статья в журнале

En

Physical Oceanography
eSSN:1573-160

2023

QSWYLR

Purpose. The investigation is purposed at studying the features of the vertical distribution of geochemical parameters and chemical profile of pore waters in bottom sediments in the coastal zone of the northeastern part of the Black Sea. Methods and Results. 24 samples of the bottom sediments surface layer were obtained in three cruises on the R/V “Professor Vodyanitsky” in September 2018, July 2019 and August 2021. 5 samples of cores and 9 samples of water from the near-bottom layer were taken in August 2021. The profiles of vertical distribution of oxygen and hydrogen sulfide, the iron oxidized and reduced forms in pore waters, and also oxygen concentration and the degree of oxygen-saturation of the near-bottom waters were studied; the geochemical characteristics of bottom sediments in the surface layer (0-5 cm) and in the cores were also determined. It was noted that the sediments surface layer in the northeastern region was formed by a silty material, the maximum portion of which (83-97%) was recorded in the areas where large rivers of the Krasnodar region flowed into the sea...

bottom sediments, pore waters, oxygen, voltammetry, granulometric composition, organic carbon, Black Sea

2024-02-01 11:21:01