Thallium isotopes: a novel geochemical tracer to map recycling in Earth's mantle

铊同位素：一种新型地球化学示踪剂，用于绘制地幔回收图

• 批准号: DP0665038
• 负责人: Mr Sune Nielsen
• 金额: --
• 依托单位: Macquarie University
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2006
• 资助国家: 澳大利亚
• 起止时间: 2006-01-01 至 2010-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP0665038
• 关键词: Thallium; isotopes; novel; geochemical; tracer

This project will transfer to Australia an advanced new methodology: the characterisation of thallium isotopic signatures in the mantle system introduced during recycling of crustal material. This will allow the tracking of fluid processes in the mantle system in a completely new way and will provide significant new information about the fluids that can percolate up from subduction zones. The source of most economically interesting elements in the crust is from mantle-derived fluids, so their characterisation is critical to an understanding of the whole ore-forming process. Hence, this study will provide unique new information to apply to this important large-scale Earth problem.

该项目将向澳大利亚转让一种先进的新方法：在地壳物质再循环过程中引入的地幔系统中铊同位素特征的表征。 这将允许以一种全新的方式跟踪地幔系统中的流体过程，并将提供有关可以从俯冲带渗透的流体的重要新信息。 地壳中最具经济价值的元素来源于幔源流体，因此它们的特征对于理解整个成矿过程至关重要。因此，这项研究将提供独特的新信息，适用于这一重要的大规模地球问题。