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Fig. 1

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Observations of Be vs. Fe (left) and vs. O (right). In all panels, dotted lines indicate slopes of 1 (primary) and 2 (secondary). Data are from Primas (2010, circles), Tan et al. (2009, asterisks), Smiljanic et al. (2009, open squares), and Boesgaard et al. (2011, dots).

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