Fig. 14

Trace element ratios of zircons from samples B19-1417 (RG1), B20-3247 (RG2), and B20-2801 (QB-SZ). The subscript ‘norm’ indicates normalized values (chondrite-noramlized after Sun and McDonough, 1989). Colors indicate different textures of the zircons and correspond to the legends in Figs. 13a–c. a Sm–La-ratio (chondrite-normalized) versus Ce anomaly, where \(\hbox {Ce}^*\) is defined by \((\hbox {La}_{\mathrm{norm}}+\hbox {Pr}_{\mathrm{norm}})/2\). Magmatic and hydrothermal domains after Hoskin (2005). b Eu anomaly versus Ce anomaly, where \(\hbox {Eu}^*\) is defined by \((\hbox {Sm}_{\mathrm{norm}}+\hbox {Gd}_{\mathrm{norm}})/2\). c Th–U-ratio versus Zr–Hf-ratio