| 新疆伊犁京希-伊尔曼德金矿区角砾岩特征及成因 |
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| 引用本文： | 肖龙,王方正.新疆伊犁京希-伊尔曼德金矿区角砾岩特征及成因[J].矿物岩石,2002,22(2):9-12. |
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| 作者姓名： | 肖龙 王方正 |
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| 作者单位： | 1. 中国科学院广州地球化学研究所,广东,广州,510640
2. 中国地质大学地球科学院,湖北,武汉,430074 |
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| 基金项目： | 中澳合作项目“中国新疆吐拉苏地区金矿勘察”，中国科学院知识创新项目 (KZCX2 -10 1) |
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| 摘 要： | 京希－伊尔曼德金矿化区内发育有大量似层状产出的角砾岩，研究认为它们是与热液流体直接相关的水力致裂角砾岩，空间上沿不整合面之上覆粗碎屑岩层产出，角砾岩化的过程为：深源热流体在压力和热梯度的驱使下沿陡倾断层上升，当其到达孔隙度发育的粗碎屑岩层时，热流体转为侧向顺层侵入并使围岩发生角砾岩化，形成热液角砾岩。角砾岩特征的分形分析表明，角砾岩化的形成作用以物理－机械破碎作用为主，能量中等。金矿化与角砾岩化强度及空间分布密切相关。
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| 关 键 词： | 新疆 金矿区 角砾岩 成因 分形 深源热流体 空间分布 |
| 文章编号： | 1001-6872(2002)02-0009-04 |
STUDY OF CHARACTERISTICS AND ORIGIN OF BRECCIAS IN THE JINXI-YILMEND GOLD DEPOSIT, YILING,XINJIANG |
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| XIAO Long ,WNAG Fang zheng .Guangzhou Institute of Geochemistry,Chinese Acdemy of Science,Guangzhou,China, .China University of Geosciences,Wuhan.STUDY OF CHARACTERISTICS AND ORIGIN OF BRECCIAS IN THE JINXI-YILMEND GOLD DEPOSIT, YILING,XINJIANG[J].Journal of Mineralogy and Petrology,2002,22(2):9-12. |
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| Authors: | XIAO Long WNAG Fang zheng Guangzhou Institute of Geochemistry Chinese Acdemy of Science Guangzhou China China University of Geosciences Wuhan |
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| Institution: | XIAO Long 1,WNAG Fang zheng 2 1.Guangzhou Institute of Geochemistry,Chinese Acdemy of Science,Guangzhou510640,China, 2.China University of Geosciences,Wuhan 430074 |
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| Abstract: | Strata bound like breccias were developed in the Jinxi Yelmend gold deposit of Yining County,Xinjiang.It was considered that they were hydraulic breccias and resulted from the intrusion hydrothermal fluid.Hydrothermal fluids driven by pressure and heat gradients moved upwards along steep dipping faults and then migrated laterally when they reached high preamble clastic rocks,forming breccias.Fractal analysis indicated that the brecciation process was dominated by physical fragmentation with moderate energy. |
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| Keywords: | hydraulic breccia brecciation fractal gold mineralization Jinxi Yelmend Xinjiang |
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