GEOCHEMISTRY AND PROTOLITH NATURE OF METABASITES FROM THE TEREKTY BLUESCHIST-GREENSCHIST COMPLEX (GORNY ALTAI)

Abstract

In the sampled section by Nizhnyaya Katanda river the Uimon series is represented by a package of tectonic plates composed primarily from metabasites, metagraywackes, quartzites with piedmontite and spessartite, shallow marble lentils. The differences in rock chemical composition are established between galucophane and green schist within one section, which determine the observed composition variations of Uimon series' metabasite amphiboles. Metapelites reconstructed as graywackes can be considered as volcagenic-sedimentary phases of underwater volcano' flank zones, and stratified metastreaks and marble - as ancient pelagic sediments and shoal-marina carbonate rocks of seamount sedimentary mantle respectively.