The WGC forms part of the Balticshield, which according to Gorbatschev & Gaal (1987)grew during 4 orogenies between 3.5 and 1.5 Ga, followedby reworking during the Sveconorwegian and Caledo-nian events. Tucker et al. (1990) suggest that the Sveco-norwegian influence was limited to the ...