Uplift Sequence of the Main Morphoestructural Units of the South Central Andes at 30ºS: Insights from a Multidisciplinary Approach

LOSSADA, ANA CLARA; MARDÓNEZ, DIEGO; SURIANO, JULIETA; HOKE, GREGORY D.; FITZGERALD, PAUL G.; MAHONEY, BRIAN J.; GIAMBIAGI, LAURA; ARAGÓN EUGENIO

California

Congreso; American Geological Union meetting; 2015

American Geological Union

The South Central Andes at 30ºS represent a key area to understand the Andes goedynamicas as it corresponds to the flat slab segment, characterized by a subhorizontal subduction angle, crustal shortening is believed to be the principal mechanism responsible for the rise of the Anges. However, the sequence of uplift of the different morphoestructural units composing the orogen is not fully understood, neither do the location and time of activity of intracrustal detachments and their connection with shallower structures. We attempt to develop a multidisciplinary analysis that allow us to characterize the timing, magnitude and activity of the principal structures involved in the construction of the Andes at 30ºS trough the Coastal Range, the Frontal Cordillera and the Precordillera.