| 韧性剪切作用与深源流体演化和金矿化的耦合关系 |
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| 引用本文： | 秦大军.韧性剪切作用与深源流体演化和金矿化的耦合关系[J].地球与环境,1997(3). |
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| 作者姓名： | 秦大军 |
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| 作者单位： | 中国科学院地质研究所!北京，100029 |
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| 摘 要： | 流体形成演化是当前地球科学的前沿领域，但构造-流体-成矿作用的研究仍很薄弱。文章通过对流体性质的分析，探讨了地质作用过程中流体演化、韧性剪切带中流体演化与矿化的关系。提出当韧性剪切转为脆性剪切时产生的扩容，导致深源流体发生骤然减压冷却，并与地壳浅部流体混合，发生与围岩的交代反应而形成热液蚀变。成矿作用发生于深源流体与上地壳流体的“混合”阶段及流体与围岩交代反应阶段。
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| 关 键 词： | 深源流体 脆性剪切扩容 液体混合 成矿 |
THE COUPLED RELATIONSHIPS BETWEEN SHEAR ZONE AND DEEP-DERIVED FLUID AND MINERALIZATION |
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| Qin Da jun.THE COUPLED RELATIONSHIPS BETWEEN SHEAR ZONE AND DEEP-DERIVED FLUID AND MINERALIZATION[J].Earth and Environment,1997(3). |
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| Authors: | Qin Da jun |
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| Abstract: | The evolution of fluid plays important roles in the process of ductile shearing and gold mineF4liza-tion. 0n the basis of fluid properties, the evolution of fluid in the geological processes and ductile shearzone, and their relati0nships with gold mineralizati0n are discussed- The spatial extension, while duc-tile shearing turned into brittle shearing, led to deep-derived-fluid Cooling, mixing with upper crustalmeteoric fluid, and metasomatizing with wallrocks. Mineralizati0n occurred in the stage of fiuid ccol-ing and metasomatism. |
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| Keywords: | deep-derived fluid fluid mixing mineralization |
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