P-wave Argentina 6 S-wave 6 seismic velocity 6 Olivine 4 P waves 4 Tectonics 4 crustal thickness 4 lithology 4 mafic rock 4 numerical model 4 olivine 4 petrology 4 seismic survey 4 slab 4 Annealing 2 Basement 2 Birefringence 2 Blocking temperature 2 Continental crust 2 Crystal preferred orientations 2 Crystallographic preferred orientations 2 Deformation 2 Electron back-scattered diffraction 2 Flat slab subduction 2 Force balances 2 Geophysics 2 Gobernador Gregores 2 Interpretation 2 Kinetics 2