Alzamiento de los Andes Centrales de Argentina entre 29° y 33° S a partir del análisis topográfico

NÓBILE, J., DÁVILA, F.M.,

Congreso; XX Congreso Geológico Argentino; 2017

The Central Andes topography has been explained mainly as a result of crustal shorteningbecause of the ongoing subduction along the Peru?Chile Trench. In the segment between 30 °and 35 ° SL, recent studies (Hoke et al. 2014) found inconsistencies between cortical thickeningand uplift, which were associated with non-tectonic processes, likely occurred in the mantle. Inthis contribution, we quantify the rates of uplift analyzing longitudinal rivers profiles across thisAndean foreland area in order to test the non-tectonic hypothesis in the construction of themodern relief of the Andes. We modeled the uplift rate history (U (t)) using an inverse algorithm(Pritchard et al. 2009, Roberts and White 2010). Our result shows that the amounts of upliftincrease from north to south similar to the Hoke et al. (2014) results.