Discovery of skarn mineralization and exploration implications for the Qukulekedong Au–Sb deposit, western East Kunlun, NW China - Yu Zhao; Yongmei Zhang; Xuexiang Gu; Yunhang Hu; Jianhua Han; Wei Chen; Hao Shi; Huadong Ma; Bingyu Zhu (Journal of Geochemical Exploration, 2026)