Cerium isotope geochemistry of ocean island basalts

Abstract The source of ocean island basalts is one of geology's major problems, and many different models have been proposed. One of these involves recycling of continental and oceanic crustal material into the mantle source of ocean island basalt magmas1,2. Island arc basalts are an important link in the chain of evidence that supports this model, as they display isotope signatures in common with both ocean-floor sediment2,4 and ocean island …