глава в монографии

En

Springer Proceedings in Earth and Environmental Sciences

ISSN:2524342

2023

10.1007/978-3-031-47851-2_29

DNSPDN

The features of the spatial distribution of geochemical characteristics and the chemical profile of the pore waters of bottom sediments of the north-eastern coastal zone of Black Sea are studied. It has been established that the surface (0–5 cm) sediment layer is formed mainly by silty material, the proportion of which increases with increasing sampling depth, as well as in the areas where large rivers of the Caucasus flow in. The results of the analysis of the chemical composition of pore water showed that in most of the studied areas, oxic conditions prevail in the upper layer of sediments and an oxygen fluxes are formed at the boundary with the bottom water layer. The oxygen flux values are determined by the oxygen concentration gradient between the surface layer of sediments and the bottom layer of water, as well as the granulometric composition of the sediment. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2023.

Black Sea, Bottom sediments, Granulometric composition, Organic carbon, Oxygen, Pore water

2024-02-05 14:56:17