Fig. 1


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Location of mineral data used in this study: the French Alps (Marcoux, 1986) are represented by circles and the Italian Tyrol (Nimis et al., 2012) by triangles. Each colour represents a type of ore deposit. These are not the only isotope analyses carried out on alpine ores, the other analyses are indicated by black crosses (data from Höppner et al., 2005; Cattin, 2008; Giunti, 2011; Artioli et al., 2016; Pernicka et al., 2016).

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