Fig. 3
From: Hydrothermal alteration of andesitic lava domes can lead to explosive volcanic behaviour
Pore pressure augmentation within and beneath a lava dome. a Model setup. b–d Numerical models showing the magnitude and distribution of pore overpressure (white and yellow represent high overpressure and red and dark red represent low overpressure) for domes with different equivalent permeabilities (ranging from 10−11 to 10−13 m2). The models in panels b, c, and d are designed to represent an unaltered, moderately altered, and highly altered dome, respectively. OP overpressure
