摘要
为了研究沿河县萤石矿成因,主要针对研究区内具代表性的水田坝和丰水岭两个矿床地质特征进行研究,并运用等离子质谱(ICP-MS)对稀土元素进行了系统分析。研究结果表明,围岩的稀土总量、轻稀土和重稀土的含量远高于萤石矿石,但是萤石的稀土配分型式与围岩相似。根据Moller等(1976)的Tb/Ca_Tb/La关系图,结合矿体特征和区地质背景研究,认为该区萤石矿为热水(热卤水)再造沉积岩(或矿床)。
In order to study the genesis of fluorite deposit in Yanhe area,mainly aimed at the geologic characteristics of Shuitianba and Fengshuiling fluorite deposit,and use plasma mass spectrun for analysis the REE. The results shows that total amount of rare earth in surrounding rock,light rare earth and heavy rare earth is much higher than fluorite. But the type of rare earth distribution in fluorite is similar to surrounding rock. According to fig of Tb / Ca_Tb / La,unite the characteristics of orebody and research geological background of the area,think that the fluorite deposit is hot water( hot brine) recycled sedimentary rock( or deposit).
出处
《贵州地质》
2016年第3期199-204,198,共7页
Guizhou Geology
基金
贵州省地质矿产勘查开发局青年地质科学研究项目<贵州省务川-沿河片区萤石矿特征及其成因分析>(黔地矿科合(2014)13号)
贵州省国土资源厅组织实施<贵州省矿产资源整装勘查找矿战略选区项目>中的一个子项目<贵州省务川-沿河萤石(铅锌)找矿战略选区项目>黔国土规划院发[2014]4号