COMPOSITION OF AMPHIBOLES FROM MAFITIC INTRUSIONS OF KOLA PENINSULA

摘要

Peculiarities of chemical composition and isomorphous replacement in primary amphiboles from intrusions of clinopyroxenite-wehrlite and gabbro-wehrlite formations have been studied with factor and claster analysis. These methods have allowed to verify the identification of amphiboles related to the Mg-Fe row of Ti-pargasite. It is shown that the character of isomorphous replacement in each group of amphiboles is determined by changeability of composition and different formation conditions of rocks.