| 云南建水荒田-虾洞火山岩型银多金属矿带的硫、铅同位素特征及其地质意义 |
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| 引用本文： | 李国武,杨光斌,杨学广.云南建水荒田-虾洞火山岩型银多金属矿带的硫、铅同位素特征及其地质意义[J].地球与环境,1998(4). |
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| 作者姓名： | 李国武 杨光斌 杨学广 |
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| 作者单位： | 西南工学院资源工程系!绵阳，621002，云南地矿局二大队!文山，663000，云南地矿局二大队!文山，663000 |
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| 摘 要： | 火山岩型银多金属矿床是滇东南地区的重要矿床类型，矿床中疏的δ34S值分布于-6．9‰～+7．3％之间，并且呈波浪式分布；铅同位素组成以正常铅为主，并受异常铅的混染。硫、铅同位素具有相似的变化趋势。这些硫、铅同位素特征表明，该矿床成矿物质可能具有多种来源，除了直接来自玄武岩外，还有来自古海水硫酸盐和地层的贡献；该矿床的成因与玄武岩海底中心式喷发有密切的关系。
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| 关 键 词： | 银多金属矿 同位素 火山岩型 |
SULFUR AND LEAD ISOTOPIC CHARACTERISTICS OF VOLCANOGENIC SILVER POLYMETALLIC MINERALIZATION ZONE IN THE HUANGTIAN-XIADONG AREA, JIANSHUI, YUNNAN AND THEIR GEOLOGICAL IMPLICATIONS |
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| Li Guowu.SULFUR AND LEAD ISOTOPIC CHARACTERISTICS OF VOLCANOGENIC SILVER POLYMETALLIC MINERALIZATION ZONE IN THE HUANGTIAN-XIADONG AREA, JIANSHUI, YUNNAN AND THEIR GEOLOGICAL IMPLICATIONS[J].Earth and Environment,1998(4). |
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| Authors: | Li Guowu |
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| Abstract: | Volcanogenic silver polymetallic ores are an important type of deposits in the southeast of Yunnan. the δ34S of sulphide varies from - 6. 9‰ - + 7. 3‰, and Pb isotopic characteristics showed that ore-forming material came mainly from basalt, and some from sea water and geologic strata. The ore deposit is genetically connected with the volcanic eruption of oceanic basalt. |
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| Keywords: | silver polymetallic ore isotopic characteristics volcanogenic deposit |
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