Figure F37. Abundance of Y and Zr/Y vs. Zr content. In the Zr-Y panel the trends for East Pacific Rise (EPR) MORB (data from J.M. Sinton, pers. comm., 1998), three Hawaiian shields, and Suiko Seamount define a fan-shaped array of lines, but the trend for lavas from Nintoku Seamount crosscuts the trends for Suiko Seamount and the Hawaiian volcanoes. The Zr/Y-Zr panel shows that lavas from Nintoku Seamount display a wider range in Zr/Y than EPR MORB and Mauna Kea shield lavas. HSDP = Hawaiian Scientific Drilling Project.
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