The study of clay minerals of kordan basin in savojbolagh

The studied area is about 360 Km2. To study the clay minerals of Kordan's area the researcher chose samples from the surface of alluvial fan and the interpretation of XRD indicates the following

1-The clay minerals of area are mostly Cholorite and Illite. 2-The kind of area's Cholorite is sedimentary.Which is the result of erosion pyroclastics (TUFF). The origin of the mentioned cholorite is heredity. 3-In the downstream of Kordan basin due to the analysis of Cholorite, The amount of the Cholorite has been reduced and the amount of Illite has been increased. In such a way that in sample (B1) the amount of the cholorite was 60% and it reduced in sample (SM2) to 41/4% and the amount of Illite increased from 35% to 58/6%. 4- The amount of Montmorionite is little in Kordan. 5- In this basin the amount of Fe +2 and Mg +2 is most abundant and the amount of K+ ions is a little. And the climate is dry and semi-dry.