Petrogenesis of Middle Silurian Shandan diorites in North Qilian Orogenic Belt, NW China: Insights into post-collisional slab breakoff - Chen, Gang; Li, Dechao; Liu, Xijun; Liu, Pengde; Bai, Zhihan; Liu, Xiao; Hu, Rongguo; Tian, Hao; Liu, Yande; Huang, Wenmin; Xiao, Yao (Frontiers in Earth Science, 2025)