... environments

Table 1 is only available in electronic form at http://www.edpsciences.org

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... Fe

Although we use the term overabundance, in fact Trager et al. (2000b) have shown that the differences are more likely due to a depression of Fe with respect to the solar values than to an enhancement of the light elements.

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...$\alpha$-enhanced

The so- called $\alpha$-elements: O, Ne, Mg, Si, S, Ar, Ca, and Ti, are particles built up with $\alpha$-particle nuclei.

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