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Distribution of dissolved forms of iron and manganese in the Black Sea
Date
2006-01-01
Author
YEMENİCİOĞLU, SEMAL
Erdogan, Selahattin
Tuğrul, Süleyman
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Dissolved forms of the redox-sensitive elements manganese (Mn-DISS) and iron (Fe(II) and Fe(III)) were measured in the oxic/anoxic transition zone, or suboxic zone, of the Black Sea. An offset was found between dissolved manganese and iron gradients at all stations. In the western cyclonic gyre of the Black Sea, the onset of dissolved Mn (> 0.1 mu M) was located at a density of about sigma(t) = 15.85, where the concentration of dissolved oxygen (DO) was less than 5 mu M. The onset of dissolved Fe(II) (> 0.025 mu M) was at sigma(t) = 15.90, just above the increases in hydrogen sulfide. These characteristic features were modified in the southern coastal waters by such physical processes as the rim current, formation of anticyclonic eddies, and injection of saline, oxygenated Marmara Sea waters from the Bosporus in the Bosporus Plume.
Subject Keywords
Oceanography
URI
https://hdl.handle.net/11511/57278
Journal
DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY
DOI
https://doi.org/10.1016/j.dsr2.2006.03.014
Collections
Graduate School of Marine Sciences, Article