Rb-Sr whole-rock investigations in the Caledonian Se ve Nappe indicate the presence of Sveconorwegian (Grenville) elements (ages about 1200-1000 Ma). The rocks underwent Caledonian metamorphism. As the thrust movement of the Seve Nappe was eastward, the crustal elements showing the imprint of the Sveconorwegian tectono-thermal event were originally located west of their present position in the Caledonian Belt. This confirms earlier indications that the Sveconorwegian 'front' turns north from the southern end of Trondheimsfjorden following the Norwegian coast on the Atlantic shelf.
A note on Rb-Sr whole-rock ages in the Seve Nappe of the central Scandinavian Caledonides