Dating Palaeoproterozoic glacial deposits of the Fennoscandian Shield using detrital zircons from the Kola Peninsula, Russia

The detrital zircon age spectra of eight analysed samples show an Archaean dominance and reoccurring peaks around 2800-2750 Ma,which indicate similar origins for the zircons. Such peaks are corroborating with a major global crustal generation event being recorded in detrital zircon spectra worldwide. Additionally, certain age populations around 2440 Ma and 2500 Ma are present and indicate a correlation with intrusive magmatism that affected the region at that time and support a correlation based on overlapping age distributions.