thin skinned tectonics fold and thrust belt 12 Argentina 10 deformation 8 Andes 6 tectonic evolution 6 Deformation history 4 Fold and trusth belt 4 Folding description 4 Shortenig variation 4 South America 4 Structural analysis 4 fault propagation 4 inversion tectonics 4 normal fault 4 structural analysis 4 thrust 4 Aconcagua 2 Activity distribution 2 Andean deformation 2 Bolivia 2 Bolivian subandes 2 Chile 2 Deformation 2 Efficiency 2 Electric fault currents 2 Erosion 2 Faulting 2 Fold and thrust belt 2 Inversion and thrusting 2