Articles | Volume 16, issue 1
https://doi.org/10.5194/se-16-63-2025
https://doi.org/10.5194/se-16-63-2025
Research article
 | 
23 Jan 2025
Research article |  | 23 Jan 2025

Origin of the Bohai Sea Basin, North China Craton, and implications for bidirectional back-arc extension in the East Asian continental margin

Alan Liu Chen and Xuanhua Chen

Related subject area

Subject area: Crustal structure and composition | Editorial team: Structural geology and tectonics, paleoseismology, rock physics, experimental deformation | Discipline: Structural geology
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Cited articles

Allen, M. B., Macdonald, D. I. M., Zhao, X., Vincent, S. J., and Brouet-Menzies, C.: Early Cenozoic two-phase extension and late Cenozoic thermal subsidence and inversion of the Bohai Basin, northern China, Mar. Petrol. Geol., 14, 95l–972, 1997. 
Charles, N., Augier, R., Gumiaux, C., Monié, P., Chen, Y., Faure, M., and Zhu, R. X.: Timing, duration and role of magmatism in wide rift systems: Insights from the Jiaodong Peninsula (China, East Asia), Gondwana Res., 24, 412–428, 2013. 
Chen, X. H., Wang, X. F., Zhang, Q., Chen, B. L., Chen, Z. L., Harrison, T. M., and Yin, A.: Geochronologic study on the formation and evolution of Tan–Lu fault, J. Changchun Univ. Sci. Tech., 30, 215–220, 2000 (in Chinese with English abstract). 
Chen, X. H., Dong, S. W., Shi, W., Ding, W. C., Zhang, Y. P., Li, B., Shao, Z. G., and Wang, Y.: Construction of the continental Asia in Phanerozoic: A review, Acta Geol. Sin.-Engl., 96, 26–51, https://doi.org/10.1111/1755-6724.14867, 2022. 
Chen, X. P., Li, W., Wu, Z. P., Yang, H. F., Zhang, Q., Meng, M. F., Wang, G. Z., and Jia, H. B.: The tectonic transition from rifting to strike-slip in the Liaodong Bay Depression, offshore China, Mar. Petrol. Geol., 139, 105598, https://doi.org/10.1016/j.marpetgeo.2022.105598, 2022. 
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Short summary
Based on the construction of a major fault system and investigation of several main boundaries of the Bohai Sea Basin, eastern China, we propose a right-lateral strike-slip fault between the eastern margin of the Liaodong Peninsula and the northwestern margin of the Jiaodong Peninsula. Then, we suggest that the two-direction extension perpendicular and parallel to the subduction zone should be the genesis of the Bohai Sea Basin and also the basic pattern of the back-arc extension.