CSEDI: Collaborative Research of the 190 Pt - 186Os System as a Test of Core-Mantle Interaction

CSEDI：190 Pt - 186Os 系统的合作研究作为核幔相互作用的测试

• 批准号: 9628879
• 负责人: John Morgan
• 金额: $ 5.5万
• 依托单位: Colorado State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-07-15 至 1997-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9628879&HistoricalAwards=false
• 关键词: CSEDI; Collaborative; Research; 190; Pt

9628879 Morgan The PIs propose to test core-mantle exchange in the Earth using the Pt-Os isotope system to study rocks which are believed to have been brought to the Earth's surface in mantle-derived plumes. If succesful, 1860s anomalies in plume-derived materials may provide the only direct test of core-mantle interaction. The proposed study of Os and Pt isotopic systematics will be made on an array of mantle-derived rocks as well as on mantle and crustal rocks that may be recycled into the mantle, to determine if excess Os in plume-derived materials can be used as a test of core-mantle interaction. ***

小行星9628879 PI建议使用Pt-Os同位素系统来测试地球的核幔交换，以研究被认为是在幔源羽流中被带到地球表面的岩石。 如果成功的话，19世纪60年代地幔柱物质的异常可能是核幔相互作用的唯一直接测试。 Os和Pt同位素系统学的研究将在一系列幔源岩石以及地幔和地壳岩石上进行，这些岩石可能会再循环到地幔中，以确定地幔柱源物质中的过量Os是否可以用作核幔相互作用的测试。 ***