Fig. 2

Tellurium/nickel and copper ratios through the lithosphere. a Plot of Te vs. Ni showing increase in Te/Ni up through the lithosphere with fractionation; and b plot of Te vs. Cu showing divergent behaviour in the hydrothermal environment
Tellurium/nickel and copper ratios through the lithosphere. a Plot of Te vs. Ni showing increase in Te/Ni up through the lithosphere with fractionation; and b plot of Te vs. Cu showing divergent behaviour in the hydrothermal environment