fault zone Argentina 14 tectonic setting 10 Jurassic 8 South America 8 Triassic 8 deformation mechanism 8 displacement 8 extensional tectonics 8 structural geology 8 tectonic evolution 8 Patagonia 6 depocenter 6 faulting 6 transtension 6 Andes 4 Basement rocks 4 Breccias 4 Central patagonian batholith 4 Chubut 4 Cushamen 4 Extension 4 Fault rocks 4 Garnet zonation 4 Gastre 4 Gastre fault system 4 Main Cordillera 4 Mendoza 4 Microbreccia cohesive 4 Miocene 4