Combined cassiterite, scheelite, and apatite U–Pb dating of Sn-Cu(W) mineralization events in the Dayishan ore field, South China

作者：Hua Jiang, Biao Liu, Hua Kong, Xinyu Luo, Qianhong Wu, Shefa Chen, Nengwen Cao · 发表于：Ore Geology Reviews · 年份：2025 · DOI：10.1016/j.oregeorev.2025.106515 · 被引用次数：3 · 研究领域：Geological and Geochemical Analysis、Geochemistry and Geologic Mapping、earthquake and tectonic studies

• The Sn-Cu polymetallic mineralization occur at 150–165 Ma. • The ore-forming fluid presents a reduced environment with low temperature and depleted Cl content. • Scheelite U–Pb age determined at 133.58 Ma may associated to the deep concealed pluton. The Dayishan ore field, a significant Sn-polymetallic production area in South China, hosts a variety of tin deposits, including the Lvzi’ao Cu (−Sn) deposit, Zhimashan Sn-Cu deposit, Baishaziling Sn deposit, and Maozaishan Sn (−W) deposit. However, the genetic relationships between the Sn-Cu-W deposits and the Dayishan granitic complexes remain unclear. Here, we present the U–Pb ages from zircon, cassiterite, apatite, and scheelite obtained from different granites and ore types within the Dayishan ore field. The Sn metallogenic age was determined through cassiterite U–Pb geochronology, yielding ages between 150 Ma and 153 Ma, while the Cu metallogenic age was identified through apatite U–Pb dating at 153.5 Ma. These ages are consistent with the zircon U–Pb age of Dayishan granitic complexes (152.37 Ma). In contrast, scheelite U–Pb geochronology provided an age of 133.58 Ma, characterizing the W metallogenic age. Geochemical variations in apatite from diverse deposits reveal systematic trends in F, Cl, and S contents and Cl/F ratios and ∑REE + Y concentration. The range of Y/Ho ratios in apatite suggests that the ore-forming material source of Sn and Cu deposits originated from a shared magmatic-hydrothermal fluids in Dayishan g...