Deciphering geochemical variations driven by metasomatism around a lithium pegmatite at the Gonçalo deposit, Portugal: implications for rare-metal exploration in granitic terranes of the European Variscan Belt
Jon Errandonea-Martin·Armindo Lima·Nora Santos-Loyola·Idoia Garate-Olave·Fernando Sarrionandia·Encarnación Roda-Robles·S. García de Madinabeitia
Geochemical halos surrounding Li-rich pegmatites represent a potentially effective vectoring tool for the exploration of concealed deposits. To determine the petrochemical processes triggered by fluids derived from evolved pegmatitic melts in granitic host rocks, this work investigates the geochemical anomalies around a lepidolite-rich pegmatite at Gonçalo (Portugal). The study combines EMPA and LA-ICP-MS analyses of rock-forming minerals from the pegmatite and host monzogranite, along with whol