Fig. 8: Variation in eruption duration and erupted volume with inlet pressure for different chamber volumes for Plinian phase TLL2 of the MTL eruption.
Results for the crystal-poor endmember are shown by the open diamonds, and results for the crystal-rich endmember are shown by the filled squares for the variation in (a) eruption duration and (b) erupted volume with inlet pressure. The duration and erupted volume of Plinian phase TLL2 calculated by Pérez et al.3 (phase II) are shown as grey bars. In (b) we plot only the results of the crystal-poor simulations, as those of the crystal-rich simulations are coincident, but instead the final crystal-rich simulation corresponds to an inlet pressure of 28 MPa. The crystal-poor and crystal-rich simulations are coincident as a result of Eq. (4), where the erupted volume depends on the properties of the magma chamber and δpch, which are fixed for a given simulation.
