Recent vertical crustal movements in the Altai-Sayan province have been investigated using a map model based on comprehensive analysis of repeated leveling geodetic data. The model parameters were obtained from the equation of a leveling network consisting of eight closed polygons and lines of 11,000 km in total length.
The modeled distribution of recent land uplift rates in the province shows that the Biya-Katun’, Barnaul, and Mras blocks are stable, the territory south of the Barnaul-Biya-Katun’ stable block is involved in regional-scale doming, and the province’s northwestern part north of the stable zone experiences subsidence. The doming is accompanied by local but often considerable subsidence which causes further deepening of intermontane depressions.
The recent movements follow the neotectonic evolution in some regions but depart from the neotectonic trends in others. The obtained model was applied to detection of active fault zones.
