Genesis of potassic-ultrapotassic intrusions and associated Au polymetallic mineralization in collision zones: An example from the Oligocene Yao'an complex in western Yangtze Craton, SW China - Hang Yang; Peng Wu; Anlin Liu; Zhigang Kong; Xinfu Wang; Shoukui Li; Yu Jiang; Jianjun Liu; Jiaan Qu (Geochemistry, 2025)