Geosphere; February 2008; v. 4; no. 1;
p. 1-35; DOI: 10.1130/GES00122.1
© Geological Society of America
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Figure 5. Compositional variation diagrams for whole-rock samples of Eocene ash-flow tuffs of northeastern Nevada. Data are from this study (Table 2) and Mueller (1992), Brooks et al. (1995a, 1995b), and Wallace (2003a). Major elements normalized to 100% volatile-free. (A) SiO2/Na2O+K2O. (B) SiO2/TiO2. (C) SiO2/P2O5. (D) Zr/Nb. (E) Zr/TiO2.
Copyright © 2008 by Geological Society of America