“…6). Similar major provenance shifts from the bimodal (1.5 and 1.8 Ga) to polymodal distribution with a Neoproterozoic cluster were reported from Estonia (Isozaki et al, 2014), the Russian part of the Baltic Monoclise (Kuznetsov et al, 2011;Ivleva et al, 2016) and Scandinavia (lower Cambrian in Lorentzen et al, 2017 vs. middle-upper Cambrian in Slàma andPedersen, 2015;Sláma, 2016). Similarly, the middle Cambrian sediments of the Okuniew IG-1 borehole (Podlasie Depression Poland, SW part of the EEC; Valverde-Vaquero et al, 2000) and of the Syczyn OU1 borehole (Lublin Basin; Porębski et al, 2019) contain a Neoproterozoic zircon cluster.…”