Fig. 2
From: Andean surface uplift constrained by radiogenic isotopes of arc lavas
Andean lavas are produced by mixing of depleted mantle melts with radiogenic crust. Sr-Nd radiogenic isotope plot of Quaternary lavas from the NVZ, CVZ and SVZ (compilation from this study, Methods and Supplementary Data 1) and CVZ ignimbrites73 in comparison to Palaeozoic continental crust and mantle end members, including Depleted Mantle (Pacific MORB), enriched sub-continental lithospheric mantle (SCLM) and Enriched Mantle I (EMI); from ref. 56 and references therein. Andean frontal-arc lavas follow a trend from a depleted mantle source to Palaeozoic crust and are not thought to be influenced by enriched mantle sources56
