| 华北型淮南煤田大构造成因分析及构造控水研究 |
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| 引用本文： | 丁同福,汪敏华,赵俊峰.华北型淮南煤田大构造成因分析及构造控水研究[J].煤田地质与勘探,2020,48(4):102-108. |
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| 作者姓名： | 丁同福 汪敏华 赵俊峰 |
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| 作者单位： | 淮南矿业集团地质勘探工程处,安徽淮南232052;淮南矿业集团煤业分公司,安徽淮南232091 |
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| 摘 要： | 为了深入分析华北型淮南煤田大构造4期成因及其构造控水作用,利用淮南煤田大构造褶皱断裂形态与华北克拉通地史学、地层学、区域构造进行相互验证对比,并依据构造控水对矿区8对生产矿井影响进行定量化评价。结果表明:淮南煤田大构造为印支、燕山、喜马拉雅运动叠加形成,印支运动Ⅰ期形成淮南煤田近东西向构造线(体),Ⅱ期形成淮南煤田近南北向构造线(体),印支运动后淮南煤田主体构造格局基本成型,Ⅲ期燕山运动、Ⅳ期喜马拉雅运动对淮南煤田大构造格局影响不显著;根据运动时间、形成构造的切割关系,得出Ⅱ期构造切割Ⅰ期构造、近南北方向断层(裂)切割近东西向断层(裂)、Ⅲ期的岩浆岩均穿越Ⅰ、Ⅱ期断层带(组),不存在切割关系,不存在断层(裂)发育到新生代地层;Ⅰ—Ⅳ期构造对各个矿井水害影响程度差异较为显著,其中影响最显著的是顾北矿。淮南煤田为石炭–二叠纪聚煤后全球构造事件参与者、见证者,淮南煤田大构造中蕴含的分期构造特征为研究华北克拉通及周边区域构造最直接的佐证资料。
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| 关 键 词： | 构造控水 成因 华北克拉通 燕山运动 喜马拉雅运动 淮南煤田 |
| 收稿时间： | 2020-04-16 |
Genesis analysis and study on tectonic control on water of Huainan North China-type coal field |
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| DING Tongfu,WANG Minhua,ZHAO Junfeng.Genesis analysis and study on tectonic control on water of Huainan North China-type coal field[J].Coal Geology & Exploration,2020,48(4):102-108. |
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| Authors: | DING Tongfu WANG Minhua ZHAO Junfeng |
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| Institution: | (Geological Exploration Engineering Department of Huainan Mining Group,Huainan 232052,China;Coal Branch of Huainan Mining Group,Huainan 232091,China) |
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| Abstract: | In order to analyze deeply the genesis and tectonic control on water of the macrostructures of the fourth stage of the Huainan North China-type coalfield, the forms of folds and faults of the Huainan coalfield were used to verify and compare the North China craton geohistory, stratigraphy, and regional tectonics. Quantitative evaluation of the impact of mining area 8 on production mines was conducted. The results show that the Huainan coalfield was formed by the superposition of the Indosinian, Yanshan and Himalayan movements. The Indosinian movement formed the Huainan coalfield at near-east-west tectonic line(body) in the first stage, and the Huainan coalfield was formed at near-north-south tectonic line(body) in the second stage. After the tributary movement, the main tectonic pattern of the Huainan coalfield had basically taken shape. The third stage of the Yanshan movement and the fourth stage of the Himalayan movement had no significant effect on the large tectonic pattern of the Huainan coalfield. According to the movement time and the cutting relationship of the formed structures, the second stage structures cut the first stage structure. The near- north-south faults(cracks) cut the near-east-west faults(cracks), and the third stage magmatic rocks all crossed the first and the second stage fault zones(groups), there was no cutting relationship, and no faults(fractures) developed into the Cenozoic strata. The first stage to fourth stage structures had a significant difference in the degree of impact on the water hazards in each mine. Among them, the Gubei coalmine is the most effected. Huainan coalfield was a participant and witness of global tectonic events after coal accumulation in the Carboniferous-Permian, the staged tectonic feature of the macrostructures in Huainan coalfield provides direct evidence for study on the North China craton and the surrounding areas. |
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| Keywords: | tectonic control on water genesis North China craton Yanshan movement Himalayan movement Huainan coalfield |
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