Argentina 6 deformation 6 rock microstructure 6 basement rock 4 strain analysis 4 Aeromagnetic data 2 Albian 2 Cenomanian 2 Central zone 2 Fault system 2 Geophysical modeling 2 Geophysical models 2 Geophysics 2 Late cretaceous 2 Lower Cretaceous 2 Magnetic modeling 2 Modeling results 2 New model 2 Normal faults 2 Pluton emplacement 2 Sedimentary rocks 2 Sedimentology 2 South America 2 Strike-slip activity 2 Structural geology 2 Tierra del Fuego 2 Tierra del Fuego [(PRV) Argentina] 2 Ushuaia Bay 2 continental margin 2 emplacement 2