Garnet phenocrysts in Early Miocene intrusives in Central Chile: Evidence for a crystal fractionation origin of adakite-like magmas

Adakitic-like rocks are andesitic to dacitic hydrous magmas that exhibit fractionated REE patterns (high La/Yb) consistent with gamet involvement as weil as evidence for Jack of plagioclase in the residual assemblage (high Sr, no Eu anomaly). Compared to normal evolved arc magmas, adakitic rocks tend to have slightly higher contents of compatible elements (Mg, Cr, Ni), but have similar or lower concentrations of incompatibl