Abstract
East Nile Delta area was subjected through its geologic history to complex series of tectonic activities. These activities were affected on the distribution of groundwater aquifer of this area. Oligocene, Miocene, and Pleistocene aquifers were detected in the east Nile Delta region. Among them, Miocene aquifer is characterized by slightly saline water. Delineating the contact boundary and distribution of Miocene aquifer will assist in managing drilling and development programs of the area. For achieving this purposes, 21 vertical electrical resistivity sounding were measured, processed, and interpreted. Also 23 water samples and lithologic information were collected and chemically analyzed from the drilled wells in the study area. The results revealed that the Miocene aquifer seemed to be structurally controlled by some faults. These faults played an important role in the distribution of this aquifer relative to other aquifers and changed its depositional style from sand to limestone. Hydrochemical analysis showed that Miocene groundwater samples are not suitable for drinking and agricultural purposes but can be used only in industrial projects.
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