Characterization and facies analysis of the hydrovolcanic deposits of Montaña Pelada tuff ring: Tenerife, Canary Islands

► Water-magma interaction drove the evolution of the eruption of Montaña Pelada. ► Proximal deposits suggest high W/M ratios at the beginning of the eruption. ► Turbulent pyroclastic surges indicate lower W/M ratios and higher effective fragmentation. ► The new hydrological conditions allowed the input of phreatic waters, increasing the W/M and reducing the fragmentation degree.