Chemical composition and geodynamic conditions of amphibolites and garnet eclogites protoliths formation in the Marunkeu complex (the Polar Urals)

The chemical composition of the marunkeu complex metabasites (amphibolites and almandine eclogites) is considered. The rocks protoliths are shown to have been formed by tholeitic basalts and andesite-basalts in geodynamic conditions of the marginal (backarc) sea.