pluton Argentina 16 emplacement 12 Andes 8 Cretaceous 8 geochemistry 8 tectonic setting 8 Fuegian Andes 6 deformation 6 granitoid 6 Antofagasta 4 Calama 4 Cambrian 4 Central Andes 4 Chile 4 Deformation 4 Eocene 4 Gondwana 4 Granitoids 4 Internal structure 4 Patagonia 4 Pluton emplacement 4 Rear-arc magmatism 4 Regional tectonics 4 Sierras Pampeanas 4 South America 4 Structural geology 4 batholith 4 geochronology 4 magma 4