Geology of late-Variscan Sàrrabus pluton (southeastern Sardinia, Italy)

his paper deals with the geological mapping of the late-Variscan Sàrrabus pluton, (southeastern Sardinia), a shallow multiple and composite igneous complex dominated by severalgenerations of granodiorites, metaluminous and peraluminous granites and repeated pulsesof mantle-derived mafic magmas. The map has been compiled based on geological surveysat 1:10,000 and 1:5,000 scales, assisted by in situ gamma-ray spectrometry and detailedpetrographic investigations. Granite-related ore deposits have been also reported. Theemplacement age of the pluton can be constrained by U/Pb dating on zircons of CalaRegina granodiorite, yielding an age of 286 ± 9 Ma. The resulting scenario documents abimodal magmatism controlled by an EW trending shear zone, f