Discovery of the oldest (ca. 2.87 Ga) granitic gneisses in the Qinling-Dabie Orogenic Belt: Direct evidence of Mesoarchean crust

CRediT authorship contribution statement

Kai Wang and Tian-yu Zhao conceived the original idea. Kai Wang carried out the experiment and wrote the manuscript. Shuan-Hong Zhang verified the analytical methods and supervised the findings of this work. All authors discussed the results and contributed to the final manuscript.

Declaration of competing interest

The authors declare no conflicts of interest.

Fund support

Supported by the National Natural Science Foundation of China (42002246, 42002244, and 41725011), the Fundamental Research Funds of the Chinese Academy of Geological Sciences (DZLXJK202202), China Postdoctoral Scientific Foundation (2019M660740 and 2021T140628), and project of the China Geological Survey (DD20221644).

Supplementary dataset

Supplementary data (Supplementary Table S1) to this article can be found online at doi: 10.31035/cg2022084.

References

[1] Wang K, Dong SW, Yao WH, Zhao TY. 2020. Nature and Evolution of Pre-Neoproterozoic Continental Crust in South China: A Review and Tectonic Implications. Acta Geologica Sinica (English Edition), 94(6), 1731-1756. doi: 10.1111/1755-6724.14601.

[2] Wang X, Ma CQ, Deng JL, Wu H. 2020. Discovery of ∼2.5Ga amphibolite at Liuping Town of Susong County in the mid-eastern region of the Yangtze Block. Geology in China, 47, 1262-1263.

[3] Wu YB, Zheng YF, Gao S, Jiao WF, Liu YS. 2008. Zircon U-Pb age and trace element evidence for Paleoproterozoic granulite-facies metamorphism and Archean crustal rocks in the Dabie Orogen. Lithos, 101, 308-322. doi: 10.1016/j.lithos.2007.07.008.