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E. Bruce Watson was awarded the Walter H. Bucher Medal at the AGU Fall Meeting honors ceremony, which was held on 13 December 2006 in San Francisco, Calif. The medal recognizes original contributions to the basic knowledge of crust and lithosphere.

It is with great pleasure that I introduce Bruce Watson as this year's recipient of the Walter H. Bucher Medal. This honor comes at an opportune moment, as 2006 represents the thirtieth anniversary of Bruce's first publications on the role of silicate melt structure in trace element partitioning. As always, Bruce's approach to the problem was original, in this case investigating mineral-melt partitioning by simply eliminating the mineral, and instead focusing the distribution of trace elements between immiscible melts. In 2006, a conceptually identical paper appeared in the pages of Science. This affords a quantification not often observed at awards ceremonies: Exactly how far ahead of his time was Bruce Watson? The answer is, 30±1 years.