The Miocene magmatism in the Malargüe and Chos Malal fold and thrust belts

LITVAK, VANESA D.; FERNÁNDEZ PAZ, LUCÍA; IANNELLI, SOFÍA B.; POMA, STELLA; FOLGUERA, ANDRÉS

Andean Tectonics

Elsevier

Lugar: Ámsterdam; Año: 2019;

Variable geodynamic contexts have been registered throughout the Cenozoic in the southern Centraland North Patagonian Andes. Significantly, these geodynamic changes have controlled the developmentof arc-related volcanism, as seen in the intensity, volume, extent, location and, primarily, in thegeochemical signature of the resulting arc volcanic products (e.g., Fernández Paz et al., 2017; Iannelliet al., 2017; Jones et al., 2016; Kay and Mpodozis, 2002; Kay et al., 1991, 1999, 2006a; Litvak et al.,2018). Major controls on magmatism are related to the compressive vs. extensional tectonic regimesaffecting the Andean margin and associated parameters such as changes in subduction zone geometry,variable convergence rate and direction, collision of seismic and aseismic ridges, and so on (e.g.,Folguera et al., 2011; Horton, 2018; Ramos, 2010a; Thorkelson, 1996).