STRUCTURE AND AGE OF THE METAMORPHIC CORE COMPLEX OF THE BURGUTUI RIDGE (SOUTHWESTERN TRANSBAIKAL REGION)

Abstract

In the 1990s, peculiar Late Mesozoic structures of intracontinental extension, the so-called metamorphic core complexes (MCC), previously considered inliers of the Early Precambrian basement, were defined in the Transbaikal region. Geochronological substantiation of these structures was, however, insufficient, except for the Zagan core complex. Special geostructural investigations of the Burgutui metamorphic core make it possible to fill this gap.