RPG: Ion Microprobe Investigation of Trace Element Mobility During Subduction Zone Metamorphism

9405404 Bebout该奖项将支持对俯冲带变质作用期间微量元素流动性的详细离子探针研究。 这项研究将提供有关各种微量元素（B，Be，Li，Cs，Rb，Sr，Ba，Ce，U，Zr，Nb，Y）在加州州卡塔利纳片岩矿物之间分配的基本观测结果，该研究涵盖了广泛的P-T条件（300- 750 oC，5-11 KB）。 了解俯冲岩石成分变化的幅度和机制对于揭示弧火山岩中复杂的、分馏的微量元素特征是至关重要的。

9405404 Bebout This award will support a detailed ion microprobe study of trace element mobility during subduction zone metamorphism. The research will provide fundamental observations regarding the partitioning of various trace elements (B, Be, Li, Cs, Rb, Sr, Ba, Ce, U, Zr, Nb, Y) among minerals in the Catalina Schist, California, which spans a wide range of P-T conditions (300-750oC, 5-11 Kb). An understanding of the magnitude and mechanisms of compositional modification of subducted rocks is essential to unraveling the complex, fractionated trace element signatures in arc volcanic rocks.