| 论斑岩铜矿的成因 |
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| 引用本文： | 陈文明.论斑岩铜矿的成因[J].现代地质,2002,16(1):1-8. |
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| 作者姓名： | 陈文明 |
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| 作者单位： | 中国地质科学院,矿产资源研究所,北京,100037 |
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| 基金项目： | 国家自然科学基金项目 ( 4 9970 32 ) |
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| 摘 要： | 较系统地论述了国内外学者对斑岩铜矿成因的不同学术观点 ,包括“岩浆热液说”(岩浆结晶分异说 )、“板块构造成矿说”(含Cu洋壳重熔说 )、“活动转移说”及“变岩浆成矿说” ;分别对它们的立论依据及不足之处进行了较详细的分析 ,并根据作者对斑岩铜矿的时空分布、物质组分、结构构造及矿物中各种包裹体等特征的深入研究 ,提出斑岩铜矿主要是由深源 (地幔或下地壳 )富碱 (K、Na)、硅的热流体 (或与地壳岩石中的裂隙水、地下水混合 )交代或局部熔融上部地壳含Cu岩石而成
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| 关 键 词： | 斑岩铜矿 成因分析 富碱、硅的热流体交代作用 |
| 文章编号： | 1000-8527(2002)01-0001-08 |
| 修稿时间： | 2001年1月15日 |
The origins of porphyry copper deposits |
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| CHEN Wen-ming.The origins of porphyry copper deposits[J].Geoscience——Journal of Graduate School,China University of Geosciences,2002,16(1):1-8. |
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| Authors: | CHEN Wen-ming |
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| Abstract: | This paper relatively systematically deals with different academic views of Chinese and foreign researchers about the origins of porphyry copper deposits. They include the magmatic-hydrothermal theory (magmatic crystallization differentiation theory), plate-tectonic metallogeny (copper-bearing oceanic crust anatexis theory), remobilization theory and metamagmatic metallogeny. The author gives a detailed analysis of the grounds and shortcomings of these theories, and according to an intensive studies of such features of porphyry copper deposits as the temporal-spatial distribution, material composition, textures and structures and various types of inclusions in minerals, it is proposed that porphyry copper deposits form as a result of metasomatism and melting of cupriferous rocks in the upper crust by deep-seated (mantle or lower crust), alkali ( K and Na ) -rich, siliceous hydrothermal fluids (or their mixture with fracture water or groundwater in crustal rocks). |
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| Keywords: | porphyry deposit genetic analysis alkali-rich siliceous hydrothermal metasomatism |
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