PALEOSEISMOLOGICAL AND ARCHAEOSEISMOLOGICAL RESEARCHES OF THE SOUTHERN TANNU-OLA
Complex paleoseismological and archaeological surveys were carried out in the key areas of seismic hazard zones with objects of cultural heritage for detecting seismic activity traces and determining their dating. The studies were outlined and carried out in the poorly studied system of Tannu-Ola ridges. Winding system of ledges is traced along the foot of the mentioned ridge. The planned configuration of the system of ledges allows us to consider them as the result of young displacements of the thrust type. Presumably, the last movement led to a warp of the mound which turned out to be slightly blocked by sediments from the ledge. Mounds identified on the river Ulug-Orug can be attributed to the period of Scythian culture and date from the VIII-VII centuries BC. So the age of the last movement can be limited by the lower age frame - from the VIII-VII centuries.