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

RPG：俯冲带变质作用期间微量元素迁移率的离子微探针研究

• 批准号: 9405404
• 负责人: Ann Bebout
• 金额: $ 1.77万
• 依托单位: Lafayette College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-08-01 至 1996-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9405404&HistoricalAwards=false
• 关键词: RPG; Ion; Microprobe; Investigation; Trace

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.

9405404该奖项将支持对俯冲带变质过程中痕量元素迁移性的详细离子微探针研究。这项研究将为各种微量元素(B、Be、Li、Cs、Rb、Sr、Ba、Ce、U、Zr、Nb、Y)在加州Catalina Sist的矿物中的分配提供基本观察，该矿物的P-T条件范围很广(300-750oC，5-11kb)。了解俯冲岩石成分变化的大小和机制，对于了解弧形火山岩中复杂的、分馏的微量元素特征是至关重要的。