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An application of the second derivative as a tool in tectonic analysis in the Qattara Depression area, Egypt

Published online by Cambridge University Press:  01 May 2009

A. El-Hussaini ,
M. Youssef  and
H. Ibrahim
A. El-Hussaini
Affiliation:
Geology Department, Faculty of Science, Assiut University, Assiut, Egypt
M. Youssef
Affiliation:
Geology Department, Faculty of Science, Assiut University, Assiut, Egypt
H. Ibrahim
Affiliation:
Geology Department, Faculty of Science, Assiut University, Assiut, Egypt
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Abstract

The second derivative of gravity anomalies of the Qattara area was analysed and statistically studied for determining the tectonic elements. Zones of zero second derivative were considered as the locations of possible faults. The analysis of a constructed tectonic map portrays the predominance of N45°W, N85°E and N45°E fault trends in addition to less pronounced N15°E and N–S faults. The NW–SE faults are very old and inherited from the basement structures. They acted as first order right-lateral wrench faults during the Alpine tectonism. Second and higher orders of faults, developed as a consequence of these movements, are represented by the N85°E and other less abundant trends. Vertical movements along the existing fault system, in addition to the horizontal displacement, is supported by the analysis of the pronounced anomalies of the second derivative map. The subsurface structural picture of the area is composed of uplifted and downfaulted adjoining blocks.

Type
Articles
Information
Geological Magazine , Volume 123 , Issue 3 , May 1986 , pp. 307 - 313
Copyright
Copyright © Cambridge University Press 1986

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References

Abdine, A. S. & Deibis, S. 1972. Lower Cretaceous Aptian sediments and their oil prospects in the northern Western Desert, Egypt. Eighth Arab Petroleum Congress, Algiers, Paper no. 74 (B-3).Google Scholar
Andrawis, S. F. 1972. New biostratigraphic contribution for the upper part of the Paleozoic rocks of Gibb Afia Well No. 2, Western Desert, Egypt. Eighth Arab Petroleum Congress, Algiers, Paper no. 76(B-3).Google Scholar
Bayoumi, A. I. & Bacili, M. 1976. Implications of gravity anomalies to tectonic parameters. Geological Society of Africa.Google Scholar
El-Gezeery, M. N., Mohsen, S. M. & Farid, M. 1972. Sedimentary basins of Egypt and their petroleum prospects. Eighth Arab Petroleum Congress, Algiers, Paper no. 83(B-3).Google Scholar
El-Hussaini, A. & Henain, E. F. 1975. On computation of second derivative from gravity data. Ninth Arab Petroleum Congress, Dubai, paper no. 51(B-2).Google Scholar
El-Shazly, E. M. 1966. Structural development of Egypt, UAR. Geological Society of Egypt: Fourth Annual Meeting, Programme and Abstracts, 31–8.Google Scholar
El-Shazly, E. M. 1970. Evolution of granitic rocks in relation to major tectonics. In West Commemoration Volume, pp. 569–82. Faridabad, India: Today and Tomorrow Printers & Publishers.Google Scholar
El-Shazly, E. M. 1972. On the development of segments in the Basement crust in northern Africa. 24th International Geological Congress, Canada, Abstracts, p. 27.Google Scholar
El-Shazly, E. M. 1977. The geology of the Egyptian region. In The Ocean Basins and Margins, vol. 4A (eds. Nairn, A. E. M., Kanes, W. H. and Stehi, F. G.), pp. 379–444. Plenum Publishers.CrossRefGoogle Scholar
El-Shazly, E. M., Abdel Hady, M. A., Ghawaby, M. A., Khawasik, S. M. & El-Shazly, M. M. 1976. Geological interpretation of Landsat satellite images for Qattara Depression Area, Egypt. Remote Sensing Research Project, Academy for Scientific Research and Technology, Cairo, Egypt.Google Scholar
El-Shazly, E. M., Abdel Hady, M. A. & Morsy, M. A. 1974. Geological interpretation of infrared thermal images in East Qatrani area. Proceedings of the Ninth International Symposium on Remote Sensing and Environment, Environmental Research Institute of Michigan, Ann Arbor, Michigan, pp. 1877–89.Google Scholar
Halsey, J. M. & Gardner, W. C. 1975. Tectonic Analysis of Egypt Using Earth Satellite Data. Lecture given to the Egyptian geologists in Cairo.Google Scholar
Moody, J. D. & Hill, M. J. 1956. Wrench-fault tectonics. Bulletin of the Geological Society of America 67 (9), 1207–46.CrossRefGoogle Scholar
Parker, R. L. 1974. Best bounds on density and depth from gravity data. Geophysics 39, 644–9.CrossRefGoogle Scholar
Riad, S., El-Hussaini, A. & Darwish, Y. 1978. Analysis of gravity anomalies in the Qattara Depression area, Western Desert, Egypt, and their tectonic significance. Bulletin of the Faculty of Science, Assiut University 7 (1), 293–307.Google Scholar
Rosenbach, O. 1953. A contribution to the computation of the second derivative gravity data. Geophysics 18, 894–912.CrossRefGoogle Scholar
Said, R. 1962. The Geology of Egypt, Amsterdam & New York: Elsevier, 377 pp.Google Scholar
Schürmann, H. M. S. 1956. Das Präkambrium der Arabischen Wüste Agyptens. Geologisches Rundschau 45, 179–93.CrossRefGoogle Scholar
Youssef, M. I. 1968. Structural pattern of Egypt and its interpretation. Bulletin of the American Association of Petroleum Geologists 52 (4), 601–14.Google Scholar
Youssef, M. M., Riad, S. & Mansour, H. H. 1977. Surface and subsurface structural study of the area around Assiut, Egypt. Bulletin of the Faculty of Science, Assiut University 6 (2), 293–306.Google Scholar