Main features of the Timan topography

Abstract

Most typical topographic features of Timan are discussed and an orographic scheme of the ridge is suggested. The chain of low uplands the Timan Ridge cosists of has been formed by active tectonic movements (neotectonics in particular), the passive lithological control being of minor significance. Within the limits of the ridge an erosional planation surface exists which is subdivided into two levels of different age (both withing Mesozoic time). A series of accumulative steplike surfaces is situated at 140-180 m a. s. l. and lower. The possibility has been confirmed to consider the Timan Ridge to be of the same genetic group with other platformian ridges of the Russian Plain.