A chemostratigraphic investigation of the prehistoric Vavalaci lava sequence on Mount Etna: Simulating borehole drilling

► Vavalaci Centre-mildly Na-alkaline lavas with diverging alkali enrichment. ► Separate fractionation/evolution paths for the high- and low-alkali groups. ► Geostratigraphical correlation of the lavas using a statistical approach with R. ► Schematic chronostratigraphy of the Vavalaci lavas. ► Simulation of core sampling using boreholes.