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Fig. 1


Metallicity distributions [Fe/H] for different subsamples of LAMOST-DR3 K giants with R1 < R < R1 + ΔR, |z| < 5 kpc, and R2 < R < R2 + ΔR, |z| ≥ 5 kpc, respectively, such that ⟨r1⟩≈⟨r2⟩. Normalized such that ∫ d[Fe∕H]P([Fe∕H]) = 1.

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