投稿时间：2012-06-02
修订日期：2012-12-27
中文摘要:青海大风山是中国典型的陆相碳酸盐-硫酸盐沉积组合锶矿床,也是中国目前储量最大的锶矿床。文章对大风山矿床中不同产状的天青石进行了系统的电子探针测试,分析归纳了不同类型矿石中天青石的成分变化规律,发现同心圆状天青石中的SrO含量最高,其次是细纤维状、花朵状、钟乳状、假层纹状、粗纤维状天青石,隐晶质天青石含量最低。通过与江西省萍乡包公庙、宜春慈化、湖南浏阳永和海相碳酸盐沉积组合锶矿床、重庆大足、玉峡及干沟等海相碳酸盐-硫酸盐沉积组合锶矿床、云南金顶硫化物-天青石层控伴生锶矿床天青石的对比,总结了不同类型矿床中天青石的特征,指出青海大风山天青石矿床成分简单,除SrSO4较高外,其余均相对较低,有利于碳酸锶的提取和回收,具有很高的工业价值。
Abstract:The Dafengshan strontium ore deposit in Qinghai Province is a typical continental facies carbonate-sulfate deposit with the largest reserves of celestite in China. The authors studied the strontium component of celestites with different modes of occurrence from the Dafengshan strontium ore deposit by using the electron microprobe analysis and detected the variation regularity of the composition. It is discovered that the concentric circle-shaped celestite has the highest content of SrO, followed by fine fiber-shaped, flower-shaped, stalactitic, pseudo-laminated and crude fiber-shaped ones. The cryptocrystalline celestite has the lowest content of SrO. Based on a comparison with other types of celestite ore deposits such as Baogongmiao and Cihua in Jiangxi, Yonghe in Hunan, Dazu, Yuxia and Gangou in Chongqing and Jinding in Yunnan, the authors summarized the characteristics of different types of celestite deposits and pointed out that the Dafengshan strontium ore deposit has high industrial value. The Dafengshan strontium ore deposit is rich in SrSO4 and poor in other useless components, and this is benefitial to the extraction and recovery of strontium carbonate.
文章编号：
中图分类号：P618.78
文献标志码：
基金项目:本文得到中国地质调查局地质调查项目(编号:1212011220803、1212011120989、1212010633903)的资助
引用文本：
孙艳,刘喜方,王瑞江,陈振宇,李建康,李善平,赵芝.2013.青海大风山锶矿床中天青石的成分特征[J].矿床地质,32(1):148~156SUN Yan,LIU XiFang,WANG RuiJiang,CHEN ZhenYu,LI JianKang,LI ShanPing,ZHAO Zhi.2013.Compositional characteristics of celestite in Dafengshan strontium deposit, Qinghai Province[J].Mineral Deposits32(1):148~156
图/表
