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Economic Geology; January 2005; v. 100; no. 1; p. 7-28; DOI: 10.2113/100.1.0007
© Society of Economic Geologists
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Figure 002613


FIG. 13. {delta}18O vs. {delta}13C diagram showing the field for carbonates from the Igarapé Bahia Fe oxide Cu-Au-(U-REE) deposit (Oliveira et al., 1998; Tazava, 1999) compared to carbonates from carbonatites, freshwater limestone, marine limestone, and the Olympic Dam deposit. The data are consistent with an association with alkaline rocks. Modified after Oreskes and Einaudi (1992).





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