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综合分析了重晶石矿床的沉积学和地球化学特征,结果表明,在扬子大陆东南边缘由于早寒武世地壳的热点活动带来了丰富的成矿物质,形成了SiPBa多金属矿床谱系。下寒武统的黑色岩系形成于缺氧环境,但重晶石形成时期还原性相对较弱。重晶石矿石中有机质碳含量较低,具有原生残留有机质的明显特征。钡的来源为热液喷气作用,生物的发育为钡的转化和富集提供了条件,海水为重晶石的形成提供了充分的硫源,但由于生物的分馏作用较强,致使重晶石δ34S值可达4165‰。
The sedimentary and geochemical characteristics of the barite deposit are comprehensively analyzed. The results show that the SiPBa polymetallic genealogy was formed due to the rich ore-forming materials brought by the hot events of the Early Cambrian crust on the southeastern margin of the Yangtze continent. The Lower Cambrian black rock formed in hypoxia, but the formation of barite during the relatively weak reduction. Barite is characterized by low organic carbon content and distinct native organic matter content. The sources of barium are hydrothermal gas jet, and the development of organisms provides the conditions for the conversion and enrichment of barium. Seawater provides a sufficient source of sulfur for the formation of barite. However, because of the strong fractionation by organisms, barite δ34S value of up to 4165 ‰.