Fig. 4From: Relation between rheological properties and the stress state in subducting slabsViscosity as a function of pressure and temperature calculated based on Eq. 9 with the values of Ediff = 110 kJ/mol and Vdiff = 1 cm3/mol, assuming constant t and the viscosity of 2 × 1020 Pa s at P = 4 GPa and T = 1350 ºC. P–T conditions for cold and warm slabs are shown by black linesBack to article page