“…The interaction between these blocks at 2.1–2.0 Ga in addition to the Gabonese Block of the Congo Craton, resulted in a large Palaeoproterozoic orogenic system associated with the formation of the Columbia supercontinent (Barbosa & Sabaté, 2004; Ledru et al, 1994; Oliveira et al, 2004; Rogers & Santosh, 2009). This ancient orogen, well preserved in NE Brazil and Central‐West Africa, comprises a diversity of high‐grade metamorphic rocks, including HT eclogite facies rocks (e.g., Loose & Schenk, 2018; Weber et al, 2016), and silica‐undersaturated sapphirine–spinel‐bearing (e.g., Leite et al, 2009; Rodrigues et al, 2020) and spinel–quartz‐bearing (Barbosa et al, 2006) UHT granulite facies rocks. In NE Brazil, the timing of continental collision and related UHT metamorphism was constrained to between 2.08 and 2.05 Ga (Barbosa et al, 2006, 2017; Leite et al, 2009).…”