Fig. 6
From: Transient rheology of the Sumatran mantle wedge revealed by a decade of great earthquakes
Effective viscosities derived from the bi-viscous Burgers rheological model with transient Kelvin and background or steady-state Maxwell viscosity estimates. a Colours indicate the inferred Kelvin viscosity of each cuboid. Cuboids lacking sufficient resolution to provide a robust viscosity estimate are filled with pale yellow and labelled as unresolved cuboids. Slip contours of the great earthquakes are the same as Figs. 1 and 2. We select two of the better-resolved cuboids (labelled (1) and (2), where (2) and (3) are also illustrated in Fig. 8) to illustrate the temporal evolution of effective viscosity in c, d. Volcanoes on Sumatra are represented by grey triangles and active ones shown as red. b Same as a but for the inferred Maxwell viscosities. c,d Time evolution of effective viscosity at cuboids 1 and 2 in a and the best-fit equivalent Burgers rheological model, respectively
