SHORT-RANGE MOBILIZATION OF ELEMENTS IN THE BIOTITE ZONE OF CONTACT AUREOLE OF THE KHARLOVO GABBRO MASSIF (RUSSIA)

Abstract

Mass balance and compositional variation in the outer part of the contact aureole shows that mass transfer of the main petrogenetic components was confined to small domains of a few hundredths of mm3 in chlorite-biotite-mica and epidote-plagioclase-titanomagnetite aggregates. The chemical homogeneity of the environment was practically unaffected by the thermal metamorphism.