• Dhanya.A.V
• K.N.Prakash Narasimha
• Vybhav.K
• Pradeep P Mujumdar

Rock composition and weathering rates are the key factors to govern river water composition. Kabini is an important tributary of river Cauvery, of the total drainage area of 6693 sq.kms. Its source lies in the western Ghats in Wynad of Kerala at an elevation of 2134mts. The river enters Karnataka near Bavali from south western side of the state. It flows for a total distance of 220kms and joins the river Cauvery at Tirumakudal –Narasipura. The course of the river follows the high grade lithology in both the states. An attempt has been made in the present study to understand the trend of chemical weathering along the course of the river through its major ion composition of surface water chemistry. In this regard eight surface-water samples were collected along the course of the river Kabini at an interval of 30kms and analyzed for major anion and cations. The chemical composition of the River water reflects the influence of silicate weathering.

Chemical weathering, Surface water chemistry, Kabini, Litho-units

"Major ion chemistry an indicator of chemical weathering along the course of the river Kabini , South India", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 7, page no.626-631, July-2018, Available :http://www.jetir.org/papers/JETIR1807238.pdf

"Major ion chemistry an indicator of chemical weathering along the course of the river Kabini , South India", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 7, page no. pp626-631, July-2018, Available at : http://www.jetir.org/papers/JETIR1807238.pdf