Abstract
Chemical and clay mineralogical characteristics of red and/or yellow colored soil materials were investigated in relation to their lithology and degree of weathering. A correlation analysis revealed close relationships between the weathering index (WI) and CEC8 (r= −0.518), CEC8/Clay (−0.657), Sid/Ald (the ratio of dithionite soluble Si to AI) (−0.606), percent variable charge (0.672), base saturation (−0.612), and Alo/Ald (the ratio of oxalate soluble Al to that of dithionite soluble one) (−0.432). On the other band, the lithology index (LI) is correlated with the clay content (0.653), CEC8 (0.555), oxalate and dithionite soluble Fe, Al, and Si contents. These results suggest that LI represents the characteristics related to the amount of clay, whereas WI represents those related to the nature of clay. The kind of clay mineral species predominating in a sample has a close relationship with WI, i.e., soils with a high WI are rich in AI-vermiculite and gibbsite and those with a low WI are dominated by verm...
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
