primary geochemical differentiation

Updated About encyclopedia.com content Print Article Share Article
views updated

primary geochemical differentiation A theory explaining the formation of the Earth's core, mantle, and crust, in which the formation of the nickel—iron core may have been accompanied by partitioning of the elements. It postulates that some of the elements were reduced, alloyed with iron, and concentrated in the core, while the remainder formed the mantle and primitive crust.