| 沁水盆地北端中生代构造变形与构造应力场特征 |
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| 引用本文： | 王莹, 张庆龙, 朱文斌, 王良书, 解国爱, 邹旭. 沁水盆地北端中生代构造变形与构造应力场特征[J]. 煤田地质与勘探, 2014, 42(1): 8-12,18. DOI: 10.3969/j.issn.1001-1986.2014.01.002 |
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| 作者姓名： | 王莹 张庆龙 朱文斌 王良书 解国爱 邹旭 |
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| 作者单位： | 1.南京大学地球科学与工程学院, 江苏 南京 210093 |
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| 基金项目： | 国家自然科学基金项目(40634021);国家科技重大专项课题(2008ZX05035-006) |
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| 摘 要： | 在对沁水盆地北端发育的中生代褶皱、断层和节理等构造研究的基础上，分析并总结了区内的构造变形及构造应力场特征，。结果表明：研究区西部构造线以NE-SW向为主；东部构造线以近SN或NW-SE向为主；两者之间的构造线方向主要表现为近EW向。研究区内的褶皱、断裂、节理以及水系的发育特征均表明：本区在晚古生代—中生代经历过一期近SN向的挤压作用，其最大主应力方位为161°~174°，倾角在10°以内，这期挤压作用可能是对印支期构造活动的响应；此外，在距今165±5 Ma至136 Ma期间，本区可能还经历过一期NW–SE向的挤压作用，其最大主应力方位为152°，倾角1°。
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| 关 键 词： | 沁水盆地 构造应力场 煤层气 印支期 燕山期 |
| 收稿时间： | 2012-12-23 |
Mesozoic structural deformation and tectonic stress field characteristics in the north of Qinshui basin |
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| WANG Ying, ZHANG Qinglong, ZHU Wenbin, WANG Liangshu, XIE Guoai, ZOU Xu. Mesozoic structural deformation and tectonic stress field characteristics in the north of Qinshui basin[J]. COAL GEOLOGY & EXPLORATION, 2014, 42(1): 8-12,18. DOI: 10.3969/j.issn.1001-1986.2014.01.002 |
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| Authors: | WANG Ying ZHANG Qinglong ZHU Wenbin WANG Liangshu XIE Guoai ZOU Xu |
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| Affiliation: | 1.School of Earth Sciences and Engineering, Nanjing University, Nanjing 210093, China |
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| Abstract: | The article analyzes and summarizes the structural deformation and tectonic stress field characteristics of the north Qinshui basin based on studying the folds,faults,and joints.The results indicate that the trends of the structure line in different area ares diverse,in the west the structure lines are mainly NE-SW trending;in the east the structure lines are mainly almost SN or NW-SE trending;in the center the structures lines are mainly almost E-W trending.The characters of the folds,fractures,joints and the drainage all manifest that there was almost SN compression in the study area which happened during the Late Paleozoic and the Mesozoic.The azimuth angle of the maximum principal stress is from 161° to 174°,the dip angle is less than 10°,which may be the response of Indosinian tectonic activities.In addition,there may be NW-SE trending compression in the study area which happened during the period from 165±5 Ma to 136 Ma,and the azimuth angle of the maximum principal stress is 152°,the dip angle is 1°. |
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| Keywords: | Qinshui basin tectonic stress field coal bed gas Indosinian Yanshanian |
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