摘要
广西是中国重要有色金属基地之一,位于古中国构造域南端,铅锌矿产资源十分丰富。广西矽卡岩型铅锌矿矿床成矿时代以燕山晚期为主,且分布较广;区域内铅锌矿床的空间分布主要与构造活动及岩浆岩有关,其中铅锌矿床的成矿岩体与区域性断裂构造关系更加密切。区内大型矽卡岩型铅锌矿矿床主要成矿于泥盆系中,以燕山期为主要成矿期。本文对广西区内主要矽卡岩型铅锌矿床进行了整理分析,总结了广西铅锌矿空间分布及成矿规律,通过S、Pb同位素探讨了矿床的主要成矿物质来源于壳源,且与岩浆作用关系密切对区内下一步找矿具有指导意义。
Guangxi is one of the important nonferrous metal bases in China, located at the southern end of the ancient Chinese tectonic domain, with abundant lead and zinc mineral resources. The metallogenic age of the skarn type lead-zinc deposit in Guangxi is mainly in late Yanshanian and widely distributed. The spatial distribution of lead-zinc deposits in the region is mainly related to tectonic activities and magmatic rocks, and the ore-forming rock mass of lead-zinc deposits is more closely related to regional fault structures. The large skarn type Pb-Zn deposit in this area is mainly formed in Devonian system with Yanshanian as the main metallogenic period. In this paper, the main skarn-type lead-zinc deposits in Guangxi are analyzed, and the spatial distribution and metallogenic regularity of the lead-zinc deposits in Guangxi are summarized. Through S and Pb isotopes, it is discussed that the main ore-forming materials of the deposits come from the crust source, and are closely related to magmatism, which has guiding significance for the next prospecting in the area.
