Fig. 17From: Tectonometamorphic history of the Gruf complex (Central Alps): exhumation of a granulite–migmatite complex with the Bergell plutonDelimitation of migmatites (after Burri et al. 2005) and location of the sillimanite-K-feldspar isograds in the Central Alps. This isograd corresponds to the fluid-absent muscovite (+ plagioclase + quartz) melting (reaction 1 in the text) and is drawn following Burri et al. (2005) for the area around Bellinzona and according to this study for the Gruf complex. Swiss coordinates in kilometresBack to article page