Editorial for the Special Issue "Mineralogy, Geochemistry and Geochronology of W-Sn Polymetallic Deposits".

Tungsten and tin deposits provide numerous valuable and critical resources to the world, which has led to them attracting the increasing attention of economic geologists. Liang et al. [[7]] used LA-MC-ICP-MS U-Pb dating of cassiterite and C-O-S-Pb isotope analyses to investigate the mineralization age and source of the ore-forming minerals in the Bawang Sn polymetallic deposit. Yan et al. [[8]] integrated biotite Ar-Ar geochronology, fluid inclusion data from quartz, and C-H-O-S-Pb isotope geochemistry from the Juyuan W deposit. [Extracted from the article]