Tectonic evolution of the northern Austral-Magallanes basin in the Southern Patagonian Andes from provenance analysis
- Barberon, Vanesa
- Ronda, Gonzalo
- Aramendía, Inés
- Suárez, Rodrigo Javier
- Ramos, Miguel Esteban
- Naipauer, Maximiliano
- Sue, Christian
- Ghiglione, Matias
DOIAbstract
We studied the northern tip of the Austral-Magallanes basin in the Southern Patagonian Andes, between the Buenos Aires Lake and the Mayer River at 46°35′ SL and 48°35′ SL, respectively. Proposed objectives were: i) to differentiate Mesozoic-Cenozoic tectonostratigraphic units and, ii) to characterize the different deformational events that took place in the area linked to a variable regional geodynamic context. Sandstones provenance analysis was performed on the Aptian - Albian compressive retroarc deposits and Cenozoic foreland deposits. Studied samples were classified using tectonic discrimination diagrams which show: i) for Cretaceous rocks a dominant sediment source from a recycled orogen and, to a lesser extent, a dissected to transiti...
Add to ORKG