Geochronology and Tectonic Evolution of the Yangtze Craton

The Yangtze Craton constitutes one of the principal Precambrian blocks in East Asia, with an evolutionary record extending back to the Mesoarchean. Geochronological studies have harnessed U–Pb zircon dating, Hf isotopes and detrital zircon provenance analysis to decipher its three-dimensional growth, metamorphic history and subsequent reworking. Early research identified tonalite–trondhjemite–granodiorite complexes at ca. 3.0–2.8 Ga, signalling the assembly of an ancient continental nucleus. Paleoproterozoic to Mesoproterozoic records reveal sedimentation and magmatism linked to supercontinent assembly and breakup, while Neoproterozoic data highlight prolonged subduction, orogenic collapse and rifting associated with Rodinia fragmentation. Investigations of crustal thickness variations attest to alternating cycles of thickening and thinning along craton margins, driven by arc accretion and slab rollback. Subsequent post-collisional extension and basin development shaped the present-day craton architecture. Integration of zircon geochronology with trace-element and isotope geochemistry has thus yielded a coherent model of the Yangtze Craton’s protracted evolution, from Archean nucleus through supercontinent cycles to Phanerozoic stability.

Research from Nature Portfolio

Innovative detrital zircon studies have refined crustal evolution during the Neoproterozoic, employing in-situ U–Pb dating and trace-element ratios to chart crustal thickness variations from 1000 Ma to 539 Ma along the northwestern margin. Results indicate sustained subduction until 730 Ma, followed by intracontinental extension and episodic collisions with microcontinents that modulated crustal assembly. Investigations of Neoproterozoic rift-related granites recovered at ~814 Ma reveal highly fractionated I-type magmatism generated by melting of mixed ancient and juvenile crust in an extensional setting, marking two principal rift phases between 830 Ma and 635 Ma. Studies of Western Yangtze migmatites demonstrate rapid endogenic recycling within magmatic arcs, reconstructing a full rock cycle—from arc magmatism through surface weathering to deep burial and remelting—within ~10 Myr, emphasising thrust-fault–driven crustal differentiation.

Geochronology and Tectonic Evolution of the Yangtze Craton publication trend

The graph below shows the total number of articles in geochronology and tectonic evolution of the yangtze craton across all publications each year (not limited to Nature Index journals).

Technical terms

Craton: A stable, ancient part of the continental lithosphere.

U–Pb dating: Radiometric method using uranium and lead isotopes to determine zircon ages.

Detrital zircon: Zircon grains eroded from source rocks, used for provenance and age analysis.

Hf isotopes: Hafnium isotopic ratios in zircon that trace crustal evolution and magma sources.

Fission-track dating: Thermochronological technique based on damage trails in minerals from nuclear fission of uranium.

Subduction: Process by which one tectonic plate sinks beneath another into the mantle.

Rifting: Extension of the crust leading to the formation of rift basins and potential continental breakup.

References

1. Geochronology and Geochemistry of Archean TTG and Tremolite Schist Xenoliths in Yemadong Complex: Evidence for ≥3.0 Ga Archean Continental Crust in Kongling High-Grade Metamorphic Terrane, Yangtze Craton, China. Minerals (2019).
2. Precambrian Basement and Late Paleoproterozoic to Mesoproterozoic Tectonic Evolution of the SW Yangtze Block, South China: Constraints from Zircon U–Pb Dating and Hf Isotopes. Minerals (2018).
3. Using detrital zircon to reconstruct Neoproterozoic crustal thickness variation in the northwestern margin of the Yangtze Block. Scientific Reports (2025).
4. Neoproterozoic rifting in the Upper Yangtze Continental Block: Constraints from granites in the Well W117 borehole, South China. Scientific Reports (2017).
5. Rapid endogenic rock recycling in magmatic arcs. Nature Communications (2021).
6. Multiple-Stage Neoproterozoic Magmatism Recorded in the Zhangbaling Uplift of the Northeastern Yangtze Block: Evidence from Zircon Ages and Geochemistry. Minerals (2023).
7. Zircon U-Pb and Fission-Track Chronology of the Kaiyang Phosphate Deposit in the Yangtze Block: Implications for the Rodinia Supercontinent Splitting and Subsequent Thermal Events. Minerals (2024).