Cenozoic tectonic evolution of the Alto Tunuyán foreland basin above the transition zone between the flat and normal subduction segment (33°30′–34°S), western Argentina

Comment on “The West Andean Thrust, the San Ramón Fault, and the seismic hazard for Santiago, Chile” by Rolando Armijo et al.

“…This is in agreement with the dominant vergence of Andean structures and the well-established eastward propagation of deformation [James, 1971;Allmendinger et al, 1983Allmendinger et al, , 1990Jordan et al, 1983Jordan et al, , 1993Ramos 1988Ramos , 2009Mpodozis and Ramos, 1989;Kley et al, 1999;Cristallini and Ramos, 2000;Giambiagi et al, 2001Giambiagi et al, , 2003Coutand et al, 2001;ANCORP Working Group, 2003;Ramos et al, 2004;Kay et al, 2005;Oncken et al, 2006].…”

Chronologic implications of new Miocene mammals from the Cura-Mallín and Trapa Trapa formations, Laguna del Laja area, south central Chile

“…inversion of the basin at that time. The TTF has no known lithostratigraphic equivalents in the Main Range between 32°30 0 and 36°S, but it may correlate to syntectonic deposits in the foreland basin of Alto Tunuyán -western Argentina (Palomares, Papal, and La Pilona formations) (Giambiagi et al, 2001;Giambiagi and Ramos, 2002). Ongoing refinement of the geochronology of the Cura-Mallín and Trapa Trapa formations promises to clarify correlations to similar units elsewhere in the Main Range and permit discrimination between competing models of basin tectonics.…”

Fission track thermochronology of Neogene plutons in the Principal Andean Cordillera of central Chile (33-35°S): Implications for tectonic evolution and porphyry Cu-Mo mineralization

“…Basin inversion and significant tectonic uplift of the Principal Andean Cordillera took place as a result of the Neogene compressive tectonism Sillitoe and Perelló (2005) with fold and thrust belt and synorogenic deposits from Ramos et al (1996) and faults in Chile from Farías et al (2008); the projection of the axis of the Juan Fernández Ridge after Gilbert et al (2006). (Godoy et al, 1999;Charrier et al, 2002Charrier et al, , 2005, but also the synchronous development of a foreland basin system farther east in Argentina (Giambiagi et al, 2001). A number of Miocene granodioritic to dioritic plutons are scattered throughout the Cordillera at these latitudes (e.g., Kurtz et al, 1997); some of them are composite intrusions and locally display sill geometry within the Oligocene-Miocene volcanic succession.…”