| 广西佛子冲铅锌r银1成矿带多元素富集特征及矿床成因 |
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| 引用本文： | 雷良奇,宋慈安,冯佐海.广西佛子冲铅锌r银1成矿带多元素富集特征及矿床成因[J].矿床地质,2002,21(1):74-82. |
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| 作者姓名： | 雷良奇 宋慈安 冯佐海 |
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| 作者单位： | 桂林工学院资源与环境工程系,广西,桂林,541004 |
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| 基金项目： | 广西自然科学基金 (桂科自 0 135 0 45 )，广西“十百千人才工程”专项基金 (编号 :992 2 5 )的联合资助 |
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| 摘 要： | 文章运用元素地球化学研究方法，分析了研究区内岩浆岩、含矿岩系、硫化物矿物中元素的分布特征，研究认为：佛子冲铅锌矿床中Ag,Se（富集于方铅矿中）和Cd(富集于闪锌矿中）具有较大的综合利用价值；矿床的形成与燕山期火山活动有关，不同类型矿床的成矿物质均为岩浆来源；在矿带东南部火山岩覆盖区有进一步找矿的潜力，花岗斑岩与炭质灰岩或英安质凝灰熔岩的交切处是找矿靶区。
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| 关 键 词： | 铅锌矿床 伴生银矿床 矿床成因 燕山期 找矿靶区 广西 火山活动 |
| 文章编号： | 0258-7106(2002)01-0074-09 |
Discussion on Multi-element Enrichment Characteristics and Genesis of Fulichong Pb Zn (Ag) Metallogenic Belt, Guangxi |
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| Lei Liangqi,Song Cian,Feng Zuohai.Discussion on Multi-element Enrichment Characteristics and Genesis of Fulichong Pb Zn (Ag) Metallogenic Belt, Guangxi[J].Mineral Deposits,2002,21(1):74-82. |
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| Authors: | Lei Liangqi Song Cian Feng Zuohai |
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| Abstract: | The Fuzichong Pb-Zn ( Ag) Metallogenic belt is a mediu m-large Pb-Zn ( Ag) concentrated area. In addition to Pb and Zn, there are many other ele ments concentrated in the orebodies , such as Cu , Ag , Cd, Se , Ga , In and Au. The multi-ele ment enrichment makes Fuzichong a very valuable metallogenic belt with the function of comprehensive utilization . Silver is not uniformly distributed, varying in the range of ( 53 ~ 104) × 1 0 -6 , with local enrichment . Ag , Cd, Se are very closely related to Pb , Zn in distribution. Ag and Se are mainly dispersed in galena Ag ( 293 ~ 2 048) ×10-6 ; Se ( 71 ~ 238) ×10-6],whereas Cd is mainly hosted by sphalerite Cd ( 3 900 ~ 6 740) ×10 -6]. Lead and zinc enrich ment is intimately associated with the carborF bearing mudstone, and mineralization is controlled by both the granite-porphyry (fracturesJ and the mudstone . The Pb-Zn deposits in the Fuzichong belt may be of volcanogenic genesis . All the active stages of Yanshanian ( Jl - i) volcanomagma (early stage middle- abyssal granodiorite , middle stage extrusive dacitic tufflava and late stage hypabyssal or sulrvolcanic granite-porphyry) possess the ore-forming conditions. The maximum enrichment of ore-forming elements in the late stage granite-porphyry suggests that there remains a great potential for exploration in the eastern southern part of the Fuzichong belt , where there occur extensive cover of dacitic tufflava and widely exposed granite- porphyry . |
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| Keywords: | Lead-zinc deposits associated Ag deposits genesis element distribution Fuzichong belt of Guangxi |
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