“…In the last 20 years, two episodes of magmatism during the Orosirian (2.02–1.80 Ga) were identified in the Yeongnam massif: One is the 2.02–1.96 Ga magmatism, including meta‐diorite and meta‐granites widely distributed in the north‐east, north‐central and south‐west parts (Cho et al, 2020; Kim et al, 2009, 2012, 2014; Lee et al, 2019; Oh et al, 2016). The other is the 1.88–1.85 Ga magmatism, including the anorthosite‐mangerite‐charnockite‐granite (AMCG) suite distributed in the south‐central part and amphibolite with leucogranite in the north‐east and north‐central parts (Kim & Cho, 2003; Kwon et al, 2003; Lee et al, 2017, 2018, 2020; Lee & Cho, 2020; Lee, Cho, et al, 2014, 2021; Oh et al, 2013). Among them, 1.87 Ga Okbang and Muju amphibolites were identified along the northern margin of the Yeongnam Massif recently, providing a significant clue to revealing the nature of the 1.87 Ga mantle‐derived magmatism (Figure 1b; Lee & Cho, 2020; Lee et al, 2020).…”