Biogeochemical migration of metals of the iron group during the peatbog accumulation in the eutrophic marsh of Western Siberia

In an eutrophic marsh, Fe, Mn, Ni, and Co are the elements of moderate biological capture and Cr is the element of weak biological capture. Over the history of the peatbog formation migration of elements is determined by the oxidation-reduction zonality of the peatbog thickness, the quality of humous barriers, and the carbonate equilibrium in the stagnant waters. No technogenic degradation of the marshes in the southern taiga of Western Siberia has been detected. (author)