Alkaline magmatism of the Vitim province, West Transbaikalia, Russia: Age, mineralogical, geochemical and isotope (О, C, D, Sr and Nd) data

► There are Early and Late Paleozoic stages of the rocks formation. ► The rocks were derived from a source composed of three components PREMA, EM II and marine carbonate. ► Contamination was responsible for change in the composition in the system.