Reporter：李文帅
  
Time：2023年4月2日（星期二）15:00
  
Place：钟健报告厅（系楼218）
  
Description：
  

Postdoctoral fellow at the University of Tokyo, selected as Humboldt Scholar and JSPS Researcher. I graduated with a bachelor's degree from China University of Petroleum (East China) in 2015 and from the University of North Carolina at Chapel Hill in the United States in 2021. Focusing on stable isotope research of metals, we have achieved a series of achievements in the following areas: 1 The fractionation patterns and mechanisms of lithium and potassium isotopes in silicate chemical weathering were elucidated, and the spatiotemporal evolution of potassium cycling in key terrestrial zone systems under weathering was measured using the Hawaiian Islands as an example; 2. Clarified the marine potassium cycle regulated by anti weathering and its correlation with biological factors in sedimentary environments, and provided a solution for evaluating potassium isotope values in seawater to achieve paleoenvironmental reconstruction; 3. A redox co cycle model of cerium and manganese in the epigenetic environment was constructed to further verify the transformation of the upper crust by oxidative weathering to constrain the initiation time of local/global oxidation events. Currently, 20 first/corresponding author papers have been published, including 4 in EPSL and 7 in GCA. This report will introduce new advances in the application of synchrotron radiation and stable isotopes of potassium and cerium in chemical weathering and anti weathering research, and further discuss the element cycling driven by chemical weathering/anti weathering and its interaction with the biosphere