The first Archean eclogite was announced from the Salma and Gridino complexes of Belomorian Province(Russia)in Fennoscandian Shield(Fig.1a)[1]that has aroused quite a resonance worldwide from all aspects;the debates on the actual age of the Belomorian eclogites have never stopped ever since and in all there are three scenarios are suggested(1)one time in Mesoarchean,(2)two times in Neoarchean and Paleoproterozoic and(3)one time in The first Archean eclogite was announced from the Salma and Gridino complexes of Belomorian Province (Russia) in Fennoscandian Shield (Fig.1a) [1] that has aroused quite a resonance worldwide from all aspects; the debates on the actual age of the Belomorian eclogites have never stopped ever since and in all there are three scenes are suggested (1) one time in Mesoarchean, (2) two times in Neoarchean and Paleoproterozoic and (3) one time in