The grain size distribution of particulate material is of particular interest in the field of sediment transport. The size distribution is described by various
geochemical 基线和 31 个元素的分发(艾尔, Fe , K , Na , Mg , Ca , Mn , Ba , Cr , Zr , Ni , Sr , Zn , Y ,李, Cu ,瞬间, Nb , Th ,公司, Ga , W , Ta ,, Ti , Ge , Se ,双性人, Te , Sc 和 Re )并且