| Citation: | Shuanggen Jin, wenyao Zhu. Intraplate Deformation of Asia Derived from ITRF2000 Velocity Field. Journal of Earth Science, 2002, 13(1): 14-19.
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The definition of an 'intraplate fixed' frame remains a significant error source for crustal motion studies at a few millimeters per year level. An appropriate implementation of such a frame is very important to avoid biased velocities and to confirm a valid geophysical interpretation. Here,we establish the newest global plate motion model of ITRF2000VEL and research the definition of an Asian-fixed frame in Asia using the ITRF2000 velocity field. By X2 and F ratio tests,we find a subset site in Asia that satisfies a rigid cap rotation with residual velocities & lt; 0. 95 mm/a and provide a stable Asia reference frame (SARF). In this reference frame,we find residual velocities at Asiatic ITRF2000 sites that are consistent with known active tectonic feature. An important result of this study is the identification of internal deformation of the order of 1-2 mm/a in an area usually interpreted as 'stable' Asia. These results should be further checked as newer,denser and more accurate space geodetic data sets with longer observation time span,which become available for Asia.
| Argus D F, Heflin M B, 1995. Plate Motion and Crustal Detormafion Estimated with Geodetlc Data from the Global Positioning System. Geophys Res Lett, 22: 1973-1979 doi: 10.1029/95GL02006 |
| Bilham R, Larson K, Freymueller J, 1997. GPS Measurements of Present-Day Convergence across the Nepal Himalaya. Nature, 389: 61 |
| Chu D H, Gordo R G, 1999. Evidenee for Motion between Nn- bia and Somalia along the Southwest India Ridge. sci enee, 398: 64-67 |
| Chen X. 1992. Probability and Mathematics Science Statistics. Hefei: China Technique University of Science Press |
| DeMets C, Gordon R, Argus D, et al, 1994. Efleet of Recent Revisions to the Geomagnetic Reversal Time SoMe on Estimates of Current Plate Motions. Geophys Res lett, 21: 2191-2194 doi: 10.1029/94GL02118 |
| DeMets C. Gordon R. Argus D, et al, 1990. Current Plate Motions. Geophys J Int, 101: 425-478 doi: 10.1111/j.1365-246X.1990.tb06579.x |
| Editorial Board of"Atlas of Lithospheric Dynamics in China". 1991. Introduction of Lithospheric Dynamics in China. Beijing: Seismological Press(in Chinese) |
| Holt W E, Ni J F. WatlaceTC, et al. 1991. TheActiveTec tonics of the Eastern Himalayan Syntaxis and Surround ing Regions. J Geophys Res, 96(B9): 14595 doi: 10.1029/91JB01021 |
| Kogan M, Steblov G G M. King R W, et al, 2000. Geodetic Constrains on the Rigidity and Relative Motion of Eura-sian and North American. Geophys Res Lett, 27: 2041-2044 doi: 10.1029/2000GL011422 |
| Larson K M, Freymueller J T, Philipsen S, 1997. Global Plate Velocities from the Global Positioning System. J Geophys Res. 102(135): 9961-9981 |
| Molnar P. Caen H l, ,1989. Fault Plane Solutions of Earth quakes and Active Teetonics of the Tibetan Plateau and Its Margins. Geophys J Int, 123 |
| Ma Z I, Gao X L, Ren J W, 1992. Present-DaY Explain of Tectonie Character and Dynamics. Qualernary Research. (4): 293-305 |
| Solomon S C. Sleep N H, 1974. Some Simple Physical Models forAbsolute Plate Motions. J Geophys Res, 79(1 7): 2557-2567 doi: 10.1029/JB079i017p02557 |
| Sillard P. Altamimi Z, Boucher C, 1998. The ITRF96 Realization and Its Associated Velocity Field. Geophys Res Lett, 25(17): 3223-3226 doi: 10.1029/98GL52489 |
| Shen Z C, Zhao A, Yin Y, et al, 2000. Comtemporary CrustaI Deformation in East Asia Constrained by GlobaI Positioning System Measurement. J Gephys Res, 105: 5721-5734 |
| Ye S H, 1996. Earth in Motion Present Day Crustal Motion and Geodynamical Researches and Applications. Changsha: Hunan Science and Technology Press(in Chinese) |
| Zhang Q, Zhu W. Xiong Y, 1999. Global Plate Motion Models Incorporating the Velocity Field of ITRF96. Geophys Res I. ett, 26(18): 2813-2816 |
| Zhang Q, Zhu W, 2000. Net Rotation of the ITRF96. Chinese Journal of Geophysics. 43(5): 598-606(in Chinese) |
| Zhu W, Cheng Z, Xiong Y, et al, 1998. Preliminary Results of Measuring the Crustal Deformation in Qinghai-Xizang Area Using GPS Technique. Science in China(Set D), 41 (3): 314 doi: 10.1007/BF02973121 |
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