During the Devonian magmatism (370 Ma ago) ∼20 ultrabasic-alkaline-carbonatite complexes (UACC) were formed in the Kola Peninsula (north-east of the Baltic Shield). In order to understand mantle and crust sources and ...
The Kovdor intrusion belongs to the Paleozoic 380–360 Ma Kola alkaline and carbonatite province NW Russia . It displays a complete sequence of rocks that include in order of intrusion, ultramafic rocks, melilitolites, ...