| 准噶尔盆地及周缘二叠纪以来构造应力场解析 |
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| 引用本文： | 肖芳锋,侯贵廷,王延欣,李乐. 准噶尔盆地及周缘二叠纪以来构造应力场解析[J]. 北京大学学报(自然科学版), 2010, 46(2): 224-230 |
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| 作者姓名： | 肖芳锋 侯贵廷 王延欣 李乐 |
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| 作者单位： | 北京大学地球与空间科学学院, 造山带与地壳演化教育部重点实验室, 北京 100871; |
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| 基金项目： | 国家自然科学基金(40772121,40172066,40314141);;国家重点基础研究发展计划项目(2009CB219302)资助 |
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| 摘 要： | 通过构造地质演化分析, 将准噶尔盆地及周缘二叠纪以来具有较强构造变形的构造应力场分为 3 期: 二叠纪末、侏罗纪末( 或延续到早白垩世末) 和新近纪以来。根据岩墙、节理、擦痕、褶皱与断层等应力感构造的测量分析, 得出准噶尔盆地及周缘三期构造应力场的最大主应力方向分别为北西西-北西向、近南北向, 北北东向。基于对新近纪以来准噶尔盆地构造应力场的二维有限元模拟, 进一步对整个盆地应力场的分布特征、盆地边界几何形态对应力场的影响等问题进行了讨论与分析。
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| 关 键 词： | 准噶尔盆地 构造应力场 最大主应力 岩墙 节理 褶皱 |
| 收稿时间： | 2009-04-29 |
Study on Structural Stress Fields since Permian, Junggar Basin and Adjacent Areas |
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| XIAO Fangfeng,HOU Guiting,WANG Yanxin,LI Le. Study on Structural Stress Fields since Permian, Junggar Basin and Adjacent Areas[J]. Acta Scientiarum Naturalium Universitatis Pekinensis, 2010, 46(2): 224-230 |
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| Authors: | XIAO Fangfeng HOU Guiting WANG Yanxin LI Le |
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| Affiliation: | The Key laboratory of Orogenic Belts and Crustal Evolution, Ministry of Education, School of Earth and Space Sciences, Peking University, Beijing 100871; |
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| Abstract: | Three periods of structural stress fields can be recognized since Permian in Junggar Basin and adjacent areas based on structural evolution analysis,that is the end of Permian,the end of Jurassic(or lasting to the end of K1)and Neogene.Their maximum principal stress orientation are respectively NWW-NW,near SN,and NNE,which are derived from the occurrence data of the stress-response structures,i.e.,dykes,joints,slickensides,folds and faults.Furthermore,the authors simulated the stress field since Neogene bas... |
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| Keywords: | Junggar Basin structural stress fields maximum principal stress dyke joints folds |
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