| 鄂尔多斯盆地基底断裂多期演化及其主控因素分析——基于构造物理模拟实验 |
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| 关键词:Ordos Basin structural physical modeling basement faults detachments main controlling factor |
| 基金项目:中国石油勘探开发研究院科学研究与技术开发项目(编号: 2017ycq16);中国地质调查局二级项目(编号: DD20160183) |
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| 摘要: |
| An Analysis of Polyphasic Evolution and the Main Controlling Factors of Basement Faults in the Ordos Basin Based on Structural Physical Simulation Experiments |
| A structural physical modeling experiment was conducted in the polyphasic basement faults of the Ordos basin to identify the influences of polyphasic activation based on the environment of the basement faults on the overburden strata. The experimental results indicate that the basement faults in the basin controlled the spreading and activity of the fault systems in the overburden cover and detachment layer. Syn-rift modeling was conducted to observe the activity during the sedimentation period of pre-Cambrian sedimentary action, which exhibits that the basement faults of this period display the characteristics of positive growth fault. Furthermore, extensional faulting sedimentation modeling was conducted to investigate the sedimentation of the Cambrian and later period, which shows that the basement faults exhibit inheritance signatures. The modeling exhibits that the basement faults resulted in differences in the internal stress conditions of the basin, thereby influencing the oil and gas distribution. |
| DONG Min,SONG Wei,WANG Zhi-hai,LEI Yong-liang,ZENG Xu,ZHANG Bo,ZHOU Yan-xi.2019.An Analysis of Polyphasic Evolution and the Main Controlling Factors of Basement Faults in the Ordos Basin Based on Structural Physical Simulation Experiments[J].Acta Geoscientica Sinica,40(6):847-852. |
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