Constraining the snowball earth: timing and duration of neoproterozoic glaciations using precise Re-Os geochronology

限制雪球地球：使用精确的铼锇地质年代学确定新元古代冰川作用的时间和持续时间

• 批准号: ARC : DP0210929
• 金额: $ 20.21万
• 依托单位: The University of Adelaide
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2002
• 资助国家: 澳大利亚
• 起止时间: 2002-01-01 至 2006-12-31
• 项目状态: 已结题
• 来源: https://researchdata.edu.au/constraining-snowball-earth-os-geochronology/75046
• 关键词: Constraining; snowball; earth; timing; duration

Constraining the snowball earth: timing and duration of neoproterozoic glaciations using precise Re-Os geochronology. This project aims to investigate the onset and duration of major global glacial events during the period of Earth history when metazoan life first appeared. Understanding such processes will enable insights into both the rate and nature of evolutionary processes, and place constraints of ancient and modern climate models. This will be achieved by establishing a facility to obtain precise Re-Os isotope age data from sediments at Adelaide University (only the second such in the world), and studying sedimentary rocks preserved in the Centralian Superbasin. A basis for global stratigraphic correlation will also result from the intended program of work.

约束雪球地球：利用精确Re-Os年代学研究新元古代冰川作用的时间和持续时间。该项目旨在研究地球历史上后生动物首次出现时全球主要冰川事件的发生和持续时间。了解这些过程将使我们能够深入了解进化过程的速度和性质，并对古代和现代气候模型加以限制。为了实现这一目标，将在阿德莱德大学（Adelaide University）建立一个设施，从沉积物中获得精确的Re-Os同位素年龄数据（这是世界上第二个这样的设施），并研究保存在Centralian超级盆地中的沉积岩。预计的工作方案也将产生全球地层对比的基础。