Abstract
Variations in the contents of Fe and Mn and a number of trace elements (Co, Ni, Cu, Zn, As, Rb, Sr, Y, Zr, Pb, Th, U, Te, Ba, La, Ce, Nb, and Mo) were simultaneously measured in microlayers in samples of cobalt-rich ferromanganese crusts from the surface of three guyots of the Magellan Seamounts by means of synchrotron micro-XRF analysis on a VEPP-3 accelerator facility at the Institute of Nuclear Physics of the Siberian Branch of the Russian Academy of Sciences. Micro-scale periodic variations were detected in the contents of most trace elements. The high and low contents of Co, Ni, and Mo in the crusts display also a larger scale periodicity.
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