| 构造演化对湖南省瓦斯赋存分布的控制 |
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| 引用本文： | 王蔚,贾天让,张子敏,徐东方,董雁梧.构造演化对湖南省瓦斯赋存分布的控制[J].煤田地质与勘探,2016,44(5):10-15. |
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| 作者姓名： | 王蔚 贾天让 张子敏 徐东方 董雁梧 |
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| 基金项目： | 国家科技重大专项课题（2011ZX05040-005） |
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| 摘 要： | 应用瓦斯赋存地质构造逐级控制理论，结合湖南省煤矿瓦斯地质资料，探讨了湖南省煤矿瓦斯赋存构造控制规律，进行瓦斯分带划分和瓦斯带特征分析。研究结果表明:湖南省境内地质构造复杂，北面受华北板块的碰撞挤压，西面受藏滇板块的推挤，南面受印支板块作用，东面受太平洋菲律宾板块长时期的碰撞挤压，使得湖南省内煤层受构造破坏严重，构造煤发育，煤层厚度变化大，剧烈的岩浆热变质作用增强了煤的变质程度，各种因素综合作用结果对瓦斯赋存有重大影响。将湖南省煤矿瓦斯赋存分布划分为2个高突瓦斯带、1个高瓦斯带和5个低瓦斯带。
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| 关 键 词： | 瓦斯赋存 构造逐级控制 构造演化 瓦斯分带 |
| 收稿时间： | 2015-07-20 |
Tectonic control on gas occurrence and distribution in Hunan Province |
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| Abstract: | Applying the theory of step-by-step control on gas occurrence, combining with gas geological data of coal mines in Hunan Province,the paper discussed the tectonic control law of the gas occurrence, analyzed the gas zoning and the characteristics of gas zones. The results show that the geological structure in Hunan Province is complicated, the north was collided and compressed by north China plate, the west was jostled by Tibetan-Yunnan plate, the south was effected by Indochina plate, the east was collided and compressed by Pacific-Philippines plate for long time, making coal seam structures in Hunan Province severely destroyed, structures of coalfields complex, tectonic coal developed and seam thickness changed a lot. Intense magmatic thermal metamorphism increased the metamorphic grade of coal, resulting in significant influence on gas occurrence. Coal mine gas occurrence distribution in Hunan Province is divided into two high gasoutburst zones, one high gas zone and fivelow gas zones. |
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