Fig. 2From: Bristen granite: a highly differentiated, fluorite-bearing A-type granite from the Aar massif, Central Alps, SwitzerlandGeological section along the Gotthard rail tunnel (Fig. 1) showing the location and setting of the Bristen granite (Guntli et al. 2016). The Intschi formation comprises Paleozoic metasediments and metarhyolitesBack to article page