China Adds Three Geological Sites to International Heritage List, Bringing Total to 13

China Adds Three Geological Sites to International Heritage List, Bringing Total to 13

China has added three geological locations to the International Union of Geological Sciences (IUGS) list of geological heritage sites, bringing the country's total to 13 and highlighting the international scientific significance of its dinosaur fossil discoveries, active fault systems and ancient geological formations.

The newly recognised locations are the Middle Jurassic dinosaur fossil site in Yunyang, Chongqing Municipality; the Xianshuihe Fault in Sichuan Province; and the Triassic Dabie ultrahigh-pressure metamorphic belt in Anhui Province.

The announcement was reported by Xinhua on Saturday. The IUGS list recognises geological locations considered internationally important because they preserve evidence of significant geological processes, formations or stages in Earth's history.

The Yunyang dinosaur fossil site is notable for discoveries spanning the Middle Jurassic period. According to the IUGS information cited by Xinhua, the area has produced fossils representing 19 families, 12 orders and six classes, including remains from 11 dinosaur species.

The site also contains what has been described as the world's largest in-situ Jurassic fossil wall. Its geological layers provide researchers with an opportunity to study dinosaur evolution during a period for which fossil evidence has historically been less complete than for some other stages of the Mesozoic Era.

The Middle Jurassic period, approximately 174 million to 161 million years ago, was an important stage in the evolution and diversification of dinosaurs. Fossil discoveries from this period can help scientists understand how different groups developed and how ancient ecosystems changed over time.

The second location, the Xianshuihe Fault in Sichuan, is recognised for its importance in the study of active tectonic processes and earthquake hazards. Situated along the eastern margin of the Qinghai-Tibet Plateau, the fault is among the world's most active intracontinental fault systems.

According to the International Union of Geological Sciences, geological heritage sites are selected for their exceptional scientific importance and their ability to preserve evidence of significant geological features or processes.

The Xianshuihe Fault provides researchers with a natural laboratory for studying continental deformation, fault movement and seismic activity. Its geological features can help scientists examine how stress accumulates and is released within the Earth's crust, improving understanding of earthquake processes.

The location is particularly relevant to China because Sichuan and neighbouring areas have experienced destructive earthquakes. Research into active fault systems can contribute to geological hazard assessment and the development of more effective disaster-prevention strategies.

The third site, the Triassic Dabie ultrahigh-pressure metamorphic belt in Anhui Province, is significant for research into deep geological processes. The Dabie Mountains contain rocks that were subjected to extremely high pressures during ancient tectonic activity before being brought closer to the Earth's surface.

These formations provide evidence of the processes involved in the movement of tectonic plates, including subduction and the return of deeply buried rocks toward the surface. They also offer researchers opportunities to investigate interactions between rocks and fluids under extreme geological conditions.

The addition of the three locations brings China's total number of sites on the IUGS geological heritage list to 13. The list has been announced in several batches since 2022 and includes locations from different geological categories around the world.

China's geological diversity has made it an important destination for research into fossils, tectonic activity, mineral resources and the evolution of landscapes. The latest additions cover three distinct areas of scientific interest: palaeontology, structural geology and metamorphic geology.

The recognition may also provide opportunities for local education and geological tourism. Areas with internationally recognised geological features can attract researchers, university students and visitors interested in natural history.

However, the designation also highlights the importance of protecting scientifically valuable sites. Fossil locations and geological formations can be damaged by uncontrolled excavation, construction, mining or tourism activities. Effective management is therefore necessary to preserve their scientific value for future generations.

For local authorities, the challenge will be to balance public access and tourism development with conservation and research requirements. Scientific institutions may also use the recognition to strengthen international research cooperation and educational programmes.

The IUGS designation does not automatically confer UNESCO World Heritage status, and the three locations should not be described as newly added UNESCO World Heritage Sites. Rather, the recognition places them on an international scientific list focused specifically on geological heritage.

The announcement nevertheless represents an important milestone for China's geological research community and reinforces the country's contribution to the global study of Earth's history.