Fig. 6
From: Provenance of Cretaceous synorogenic sediments from the NW Dinarides (Croatia)
Detrital tourmaline compositions from Cretaceous sandstones. a Chemistry of detrital tourmalines from each of the studied formations plotted onto Al–Fe–Mg diagrams. Discrimination fields are after Henry and Guidotti (1985): (1) Li-rich granitoids, (2) Li-poor granitoids, (3) Fe3+-rich Qtz-Tur rocks (hydrothermally altered granites), (4) Metapelites coexisting with an Al-saturating phase, (5) Metapelites not coexisting with an Al-saturating phase, (6) Fe3+-rich Qtz–Tur rocks/skarns/metapelites, (7) Low-Ca metaultramafics and Cr and V-rich metasediments, (8) Metacarbonates and meta-pyroxenites. b Plot showing the proportions of tourmaline measurements falling into the fields of the Al–Fe–Mg diagrams. c Plots of Ti versus Zn in tourmalines which show a dominance of tourmalines with metamorphic affinity. Discrimination criteria is after Viator (2003)