| 山西吕梁山北段中生代构造特征及对成矿的制约 |
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| 作者姓名： | 孙思磊 张兆琪 |
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| 作者单位： | 山西省地质调查院,太原 030006 |
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| 基金项目： | 中国地质调查局“大同市幅、偏关县幅1:25万区调修测(编号: 基[2010]矿评01-11-07)”项目资助 |
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| 摘 要： | 为进一步研究山西吕梁山北段中生代构造特征及对成矿的制约,利用数字化填图方法,在偏关县一带开展1:25万区域地质调查。发现几条中生代大型构造带,查明了这些大型构造带的空间展布、性质、断裂组合及运动学特征; 证实了中生代为该区重要的多金属成矿期,成矿作用尽管与中生代岩浆活动关系密切,但在空间上分布受NE向隐伏构造的制约; 大型挠褶构造是地壳强烈隆升的标志,区内大型构造带多数是在挠褶构造的基础上叠加断层而形成的。该研究对于探讨山西中—新生代构造的演化发展具有重要意义。
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| 关 键 词： | 山西吕梁山 构造特征 区域成矿 挠褶构造 等距性 |
| 收稿时间： | 2018-10-15 |
Mesozoic tectonic characteristics and its restriction on mineralization in northern Lüliang Mountain of Shanxi Province |
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| Authors: | SUN Silei ZHANG Zhaoqi |
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| Institution: | Shanxi Institution of Geological Survey, Taiyuan 030006, China |
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| Abstract: | In order to further study the Mesozoic tectonic characteristics and its restrictions on mineralization in northern Lüliang Mountain of Shanxi Province, using the digital mapping method, the authors conducted 1:250 000 regional geological survey in Pianguan County. Several large Mesozoic tectonic belts were found and their spatial distribution, properties, fault assemblage and kinematics characteristics were also investigated. It has been verified that Mesozoic period is the most important polymetallic metallogenic period and the mineralization was closely related to the Mesozoic magma with restriction by the NE concealed structures. Large flexure structures are the sign of strong uplift of the Earth’s crust. All the large tectonic belts in this area were formed by superimposing faults on the basis of flexure structures. This research can be of significant importance to the study of evolution and development of Mesozoic and Cenozoic structures. |
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| Keywords: | Lüliang Mountain of Shanxi Province tectonic characteristics regional metallogenesis flexure structure stepping scaling |
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