Arid
DOI10.1016/j.jafrearsci.2012.09.007
Thickness variation of the sedimentary cover in the south Western Desert of Egypt as deduced from Bouguer gravity and drill-hole data (Retracted article. See vol. 80, pg. 80, 2013)
Senosy, M. M.1; Youssef, M. M.1; Zaher, M. Abdel2
通讯作者Senosy, M. M.
来源期刊JOURNAL OF AFRICAN EARTH SCIENCES
ISSN1464-343X
EISSN1879-1956
出版年2013
卷号77页码:11-21
英文摘要

Bouguer gravity anomaly mapped at a scale of 1:500,000 and the lithological logs of about 120 deep wells were used to determine the thickness of the sedimentary sequence containing the main sandstone water formation in important area of Egypt. The area is located in the southern part of the Western Desert bounded by the latitudes 22 degrees 00’-26 degrees 30’ N, and longitudes 28 degrees 30’-33 degrees 00’ E. The predominant structures affecting the basement rocks and the sedimentary cover were also studied. The gravity stripping approach was applied to eliminate the gravity effects caused by sedimentary sequence and to separate density anomalies within the sedimentary fill from the influence of rocks at deeper levels in the crystalline crust.


The present study indicated that the surface of the basement rocks is highly rugged and mostly controlled by structures which have a direct effect on thickness variation of the sedimentary cover all over the area. Regionally the area is characterized by two major intracratonic basins (the Dahkla Basin and the Nile valley Basin) separated by a NE-SW trending swell of the Kharga uplift and bounded at the south by the Oweinat-Bir Safsaf-Aswan uplift. These major tectonic units are controlled by fault structures trending in N-S, E-W, NE-SW, NW-SE, which cut the basement rocks and extend upward in the sedimentary cover. The maximum thickness of sandstone formations is recorded at west Oweinat, west Kurkur, southwest of Aswan, Gramashin. Dakhla oasis and some localities west of Sohag and Qena towns. At these localities the thickness ranges between 600 and 900 m. As this formation is the main water aquifer in the study area, therefore these localities are characterized by the presence of big amount of groundwater. Accordingly, these areas must take the priority in the sustainable development programs of southern Egypt. (C) 2012 Elsevier Ltd. All rights reserved.


英文关键词Bouguer gravity Subsurface structures Groundwater occurrences
类型Article ; Retracted Publication
语种英语
国家Egypt
收录类别SCI-E
WOS记录号WOS:000312173800002
WOS关键词INVERSION ; DEPTH
WOS类目Geosciences, Multidisciplinary
WOS研究方向Geology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/177875
作者单位1.Assiut Univ, Fac Sci, Dept Geol, Assiut 71515, Egypt;
2.Natl Res Inst Astron & Geophys, Helwan, Egypt
推荐引用方式
GB/T 7714
Senosy, M. M.,Youssef, M. M.,Zaher, M. Abdel. Thickness variation of the sedimentary cover in the south Western Desert of Egypt as deduced from Bouguer gravity and drill-hole data (Retracted article. See vol. 80, pg. 80, 2013)[J],2013,77:11-21.
APA Senosy, M. M.,Youssef, M. M.,&Zaher, M. Abdel.(2013).Thickness variation of the sedimentary cover in the south Western Desert of Egypt as deduced from Bouguer gravity and drill-hole data (Retracted article. See vol. 80, pg. 80, 2013).JOURNAL OF AFRICAN EARTH SCIENCES,77,11-21.
MLA Senosy, M. M.,et al."Thickness variation of the sedimentary cover in the south Western Desert of Egypt as deduced from Bouguer gravity and drill-hole data (Retracted article. See vol. 80, pg. 80, 2013)".JOURNAL OF AFRICAN EARTH SCIENCES 77(2013):11-21.
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