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Rejuvenation of the eastern Mediterranean passive continental margin in northern and central Sinai: new data from the Themed Fault

Published online by Cambridge University Press:  01 May 2009

A. R. Moustafa  and
M. H. Khalil
A. R. Moustafa
Affiliation:
Department of Geology, Ain Shams University, Cairo, Egypt
M. H. Khalil
Affiliation:
Gulf of Suez Petroleum Company, Box 2400, Cairo, Egypt
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Abstract

The Themed Fault marks the southernmost border of the Early Mesozoic passive continental margin of north Sinai. This 200-km long fault transects the northern part of the Tih Plateau that supposedly occupies a tectonically stable area. Post-Middle Eocene–pre-Early Miocene rejuvenation of this fault proceeded by right-lateral wrenching and represents a newly recognized phase of deformation in the history of north and central Sinai. The minimum estimate for the strike-slip movement on this fault is about 300–750 m. To the north of the Themed Fault is a narrow fault belt (Sinai hinge belt) that marks the boundary between a tectonically unstable crustal block to the north (the north Sinai fold belt area) and a tectonically stable crustal block to the south, the main part of the Tih plateau area.

Four phases of dextral wrenching rejuvenated the faults of the Early Mesozoic passive continental margin in northern Egypt; one of them affected the Themed Fault. The oldest (Dl) deformation is early Late Senonian and is related to the closure of Neotethys and the Eastern Mediterranean basin. The D1 deformation proceeded by pure wrenching in the north Western Desert of Egypt. In contrast, it proceeded by transpression in north Sinai due to the irregular plate boundary and the relationship of this boundary to the slip vectors. D2 deformation (post-Middle Eocene–pre-Early Miocene) is clear in the Themed Fault area although reported herein for the first time; it is related to continued closure of the Eastern Mediterranean basin and proceeded by pure wrenching. D3 deformation (Late Oligocene–Early Miocene) proceeded by divergent wrenching in the north Eastern Desert and is kinematically related to the transfer of slip from the nearby faults of the Suez rift. D4 deformation (post-Early Miocene to Recent) affected the Sinai hinge belt by pure wrenching and is probably related to the left-lateral slip on the Dead Sea Transform and the related drag of the eastern edges of the fault blocks of this hinge belt. Recent seismic activity in the Sinai hinge belt perhaps indicates that the D4 deformation has continued to the present time, although morphological expression of recent tectonic movement is lacking. In contrast, the Themed Fault is seismically quiet at present.

Type
Articles
Information
Geological Magazine , Volume 131 , Issue 4 , July 1994 , pp. 435 - 448
Copyright
Copyright © Cambridge University Press 1994

