| 柴达木盆地西部天青石矿区矿物学与元素地球化学特征研究 |
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| 引用本文： | 韩继龙,韩凤清,年秀清,刘文玉,毛庆飞,马喆,Syed-Asim Hussain.柴达木盆地西部天青石矿区矿物学与元素地球化学特征研究[J].盐湖研究,2018,26(4):34-43. |
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| 作者姓名： | 韩继龙 韩凤清 年秀清 刘文玉 毛庆飞 马喆 Syed-Asim Hussain |
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| 作者单位： | 中国科学院青海盐湖研究所,中国科学院盐湖资源综合高效利用重点实验室,青海 西宁 810008;青海省盐湖地质与环境重点实验室,青海 西宁 810008;中国科学院大学 北京 100039,中国科学院青海盐湖研究所,中国科学院盐湖资源综合高效利用重点实验室,青海 西宁 810008;青海省盐湖地质与环境重点实验室,青海 西宁 810008,中国科学院青海盐湖研究所,中国科学院盐湖资源综合高效利用重点实验室,青海 西宁 810008;青海省盐湖地质与环境重点实验室,青海 西宁 810008;中国科学院大学 北京 100039,中国科学院青海盐湖研究所,中国科学院盐湖资源综合高效利用重点实验室,青海 西宁 810008;青海省盐湖地质与环境重点实验室,青海 西宁 810008;中国科学院大学 北京 100039,中国科学院青海盐湖研究所,中国科学院盐湖资源综合高效利用重点实验室,青海 西宁 810008;青海省盐湖地质与环境重点实验室,青海 西宁 810008;中国科学院大学 北京 100039,中国科学院青海盐湖研究所,中国科学院盐湖资源综合高效利用重点实验室,青海 西宁 810008;青海省盐湖地质与环境重点实验室,青海 西宁 810008;中国科学院大学 北京 100039,中国科学院青海盐湖研究所,中国科学院盐湖资源综合高效利用重点实验室,青海 西宁 810008;青海省盐湖地质与环境重点实验室,青海 西宁 810008;中国科学院大学 北京 100039 |
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| 基金项目： | 青海省应用基础研究计划项目(2014-ZJ-702) |
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| 摘 要： | 柴达木盆地天青石资源极为丰富,已发现有大风山、碱山、尖顶山等大型天青石矿床。通过元素分析、元素相关性分析、矿物组合分析等方法与手段,对柴达木盆地天青石矿区矿物特点及元素地球化学特征进行了研究。得到如下结论:大风山矿区以天青石—方解石—镁方解石矿物组合为主,矿物品位均值为59%;碱山矿区以天青石—文石矿物组合为主,矿物品位均值为39.6%;石膏、白云石在各矿区矿物均有分布,且含量较低。石膏与天青石成正相关关系,白云石的存在对天青石成矿来说是不利因素,铁白云石、文石和镁方解石的普遍存在可说明该区矿物成矿温度较高。Sr与S成正相关关系,证明Sr主要以天青石(硫酸锶)形式存在,锶与镁、钙成非线性关系,锶含量高则钙含量低,钙主要赋存在石膏中,而非方解石中。Sr/Ba比值、Sr/Cu比值分析表明该矿区经历过长期干旱的环境,Mg/Ca比值分析表明该区天青石成矿过程中微生物对其成矿作用起到了非常重要的作用。
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| 关 键 词： | 柴达木盆地 天青石矿 矿物组合 成矿背景 物质来源 |
| 收稿时间： | 2017/10/12 0:00:00 |
| 修稿时间： | 2017/11/6 0:00:00 |
Study on the Celestite Mineralogical and Element Geochemistry Characteristics in the West of Qaidam Basin |
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| HAN Ji-long,HAN Feng-qing,NIAN Xiu-qing,LIU Wen-Yu,MAO Qing-fei,MA Zhe and Syed-Asim HUSSAIN.Study on the Celestite Mineralogical and Element Geochemistry Characteristics in the West of Qaidam Basin[J].Journal of Salt Lake Research,2018,26(4):34-43. |
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| Authors: | HAN Ji-long HAN Feng-qing NIAN Xiu-qing LIU Wen-Yu MAO Qing-fei MA Zhe and Syed-Asim HUSSAIN |
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| Institution: | Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources,Qinghai Institute of Salt Lakes,Chinese Academy of Sciences,Xining,810008,China;Qinghai Provincial Key Laboratory of Geology and Environment of Salt Lakes,Xining,810008,China;University of Chinese Academy of Sciences,Beijing,100049,China,Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources,Qinghai Institute of Salt Lakes,Chinese Academy of Sciences,Xining,810008,China;Qinghai Provincial Key Laboratory of Geology and Environment of Salt Lakes,Xining,810008,China,Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources,Qinghai Institute of Salt Lakes,Chinese Academy of Sciences,Xining,810008,China;Qinghai Provincial Key Laboratory of Geology and Environment of Salt Lakes,Xining,810008,China;University of Chinese Academy of Sciences,Beijing,100049,China,Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources,Qinghai Institute of Salt Lakes,Chinese Academy of Sciences,Xining,810008,China;Qinghai Provincial Key Laboratory of Geology and Environment of Salt Lakes,Xining,810008,China;University of Chinese Academy of Sciences,Beijing,100049,China,Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources,Qinghai Institute of Salt Lakes,Chinese Academy of Sciences,Xining,810008,China;Qinghai Provincial Key Laboratory of Geology and Environment of Salt Lakes,Xining,810008,China;University of Chinese Academy of Sciences,Beijing,100049,China,Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources,Qinghai Institute of Salt Lakes,Chinese Academy of Sciences,Xining,810008,China;Qinghai Provincial Key Laboratory of Geology and Environment of Salt Lakes,Xining,810008,China;University of Chinese Academy of Sciences,Beijing,100049,China and Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources,Qinghai Institute of Salt Lakes,Chinese Academy of Sciences,Xining,810008,China;Qinghai Provincial Key Laboratory of Geology and Environment of Salt Lakes,Xining,810008,China;University of Chinese Academy of Sciences,Beijing,100049,China |
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| Abstract: | Qaidam Basin is rich of celestite resources.So far,many large ore deposits were found,such as Dafengshan,Jianshan,Jiandingshan,etc.In this paper,we studied the characteristics and forming conditions of celestite mineral in Qaidam Basin,and discussed mineral structure,mineral assemblage,mineralization background,substance sources and application prospect.The conclusions are as follows:First,celestite-calcite-magnesium calcite,celestite-ankerite and celestite-aragonite are the three kinds of mineral in this region.The regularity explained ore deposit types,revealed the mineral occurrence condition and provided clues for prospecting direction.Second,we found that metallogenic cycle have overtaken the stage of carbonate deposits and to the stage of sulfate deposits,through the linear analysis of Sr/S,Sr/Mg and Sr/Ca.Third,The Sr/Ba ratio could be used as a judgment of metallogenic stages,the Sr/Cu ratio showed that the mining area involved a long drought environment,and the Mg/Ca ratio shows that microorganism acted a very important role in the mineralization process. |
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