Simplectite high-pressure garnet-clinopyroxene-margarite-muscovite-clinozoisite amphibolite of the Dakhov salient, Northern Caucasus: Genesis and composition of the reaction structures

Abstract

The results of investigation of simplectite garnet amphibolites found among the salient's rocks allow concluding that all metamorphites of the massif belong to high-pressure series. In the studied rocks omphazite relicts weren't observed (that not agreeing with traditional concept of Cpx-Hbl-Pl-simplectites formation); Cpx-Hbl-Pl-simplectites are dominating but not only reaction structures in the rocks and their microsound analysis enables to reveal rocks' complex prograde-retrograde metamorphic history