A TENTATIVE FOR A WATERSHED MORPHODYNAMICS RECONSTRUCTION IN THE NORTHERN PRIAZOV’E (TEST SITE MELEKINO, DONETSK REGION, UKRAINE)

A. A. Velichko; E. A. Konstantinov

doi:10.15356/0435-4281-2013-3-51-61

A TENTATIVE FOR A WATERSHED MORPHODYNAMICS RECONSTRUCTION IN THE NORTHERN PRIAZOV’E (TEST SITE MELEKINO, DONETSK REGION, UKRAINE)

A. A. Velichko, E. A. Konstantinov

https://doi.org/10.15356/0435-4281-2013-3-51-61

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Abstract

The loess-soil series structure of Melekino test site was studied in detail in the coastal outcrop and the drill profile. It is possible to reveal specific features of watershed morphodynamics in the Northern Azov region since the Muchkap time (MIS 13, ~ 470-500 kyr). The position of paleosols and textural features of deposits indicate leading role of loess accumulation in the development of watersheds relief before the Valdai glacial epoch. Intensity of denudation was a relatively low at the time. Stage of unique denudation intensity was diagnosed for the Valdai glacial epoch (as follows from indirect data, to its end - MIS 2, ~ 29-12 kyr). The denudation resulted in the development of linear erosion and slope processes even on gentle slopes (2-4 degrees). Analysis of paleosol deformations revealed the specific of watersheds relief evolution during the transitions from interglacial to glacial epochs. We determined that early stages of glacial epochs were characterized by sharp intensification of processes of arid and cryo-arid types. These processes led to the formation of specific micro-knobby surface.

Keywords

Northern Azov region, interfluve plate, loess-soil series, morphodynamics, mesorelief, interglacial epoch, glacial epoch

About the Authors

A. A. Velichko

Institute of Geography RAS, Moscow
Russian Federation

E. A. Konstantinov

Institute of Geography RAS, Moscow
Russian Federation

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Review

For citations:

Velichko A.A., Konstantinov E.A. A TENTATIVE FOR A WATERSHED MORPHODYNAMICS RECONSTRUCTION IN THE NORTHERN PRIAZOV’E (TEST SITE MELEKINO, DONETSK REGION, UKRAINE). Geomorfologiya. 2013;(3):51-61. (In Russ.) https://doi.org/10.15356/0435-4281-2013-3-51-61