya Oasis, Egypt. Unpublished M.Sc. Thesis, Cairo University, p. 180.Google Scholar
  17. Embabi, N. S., & El-Kayali, M. A. (1979). A morphotectonic map of the Bahariya depression. Ann Geol Surv Egypt,14, 179–183.Google Scholar
  18. Getech. (1992). The African Magnetic Mapping Project–commercial report (unpublished).Google Scholar
  19. Green, C. M., Barritt, S. D., Fairhead, J. D. & Misener, D. J. (1992). The African magnetic mapping project. Extended abstract, EAEG 54th meeting and technical exhibition, Paris.Google Scholar
  20. Hamdan, A. M., Omran, A. A., & Sawires, R. F. (2012). Evaluation of hydrogeochemical parameters of the groundwater in El-Bahariya Oasis, Western Desert, Egypt. Assiut University Journal of Geology,41(1), 1–22.Google Scholar
  21. Hermina, M. H. (1957). Final geological report on geology of Bahariya Oasis. Unpubl. Report No. 26. Sahara Petroleum Company, Cairo, p. 47.Google Scholar
  22. Hsieh, H. H., Chen, C. H., Lin, P. Y., & Yen, H. Y. (2014). Curie point depth from spectral analysis of magnetic data in Taiwan. Journal of Asian Earth Sciences,90, 26–33. Scholar
  23. Korany, E. A., (1984). On the demonstration of the hydrogeological control by localgeologic structures, Bahariya Oasis, Egypt. E. G. S. Proceedings of 3rd annual meeting, pp. 341–355.Google Scholar
  24. Lashin, A. (2013). A preliminary study on the potential of the geothermal resources around the Gulf of Suez, Egypt. Arabian Journal of Geosciences,6, 2807–2828.CrossRefGoogle Scholar
  25. Maden, N. (2010). Curie-point depth from spectral analysis of magnetic data in Erciyes stratovolcano (Central TURKEY). Pure and Applied Geophysics,167, 349–358.CrossRefGoogle Scholar
  26. Mattsson, H., Thunehed, H., & Triumf, C.A. (2004). Oskarshamn site investigation. Compilation ofpetrophysical data from rock samples and in situ gamma-ray spectrometry measurements. Stage2—2004 (including 2002). SKB P-04-294, Svensk Kärnbränslehantering AB.Google Scholar
  27. Miller, H. G., & Singh, V. (1994). Potential field tilt a new concept for location of potential sources. Applied Geophysics,32, 213–217.CrossRefGoogle Scholar
  28. Mohamed, H. S., Abdel Zaher, M., Senosy, M. M., Saibi, H., El Nouby, M., & Fairhead, D. (2015). Correlation of aerogravity and BHT data to develop a geothermal gradient map of the Northern Western Desert of Egypt using an artificial neural network. Journal of Pure and Applied Geophysics,172(6), 1585–1597.CrossRefGoogle Scholar
  29. Morgan, P., Boulos, F. K., & Swanberg, C. A. (1983). Regional geothermal exploration in Egypt. Geophysical Prospecting,31, 361–376.CrossRefGoogle Scholar
  30. Moustafa, A. R., Saudi, A., Moubasher, A., Mohamed, I., Molokhia, H., & Schwartz, B. (2003). Structural setting and tectonic evolution of the Bahariya Depression, Western Desert, Egypt. GeoArabia Gulf Petrolink Bahrain,8(1), 91–124.Google Scholar
  31. Nwankwo, L. I., & Shehu, A. T. (2015). Evaluation of Curie-point depths, geothermal gradients and near-surface heat flown from high resolution aeromagnetic (HRAM) data of the entire Sokoto Basin, Nigeria. Journal of Volcanology and Geothermal Research,305, 45–55.CrossRefGoogle Scholar
  32. Oasis Montaj Programs. (2007). Geosoft mapping and processing system: Version 6.4.2 (HJ), Inc Suit 500, Richmound St. West Toronto, ON Canada N5SIV6.Google Scholar
  33. Okubo, Y., Graf, R. J., Hansen, R. O., Ogawa, K., & Tsu, H. (1985). Curie point depths of the island of Kyushu and surrounding areas, Japan. Geophysics,50, 481–494.CrossRefGoogle Scholar
  34. Parasnis, D. S. (1986). Principles of applied geophysics (4th ed.). London: Chapman and Hall.CrossRefGoogle Scholar
  35. Ravat, D., Salem, A., Abdelaziz, A. M. S., Elawadi, E., & Morgan, P. (2011). Probing magnetic bottom and crustal temperature variations along the Red Sea margin of Egypt. Tectonophysics,510, 337–344.CrossRefGoogle Scholar
  36. Said, R. (1962). The geology of Egypt. Amsterdam: Elsevier.Google Scholar
  37. Saleh, S., Salk, M., & Pamukc, O. (2013). Estimating Curie Point depth and heat flow map for Northern Red Sea Rift of Egypt and its surroundings, from aeromagnetic data. Pure and Applied Geophysics,170(5), 863–885.CrossRefGoogle Scholar
  38. Sharma, P. V. (1986). Geophysical methods in geology (2nd ed.). Amsterdam: Elsevier.Google Scholar
  39. Stampolidis, A., Kane, I., Tsokas, G. N., & Tsourlos, P. (2005). Curie point depths of Survey Department (p. 84). Egypt: Ministry of Public Works.Google Scholar
  40. Tanaka, A., Okubo, Y., & Matsubayashi, O. (1999). Curie point depth based on spectrum analysis of the magnetic anomaly data in East and Southeast Asia. Tectonophysics,306, 461–470.CrossRefGoogle Scholar
  41. Telford, W. M., Gelbart, L. P., Sheriff, R. E., & Keys, D. A. (1990). Applied geophysics (p. 770). Cambridge: Cambridge University Press.CrossRefGoogle Scholar

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© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Geology Department, Faculty of ScienceAssiut UniversityAsyûtEgypt
  2. 2.National Research Institute of Astronomy and Geophysics (NRIAG)HelwanEgypt

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