Petrogenesis of ca. 1.95 Ga S-type granites from the Helanshan Complex in the Khondalite Belt, North China Craton and its tectonic implications - Jie-Long Shen; Xiao-Fei Xu; Guang-Shu Yang; Yong-Feng Yan; Hui Zhao; Xiao-Jun Zheng (International Geology Review, 2026)