| 山东七宝山角砾岩筒成矿流体构造动力学过程 |
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| 引用本文： | 徐兴旺,张小允.山东七宝山角砾岩筒成矿流体构造动力学过程[J].黄金地质,1999,5(3):19-27. |
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| 作者姓名： | 徐兴旺 张小允 |
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| 作者单位： | [1]中国科学院地质所 [2]山东莲宝矿业集团七宝山金矿 |
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| 基金项目： | 国家自然科学基金项目，中国科学院 “九五”黄金重大项目，山东莲宝集团七宝山金矿找矿专项基金 |
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| 摘 要： | 山东七宝山角砾岩筒内外流体构造（岩）类型多样，具自身特有的时空结构。岩筒内角砾岩胶结胶体中的结晶矿物和矿体类型在空间分布上具规律性的结构特征，并与角砾岩体分布的结构相吻合。角砾岩筒结构，构造的构造动力学分析结果表明，角砾岩筒岩石的破裂形成于流体的双重致裂作用的脉动扩展，即：在流体的热应力和液压双重作用下形成性质不同的节理裂隙和上凸锥面状裂隙带，并脉动式往上扩展形成圆柱状压裂角砾岩体；锥面状裂隙带顶
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| 关 键 词： | 金－铜矿 角砾岩筒 成矿流体 构造动力学 金矿床 |
TECTONIC DYNAMIC PROCESS OF ORE FORMING FLUIDS IN THE BRECCIA PIPE, QIBAOHAN, SHANDONG |
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| Xu Xingwang,Cai Xinping,Wang Jie,Qin Dajun,Zhang Baolin,Liang Guanghe,Gao Haozhong.TECTONIC DYNAMIC PROCESS OF ORE FORMING FLUIDS IN THE BRECCIA PIPE, QIBAOHAN, SHANDONG[J].Gold Geology,1999,5(3):19-27. |
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| Authors: | Xu Xingwang Cai Xinping Wang Jie Qin Dajun Zhang Baolin Liang Guanghe Gao Haozhong |
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| Abstract: | There are many types of fluidogeneous tectonites inside and outside the breccia pipe with distinct space time texture. The crystal minerals and orebodies in the breccia cement vein rock destribute regularly in space and their textures are corresponding to that of distribution of breccia body. Tectonic dynamic analyzing results of textures and structures of the breccia pipe indicate that fractures of rocks in the breccia pipe are caused by double fracturing of fluids and pulsating expanding. Namely, under the actions of thermal stress and pressure of fluids, joint fracture and waxing pyramidal fractures zone of different characters are formed, which pulsatily expand upward and form the cylindrical fracturing breccia rock bodies. Rocks in peak of the pyramidal fractures zone explode instantly and the fluids flow together on the peak. The fluids flow rapidly and the explosive body expands upward in shape of inverse cone. Then the pyramidal explosion breccia rocks and pan cover shattering breccia rocks locating on the upper part of the pipe are formed finally. Gold rich fluids are enriched and precipitated near the boiling surface in the lower part of inverse cone like fissure body on the upper pipe. Copper rich fluids are mainly enriched and mineralized in junction area where temperature and pressure are relative higher. |
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| Keywords: | gold copper deposit breccia pipe ore forming fluid tectonic dynamic Shandong |
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