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Fig. 8.


[Mg/Fe]–[Fe/H] diagrams for HR 1614 (left) and Hercules (right) selected from the APOGEE (top) and GALAH (bottom) surveys are shown as red dots. The corresponding uncertainties are shown as error bars for APOGEE distributions and a typical (mean) error is shown for GALAH stars. Background black distributions show stars from APOGEE and GALAH in region 00.

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