Granulometric Studies on Modern Barrier System of the Right Bank of Krishna Delta, East Coast of India

Abstract

Granulometric studies have been undertaken on 3 sand spits present on the right bank of the Krishna River confluence with the Bay of Bengal. The size parameters (mean size, standard deviation, skewness and kurtosis) and CM diagrams are discussed. The past and the present growth rates of the delta are evaluated to support the granulometric studies. Major spits 1 and 2 have reached stability while spit 3, which emerged at the mouth is still in active growth. The progradation of the Krishna Delta is due to the development of the bars and spits, leading to the consequent filling of the lagoonal areas. The present progradation of the deltaic facies ultimately may pave the way for the disappearance of the bay.