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References

Abdel Aal, A. & Moustafa, A. R. 1988. Structural framework of the Abu Gharadig basin, Western Desert, Egypt. 9th Egyptian General Petroleum Corporation Exploration and Production Conference (Cairo), 37 pp.Google Scholar
Abdel Aal, A., Day, R. A. & Lelek, J. J. 1992. Structural evolution and styles of the northern Sinai, Egypt. Proceedings of the 11th Egyptian General Petroleum Corporation Exploration and Production Conference (Cairo) 1, 546–62.Google Scholar
Al-Saad, D., Sawaf, T., Gebran, A., Barazangi, M., Best, J. & Chaimov, T. 1992. Crustal structure of central Syria: the intracontinental Palmyride mountain belt. Tectonophysics 207, 345–58.CrossRefGoogle Scholar
Argyriadis, I., De Graciansky, P. C., Marcoux, J. & Ricou, L. E. 1980. The opening of the Mesozoic Tethys between Eurasia and Arabia–Africa. Mémoire du Bureau de Recherches Géologiques et Minières 155, 199–214,Google Scholar
Bartov, Y., Eyal, M., Shimron, A. E. & Bentor, Y. K. 1980 a. Sinai – Geological photomap, scale 1:500,000. Survey of Israel.Google Scholar
Bartov, Y., Lewy, Z., Steinitz, G. & Zak, I. 1980 b. Mesozoic and Tertiary stratigraphy, paleogeography and structural history of the Gebel Areif en Naqa area, eastern Sinai. Israel Journal of Earth Sciences 29, 114–39.Google Scholar
Bartov, Y., Steinitz, G., Eyal, M. & Eyal, Y. 1980 c. Sinistral movement along the Gulf of Aqaba – its age and relation to the opening of the Red Sea. Nature 285, 220–1.CrossRefGoogle Scholar
Ben-Avraham, Z. & Ginzburg, A. 1990. Displaced terranes and crustal evolution of the Levant and the Eastern Mediterranean. Tectonics 9, 613–22.CrossRefGoogle Scholar
Best, J. A., Barazangi, M., Al-Saad, D., Sawaf, T. & Gebranα, A. 1993. Continental margin evolution of the northern Arabian platform in Syria. American Association of Petroleum Geologists Bulletin 77, 173–93.Google Scholar
Bin-Duval, B., Letouzey, J. & Montadert, L. 1979. Variety of margins and deep basins in the Mediterranean. American Association of Petroleum Geologists Memoir 29, 293–317.Google Scholar
Chaimov, T. A., Barazangi, M., Al-Saad, D., Sawaf, T. & Gebran, A. 1992. Mesozoic and Cenozoic deformation inferred from seismic stratigraphy in south-western intracontinental Palmyride fold-thrust belt, Syria. Geological Society of America Bulletin 104, 704–15.2.3.CO;2>CrossRefGoogle Scholar
Cochran, J. R. 1983. A model for the development of the Red Sea. American Association of Petroleum Geologists Bulletin 67, 41–69.Google Scholar
Dercourt, J., Zonenshain, L. P., Ricou, L. E., Kazmin, V. G., Le Pichon, X., Knipper, A. L., Grandjacquet, C., Sbortshikov, I. M., Geyssant, J., Lepverier, C., Pechersky, D. V., Boulin, J., Sibuet, J. C., Savostin, L. P., Sorokhtin, D., Westphal, M., Bazhenov, M. L., Laurer, J. P. & Bijou-Duval, B. 1986. Geological evolution of the Tethys belt from the Atlantic to the Pamirs since the Lias. Tectonophysics 123, 241–315.CrossRefGoogle Scholar
El-Azoni, M. A. 1992. Two-dimensional gravity modeling of the basement down to Mohorovicic discontinuity, northern Western Desert, Egypt. Proceedings of the 11th Egyptian General Petroleum Corporation Exploration and Production Conference (Cairo) 2, 427–34.Google Scholar
Elzarka, M. H. & Radwan, I. A. 1986. Subsurface geology of the Tertiary rocks of the northeast district of the Western Desert of Egypt. Journal of African Earth Sciences 5, 285–319.Google Scholar
Eyal, Y. & Reches, Z. 1983. Tectonic analysis of the Dead Sea rift region since the Late Cretaceous based on mesostructures. Tectonics 2, 167–85.CrossRefGoogle Scholar
Fawzy, A. & Dahi, M. 1992. Regional geological evolution of the Western Desert, Egypt. Proceedings of the 1st International Conference on the Geology of the Arab World (Cairo) 1, in press.Google Scholar
Fournier, F. L. & Iskander, F. 1940. Geological map: El Themed sheet, northern Sinai, scale 1: 100,000. Standard Oil Company of Egypt S.A.Google Scholar
Freund, R. & Garfunkel, Z. 1976. Guidebook to Excursion along the Dead Sea Rift. Hebrew University, Jerusalem, 27 pp.Google Scholar
Garfunkel, Z. & Bartov, Y. 1977. The tectonics of the Suez rift. Geological Survey of Israel Bulletin 71, 44 pp.Google Scholar
Geologic Map Of Egypt 1981. Scale 1:2,000,000. Egyptian Geological Survey and Mining Authority, Egypt.Google Scholar
Hempton, M. P. 1985. Structure and deformation history of the Bitlis suture near Lake Hazar, southeastern Turkey. Geological Society of America Bulletin 96, 233–43.2.0.CO;2>CrossRefGoogle Scholar
Hendy, H., Gouda, S. & Ghanem, L. 1992. Structural styles revealed by 3D seismic data in the Abu Gharadig basin Badr El Din and Sitra lease areas, Western Desert, Egypt. Proceedings of the 11th Egyptian General Petroleum Corporation Exploration and Production Conference (Cairo) 2, 20–38.Google Scholar
