AUTHOR=Chen Gang , Li Dechao , Liu Xijun , Liu Pengde , Bai Zhihan , Liu Xiao , Hu Rongguo , Tian Hao , Liu Yande , Huang Wenmin , Xiao Yao TITLE=Petrogenesis of Middle Silurian Shandan diorites in North Qilian Orogenic Belt, NW China: Insights into post-collisional slab breakoff JOURNAL=Frontiers in Earth Science VOLUME=13 YEAR=2025 URL=https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2025.1562893 DOI=10.3389/feart.2025.1562893 ISSN=2296-6463