“…With regard to the mid-and early Archaean, Hf and Nd isotope signatures J o u r n a l P r e -p r o o f Journal Pre-proof the radiogenic isotope systematics since a major event effected the BML at ca. 3.2 Ga (Dziggel et al, 2002;Stevens et al, 2002;Kisters et al, 2003;Dziggel et al, 2005;Dziggel et al, 2006;Schoene and Bowring, 2010;Lana et al, 2011;Kröner et al, 2018;Wang et al, 2020) that is ca. 250 Ma younger than the emplacement of the early TTG at ~3.45 Ga (Kamo and Davis, 1994;De Ronde and Kamo, 2000;Poujol et al, 2003;Moyen et al, 2019;Laurent et al, 2020;Wang et al, 2020).…”