Fig. 7: Comparison of the numerical solutions for the reference and external volatile simulations.
From: Role of volatiles in highly explosive basaltic eruptions
Evolution of (a) pressure, (b) exsolved gas volume fraction, (c) mixture velocity, and (d) mass eruption rate along the conduit obtained for the Etna 122 BCE reference case (blue solid lines) and for the external H2O (green solid lines) and CO2 (cyan dashed lines) cases. Compared to the first set of simulations, an increase in volatile content of 1 wt.% due to the interaction with an external volatile source results in magma chamber pressurisation and expansion, and ultimately in an increase in MER.
