Testing continental growth models with calcium and strontium isotopes

用钙和锶同位素测试大陆生长模型

• 批准号: DP200103208
• 负责人: A/Prof Anthony Kemp
• 金额: $ 27.49万
• 依托单位: The University of Western Australia
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2020
• 资助国家: 澳大利亚
• 起止时间: 2020-12-04 至 2024-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP200103208
• 关键词: Testing; continental; growth; models; calcium

The Project aims to chart the evolution of the Earth’s primordial mantle and oceans between 3.75 and 2.8 billion years ago using calcium and strontium isotopes in ancient igneous and sedimentary rocks. A novel solution to the controversy over the timing and rate of growth of the Earth’s continents is expected. Anticipated outcomes include the establishment of innovative analytical tools for tracing geological and environmental processes, and stronger collaborative links with premier research institutions abroad. The significant benefits of the Project include an enhanced understanding of the environment in which early life evolved, and fresh insight into the formation of the richly mineralized nucleus of the Australian continent.

该项目旨在利用古代火成岩和沉积岩中的钙和锶同位素绘制37.5亿至28亿年前地球原始地幔和海洋的演变图。人们期待着一个新的解决方案来解决关于地球大陆生长的时间和速度的争议。预期成果包括建立追踪地质和环境过程的创新分析工具，以及加强与国外主要研究机构的合作联系。该项目的重大益处包括加深对早期生命进化环境的了解，以及对澳大利亚大陆丰富矿化核形成的新见解。