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

用综合低温热年代学定量研究克拉通岩石圈显生宙的热演化和长期稳定性。地球上最古老的地壳区域(即克拉通)被认为自25亿年前形成以来一直保持着非常稳定的状态。该项目将通过将裂变径迹的低温热年代学和(U-Th)/He方法应用于三个关键克拉通，以探测和量化其他分析技术看不到的以前未知的重大冷却和剥蚀事件(即低水平不稳定性)，从而重新评估这一范式。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有价值的矿产资源，位于重要的石油盆地之下，是潜在的放射性废物长期储存库。

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.