Sediment characteristics at intertidal regions across Yarada beach, East coast of India

Abstract

Sediment samples were collected once a month at five different inter-tidal zones across Yarada beach during May-2009 to May-2010 These sediments are characterized by bimodal and unimodal behaviour and most of them are sorted as moderately as well as moderately well sorted Beach sediments are identified as follows: 71% are positively skewed and 29% are negatively skewed with 35% are very leptokurtic and 23% are platykurtic character Mean values suggest that samples across the beach vary from medium to fine with 58% medium sands and 32% finer Average median size (D₅₀) of samples varies between 0.253 mm and 0.353 mm and effective grain size (D₁₀) varies between 0.154 mm and 0.225 mm Moderately sorted sediments are dominating more along this coast.