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Articles | Volume 17, issue 2
Articles | Volume 17, issue 2
https://doi.org/10.5194/se-17-203-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/se-17-203-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 17, issue 2
Research article
 | 
04 Feb 2026
Research article |  | 04 Feb 2026

Petrogenesis and tectonic setting of late Paleoproterozoic diorites in the Trans-North China Orogen

Zhiyi Wang, Jun He, Wolfgang Siebel, Shuhao Tang, Yiru Ji, Jianfeng He, and Fukun Chen

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Short summary
Our study investigates ca. 1.78 Ga Jiguanshan diorite in the North China Craton. We found that Paleoproterozoic diorites across the craton share similar compositions and formed from melted deep crust, differing from volcanic and mafic rocks of the same age. Geochemical analysis reveals these diorites formed during crustal stretching, marking a tectonic shift from orogenic-related to within-plate settings. This provides key evidence for understanding how tectonic setting evolved after collisions.
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