The dichotomy between partial melting and metasomatism is a paradigm of mantle geochemistry since the pioneering work Frey Prinz (1978) on occurrence LREE-enriched harzburgites. However, thermo-chemical implications such two-stage scenarios are often poorly considered, latter fail to explain why trace-element enrichment major-element depletion proportional. We here re-envisage petrogenesis famo...

Three of the largest granite porphyries northern Portugal were studied to improve current knowledge on regional felsic vein hypabyssal magmatism. All exhibit microcrystalline groundmasses variable granularity (composed quartz, K-feldspar, and muscovite), plagioclase, biotite, cordierite phenocrysts, antirapakivi rapakivi feldspars, embayments in enrichments rare metal incompatible elements. The...