Hidden geochemical treasure: apatite inclusions in zircon

隐藏的地球化学宝藏：锆石中的磷灰石包裹体

• 批准号: DP190103849
• 负责人: Prof Peter Kinny
• 金额: $ 28.67万
• 依托单位: Curtin University
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2019
• 资助国家: 澳大利亚
• 起止时间: 2019-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP190103849
• 关键词: Hidden; geochemical; treasure; apatite; inclusions

This project aims to undertake high precision measurements of the isotopic composition of tiny apatite inclusions in the mineral zircon. This project will create a new isotopic data set to combine with age and isotope data for the host zircons in order to study the formation and evolution of the Earth's crust. Primary apatite inclusions represent a previously untapped treasury of pristine geochemical information made accessible by the latest advances in micro-analytical and imaging technology. This information will be used to test models for the timing of formation of the first continents, to map continental growth over time, and to evaluate the origins of the Earth's oldest rocks and minerals and the environmental conditions on the early Earth.

该项目旨在对矿物锆石中微小磷灰石包裹体的同位素组成进行高精度测量。该项目将创建一个新的同位素数据集，结合寄主锆石的年龄和同位素数据，以研究地壳的形成和演化。原生磷灰石包裹体代表了一个以前未开发的原始地球化学信息宝库，通过最新的显微分析和成像技术可以访问。这些信息将用于测试第一批大陆形成时间的模型，绘制大陆随时间的增长图，并评估地球上最古老的岩石和矿物的起源以及早期地球的环境条件。