| 引用本文： |
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张明华,王春增.内蒙古霍各乞矿区狼山群伸展构造及其控矿作用[J].广西科学,2002,9(3):188-192,197. [点击复制]
- Zhang Minghua,Wang Chunzeng.Extensional Tectonics and Ore Control in Hegeqi Ore Area of Inner Mongolia[J].Guangxi Sciences,2002,9(3):188-192,197. [点击复制]
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| 摘要: |
| 对内蒙古霍各乞矿区内面理、线理、褶皱、断裂构造进行多层次、多尺度、详细的构造解析发现,内蒙古霍各乞矿区狼山群早期存在明显的伸展变形,广泛出现顺层面理。在狼山群第三岩组中发育韧性剪切带、糜棱岩、顺层掩卧褶铍及石香肠构造。霍各乞矿田含矿岩系实际上是变形较强的顺层韧性剪切带,矿床或矿体最初在韧性剪切带及顺层面理中富集成矿,形成浸染状、层状、条带状、块状矿化。 |
| 关键词: 地质构造 伸展变形 韧性剪切带 霍各乞矿田 狼山 |
| DOI： |
| 投稿时间：2002-03-01修订日期：2002-05-20 |
| 基金项目:国家重点科技攻关项目(85-901-01-05-01)专题的部分成果。 |
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| Extensional Tectonics and Ore Control in Hegeqi Ore Area of Inner Mongolia |
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Zhang Minghua, Wang Chunzeng
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| (Dept. of Resource and Environmental Engineering, Guilin Institute of Tech., 12 Jianganlu, Guilin, Guangxi, 541004, China) |
| Abstract: |
| The structures of foliations, lineations,folds and fractures are analyzed in detail in the Hegeqi Ore Field,Inner Mongolia,north China.There apparently exist extensional deformation and layer-parallel plane in Langshan group in the earliest stage.The ductile shear zone, mylonite,layer parallel-lying fold and boudinage come out extensively in the third group of Langshan.The ore contained rock series in the Hegeqi Ore Field are actually layer-parallel ductile shear zones which are strongly deformed.Ores or ore bodies firstly gather in ductile shear zone and layer-parallel plane,and then form layered,ribboned,massive ore deposition. |
| Key words: geological structure extensional deformation ductile share zone Hegeqi ore field Langshan |
