Complex seismic anisotropic structure beneath the central Tien Shan revealed by shear wave splitting analyses

Geophysical Journal International

Volumn 181, Issue 3, 2010, Pages 1678-1686

  Li, Yonghua ^a   Wu, Qingju ^a   Jiang, Lijun ^b   Zhang, Ruiqing ^a  

^a INSTITUTE OF GEOPHYSICS   (China)

^b INSTITUTE OF HIGH ENERGY PHYSICS   (China)

Author keywords

Asia; Kinematics of crustal and mantle deformation; Seismic anisotropy

Indexed keywords

ASTHENOSPHERE; AZIMUTH; CRUSTAL STRUCTURE; DEFORMATION; KINEMATICS; MANTLE STRUCTURE; OROGENIC BELT; S-WAVE; SEISMIC ANISOTROPY; WAVE SPLITTING;

TIEN SHAN;

EID: 77954050595     PISSN: 0956540X     EISSN: 1365246X     Source Type: Journal    
DOI: 10.1111/j.1365-246X.2010.04589.x     Document Type: Article

References (43)

1. Abdrakhmatov KY. Relatively recent construction of the Tien Shan inferred from GPS measurements of present-day crustal deformation rates. Nature 1996, 384:450-453.
2. Avouac JP, Tapponier P, Bai M, You H, Wang G. Active thrusting and folding along the northern Tien Shan and late Cenozoic rotation of Tarim relative to Dzungaria and Kazakhstan. J. geophys. Res. 1993, 98:6755-6804.
3. Barruol G, Hoffmann R. Seismic anisotropy beneath the Geoscope stations from SKS splitting. J. geophys. Res. 1999, 104:10 757-10 774.
4. Barruol G. Upper mantle flow beneath and around the Hangay dome, Central Mongolia. Earth planet. Sci. Lett. 2008, 274:221-233.
5. Bowman JR, Ando M. Shear-wave splitting in the upper-mantle wedge above the Tonga subduction zone. Geophys. J. R. astr. Soc. 1987, 88:25-41.
6. Burtman VS. Structural geology of Variscan Tien Shan. Am. J. Sci. 1975, 275:157-186.
7. Chen YP. Shear wave splitting observations in the Chinese Tianshan orogenic belt. Geophys. Res. Lett. 2005, 32:L07306. 10.1029/2004GL021686, doi
8. Farra V, Vinnik LP, Romanovicz B, Kosarev GL, Kind R. Inversion of teleseismic S particle motion for azimuthal anisotropy in the upper mantle: A feasibility study. Geophys. J. Int. 1991, 106:421-431.
9. Fontaine FR, Barruol G, Tommasi A, Bokelmann GHR. Upper mantle flow beneath French Polynesia from shear-wave splitting. Geophys. J. Int. 2007, 170:1262-1288. 10.1111/j.1365-246X.2007.03475.x, doi
10. Gao R, Xiao XC, Kao H, Li QS, Liu X, Jiang M, Shi DN. Summary of deep seismic probing of the lithospheric structure across the West Kunlun-Tarim-Tianshan. Geol. Bull. China 2002, 21(1):11-18. (in Chinese)
11. Gao S, Davis PM, Liu H, Slack PD, Zorin YuA, Mordvinova VV, Kozhevnikov VM, Meyer RP. Seismic Anisotropy and Mantle Flow beneath the Baikal Rift Zone. Nature 1994, 371:149-151. 10.1038/371149a0, doi
12. Gao SS, Liu KH. Significant seismic anisotropy beneath the southern Lhasa Terrane, Tibetan Plateau. Geochem. Geophys. Geosyst. 2009, 10:Q02008. 10.1029/2008GC002227, doi
13. Gripp AE, Gordon RB. Young tracks of hotspots and current plate velocities. Geophys. J. Int. 2002, 150:321-361.
14. Guo B, Liu Q, Chen J, Zhao D, Li S, Lai Y. Seismic tomography of the crust and upper mantle structure underneath the Chinese Tianshan. Chin. J. Geophys. 2006, 49(6):1693-1699. (in Chinese)
15. Hartog R, Schwartz S. Depth-dependent mantle anisotropy below the San Andreas fault system: apparent splitting parameters and waveforms. J. geophys. Res. 2001, 106:4155-4167.
16. Jiang LJ, Li YH, Wu QJ. Shear wave splitting of Central Tien Shan and its implications. Chin. J. Geophys. 2009
17. Kennett BLN, Engdahl ER, Buland R. Constraints on seismic velocities in the Earth from traveltimes. Geophys. J. Int. 1995, 122:108-124.
18. Lei J, Zhao D. Teleseismic P-wave tomography and the upper mantle structure of the central Tien Shan orogenic belt. Phys. Earth planet. Inter. 2007, 162:165-185.
19. Li A, Chen C. Shear wave splitting beneath the central Tien Shan and tectonic implications. Geophys. Res. Lett. 2006, 33:L22303. 10.1029/2006GL027717, doi
20. Makeyeva LI, Vinnik LP, Roecker S. Shear-wave splitting and small-scale convection in the continental upper mantle. Nature 1992, 358:144-147.
