“…The boundary between the granitoids of the Vaasa batholith and the schists of the Bothnian Belt is gradual through metatexites and diatexites (Mäkitie et al, 2012) with no observed intrusive contacts (Mäkitie et al, 1999;Mäkitie, 2001;Lehtonen et al, 2005;Sipilä et al, 2008). In fact, the boundary area is texturally, mineralogically, and geochemically continuous (Mäkitie et al, 2012). This has led many workers to consider the granitoids of the Vaasa complex to represent in situ melting (e.g., Mäkitie, 2001;Sipilä et al, 2008;Mäkitie et al, 2012).…”