Mesozoic magmatism and associated mineralization are widespread in the South China Block (SCB). Tungsten-polymetallic deposits in the Nanling Range within the central SCB represent one of the most important tungsten regions in the world. The Huangsha-Tieshanlong W deposit is an important large quartz vein-type W-polymetallic deposit in southern Jiangxi Province, in the eastern Nanling Range. Zircon UPb analyses of six representative samples of the ore-related granitoids from a tunnel in the Huangsha-Tieshanlong W deposit yielded ages of 152.2 ± 3.8 Ma, 154.0 ± 2.8 Ma, 150.4 ± 4.6 Ma, 151.3 ± 2.7 Ma, 141.6 ± 4.2 Ma, and 142.1 ± 4.6 Ma. These granitoids have low ε_Hf(t) values (−15.7 to −7.6), and old two-stage model ages (1746–1347 Ma), indicating that they were derived from the partial melting of Proterozoic crustal materials. These ages combined with other geochronological data in the region suggest that the Huangsha-Tieshanlong pluton was formed by at least three stages of granitic magmatism during the Middle Jurassic (~168 Ma), Late Jurassic (~152 Ma), and Early Cretaceous (~142 Ma), which coincides with the formation ages of the WSn deposits at 171–160 Ma, 159–150 Ma, and 149–144 Ma, respectively. Thus, the intrusion of the granite and the associated WSn mineralization in the Huangsha-Tieshanlong deposit occurred almost synchronously. It is worth noting that our study indicates that the Early Cretaceous (~142 Ma) is probably another important stage of granitic magmatism and mineralization in the eastern Nanling region.

中生代岩浆作用和相关的成矿作用在华南地块（SCB）中很普遍。渣打银行中部南岭山脉的钨多金属矿床是世界上最重要的钨矿区之一。黄沙-铁山龙钨矿床是江西省南部，南岭山脉东部重要的大型石英脉型钨多金属矿床。Zircon U Pb分析了黄沙-铁山龙W矿床某隧道的六个与矿石相关的花岗岩类代表性样品，年龄分别为152.2±3.8 Ma，154.0±2.8 Ma，150.4±4.6 Ma，151.3±2.7 Ma，141.6±4.2 Ma和142.1±4.6 Ma。这些花岗岩具有低ε_铪（t）值（-15.7至-7.6）和旧的两阶段模型年龄（1746-1347 Ma），表明它们是源自元古代地壳材料的部分熔融。这些年龄与该地区的其他年代学数据相结合，表明黄沙-铁山龙岩体是由中侏罗纪（〜168 Ma），侏罗纪晚期（〜152 Ma）和白垩纪早期（~~）至少三个阶段的花岗岩岩浆作用形成的。 142 Ma），这与W Sn矿床的形成年龄相吻合，分别为171-160 Ma，159-150 Ma和149-144 Ma。因此，花岗岩的侵入和相关的W黄沙-铁山龙矿床的锡矿化几乎同步发生。值得注意的是，我们的研究表明，早白垩世（〜142 Ma）可能是南岭东部地区花岗岩岩浆作用和成矿作用的另一个重要阶段。