Economic Geology; January 2005; v. 100; no. 1;
p. 43-61; DOI: 10.2113/100.1.0043
© Society of Economic Geologists
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FIG. 10. Hf vs. Zr concentrations for the rocks from the southern Roby,
Twilight, and High-Grade zones. Note the well displayed correlation suggesting a
cogenetic origin of all rock types. See legend in Figure 9. Correlation
coefficient (r) is shown in the lower right and error bars in 2
are given in the upper left of the diagram.
Copyright © 2008 by Society of Economic Geologists