New data concerning the ferromanganese crusts of the Mendeleev rise (Arctic Ocean)

The results of study of Fe-Mn crusts from the Mendeleev Rise in the Arctic Ocean in 2016 sampled with manipulators from a submarine are presented. Concentrations of Fe, Mn, Co, Ni, Zn, Cu, Cr and Pb are measured in collected Fe-Mn crusts. The variations in the content of these elements are determined by the chemical properties of the elements, the height of the underwater topography, the composition of the underlying substrate and the presence of bottom silt.