Whole-rock geochemical and isotopic characterization of kamafugites from Pleistocene Cupaello volcano (Italy)

The Cupaello volcano (~640 kyr) belongs to the Intra Apennine Province (IAP; central Italy). The monogenetic activity emplaced a single lava flow, exhibiting a kamafugitic composition (primary kalsilite-bearing volcanic products) and pyroclastic deposits. Cupaello kamafugite are ultrapotassic, ultracalcic, ultrabasic and SiO2-undersaturated. Such lavas show a peculiar paragenesis, represented by: kalsilite, melilite, phlogopite, clinopyroxene, calcite, olivine and glass, plus accessory minerals (opaque phases, perovskite, monticellite, apatite, wollastonite, titanite, baryte, chlorite and khibinskite). This dataset constitutes a whole-rock geochemical and isotopic characterization of eight Cupaello kamafugites and few local sedimatery samples aiming to shed lights on their petrogenesis (as the fractionaction history and the possible involvement of crustal limestone digestion during the magma ascent to the surface).