Analysis of geomorphic indices in the southern Central Andes (23°–28°S): Evidence for pervasive Quaternary to Recent deformation in the Puna Plateau

Satellite data-based morphotectonic analyses are popular methods to identify active crustal deformation of large and partly remote regions, such as the Central Andes. For the southern Central Andes between 23° to 28°S, the mountain-front sinuosity (Smf-) index was estimated for 189 first-order mountain fronts, as well as valley shape (Vf-) ratios and basin symmetry (T-) factors for 3366 second-order, tributary drainage basins. The correlation …