Figure F3. Variations in rare earth element patterns in the Bonin fore arc following subduction initiation. Note the recently discovered MORB-like patterns of the first volcanic products, the fore-arc basalt, and the contrast with the later U-shaped boninite patterns. Expedition 352 research will obtain complete information on gradations within and between these units. Data from Ishizuka et al. (2006, 2011).
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