Sorption of Y 3+, La 3+ AND Се 3+ cations on the cobalt-rich manganese crusts of the Magellan Rise and Marcus-Wake seamounts, Pacific Ocean

Cobalt-rich manganese crusts and crust-concretion formations from the guyots of the Pacific Ocean were found to be the natural highly selective sorbents of rare-earth cations Ce 3+ , Y 3+ , La 3+ . Ion exchange capacity of ore minerals — vernadite, Fe-vernadite and Mn-ferroxyhyte — increases in the following sequence La 3+ ion exchangers. Ore minerals of crusts exhibit higher selectivity to Се 3+ cation compared to Y 3+ и La 3+ . The age of ore minerals does not affect their sorption with respect to rare earth element cations.