| 流体的沸腾和混合在热液成矿中的意义 |
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| 引用本文： | 张德会.流体的沸腾和混合在热液成矿中的意义[J].地球科学进展,1997,12(6):546-552. |
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| 作者姓名： | 张德会 |
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| 作者单位： | 中国科学院地球化学研究所 |
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| 摘 要： | 讨论了流体沸腾和混合在热液成矿中的重要作用及研究进展。成矿汉体的降温可能不是许多金属矿物沉淀的最有效机制；流体的沸腾作用对浅成热液帮床，斑岩铜钼等矿床中矿物的沉淀作用很大，造成的矿化具有强度大，品位富及垂向分带较发育的特征，同时因其影响范围小，作用时间短，限制了它的作用的发挥。
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| 关 键 词： | 热液成矿 成矿流体 沸腾作用 混合作用 |
SOME NEW ADVANCES IN ORE FORMING FLUID GEOCHEMISTRY ON BOILING AND MIXING OF FLUIDS DURING THE PROCESSES OF HYDROTHERMAL DEPOSITS |
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| ZHANG Dehui.SOME NEW ADVANCES IN ORE FORMING FLUID GEOCHEMISTRY ON BOILING AND MIXING OF FLUIDS DURING THE PROCESSES OF HYDROTHERMAL DEPOSITS[J].Advance in Earth Sciences,1997,12(6):546-552. |
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| Authors: | ZHANG Dehui |
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| Institution: | Institute of Geochemistry,Chinese Academy of Sciences,Guiyang 550002 |
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| Abstract: | The ore forming fluid geochemistry is an important branch of fluid geology. In recent years, among which the studies on precipitation mechanisms of metal elements has been paid attention to. Emphasis are placed on boiling and mixing of fluid controls on hydrothermal ore deposits.In this paper, some new advances in the boiling and mixing of fluids have been reviewed. The cooling resulted from temperature drop is not most effiective in precipitation some metal elements. Boiling of hydrothermal solution is perhaps the most effective ore depositional mechanism in many boiling hydrothermal systems, epithermal systems, and porphyry copper molybdenum deposits.With the result that mineralization is characterized by high grade, large intensity, and well developed vertical ore zoning. Its small influence range and short lived time restrict its role played in ore deposition. Mixing of hydrothermal solutions may be responsible for many hydrothermal deposits formation. Its larger influence range and long lived time is perhaps one of very important mechanisms for many large and superlarge deposits. |
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| Keywords: | Ore forming fluid geochemistry Boiling of fluid Mixing of fluids |
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