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

Abstract

<span style="font-size:9.0pt;font-family:" times="" new="" roman";="" mso-fareast-font-family:"times="" roman";mso-bidi-font-family:mangal;="" color:black;mso-ansi-language:en-in;mso-fareast-language:en-us;mso-bidi-language:="" hi"="">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.<span style="font-size:9.0pt; font-family:" times="" new="" roman";mso-fareast-font-family:"times="" roman";="" mso-bidi-font-family:mangal;mso-ansi-language:en-in;mso-fareast-language:en-in;="" mso-bidi-language:hi"=""> Moderately sorted sediments are dominating more along this coast.</span></span>