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Timestamp: July 4, 2026 at 02:41 PM

China Unveils World’s First AI Large Model for Stratigraphy, Building a Shared Database for Earth’s History

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At the 5th International Stratigraphy Conference, Chinese scientists launched the first stratigraphy-focused AI large model and a smart global stratigraphic section comparison system, creating a unified digital archive of Earth’s 4.6-billion-year evolution.

Chinese scientists have released the world’s first large language model dedicated to stratigraphy, alongside a suite of intelligent tools for global stratigraphic section comparison, marking a milestone in efforts to build a shared, time-calibrated database of Earth’s entire history. The announcement was made on July 3, 2025 during the 5th International Stratigraphy Conference, which for the first time moved outside Europe and was held in Kunshan, Jiangsu province.

The new AI model and its associated platform aim to organize all geological records of the planet’s 4.6-billion-year evolution along a unified timeline. “We hope to sort every geological record of Earth’s 4.6-billion-year history according to a common time standard, through a timeline and global big data approach,” said Shen Shuzhong, academician of the Chinese Academy of Sciences and Vice President of the International Commission on Stratigraphy.

Stratigraphy is fundamental to understanding Earth’s past—shedding light on the origins of life, the distribution of resources, and long-term climate shifts. By encoding vast amounts of stratigraphic data into an AI framework, researchers can accelerate correlations between rock layers across continents, refine geological time scales, and provide a more accessible reference for scientists worldwide.

China holds a strong position in this field, having identified 11 Global Boundary Stratotype Sections and Points (GSSPs)—known as “golden spikes”—which serve as international standards for defining geological time boundaries. These discoveries have given China a leading role in calibrating Earth’s evolutionary timeline.

The 5th International Stratigraphy Conference, which ran from June 29 to July 3, was hosted by the International Commission on Stratigraphy and organized by Nanjing University, with partners including the Nanjing Institute of Geology and Palaeontology, China University of Geosciences (Wuhan), and the Suzhou Deep-time Digital Earth Research Center. The event gathered over 700 experts from 33 countries. Its relocation to Asia underscores the global recognition of China’s contributions to the geosciences and the growing demand for open digital infrastructure in Earth system science.

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This is a major leap for geoscience. By applying large language models to stratigraphy, Chinese researchers have essentially given Earth scientists a unified, machine-readable language to decode 4.6 billion years of planetary history. The smart global comparison system is the real breakthrough—it will let geologists correlate rock layers across continents at a speed and scale that manual methods could never achieve. Done right, this shared database could democratize access to stratigraphic data, enabling better predictions for resource exploration and climate reconstruction. I’m particularly impressed that they’ve focused on interoperability rather than hoarding the data. That’s how you build a foundation for the next generation of Earth science.

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Digitizing 4.6 billion years of geological data is a monumental task, and tackling it with an AI large model demonstrates how machine learning can revolutionize hard sciences. By creating a shared database, researchers can compare stratigraphic sections across the globe with unprecedented speed and accuracy. This innovation bridges the gap between complex deep-time data and actionable scientific insights, offering a powerful new tool for understanding Earth's evolution.