GEOCHRONOLOGY, GEOCHEMISTRY, AND GEODYNAMIC SETTING OF PALEOZOIC GRANITOIDS IN THE EASTERN SEGMENT OF MONGOL-OKHOTSK BELT

Abstract

Investigated is a series of granitoid massifs in the composition of Yankansky, Tukuringrskii, Jagdinsky, Seledjino-Kerbinsky, Tokursky terrenes. The results of U-Pb-geochronologic, geochemical and Sm-Nd-isotope-geochemical analyses imply that eastern segment of the Mongolian-Okhotsk fold belt contains granitoid complexes of wide age range: from Early to Late Paleozoic period. The obtained data enable to concretize substantially the history of Mongolian-Okhotsk fold belt.