中国矿山工程

Liaoji gold mine is located in the northeast wing of Bihenying dome in the Qinglong-Luoping mineralization belt in the northern Golden Triangle of Yunnan, Guizhou and Guangxi. According to the mineralization model with structural alteration variant (SBT) as the core established by gold prospecting in southwestern Guizhou, the gold orebodies occurring in SBT have been found through drilling engineering verification. The gold resources preliminarily discovered are in small deposits. The host rocks are mainly breccia tuff, breccia tuffaceous basalt, breccia limestone and breccia claystone. The hydrothermal alteration closely related to gold mineralization mainly includes limonitization, silicification and pyritization. Gold mainly exists in silicate minerals and sulfides in the form of encapsulated gold, with an average share of 37.52% and 35.90% respectively. The gold in strongly weathered to moderately weathered ores mainly exists in the form of free gold.