10.6084/m9.figshare.5144197.v1 Paul Gillespie Paul Gillespie Günther Kampfer Günther Kampfer Fig. A2. Mechanical constraints on kink band and thrust development in the Appalachian Plateau, USA Geological Society of London 2017 velocity axes USA 2. Mechanical constraints traction vector support function Appalachian Plateau Virtual velocity fields Û velocity jump vector domain Ω 5 domains stress axes discontinuity Σ U force Q anticlockwise counterparts 2 C dilatant shear strength domain 1 C compacting shear velocity Ĵ thrust development kink band Geology 2017-06-26 14:45:46 Figure https://geolsoc.figshare.com/articles/figure/Fig_A2_Mechanical_constraints_on_kink_band_and_thrust_development_in_the_Appalachian_Plateau_USA/5144197 (<b>a</b>) A solid domain Ω loaded with the force Q. Virtual velocity fields Û on the positive and the negative side of a discontinuity ΣU, where rupture occurs. The jump in velocity Ĵ is given by [[Û]]=Û<sup>+</sup> – Û<sup>–</sup> (Kampfer 2010). (<b>b</b>)The strength domain is plotted with velocity axes aligned with the stress axes, showing the traction vector and the velocity jump vector, which have a power of maximum resistance described by the support function, for each of the 5 domains, which are opening, dilatant shear, compacting shear and compaction, respectively. The clockwise domains, 1C, 2C etc. are plotted, whereas their anticlockwise counterparts, 1A, 2A etc. are not shown.