| 辽东硼矿的成矿机制及成矿模式 |
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| 引用本文： | 王翠芝,肖荣阁,刘敬党.辽东硼矿的成矿机制及成矿模式[J].地球科学,2008,33(6):813-824. |
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| 作者姓名： | 王翠芝 肖荣阁 刘敬党 |
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| 作者单位： | 福州大学紫金矿业学院，中国地质大学地球科学与资源学院，辽宁省化工地质勘查院 |
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| 基金项目： | 国家自然科学学基金项目，辽宁省国土资源厅基金2006 |
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| 摘 要： | 为了解辽东硼矿的成矿机制及建立成矿模式,分析了含硼岩系、镁质容矿岩石、区域变质作用及混合岩化作用、构造等四大控矿因素,发现含硼岩系具富硼特征,容矿岩石具富镁特点并可成为硼质的沉淀剂,含硼岩系中硼在区域变质和混合岩化过程中得到进一步活化形成含硼热液,含硼热液在有利的构造空间交代镁质岩石即可形成镁硼酸盐型硼矿.含硼岩系、镁质容矿岩石是硼矿形成的物质基础,区域变质及混合岩化作用、构造活动是硼矿形成的必要条件.辽东硼矿成矿模式为原始火山-沉积初始富集和部分熔融含硼热液交代镁质岩石.
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| 关 键 词： | 辽东地区 硼矿 控矿因素 成矿机制 成矿模式 |
Ore-Forming Genesis and Model of Eastern Liaoning Borate Deposits |
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| WANG Cui-zhi,XIAO Rong-ge,LIU Jing-dang.Zijin Mining School of Fuzhou University,Fuzhou ,China.School of the Earth Sciences and Resources,China University of Geosciences,Beijing ,China.Liaoning Geological Survey for Chemical Industry,Jinzhou ,China.Ore-Forming Genesis and Model of Eastern Liaoning Borate Deposits[J].Earth Science-Journal of China University of Geosciences,2008,33(6):813-824. |
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| Authors: | WANG Cui-zhi XIAO Rong-ge LIU Jing-dangZijin Mining School of Fuzhou University Fuzhou ChinaSchool of the Earth Sciences and Resources China University of Geosciences Beijing ChinaLiaoning Geological Survey for Chemical Industry Jinzhou China |
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| Institution: | WANG Cui-zhi1,XIAO Rong-ge2,LIU Jing-dang31.Zijin Mining School of Fuzhou University,Fuzhou 350108,China2.School of the Earth Sciences and Resources,China University of Geosciences,Beijing 100083,China3.Liaoning Geological Survey for Chemical Industry,Jinzhou 121000,China |
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| Abstract: | In order to figure out the genesis and the model of eastern Liaoning borate deposits,the four main controlling factors including boron-bearing rock system,magnesian host rocks,regional metamorphism and migmatitization,and tectonism are studied.It reveals that the boron-bearing rock system is rich in boron,the host rocks of the borate deposits in magnesium and is the precipitator for boron;besides,the boron of the boron-bearing rock system has gotten more active and a lot of boron-bearing fluid formed in the course of the regional metamorphism and migmatitization of the boron-bearing rock system;while the magnesium borate deposits have formed in the metasomatism of the boron-bearing fluid with magnesian hosting rocks in favorable structural space.Thus,the boron-bearing rock system and the magnesian rocks are the foundation of the borate deposits,whereas regional metamorphism and migmatitization and tectonism are the necessary conditions.Ore-forming model of eastern Liaoning borate deposits is the primary enrichment of the eovolcanic sediment and the metamorphic hydrothermal replacement between some boron-bearing fluid and the magnesian rocks during the process of regional metamorphism and migmatitization and tectonism. |
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| Keywords: | eastern Liaoning area borate deposits ore-controlling factors ore-forming genesis ore-forming model |
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