Water in the deep Earth

地球深处的水

• 批准号: DP140100622
• 负责人: Prof Trevor Ireland
• 金额: $ 17.48万
• 依托单位: The Australian National University
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2014
• 资助国家: 澳大利亚
• 起止时间: 2014-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP140100622
• 关键词: Water; deep; Earth

Water has profound influence on many deep Earth processes ranging from melting to plate movements. Water in deep Earth is replenished by subduction. A significant part of water can be stored in nominally anhydrous minerals, such as olivine, pyroxene and garnet that result from the breakdown of hydrous phases within the subducted lithosphere. The project proposes a combined experimental and analytical project to determine how much water is transported to the deeper mantle in these minerals. This project aims to determine the incorporation mechanisms of water into these key minerals and to establish an Australian facility for water determination in minerals that has the sensitivity needed for studying deep Earth materials.

水对地球深部的许多过程都有深远的影响，从熔融到板块运动。地球深部的水是通过俯冲作用补充的。相当一部分水可以储存在名义上无水的矿物中，如橄榄石、辉石和石榴石，它们是俯冲岩石圈内含水相分解的结果。该项目提出了一个实验和分析相结合的项目，以确定有多少水在这些矿物中被输送到更深的地幔。该项目的目的是确定这些关键矿物中水的结合机制，并建立一个澳大利亚的矿物中水测定设施，该设施具有研究地球深部物质所需的灵敏度。