| ????GPS????о?????????ж?????????????? |
| |
| 引用本文： | 王双绪,张晓亮,张希,吴珍汉,胡道功.????GPS????о?????????ж??????????????[J].大地测量与地球动力学,2010,30(4):43-50. |
| |
| 作者姓名： | 王双绪 张晓亮 张希 吴珍汉 胡道功 |
| |
| 作者单位： | 1. 中国地震局第二监测中心,西安,710054
2. 中国地质科学院地质力学研究所,北京,100081 |
| |
| 基金项目： | 中国地质调查局"青藏铁路沿线活动断裂调查与应力应变综合监测"，中国地震局监测预报司"中国大陆7～8级地震中长期危险性预测研究" |
| |
| 摘 要： | ??????????ж???·????GPS??????2005??2007????????????????????????????????????ε?ò??????????????о???????????ж???·??????????????????????????????????????Щ??????????????????1???о?????????????????????-??????????????????????????????????????????￡????????????????????????????????????????????????????????????2???????????????????????α??η?????????????????η?????????й??????????1????????????????????????????????????????-????????????3?????????-?????????????F76??F67??F50 3???????????????????????????????-??????????????F73??F65????λ???丽?????????????????У????????????????????????????ε??????
|
| 关 键 词： | ????????ж? GPS??? ???????? ????????? ???????? |
RESEARCH ON PRESENT-DAY CRUSTAL MOVEMENT AND DEFORMATION IN MIDDLE OF LHASA BLOCK FROM GPS OBSERVATION |
| |
| Wang Shuangxu,Zhang Xiaoliang,Zhang Xi,Wu Zhenhan,Hu Daogong.RESEARCH ON PRESENT-DAY CRUSTAL MOVEMENT AND DEFORMATION IN MIDDLE OF LHASA BLOCK FROM GPS OBSERVATION[J].Journal of Geodesy and Geodynamics,2010,30(4):43-50. |
| |
| Authors: | Wang Shuangxu Zhang Xiaoliang Zhang Xi Wu Zhenhan Hu Daogong |
| |
| Institution: | 1)Second Crust Monitoring and Application Center，CEA，Xi’an 7100542)Institute of Geomechanics，CAGS，Beijing 100081 |
| |
| Abstract: | On the basis of the GPS measurement data in 2005—2007 along the railway in central Lhasa block, combining with the parameters of regional active faults and topographic geomorphic character and historical strong earthquake, the characteristics of present day crustal movement and deformation and main fault activity along the railway in the middle of Lhasa block are analyzed. The conclusions are drawn as follows.1)The present day horizontal movement direction of the studied area is WE NEE,consistent with the Tibetan plateau movement background by the northward collision of the India block that reflects the joint action of the horizontal dynamics from both the north southward horizontal compression and the eastward matter flow.2)The regional apparent strain distribution manifests itself in the different mode in different zone that closely related to the crust extension deformation made and reflects the divergence of the basin extension deformation with the ‘basin mountain’ tectonic activity of pressed and rise mountainous region.3)Active velocities of the faults:F76,F67 and F50 evidently descent from S to N,in the spaces that they intersect with the NE NNE faults F73 and F65 and their adjant area of high apparent strain distribution the historical seismic activity was very strong it reflects the inherit of tectonic activity and deformation. |
| |
| Keywords: | the middle of Lhasa block GPS observational nowadays crust movement deformation constitution activity difference prevent disaster meaning |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《大地测量与地球动力学》浏览原始摘要信息 |
| 点击此处可从《大地测量与地球动力学》下载免费的PDF全文 |
