faulting Argentina 14 extensional tectonics 14 South America 10 deformation 6 fault zone 6 fold and thrust belt 6 outcrop 6 Andes 4 Breccias 4 Fault rocks 4 Microbreccia cohesive 4 Miocene 4 Neotectonics 4 Patagonia 4 Precambrian 4 Sierras Australes 4 Sierras Septentrionales 4 Sierras de Buenos Aires 4 breccia 4 deformation mechanism 4 displacement 4 greenschist facies 4 kinematics 4 metamorphism 4 neotectonics 4 protolith 4 quartzite 4 subduction 4 tectonic evolution 4