Tectonics Associated with the Late Oligocene to Early Miocene Units of the High Andes (Cura-Mallín Formation): A Review of the Geochronological, Thermochronological, and Geochemical Data
- Rosselot, Eduardo Agustín
- Hurley, María
- Sagripanti, Lucía
- Fennell, Lucas Martín
- Iannelli, Sofía
- Orts, Darío Leandro
- Encinas, Alfonso
- Litvak, Vanesa Dafne
- Folguera Telichevsky, Andres
DOIAbstract
The tectonic regime associated with the Oligo-Miocene Cura-Mallín Formationand equivalents in the Main Andean Cordillera between 35° and 40° S, theVentana and Abanico formations to the south and north, respectively, is still matter of debate. While most authors have agreed in relating them to an extensional regime that could have interrupted Andean orogenesis, others have provided evidence of coexistence with an ongoing compressional regime at least for the upper part of their record. Available geochronological, structural, geochemical, thermochronological, and basin subsidence data between 33° and 43° S are compiled and analyzed in this chapter in order to provide a tectonic framework for these rocks. Based on this analysis, two different ...
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