Major, trace, and rare earth element as well as C, O, and Sr isotope geochemistry is used to provide new insights into the characteristics and depositional environment of the protolith of the Föderata Group metacarbonates in the southern Veporicum cover sequence (Western Carpathians, Slovakia). The metacarbonates are characterized by high LOI and CaO and by small contents of various insoluble components. | Geochemistry and C, O, and Sr isotope composition of the Föderata Group metacarbonates (southern Veporicum, Western Carpathians, Slovakia): constraints on the nature of protolith and its depositional environment