JOINT INVERSION OF RESISTIVITY (VES) AND TIME DOMAIN ELECTROMAGNETIC (TEM) DATA FOR GROUNDWATER EXPLORATION AT WADI HAGUL, NORTHWESTERN PART OF EASTERN DESERT, EGYPT | ||||
Journal of Egyptian Geophysical Society | ||||
Volume 12, Issue 1, 2014, Page 29-40 PDF (3.99 MB) | ||||
Document Type: Original Article | ||||
DOI: 10.21608/jegs.2014.385010 | ||||
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Authors | ||||
S.A.S. Araffa1; S.E.A. Mousa2; O.H.M. Salama3; H.S. Mesbah1; M.M. Soliman1; US. Massoud1; S.E.A. Rageb1 | ||||
1National Research Institute of Astronomy and Geophysics, Helwan, Cairo, Egypt | ||||
2Ain Shams University, Abbasia, Cairo, Egypt | ||||
3MB Petroleum Company – Sultanate of Oman | ||||
Abstract | ||||
The technique of joint inversion for resistivity and time domain electromagnetic data have been different applications such as groundwater, environments, mineral deposits and archeology. Joint inversion of resistivity/TEM data is an effective approach to characterize groundwater reservoirs. Thirty six stations were measured for DC resistivity (VES) of AB/2 ranging from 500 to 1000 m and 36 TEM stations were measured also beside VES stations of loop sides of 50 x50 m to apply the joint inversion technique. One station was measured beside borehole drilled in study area of depth 350 m for correlation and calibration between the results of joint inversion and data of borehole. The results of joint inversion indicate that the area contain two aquifers, the upper aquifer represents fresh water having moderate resistivity values (7-35 ohm.m) and thickness of 11-101 m at depth ranging from 15-70 m. The second aquifer represents the brackish water having low resistivity values (1-7 ohm.m) and thickness of 23-103 m at depth ranging from 25-130 m. | ||||
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