| 利用GPS观测资料反演华北地区现今构造应力场 |
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| 关键词:North China region GPS data inversion tectonic stress field |
| 基金项目:国家自然科学基金,华北GPS地形变监测网建设联合资助 |
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| 摘要: |
| Back Analysis of Present Tectonic Stress Field in North China Region Using GPS Data |
| On the basis of available data of GPS, the present tectonic stress field in north China region was presented by means of the finite element method. The result shows that the present tectonic stress field results from 140°～320°trending tensile stress in addition to 55°～235°_trending pressure stress which is twice as large as the former.The 55°～235°trending pressure stress seems to be mainly due to the pressure of the Pacific plate and the Indian plate whose driving force is 1.5 times higher than that of the Pacific plate .The SE～NW trending tensile stress is related to the tensive mechanism resulting from the upheaval of upper mantle. |
| YUAN Jin-rong,XU Ju-sheng,GAO Shi-jun.1999.Back Analysis of Present Tectonic Stress Field in North China Region Using GPS Data[J].Acta Geoscientica Sinica,20(3):232-238. |
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