Advances in Earth Science ›› 2003, Vol. 18 ›› Issue (1): 4-011. doi: 10.11867/j.issn.1001-8166.2003.01.0004

• Articles • Previous Articles     Next Articles


Ma Zongjin 1,Zhang Peizhen 1,Ren Jinwei 1, Feng Rui 2,Zhang Jin 1   

  1. 1.Institute of Geology, China Seismological Bureau, Beijing 100029,China;2.Data Center of Institute of Geophysics, China Seismological Bureau, Beijing 100031,China
  • Received:2002-08-23 Revised:2002-11-20 Online:2003-02-10 Published:2003-02-01

Ma Zongjin,Zhang Peizhen,Ren Jinwei, Feng Rui,Zhang Jin1. NEW COGNITIONS ON THE GLOBAL AND CHINESE CONTINENTAL CRUSTAL MOVEMENTS FROM GPS HORIZONTAL VECTOR FIELDS[J]. Advances in Earth Science, 2003, 18(1): 4-011.

Based on the GPS vector field of Chinese Continent and the global vector field issued by the IERS, we analyses the state of the global and Chinese continental crustal movements from global scale to regional scale, the results are:①The GPS vector fields show that the deformations of Chinese-Mongolian tectonic region are the strongest around the globe; ②There are three-level tectonic units with different characteristics (Region, Strip and Block) divided from Chinese-Mongolian tectonic region (or Chinese-Mongolian sub-plate); ③The shape of the western Chinese-Mongolian Region is a large triangle, the three margins of this triangle are all important structural seismic zones controlling more than 2/3 earthquakes (Ms≥8) around the globe, moreover thethickness of the crust changes rapidly across these three margins; ④The eastern Chinese-Mongolian region is typical area of compressive-type and extensive-type continent margin, and the GPS vector field shows that this part is creeping eastwards; ⑤The earthquake (Ms=8.1) occurring in Kunlun mountain in 2001 islocated in the strong strain area of visual strain field obtained from the GPS vector field; ⑥The global GPS vector field shows that the movements between N/S hemispheres are disharmonious, this disharmonious zone (B) is composed of 13 left-lateral strike-slip faults with somewhat compression.Based on the these mentioned above, two questions are discussed: ①Are the four global tectonic systems (circum-Pacific Ocean, Middle Ocean Ridges, plateaus of north hemisphere and circum-Equator tectonic system) related with double dissymmetry of the earth?②Can the plate movement shown by GPS vector field be taken as the surface conditions constraining the 3-D movement of the mantle?

No related articles found!
Full text