The Moghra-Qattara area represents an important part of the Egyptian land reclamation projects. Understanding the 
geology of the area is a must in order to properly plan and manage the different activities of the project. This study is based 
on the most up-to-date measurements and analyses conducted by the Desert Research Center as a part of this project. This 
study focuses on the Moghra Formation (MF) which represents the main aquifer in this area. Rock and sediment samples 
were collected from both surface sections and drilled wells. MF was distinguished into three members namely, El Raml, Bait 
Owian and Monquar El Dowi from base to top. The microscopic examination revealed that one microfacies association is 
defined in El Raml member which is Quartz-arenite, whereas Bait Owian member comprises two microfacies associations 
which are Sparite, and microsparite. Contrarily, four microfacies associations are investigated in Monquar El Dowi member 
which are Calcareous Quartz arenite, Glauconitic calcareous quartz arenite, Ferruginous calcareous quartz arenite and Sandy 
biomicrite. Mineralogically, twenty bulk samples were selected and examined by the X-ray Diffraction (XRD). The XRD 
shows that El Raml member is characterized by the presence of quartz, plagioclase and kaolinite as the predominant minerals 
followed by orthoclase and gypsum minerals. By comparison, Bait Owian member composes mainly of kaolinite and quartz 
followed by gypsum, calcite, aragonite and geothite. While, Monquar El Dowi member is characterized by the existence of 
quartz, plagioclase and kaolinite as dominant minerals followed by orthoclase, dolomite, calcite, gypsum, halite and hematite.
The grain size analyses of sandy samples from these members show that the first was deposited in a fluvial environment 
whereas the second is shallow marine and the third is fluviomarine. These microfacies and mineral characteristics have direct 
impact on the hydraulic properties of Moghra aquifer.