Heterogeneous Processes of Geochemical Migration

The problem of the geochemical migration of elements has received wide attention in the works of V. I. Vernadskii and A. E. Fersman [1, 2J. Vernadskii considered geochemistry to be the science of the history of chemical elements on the earth, their distribution and move­ ments in space and time, and their genetic relations [IJ. Geochemical migration was defined by Fersman as "the movement of chemi...