| 滇东北铅、锌、银矿床矿源层问题探讨 |
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| 引用本文： | 李连举,刘洪滔,刘继顺. 滇东北铅、锌、银矿床矿源层问题探讨[J]. 岩土工程界, 1999, 0(6) |
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| 作者姓名： | 李连举 刘洪滔 刘继顺 |
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| 作者单位： | 西南有色地勘局!昆明650051(李连举)，中南工业大学地质研究所!长沙410083(刘洪滔，刘继顺) |
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| 摘 要： | 综述了滇东北地区的沉积环境与区域地层和Ｐｂ、Ｚｎ、Ａｇ 矿床容矿层之间的关系，总结了前人对滇东北地区矿源层问题的认识。在此基础上，以成岩成矿过程的地质－ 地球化学体系为指导思想，分析了本区Ｐｂ、Ｚｎ 、Ａｇ 矿床成矿物质来源。指出了上震旦统－ 下寒武统、石炭系、中、上泥盆统地层既是本区Ｐｂ、Ｚｎ（Ａｇ） 矿床的重要矿源层，也是主要容矿层；寒武系中统是Ａｇ（Ｐｂ、Ｚｎ） 矿床的主要矿源层；碳酸盐岩是本区Ｐｂ、Ｚｎ、Ａｇ 矿床的主要矿源岩。并初步分析了白云岩化的演化过程及其在矿源岩形成过程中的作用
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| 关 键 词： | 矿源层 铅锌银矿床 滇东北 |
A DISCUSSION ON THE SOURCE BED OF Pb-Zn-Ag DEPOSITS IN NORTHEAST YUNNAN |
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| Li Lianju. A DISCUSSION ON THE SOURCE BED OF Pb-Zn-Ag DEPOSITS IN NORTHEAST YUNNAN[J]. Geotechnical Engineering World, 1999, 0(6) |
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| Authors: | Li Lianju |
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| Abstract: | The relation between sedimentary environment and Pb-Zn-Ag deposit-hosting bed is described. The source of ore-forming material is inquired into in accordance with the geochemical system in paragenic and metallogenic process. It is suggested that Upper Sinian, Lower Cambrian, Carboniferous, Middle and Upper Devonian are the source bed and host rocks for Pb-Zn-Ag deposits. Carbonate provides the important source rock. The evolution of dolomitization and its role in the formation of source rocks are discussed. |
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| Keywords: | source bed Pb-Zn-Ag deposit Northeast Yunnan |
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