| PRESENT STRESS STATE NEAR MEILING ARCUATE FAULTS |
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| 作者姓名： | 孙叶 王宗杰 沈士贞 杨建华 师继承 田洪清 程伟雪 张景寿 |
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| 作者单位： | 562 Comprehensive Geological Brigade，Chinese Academy of Geological Sciences，562 Comprehensive Geological Brigade，Chinese Academy of Geological Sciences，562 Comprehensive Geological Brigade，Chinese Academy of Geological Sciences，562 Comprehensive Geological Brigade，Chinese Academy of Geological Sciences，562 Comprehensive Geological Brigade，Chinese Academy of Geological Sciences，562 Comprehensive Geological Brigade，Chinese Academy of Geological Sciences，562 Comprehensive Geological Brigade，Chinese Academy of Geological Sciences，562 Comprehensive Geological Brigade，Chinese Academy of Geological Sciences |
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| 摘 要： | In this paper an analysis of the present stress field near the Meiling arcuate faults in Beijing area is made. Based on the in situ stress measurements, petrofabric analysis and model experiments, it has been found that this local stress field is a rotational shear stress field. It has been active from the late Yenshanian up to the present with the outer side rotating clockwise. The features of the local stress field are different from those of the present regional stress field characteristic of the Neocathaysian system. The trajectories of the maximum principal compressive stresses of the former show an arcuate pattern converging towards SE and diverging towards NW. However, those of the latter extend approximately in the NWW direction.
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