Jones, T. H. 1947. Geological map, Ras El Naqb sheet, northern Sinai; scale 1:100,000. Standard Oil Company of Egypt S.A.Google Scholar
Krenkel, E. 1925. Geologie Afrikas. Berlin: Verlag von Gebruder, 461 pp.Google Scholar
May, P. R. 1991. The Eastern Mediterranean Mesozoic basin: evolution and oil habitat. American Association of Petroleum Geologists Bulletin 75, 1215–32.Google Scholar
Moustafa, A. R. 1988. Wrench tectonics in the north Western Desert of Egypt (Abu Roash area, southwest of Cairo). Middle East Research Center, Ain Shams University, Earth Science Series 2, 1–16.Google Scholar
Moustafa, A. R. 1993. Structural characteristics and tectonic evolution of the east margin blocks of the Suez rift. Tectonophysics 223, 381–99.CrossRefGoogle Scholar
Moustafa, A. R. & Abd-Allah, A. M. 1991. Structural setting of the central part of the Cairo-Suez District. Middle East Research Center, Ain Shams University, Earth Science Series 5, 133–45.Google Scholar
Moustafa, A. R. & Abd-Allah, A. M. 1992. Transfer zones with en échelon faulting at the northern end of the Suez rift. Tectonics 11, 499–506.CrossRefGoogle Scholar
Moustafa, A. R. & Khalil, M. H. 1988. Late Cretaceous-Early Tertiary dextral transpression in north Sinai: reactivation of the Tethyan continental margin (abs). American Association of Petroleum Geologists Mediterranean Basins Conference (Nice, France).Google Scholar
Moustafa, A. R. & Khalil, M. H. 1989. North Sinai structures and tectonic evolution. Middle East Research Center, Ain Shams University, Earth Science Series 3, 215–31.Google Scholar
Moustafa, A. R., Khawasik, S. M. & Khalil, M. H. 1991. Late Cretaceous–Tertiary rotational deformation in North Sinai (Gebel Yelleq area). Neues Jahrbuch für Geologie und Paläontologie 11, 643–53.CrossRefGoogle Scholar
Moustafa, A. R., Yehia, M. A. & Abdel Tawab, S. 1985. Structural setting of the area east of Cairo, Maadi, and Helwan. Middle East Research Center, Ain Shams University, Science Research Series 5, 40–64.Google Scholar
Moustafa, A. R. & Yousif, M. S. 1990. Two-stage wrench deformation at Gebel El Minsherah, north Sinai. Middle East Research Center, Ain Shams University, Earth Science Series 4, 112–22.Google Scholar
Naylor, M. A., Mandl, G. & Sijpesteijn, C. H. K. 1986. Fault geometries in basement-induced wrench faulting under different initial stress states. Journal of Structural Geology 8, 737–52.CrossRefGoogle Scholar
Nicolas, A. 1987. Principles of Rock Deformation. Dordrecht: D. Reidel Publishing Co., 208 pp.CrossRefGoogle Scholar
Orwig, E. R. 1982. Tectonic framework of northern Egypt and the Eastern Mediterranean region. 6th Egyptian General Petroleum Corporation Exploration Seminar (Cairo), 20 pp.Google Scholar
Robertson, A. H. F. & Dixon, J. E. 1984. Introduction: aspects of the geological evolution of the Eastern Mediterranean. In The Geological Evolution of the Eastern Mediterranean (eds Dixon, J. E. and Robertson, A. H. F.), pp. 1–74. Geological Society (London) Special Publication no. 17.Google Scholar
Robson, D. A. 1971. The structure of the Gulf of Suez (clysmic) rift with special reference to the eastern side. Journal of the Geological Society, London 127, 247–77.CrossRefGoogle Scholar
Sadek, H. 1928. The principal structural features of the Peninsula of Sinai. 14th International Geological Congress (Madrid, 1926) 3, 895–900.Google Scholar
Said, R. 1962. The Geology of Egypt. Amsterdam: Elsevier Publishing Company, 377 pp.Google Scholar
Shata, A. 1959. Structural development of the Sinai Peninsula (Egypt). Proceedings of the 20th International Geological Congress (Mexico, 1956), 225–49.Google Scholar
Smith, A. G. 1971. Alpine deformation and the oceanic areas of the Tethys, Mediterranean and Atlantic. Geological Society of America Bulletin 82, 2039–70.CrossRefGoogle Scholar
Steinitz, G., Bartov, Y. & Hunziker, J. C. 1978. K–Ar age determinations of some Miocene–Pliocene basalts in Israel: their significance to the tectonics of the rift valley. Geological Magazine 115, 329–40.CrossRefGoogle Scholar
Tealeb, A. 1985. Spectral analysis of the gravimetric bouguer anomaly of Egypt for crustal thickness studies. Helwan Institute for Applied Geophysics Bulletin 5B, 63–82.Google Scholar
Van Eck, T. & Hofstetter, A. 1990. Fault geometry and spatial clustering of microearthquakes along the Dead Sea-Jordan rift fault zone. Tectonophysics 180, 12–27.CrossRefGoogle Scholar
Vroman, A. J. 1967. On the fold pattern of Israel and the Levant. Geological Survey of Israel Bulletin 43, 23–32.Google Scholar
Wilcox, R. E., Harding, T. P. & Seeley, D. R. 1973. Basic wrench tectonics. American Association of Petroleum Geologists Bulletin 57, 74–96.Google Scholar
Youssef, M. I. 1968. Structural pattern of Egypt and its interpretation. American Association of Petroleum Geologists Bulletin 52, 601–14.Google Scholar