Evolution of the Sharavati Drainage, Mysore State, S. India

Abstract

Abstract The Sharavati river in Mysore, owes its importance as a potential source for the generation of hydroelectric power to the circumstance of river piracy. A swift flowing consequent stream, draining the western slopes of Western Ghats has pushed its way up the divide by rapid headward erosion and has captured the well graded mature drainage on the plateau surface at a higher base level. The origin of the Falls and the carving of the gorge below the Falls are the result of down-cutting and recession aided by the increased erosive power of the captured stream. The observed drainage anomalies are indicated to be the result of rejuvenation and uplift of the ancient peneplaned surface of the Peninsula in recent times. The Western Ghats represent the precipitous western edge of this uplifted plateau.