Chemical enrichment models of the MW as described by Magrini et al. (2009) illustrating the relative abundances of key elements in comparison to iron (Fe) across various Galactocentric radii (R). The elements, arranged sequentially by atomic number relative to Fe, include [O/Fe] at the top panel, followed by [Mg/Fe], [Si/Fe], [Ca/Fe], and culminating with [Fe/H] on the bottom panel. The colour gradation, ranging from a lively orange to black, represents the ages of the Universe at the time of star formation within the MW, starting at t = 2.1 Gyr and extending to t = 13.7 Gyr. This visual spectrum effectively portrays the chronological progression of the Galaxy’s chemical composition. The legend, for clearer visualisation, is incorporated within the [Ca/Fe] subplot.