Statistical analysis of Fa# in Fa₅₀ olivine under different shock pressures via TEM-EDS. The red, blue, and yellow boxes represent the distribution ranges (25–75%) of iron content in the core, middle layer, and rim of olivine under different shock pressures, respectively. Whiskers extending from the boxes indicate the maximum and minimum Fe content values. The diamond-shaped markers above the boxes correspond to individual Fe content data points for olivine samples at various shock pressures, whereas the black horizontal lines denote the mean Fe content. “47 GPa-γ Fe⁰” and “47 GPa-α Fe⁰” represent olivine regions where γ-phase and α-phase metallic Fe formed, respectively.