“…It is, however, noteworthy that the retrograde replacement of kyanite by sillimanite, widely observed in the metasedimentary high‐pressure Andrelândia Nappe rocks (Campos Neto et al, 2010; Cioffi et al, 2012; da Motta & Moraes, 2017; Reno et al, 2012; Trouw et al, 2013), is absent in all studied high‐pressure granulites from the Passos Nappe and other nappes to the north. The widespread occurrence of late sillimanite in the Andrelândia Nappe System could be explained, at least in part, by the partial superposition of Ribeira Orogen metamorphism on the system (Carvalho et al, 2020; Coelho et al, 2017; Trouw et al, 2013), or just by the following decompression, without the effect of this tectonic superposition (Campos Neto et al, 2010; Cioffi et al, 2012; da Motta & Moraes, 2017). Exhumation of the Passos Nappe may have occurred at slightly higher pressure than the Andrelândia Nappe System, with rocks decompressing and cooling entirely within the kyanite field.…”