21. Marson-Pidgeon K, Savage MK. Modeling shear-wave splitting observations from Wellington, New Zealand. Geophys. J. Int. 2004, 157:853-864. 10.1111/j.1365-246X.2004.02274.x, doi
22. Roecker S. Constraints on the crust and upper mantle of the Kyrgyz Tien Shan from the preliminary analysis of GHENGIS broad-band seismic data. Russ. Geol. Geophys. 2001, 42:1554-1565.
23. Rümpker G, Silver PG. Apparent shear-wave splitting parameters in the presence of vertically varying anisotropy. Geophys. J. Int. 1998, 135:790-800.
24. Savage MK, Silver PG. Mantle deformation and tectonics: constraints from seismic anisotropy in the western United States. Phys. Earth. planet. Inter. 1993, 78:207-227.
25. Silver PG, Chan WW. Shear wave splitting and subcontinental mantle deformation. J. geophys. Res. 1991, 96:16 429-16 454.
26. Silver PG, Savage MK. The interpretation of shear-wave splitting parameters in the presence of two anisotropic layers. Geophys. J. Int. 1994, 119:949-963.
27. Tian XB, Zhao DP, Zhang HS, Tian Y, Zhang ZJ. Mantle transition zone topography and structure beneath the central Tien Shan orogenic belt. J. geophys. Res. 2009
28. Tommasi A, Tikoff B, Vauchez A. Upper mantle tectonics: 3-D deformation, olivine crystallographic fabrics and seismic properties. Earth planet. Sci. Lett. 1999, 168:173-186.
29. Vecsey L, Plomerová J, Babuška V. Shear-wave splitting measurements-problems and solutions. Tectonophysics 2008, 462:178-196.
30. Vinnik L, Peregoudov D, Makeyeva L, Oreshin S. Towards 3-D fabric in the continental lithosphere and asthenosphere: the Tien Shan. Geophys. Res. Lett. 2002, 29:1795. 10.1029/2001GL014588
31. Vinnik L, Reigber C, Aleshin I, Kosarev G, Kaban M, Oreshin S, Roecker S. Receiver function tomography of the central Tien Shan. Earth planet. Sci. Lett. 2004, 225:131-146.
32. Vinnik LP, Aleshin IM, Kiselev SG, Kosarev GL, Makeyeva LI. Depth localized azimuthal anisotropy from SKS and P receiver functions: The Tien Shan. Geophys. J. Int. 2007, 169:1289-1299. 10.1111/j.1365-246X.2007.03394.x, doi
33. Walker KT, Nyblade AA, Klemperer SL, Bokelmann GHR, Owens TJ. On the relationship between extension and anisotropy: constraints from shear wave splitting across the East African Plateau. J. geophys. Res. 2004, 109. 10.1029/2003JB002866, doi
34. Walker KT, Bokelmann GHR, Klemperer SL, Bock G. Shear-wave splitting around the Eifel hotspot: evidence for a mantle upwelling. Geophys. J. Int. 2005, 163. 10.1111/j.1365-246X.2005.02636.x, doi
35. Wang CY, Flesch LM, Silver PG, Chang LJ, Chan WW. Evidence for mechanically coupled lithosphere in central Asia and resulting implications. Geology 2008, 36:363-366. 10.1130/G24450A.1, doi
36. Wolfe CJ, Vernon F. Shear-wave splitting at central Tien Shan: evidence for rapid variation of anisotropic patterns. Geophys. Res. Lett. 1998, 25:1217-1220.
37. Wüstefeld A, Bokelmann GHR. Null detection in shear wave splitting measurements. Bull. seism. Soc. Am. 2007, 97:1204-1211. 10.1785/0120060190, doi
38. Wüstefeld A, Bokelmann GHR, Zaroli C, Barruol G. SplitLab: a shear-wave splitting environment in Matlab. Comput. Geosci. 2008, 34:512-528. 10.1016/j.cageo.2007.08.002, doi
39. Xu JR, Zhao ZX, Ishikawa Y. Regional characteristics of crustal stress field and tectonic motions in and around Chinese mainland. Chin. J. Geophys. 2008, 51:770-781.
40. Xu ZH. A present-day tectonic stress map for eastern Asia region. Acta seism. Sinica (in Chinese) 2001, 23:492-501.
41. Yang SM, Li J, Wang Q. The deformation pattern and fault rate in the Tianshan Mountains inferred from GPS observations. Sci. China, D: Earth Sci. 2008, 51:1064-1080.
42. Zhao J, Liu G, Lu Z, Zhang X, Zhao G. Lithospheric structure and dynamic processes of the Tianshan orogenic belt and the Junggar basin. Tectonophysics 2003, 376:199-239.
43. Zheng XF, Ouyang B, Zhang DN, Yao ZX, Liang JH, Zheng J. Technical system construction of Data Backup Centre for China Seismograph Network and the data support to researches on the Wenchuan earthquake. Chin. J. Geophys. 2009, 52(5):1412-1417. 10.3969/j.issn.0001-5733.2009.05.031, doi, in Chinese