GEOCHEMISTRY AND ORIGIN OF CORDIERITE ORTHOAMPHIBOLE ORTHO-PYROXENE PHLOGOPITE ROCKS FROM NAMAQUALAND, SOUTH-AFRICA

A suite of cordierite-orthoamphibole, cordierite-orthopyroxene and cordierite-phlogopite gneisses are described from the amphibolite-and granulite-facies region of the western Namaqualand Metamorphic Complex. The gneisses are directly associated with underlying ? and overlying metapelitic rocks to w...