Magnetotelluric imaging of deep reservoir water in the northern part of Kharga Oasis, Egypt.’’, (original) (raw)

2014, Proceedings of Conductivity Anomaly (Geo-fluid 3), Tokyo Institute of Technology, Japan..

Due to the big consuming of ground water in agricultural activities, the reservoir water of Kharga Oasis is noticeably decreased. The demand of drilling deeper wells is increased and most of them reached to the basement rocks. The well data have been observed since 40 years. Over-exploitation of reservoir systems has caused a decline in water table in many parts in the area under studied between 60-80 m. Hot springs are found in the southern part of Kharga City of water temperature 45° C. Magnetotelluric (MT) measurements are carried out in the northern part of Kharga oasis, in order to image the deep part of its reservoir water, using available data of hydro-geology and boreholes information. The results of MT analysis in 1D and 2D show that the sediments of Quaternary and Paleocene (less than 1 km.) have low resistivity value, while the high resistivity value belongs to the basement complex of Pre-Cambrian rocks at depths greater than 1 km. Keywords: Kharga Oasis Reservoir water (KOR), hydro-geology and magnetotellurics

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