Size Frequency Distributions of Sediments and the Normal Phi Curve

摘要: ABSTRACT The substitution of a logarithmic variable in the Gaussian function yields probability law (the normal phi curve) which has all geometrical properties conventional law. That is, it is bell-shaped and symmetrical about its mean value, completely described by two parameters, standard deviation. Simple analytic graphic methods are for testing data normalcy. Finally, some theoretical implications curves given, terms environmental factors may control them.