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扬子地区印支末期大地构造动力学数值模拟

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高武斌, 楼达. 扬子地区印支末期大地构造动力学数值模拟[J]. 海洋地质前沿, 2013, 29(8): 18-24.
引用本文: 高武斌, 楼达. 扬子地区印支末期大地构造动力学数值模拟[J]. 海洋地质前沿, 2013, 29(8): 18-24.
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GAO Wubin, LOU Da. NUMERICAL SIMULATION OF TECTONIC DYNAMICS OF THE YANGTZE AT THE END OF INDOSINIAN EVENT[J]. Marine Geology Frontiers, 2013, 29(8): 18-24.
Citation: GAO Wubin, LOU Da. NUMERICAL SIMULATION OF TECTONIC DYNAMICS OF THE YANGTZE AT THE END OF INDOSINIAN EVENT[J]. Marine Geology Frontiers, 2013, 29(8): 18-24.
shu

扬子地区印支末期大地构造动力学数值模拟

  • 1 中国海洋大学海洋地球科学学院, 青岛 266100;

  • 2 海底科学与探测技术教育部重点实验室, 青岛 266100;

  • 3 中国人民解放军 57015 部队, 北京 100082;

  • 4 中国石油大港油田公司, 天津 300280

  • 基金项目:

    海洋863重点项目(2009AA093401)

    90814011)

    国家自然科学基金(41072152

    中国地质调查局项目(1212011120103)

详细信息
    作者简介: 高武斌(1980-),男,硕士,主要从事地质工程学及其数值模拟的研究工作.E-mail:9001029@qq.com

  • 中图分类号: P541

NUMERICAL SIMULATION OF TECTONIC DYNAMICS OF THE YANGTZE AT THE END OF INDOSINIAN EVENT

  • 1 College of Marine Geosciences, Ocean University of China, Qingdao 266100, China;

  • 2 Key Laboratory of Submarine Geosciences and Prospecting Techniques, Ministry of Education, Qingdao 266100, China;

  • 3 Troops 57015 Chinese People's Liberation Army, Beijing 100082, China;

  • 4 Dagang Oil Field Company, Ltd. CNPC, Dagang 300280, Tianjin, China

    摘要
  • 采用有限元方法模拟了扬子地区印支末期应力场的分布特征。根据模拟结果,对比已知断裂的展布方向,定量分析了扬子地区压应力及主应力方向的分布特征,并探讨了影响扬子地区印支末期构造特征的主要因素。据此得出以下研究结论:通过不断调整模型的边界条件发现,在印支末期,当华北地块为SE向挤压时,模型中压性应力场低值区的分布范围及主应力方向分别与扬子地区已知断裂密度及展布方向具有较好的对应关系。
    The stress field of the Yangtze area by the end of Indosinian event was simulated with the finite element numerical modeling (FEM). Compared with the density and spatial distribution of faults, we quantitatively studied the distribution patterns of the third principal stresses and the direction of principal stresses. The main factor, which influenced the tectonic features of the Yangtze area, was discussed accordingly. The faults in the model were introduced as Coulomb-type frictional zones that refer to contact analysis of FEM. By adjusting the boundary condition of the models, we found that under a NW-SE compression coming from North China Block, the distribution pattern of the third and the principal stress were related with the density and position of fault strikes.
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出版历程
收稿日期:  2013-04-06

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