摘要
萤石是自然界中较常见的一种矿物,分析萤石矿床成矿作用的控制因素具有重要意义。以锦州地区萤石为例,分析了萤石的成矿机理和成矿因素。萤石矿的形成是由于含氟硅酸盐热液沿燧石条带白云质灰岩的构造裂隙上升,首先遇到侏罗系火山岩的覆盖及其所起到的封闭作用致使灰岩遭强烈硅化。锦州地区萤石矿主要为热液充填型萤石矿床。中生代岩浆活动提供含F-低温热液,该溶液与白云质灰岩表面相接触,发生热液交代反应,形成CaF_(2),构成了萤石成矿的先决条件。希望所述内容可以为寻找萤石矿床提供一定的参考。
Fluorite is a common mineral in nature.It is of great significance to analyze the controlling factors of mineralization of fluorite deposits.Taking fluorite in Jinzhou area as an example,this paper analyzed the metallogenic mechanism and metallogenic factors of fluorite.The formation of fluorite ore is due to the rise of fluorosilicate hydrothermal fluid along the structural fissures of the dolomitic limestone in the flint belt,and the first encounter with the coverage of Jurassic volcanic rocks and the sealing effect of the limestone caused the limestone to be strongly silicified.The fluorite deposits in Jinzhou area are mainly hydrothermal-filled fluorite deposits.The Mesozoic magmatic activities provided F-containing low-temperature hydrothermal fluids,which contacted the surface of the dolomitic limestone and underwent hydrothermal metasomatism to form CaF_(2),which constituted the prerequisite for fluorite mineralization.It is hoped that the above content can provide certain reference for the search for fluorite deposits.
作者
赵东博
ZHAO Dongbo(Liaoning Branch,China National Geological Exploration Center of Building Materials Industry,Shenyang 121000,Liaoning,China)
出处
《能源与节能》
2022年第9期29-31,89,共4页
Energy and Energy Conservation
关键词
萤石
成矿机理
成矿因素
fluorite
metallogenic mechanism
metallogenic factors
