粤北石人嶂钨矿成矿机理及成矿构造背景

石人嶂钨矿地处南岭钨锡成矿带中段,整个南岭地区原始地层的高钨含量为本区成矿作用提供了物质准备,多期次的花岗质岩浆活动使钨元素进一步富集。在燕山期,整个南岭地区构造应力环境转化为碰撞后的拉张松驰阶段,提供了一个开放的成矿体系,形成一系列导矿断裂和容矿构造,随着幔源物质的活动参与及陆壳重熔型花岗岩的分异演化,含矿热液流体沿导矿断裂上升运移,充填至各类容矿构造中,石人嶂地区在燕山中期发生大规模成矿作用。

Ore-forming Mechanism and Tectonic Setting of Shirengzhang Tungsten Ore

Shirengzhang tungsten mine was located in the middle section of Nanling mineralization area. The high tungsten content of the primitive stratum in Nanling area offers a source for mineralization. The multi-periodic granite-magmatism leads to rich collection of tungsten element. In Yanshan geological period, structural stress environment changed to the extensional phase of post-collision, which provided an opening mineralization system. Along with the participation of the mental-derived magmatism and the differentiation and evolution of crustal remelting type granite in mid-Yanshan geological period, cosmically mineralization took place in Shirengzhang Zone.