crustal shortening Argentina 18 Andes 12 fold and thrust belt 8 foreland basin 8 Andean orogeny 6 Gondwana 6 Malargue 6 Mendoza 6 Precordillera 6 Sierras Pampeanas 6 Tectonics 6 isostasy 6 shear zone 6 slab 6 structural geology 6 subduction zone 6 tectonic evolution 6 Arc magmatism 4 Deformation 4 Ductile shear zone 4 Fold-and-thrust belts 4 Jurassic deposits 4 Jurassic-Cretaceous boundary 4 Malargüe fold and thrust belt 4 Nazca plate 4 Neuquen Basin 4 Neuquén basin 4 Ordovician 4 Plates (structural components) 4