Articles | Volume 17, issue 9
https://doi.org/10.5194/se-17-1035-2026
https://doi.org/10.5194/se-17-1035-2026
Research article
 | 
09 Sep 2026
Research article |  | 09 Sep 2026

Silurian syn- and post-collision granitic magmatism in the western section of the North Qinling Orogen: implications for collisional orogenic processes

Hao Lin, Zuochen Li, Xianzhi Pei, Shaowei Zhao, Meng Wang, Hai Zhou, Feng Gao, Mao Wang, and Li Qin

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Latest update: 10 Sep 2026
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Short summary
There is still considerable controversy over the duration of the subduction-collision orogeny process of the Wushan-Shangdan Ocean. Here, we present new geochronological and geochemical data for Silurian granites from the North Qinling Orogen. The main conclusions are as follows: (1) the ocean had closed prior to 438 Ma; (2) The transition phase from syn-collision to post-collision took place between 429 and 421 Ma; (3) A three-stage tectonic model of the Wushan-Shangdan Ocean is proposed.
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