Abstract <p>The use of morphostructural analysis and cosmogeological interpretation techniques when working with visualized digital elevation models (DEMs) of the Magellan Seamounts (previously called Magellan Rise) have made it possible to identify the spatial and hierarchical organization of ring anomalies and lineaments, respectively, correlated with focal structures and fault zones of different ranks. According to the results of comprehensive studies and available regional geological data, the mantle diapirism and basaltoid volcanism, which occurred discretely in time during the Cretaceous to Middle Miocene chronological period, played a decisive role in the formation and development of this mountain system. A large (up to 270 km in radius) focal system, correlated with the projection of a sublithospheric mantle diapir and expressed in relief by a relict magmatic dome, plays a key role in the distribution of Fe, Mn, and Co mineralization in the studied Magellan Seamounts region. Ore mineralization occurred differentially in time and space over a long period, beginning in the Late Cretaceous (Campanian–Maastrichtian), against a backdrop of constantly renewing concentrations of Fe, Mn, and Co metals in the bottom layers of the water column due to hydrothermal vents and halmyrolysis. The radial-concentric distribution of ore mineralization is characteristic for a relict arch uplift and for individual paleovolcanic structures and their groupings associated with large guyots. The data serve as the basis for predictive criteria for this mineralization type.</p>