Abdel Aziz, W.H., Salwa,S.El-Sayied and Massoud,E.E.( 2010). chemical And mineral Logical features of some shale deposites in Egypt and its relation to agricultural and industrial Applications. J. of Appl. Sci., volum 25(12B):987-1001 2010. .
Abstract: The current investigation was conducted to evaluate the chemical and mineralogical characteristics of some shale deposits of Egypt with the aim of determining the most suitable use of these shale deposits. Ten shale deposit samples were selected from Aswan, El-Saff, Abou Zeneima and El-Bahariya Oasis. The obtained results revealed that, the texture class of the investigated shale samples ranged from clay to sandy clay loam. ECe values varied from shale sample to another ranged from 1.5 to 20.6 dSm-1. CaCO3 content ranged between 0.04 and 15.26 %, while gypsum content is very low and does not exceed than 2.81 %. Total chemical analysis of the studied shale samples showed that the percentages of the major oxides of SiO2, Al2O3, Fe2O3, MgO, CaO, Na2O, K2O and L.O.I were varied from 37.2 to 69.4, 14.2 – 40.3 %, 0.6 – 23.6 %, 0.25 – 4.2 %, 0.4 – 2.5 %, 0.05 – 1.25 %, 0.05 – 5.9 % and 1.7 – 16.03 %, respectively. X-ray diffraction pattern of the clay fraction separated from the studied shale samples revealed the dominance of kaolinite mineral followed by illite and interstratified minerals, while the shale deposits of El-Saff area are dominated by smectite mineral followed by interstratified minerals and kaolinite. Thus, the aforementioned results indicate that the shale deposits of Aswan, Abou Zeneima and El-Bahariya Oasis (El-Gedida) are more suitable for industrial purposes such as civil engineering works, while the shale deposits of El-Saff area are very essential for their proper application in soil reclamation.
Keywords: ()
