The assessment of sediments Bouyoucos, 1951 gave a typical clay formation Tamhane et al.,1978; Betejtin, 1970 , with a composition of 18.3% sand, 17.7% lime and 64% clay. Scanning electron microscope studies and X-ray diffraction analysis of sedimentary samples gave the following results: 15% of methalloysite and halloysite with a grain size )2 mm; 4% of cristobalite with a grain size between 2 and 135 mm; 58% of feldspars with a grain size between 5 and 75 mm; 7% of amphiboles with a grain size between 2 and 175 mm; 2% of mica with a grain size between 10 and 20 mm; 1% of other forms like dickite and kaolinite; and 5% of amorphous material with a grain size between 1 and 190 mm. Additionally, feldspars altered to clay minerals were observed.