Partial melting of the dry mafic continental crust: Implications for petrogenesis of C-type adakites

Post-collisional granitoids from the Dabie orogen: New evidence for partial melting of a thickened continental crust

“…Given that garnet is the only rock-forming mineral that can substantially fractionate middle REE from heavy REE, high (Dy/Yb) N ratios may better reveal the involvement of garnet than high Sr/Y and (La/Yb) N (Huang and He, 2010). Furthermore, as D REE values increase with atomic numbers, garnet is the only rock-forming mineral that can (Rudnick and Gao, 2003).…”

Early Cretaceous low-Mg adakitic granites from the Dabie orogen, eastern China: Petrogenesis and implications for destruction of the over-thickened lower continental crust

“…(La/Yb) N (17.0-105.2) is higher than the values of upper (15.5) and lower continental crust (5.3) (Rudnick and Gao, 2003), indicating strong fractionation of the REE in the Tiantangzhai monzogranites. Anomalously high (Gd/Yb) N ratios (2.1-6.2, most > 3.0) with the depletions of HREE and Y in the monzogranites imply that the equilibrated residues are rich in garnet (Huang and He, 2010). In the primitive mantle normalized figure (Fig.…”

Petrogenesis of the Early Eocene adakitic rocks in the Napuri area, southern Lhasa: Partial melting of thickened lower crust during slab break-off and implications for crustal thickening in southern Tibet

“…Given that garnet is the only rock-forming mineral that can substantially fractionate middle REE from heavy REE, Huang and He (2010) suggested that high (Dy/Yb) N ratios best reveal the involvement of garnet. Moreover, as D REE values increase with atomic numbers, garnet is the only rock-forming mineral that can substantially enhance both (La/Yb) N and (Dy/Yb) N (or (Gd/Yb) N ) of magmas (e.g., Klein et al, 2000).…”