Abstract

Abstract The westerly, subsurface extension of th; high-grade Seve part of the Seve—Köli Nappe Complex is discussed on the basis of a regional compilation, involving field results from northern Jämtland and southern Västerbotten, supplemented by a study of existing maps and literature. It is shown that, from Torneträsk in northern Norrbotten to Qvarnbergsvattnet in northern Jämtland, Seve rocks are completely limited to Swedish territory, entering Norway in the Grong area. Suggestions are made regarding their further extension to the south. The geometry of the Seve wedge implies that the major basal thrust-plane beneath the Nappe Complex cuts upwards through the structural and stratigraphic sequences towards the more central zone of the orogenic belt.

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