Collaborative Research: Geochemical Imaging of Sediment Subduction and Accretion at Convergent Margins Using Cosmogenic 10Be

合作研究：使用宇宙成因 10Be 对汇聚边缘处的沉积物俯冲和增生进行地球化学成像

• 批准号: 9404052
• 负责人: Roy Middleton
• 金额: --
• 依托单位: University of Pennsylvania
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-02-01 至 1995-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9404052&HistoricalAwards=false
• 关键词: Collaborative; Research; Geochemical; Imaging; Sediment

9404052 Middleton This study will use Be and b isotopes as tracers of the Sediment input into active margin volcanism. Concentrations of 10-Be can be compared between incoming (subducted) sediment and the volcanic, and used to determine the proportions of sediment accreted, subducted and recycled. The partitioning can then be used to determine mass fluxes at margins, to be compared with estimates derived from seismic imaging.

[404052]米德尔顿本研究将使用Be和b同位素作为进入活跃边缘火山活动的沉积物的示踪剂。10-Be的浓度可以在传入（俯冲）沉积物和火山沉积物之间进行比较，并用于确定沉积物增生、俯冲和再循环的比例。然后，划分可用于确定边缘处的质量通量，并与地震成像得出的估算值进行比较。