Earth Sciences Postdoctoral Research Fellowship Award

地球科学博士后研究奖学金

• 批准号: 9302694
• 负责人: John Chesley
• 金额: $ 7.05万
• 依托单位: Fellowships
• 依托单位国家: 美国
• 项目类别: Fellowship Award
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-04-01 至 1995-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9302694&HistoricalAwards=false
• 关键词: Earth; Sciences; Postdoctoral; Research; Fellowship

This project will: (a) Investigate the effects of weathering and hydrothermal circulation on Re-OS isotope systematics; (b) Test the potential for high-precision geochronology on young rocks using the Re-Os dating system; and (c) Investigate the degree of involvement of the continental crust during the formation of flood basalt. Results from this investigation should bear significantly on the use of the Re-Os isotopic system as a chronometer and offer new information for the Os isotopic composition of the mantle and crust.

该项目将： (a) 研究风化和热液循环对 Re-OS 同位素系统的影响； (b) 测试利用铼锇测年系统对年轻岩石进行高精度地质年代学的潜力； (c) 调查溢流玄武岩形成过程中大陆地壳的参与程度。 这项研究的结果对铼锇同位素系统作为计时器的使用具有重要意义，并为地幔和地壳的锇同位素组成提供新信息。