| 雄安新区附近主要隐伏断裂第四纪活动性研究 |
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| 关键词:Xiongan New Area Baoding–Shijiazhuang fault Xushui–Dacheng fault fracture activity high density electricity method shallow seismic controlled audio magnetotelluric sounding joint borehole profile |
| 基金项目:中国地质调查局地质调查项目“京津冀协同发展区活动构造与区域地壳稳定性调查”(编号: DD20160267);国家自然科学基金项目“断裂活动导致地应力解耦的机理研究”(编号: 41702341);中国地质科学院地质力学研究所基本科研业务费项目“京津冀地区地下空间地质环境调查预研究”(编号: DZLXJK201711) |
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| Quaternary Activity Study of Major Buried Faults near Xiongan New Area |
| The construction of Xiong’an New Area is an important measure to adjust and optimize the urban layout and spatial structure of Beijing, Tianjin and Hebei. The study of the activity of main buried faults in Xiongan New Area and its adjacent areas is of great significance for the planning and construction of the new area. Through the comprehensive geophysical exploration of controlled source audio-frequency magnetotelluric sounding, shallow seismic and high-density resistivity, combined with borehole stratigraphic profile records, the geometric distribution characteristics and Quaternary activity characteristics of Baoding–Shijiazhuang and Xushui–Dacheng faults in the periphery of Xiongan New Area are basically clarified. Some conclusions have been reached: 1) Baoding–Shijiazhuang fault is a normal fault with strikes NE–SW and dips SE with dip angle being 45°~75°; 2) Xushui–Dacheng fault is a normal fault which strikes WNW–ESE and dips S with dip angle being 70°; 3) Baoding–Shijiazhuang fault has not been active since Quaternary, Xushui–Dacheng fault has not been active since Late Pleistocene, and Xiong’an New Area is in a tectonic stable area as a whole. |
| SHANG Shi-jie,FENG Cheng-jun,TAN Cheng-xuan,QI Bang-shen,ZHANG Peng,MENG Jing,WANG Miao-miao,SUN Ming-qian,WAN Jia-wei,WANG Hui-qing,XIANG Xin-xuan.2019.Quaternary Activity Study of Major Buried Faults near Xiongan New Area[J].Acta Geoscientica Sinica,40(6):836-846. |
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