Professor Lu Jing from School of Earth Sciences and Surveying Engineering at China University of Mining and Technology-Beijing published a paper titled "Volcanically driven lacustrine ecosystem changes during the Carnian Pluvial Episode (Late Triassic)" in the international journal PNAS. This paper uses sedimentary mercury as a proxy indicator for volcanic activity, revealing four discrete pulses of volcanic activity during the CPE period. Each eruptive phase is associated with negative shifts in carbon isotope composition and significant environmental-climatic changes, including more humid conditions marked by an increase in hygrophytic plants, lake expansion, and eutrophication. The study suggests that eruptions in the Wrangellia Terrane large igneous province occurred in multiple discrete pulses rather than a simple single peak and decline history. It demonstrates the province's capacity to alter global carbon cycling, induce climate change, and drive biological evolution on a macroscopic scale.

School of Earth Sciences and Surveying Engineering at China University of Mining and Technology-Beijing, in collaboration with University of Birmingham and University of Leeds in the UK, China University of Geosciences (Wuhan), and the Research Institute of Petroleum Exploration and Development (China), among others, has conducted research in the Jiyuan Basin at the southern margin of the North China Craton. This research was supported by projects including the National Natural Science Foundation of China (41772161, 41472131), the National Oil and Gas Major Project (2017ZX05009-002), (2013102050020), and the Natural Environment Research Council's Biosphere Evolution, Transitions, and Resilience (NE/P0137224/1). Through the ZJ-1 drilling in the Jiyuan Basin, the team utilized zircon U-Pb dating of tuffaceous claystones in lake sediments, high-resolution carbon isotope stratigraphy, palynology, sedimentology, and other data analyses. These studies revealed the relationship between environmental changes in the Jiyuan Basin's lake system and the Wrangellia Terrane large igneous province.