GRANULOMETRIC ANALYSIS OF CHANNEL SEDIMENTS OF SATI RIVER BASIN, DISTRICT GADCHIROLI, MAHARASHTRA, INDIA

Ten sediment samples from the Sati River basin in Gadchiroli District, Maharashtra, were analysed in detail for grain size to assess their textural and statistical characteristics, including mean, standard deviation, skewness, and kurtosis, as well as to understand their depositional patterns. The basin spans approximately 842.60 square kilometres, covering catchments from the northeast to the southwest. The sieve technique was used for grain size analysis, and a cumulative curve was generated by plotting grain size against cumulative weight percentage. The computed values for inclusive graphic skewness, median, mean, standard deviation, and kurtosis suggest that the sediments primarily consist of coarse-grained sand, are platykurtic, moderately sorted, and nearly symmetrically skewed. The interrelation of these parameters confirms the unimodal nature of the sediments, with coarse-grained sand being dominant. The C-M plot and log probability curves indicate that sediment transport occurs mainly through saltation and suspension. Overall, granulometric analysis confirms the fluvial origin of these sediments.