Destructive processes in the remodelling of topography of the Buor-Khaya Bay coast

Abstract

The relief of northern Verkhoyansky Ridge was rejuvenated not only due to upwarping of the land surface, but also due Io tectonic destruction of the coastal area resulting from the enlargement of the Buor-Khaya rift. The latter also brought about changes in faults pattern and in consequence - a rearrangement of valey network. Prevailing during the Miocene nor thorn direction of valleys changed into north-eastern during Pliocene - Early Pleistocene and to eastern towards the end of the Quaternary. The seisrnogenous landforms relation to marine terraces dating to the Karginsky and post-glacial transgressions permits to establish the time of the recent changes in the tectonic structures and of the arch morphostructures collapse. The evidence of Belugalakh seismic dislocations points to the ongoing tectonic processes in the Verkhoyansky Ridge coastal area, their rate being steadily increased.