Neogene Patagonian magmatism between the rupture of the Farallon plate and the Chile Ridge subduction

Thermochronological Evidence for Eocene Deformation in the Southern Patagonian Andes: Linking Orogenesis Along the Patagonian Orocline

“…Closure of the RVB commenced in middle Cretaceous time and culminated in an arc-continent collision which triggered development of the Late Cretaceous thrust belt along the Patagonian Andes (P. Betka et al, 2015;Calderón et al, 2012Calderón et al, , 2016Dalziel et al, 1974;Fildani & Hessler, 2005;Klepeis et al, 2010;Wilson, 1991); however, previous work suggests that batholith rocks have not been exhumed from depths ≥8 km by deformational processes after basin closure (Thomson et al, 2001). Arc magmatism and retroarc lithospheric shortening continued episodically during Cenozoic time (Fosdick et al, 2011;Hervé, Massonne, et al, 2007;Ramírez de Arellano et al, 2021;VanderLeest et al, 2020).…”