Comparative study of the moment and graphic size parameters of the sediments of the western continental shelf of India

Abstract

A comparative study of the moment and graphic size parameters was undertaken on about two hundred surficial sediment samples varying from sand to clay sizes from the western continental shelf of India. The studies reveal that the mean size and standard deviation may be calculated either by the moment method or by graphic methods (Inman; Folk and Ward) without any significant differences, as the methods are highly correlated. Moment and graphic skewness show less comparability than the mean size and standard deviation. The moment and graphic kurtosis estimate different properties and are not comparable.