Issue: 6 , Volume: 23 , Уear of publication: 1982

This article considers the problems of distinguishing and mapping the Ordovician stratigraphic units in the northwestern part of the Gornyi Altai region. New materials on their stratigraphy are presented. The graptolite scale is the basis for a new version of the correlation of the sections in the Anui-Chuya and the Charysh-Inya synclinoria.