From southern São Francisco Craton (Brazil), the Itaguara retroeclogite with so little amphibole (~20%) and plagioclase (~1%) should not be considered a garnet amphibolite (as claimed by Cutts 2020) according to IUGS/Subcommission on the Systematics of Metamorphic Rocks. The ten main assertions of Cutts (2020) are individually replied in this Discussion manuscript. The new discovery of ~2.2 Ga E-MORB signature retroeclogite in the Itaguara Sequence (Chaves and Porcher 2020), close to ~2.1 Ga peraluminous (S-type) syn-collisional Córrego do Peixoto granite generated by partial melting of the mica-quartz schist from the Itaguara accretionary prism (Chaves et al. 2019; Chaves and Coelho 2020), correspond to one of the earliest records of subduction accretion then continental collision in the world.

根据IUGS / Subsystems on Systematics，从南圣弗朗西斯科·克雷顿（巴西）南部的Itaguara反榴辉岩中，闪石（〜20％）和斜长石（〜1％）很少，因此不应被视为石榴石角闪石（如Cutts 2020所述）。变质岩。Cutts（2020）的十个主要主张在本讨论稿中分别得到了答复。〜2.2嘎E-MORB签名retroeclogite的新发现在伊塔瓜拉序列（Chaves的和PORCHER 2020），靠近2.1〜嘎过铝（S型）的顺式-collisional科雷古做由云母石英部分熔融佩肖托花岗岩来自伊塔瓜拉（Itaguara）增生棱镜的片岩（Chaves等人2019; Chaves和Coelho 2020）对应于俯冲增生然后是大陆碰撞的最早记录之一。