Quantifying the Phanerozoic thermal evolution and long-term stability of cratonic lithosphere using integrated low temperature thermochronology

利用综合低温热年代学量化显生宙热演化和克拉通岩石圈的长期稳定性

• 批准号: ARC : DP0210093
• 负责人: Andrew Gleadow
• 金额: $ 52.5万
• 依托单位: The University of Melbourne
• 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/quantifying-phanerozoic-thermal-temperature-thermochronology/62820
• 关键词: Quantifying; Phanerozoic; thermal; evolution; long

Quantifying the Phanerozoic thermal evolution and long-term stability of cratonic lithosphere using integrated low temperature thermochronology. The Earth's most ancient crustal regions (i.e. cratons) are thought to have remained remarkably stable since their formation >2.5 billion years ago. This project will re-evaluate this paradigm by applying low temperature thermochronology by the fission track and (U-Th)/He methods to three key cratons, to detect and quantify previously unknown episodes of significant cooling and denudation (i.e. low-level instability) which are invisible to other analytical techniques. The outcomes will open a new research avenue in these terrains, which host some of the world's most valuable mineral resources, underlie important petroleum basins and are potential long-term repositories for radioactive waste.

利用综合低温热年代学定量研究中生代岩石圈的热演化和长期稳定性。地球上最古老的地壳区域（即地壳）被认为自25亿年前形成以来一直保持着非常稳定的状态。该项目将通过对三个关键的中子应用裂变径迹和（U-Th）/He方法的低温热年代学来重新评估这一范例，以探测和量化以前未知的重大冷却和剥蚀事件（即低水平不稳定性），这是其他分析技术所看不到的。这些成果将在这些地区开辟一条新的研究途径，这些地区拥有世界上一些最宝贵的矿产资源，是重要的石油盆地的基础，也是潜在的长期放射性废物储存库。