ABSTRACT

Nakajima and Terakado (2003) measured rare earth elements in stream waters from eleven locations in the Rokko granite area. The present paper examines their data in the light of a model in which each sample arises from mixing two sources, followed by concentration or dilution. The concentrations of rare earth elements in the specimens will then follow particular equations, and a straight line will be seen if the data are plotted in a certain way. It is concluded that data from some, perhaps all, of the locations is compatible with this model.