Comparative in-situ U-Th-Pb geochronology and trace element composition of baddeleyite and low-U zircon from carbonatites of the Palaeozoic Kovdor alkaline-ultramafic complex, Kola Peninsula, Russia

► Baddeleyite from the Kovdor Massif gives the concordant age of 379.1 ± 3.7 Ma. ► Low-U co-existing zircon yields imprecise age and has extraordinarily high Th/U up to 9050. ► We report also the first in-situ trace elements data for Kovdor baddeleyite.