Miocene 6 crustal thinning sedimentation 6 volcanism 6 Basaltic volcanism 4 Holocene 4 Neogene 4 Payenia 4 Payún Matrú 4 Pliocene 4 Retroarc 4 Trachytes 4 basalt 4 orogeny 4 sedimentary basin 4 Andes 2 Convergent systems 2 Extensional deformation 2 Extensional tectonics 2 Geochemistry 2 Geochronology 2 Lead 2 Mechanical coupling 2 Oligocene 2 Patagonia 2 Petrography 2 Sedimentology 2 Southern south america 2 Structural geology 2 Submarine volcanism 2