“…Subscript N represents primitive mantle normalized (Sun & McDonough, 1989). We also plot global MORB Fe isotope data (Chen et al., 2019; Guo et al., 2023; Nebel et al., 2013; Richter et al., 2021; Sun et al., 2020; Teng et al., 2013; Weyer & Ionov, 2007) for comparison. The gray bands represent the best‐fit intervals with 95% confidence intervals.…”