中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Present-time crustal deformation in China and its surrounding regions by GPS

文献类型:期刊论文

作者Wang, XY; Zhu, WY; Fu, Y; You, XZ; Wang, Q; Cheng, ZY; Ren, JW
刊名CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
出版日期2002-03-01
卷号45期号:2页码:198-209
关键词GPS plate motion present time crustal deformation China and surrounding regions
英文摘要Applying recent 10-year GPS measurement data from several nationside GPS networks, serveral regional GPS monitoring networks and the Asia-Pacific Regional Geodetic Project (APRGP), we give out a combined and consistent velocity field solution in ITRF97 by rotation transformation of regional GPS network results. In order to study the characteristics of present-time intra-plate crustal deformation of China, we have constructed a new present-time plate motion model named ITRF97VEL. The model can better describe present-time features of global plate motion than the geological model NNR-NUVEL1A. Based on ITRF97VEL, deformation velocities of more than 260 GPS sites are determined. The results show that the crustal motion is very inhomogenous. The crustal deformation in the west of China is far stronger and more complicated than that in the east of China, taking the N-S seismic belt of China as a boundary. The deformation velocity gradually reduces from south to north in the west of China by energy release in several W-E direction arc suture zones. The Qinghai-Xizang plateau is shortening in north-south direction and extending in west-east direction due to the strong shove of Indian plate. The shortening of about 15mm/a and 9-13mm/a is accommodated across Himalayan block and the west Tianshan, respectively. Between the longitudes of 80degreesE to 91degreesE in southern Tibet, there is E-W extension of 20.2 +/- 1.2mm/a. The slip rates of KJFZ in south Qinghai-Xizang plateau and Altun Tahg fault are 2-3 mm/a and 4-6mm/a, respectively. Our GPS results indicate that there is a shortening of less than 7 mm/a within the Longmen shan. These results support the supposition of crustal thickening.
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Geochemistry & Geophysics
研究领域[WOS]Geochemistry & Geophysics
关键词[WOS]POSITIONING SYSTEM MEASUREMENTS ; VELOCITY-FIELD ; ASIA ; MOTION ; RATES ; CONSTRAINTS ; EARTHQUAKES ; TECTONICS ; SLIP
收录类别SCI
语种英语
WOS记录号WOS:000181887100006
公开日期2010-07-30
源URL[http://119.78.226.72//handle/331011/10968]  
专题上海天文台_天文地球动力学研究中心
作者单位1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China
2.State Seismol Bur, Inst Geol, Beijing 100029, Peoples R China
3.State Seismol Bur, Inst Seismol, Wuhan 430071, Peoples R China
4.Xian Inst Surveying & Mapping, Xian 710054, Peoples R China
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GB/T 7714
Wang, XY,Zhu, WY,Fu, Y,et al. Present-time crustal deformation in China and its surrounding regions by GPS[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2002,45(2):198-209.
APA Wang, XY.,Zhu, WY.,Fu, Y.,You, XZ.,Wang, Q.,...&Ren, JW.(2002).Present-time crustal deformation in China and its surrounding regions by GPS.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,45(2),198-209.
MLA Wang, XY,et al."Present-time crustal deformation in China and its surrounding regions by GPS".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 45.2(2002):198-209.

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来源:上海天文台

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