Comment on “Rare earth elements in stream waters from the Rokko granite area, Japan: Effect of weathering degree of watershed rocks” by Nakajima and Terakado, Geochemical Journal, 37, 181–198, 2003

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.