Fig. 18From: Bristen granite: a highly differentiated, fluorite-bearing A-type granite from the Aar massif, Central Alps, SwitzerlandCotectic points in the system Qtz-Ab-Kfs (Blundy and Cashman 2001). Bristen granite samples (in red) cluster around the cotectic point at 100 MPa. Units = weight fractionsBack to article page