| 米山断裂构造变形特征及其意义 |
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| 引用本文： | 许顺山,吕古贤,鲁安怀.米山断裂构造变形特征及其意义[J].地质找矿论丛,1997,12(3):49-57. |
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| 作者姓名： | 许顺山 吕古贤 鲁安怀 |
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| 作者单位： | 中国地质科学院地质力学研究所!北京，100081(许顺山，吕古贤)，中国地质大学!北京(鲁安怀) |
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| 摘 要： | 米山断裂是一多期变形断裂，早期以韧性变形为主，后期以脆性变形为主，断裂变形具有准对称性，西盘变形强度大于东盘。变形强度决定了断裂带的蚀变及矿化特点，蚀变的分带结构与断裂的不同矿化特征都与断裂的变形有关，因此米山断裂的生成与发展，对胶东东部的成岩成矿具有重要作用，它控制了燕山早期花岗岩的侵入，韧性变形作用是金矿成矿的必要条件。
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| 关 键 词： | 米山断裂 断裂 韧性变形 构造变形 金矿床 成矿 |
| 收稿时间： | 1997/3/3 0:00:00 |
| 修稿时间： | 1997/6/17 0:00:00 |
STRUCTURAL DEFORMATION OF MISHAN FAULT AND ITS SIGNIFICANCE |
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| Xu Shunshan,L&#; Guxian and Lu Anhuai.STRUCTURAL DEFORMATION OF MISHAN FAULT AND ITS SIGNIFICANCE[J].Contributions to Geology and Mineral Resources Research,1997,12(3):49-57. |
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| Authors: | Xu Shunshan L&#; Guxian and Lu Anhuai |
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| Institution: | Institute of Geomechanics, CAGS, Beijing, 100081;Institute of Geomechanics, CAGS, Beijing, 100081;China university of Geosciences, Beijing |
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| Abstract: | ishan fault is considered as a multi-period deformation fault with ductile deformation in early period and brittle deformation in later period. The deformation is characterized by parasym-metry, higher degree in west wall than in east wall. Characteristic of alteration zoning and min-eralization zoning depends on the deformation intensity. Main alteration is intense silicification Therefore, formation and devolopment of Mishan fault is important to petrogenesis and metallo-genesis in east Jiaodong. It controlls granite emplacement in early Yanshanian movement. Itsductile deformation is basic condition of gold metallogensis |
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| Keywords: | Mishan fault ductile deformation fault ore-controlling gold metallogensis |
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