Figure 7.

figure 7a&b figure 7c&d
Figure 7. Log-log plots of concentrations of major- and minor-element oxides (in percent) in Tule Lake sample 986 versus those in average Medicine lake volcanics (A) and USGS standard rhyolite RGM-1 (B); and concentrations of trace elements (in parts per million) in Tule Lake sample 986 versus those in average Medicine Lake volcanics (C) and USGS standard basalt BCR-1 (D).