Fig. 1
From: Enhanced U-Pb detrital zircon, Lu-Hf zircon, δ18O zircon, and Sm-Nd whole rock global databases
Robinson projections of samples (red dots) in the six global databases: (a) U-Pb detrital zircon database 1, (b) U-Pb detrital zircon database 2, (c) U-Pb detrital zircon database 3, (d) Lu-Hf zircon database, (e) Sm-Nd whole-rock database, and (f) δ18O zircon database.
