Integrated Studies to Elucidate the Subsurface Structures and Groundwater at Moghra Oasis, Northwestern Desert, Egypt
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About 150 thousand Acres were restricted around Moghra Lake, north Western Desert of Egypt, and were irrigated mainly from groundwater. Geophysical and geological studies were integrated to assess the groundwater quality of the Miocene Moghra aquifer in the studied area. Stratigraphically, the Moghra Lake is cut into the clastic-dominated sediments of the Lower Miocene Moghra Formation. Subsurface petrophysical logs and surface facies analysis of sedimentary facies successions were treated separately and then integrated to investigate the sedimentary environments and stratigraphical sequence in the Moghra Formation. A land magnetic survey was conducted with 2 km station spacing to reveal the governing structures and the expected depth to basement. The reduced to pole map was subjected to various special filters to detect magnetic contacts in the area that may affect the flow of the water aquifer. Moreover, the results of four VES stations of AB/2 ranging from 1 to 500 m were implemented to delineate the upper surface of the aquifer. The chemical analyses of 20 water samples were used to investigate the groundwater suitability for irrigation purposes on the basis of standard guidelines and showed moderate suitability values.
KeywordsMoghra Lake Land magnetic survey Groundwater quality
This work is extracted from a project financially supported by the Science and Technology Development Fund (STDF), Egypt, Project ID:15239.
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