Deep electric structure beneath the intersection area of West Qinling orogenic zone with North-South Seismic tectonic zone in China

Acta Geophysica Sinica

Volumn 57, Issue 8, 2014, Pages 2594-2607

  Zhan, Yan ^a   Zhao, Guo Ze ^a   Wang, Li Feng ^a   Wang, Ji Jun ^a   Chen, Xiao Bin ^a   Zhao, Ling Qiang ^a   Xiao, Qin Bin ^a  

^a INSTITUTE OF GEOLOGY   (China)

Author keywords

Deep electric structure; Magnetelluric (MT); Northeastern Longmenshan fault; West Qinling orogenic zone

Indexed keywords

DATA HANDLING; EARTHQUAKES;

APPARENT RESISTIVITY; DATA PROCESSING AND ANALYSIS; ELECTRIC STRUCTURE; INTERSECTION AREAS; LONGMENSHAN FAULTS; MAGNETELLURIC (MT); MAGNETOTELLURIC SOUNDINGS; SEISMIC VELOCITY STRUCTURE;

FAULTING;

DECOMPOSITION; DIP; EXTENSION; FAULT; OROGENY; SEISMIC VELOCITY; SICHUAN EARTHQUAKE 2008; SKEWNESS; VELOCITY STRUCTURE;

CHINA; GANSU; KANGXIAN; LONGMEN MOUNTAINS; QINGCHUAN; SICHUAN;

EID: 84907099546     PISSN: 00015733     EISSN: None     Source Type: Journal    
DOI: 10.6038/cjg20140819     Document Type: Article

References (57)

1. Burchfiel B C, Chen Z, Liu Y, et a1. 1995. Tectonics of the Longmen Shan and adjacent regions, central China. Int. Geol. Rev., 37(8): 661-735.
2. Burchfiel B C, Royden L H, van der Hilst R D, et al. 2008. A geological and geophysical context for the Wenchuan earthquake of 12 May 2008, Sichuan, People's Republic of China. GSA Today, 18(7): 4-11.
3. Bureau of Geology and Mineral Resources of Sichuan Province. 1982. Regional Geology of Sichuan Province. Beijing: Geological Publishing House, 13.
4. Cai J T, Chen X B, Zhao G Z. 2010. Refined techniques for data processing and two-dimensional inversion in magnetotelluric I: Tensor decomposition and dimensionality analysis. Chinese J. Geophys. (in Chinese), 53(10): 2516-2526.
5. Cai J T, Chen X B. 2010. Refined techniques for data processing and 2-D inversion in magnetotelluric II: Which data polarization mode should be used in 2D inversion. Chinese J. Geophys. (in Chinese), 53(11): 2703-2714.
6. Caldwel G T, Bibby M H, Brown C. 2004. The magnetotelluric phase tensor. Geophysical Journal International, 158(2): 457-469.
7. Chave A D, Thomson D J, Ander M E. 1987. On the robust estimation of power spectra, coherences and transfer functions. J. Geophys. R., 92(B1): 633-648.
8. w7.9 Wenchuan earthquake. Geophysical Research Letters, 37(18): L18302.
9. Chen L S, Wang G E. 1990. Method of Magetotelluric Sounding (in Chinese). Beijing: Geological Publishing House.
10. Chen X B, Zhao G Z, Zhan Y. 2004. A visual intergrated windows system for MT data process and interpretation. Oil Geophysical Prospecting (in Chinese), 39(Suppl.): 11-16.
11. Deng Q D, Chen S F, Zhao X L. 1994. Tectonics, scismicity, and dynamics of the Longmen Shan Mountains and its adjacent regions. Seismological and Geology (in Chinese), 16(4): 389-403.
12. Deng Q D, Zhang P Z, Ran Y K, et al. 2003. Active tectonics and earthquake activities in China. Earth Science Frontiers, 10(Suppl.): 66-73.
13. Deng Q D, Zhang P Z, Ran Y K, et al. 2003. Basic characteristics of active tectonics of China. Science in China Series D. (in Chinese), 46(4): 356-372.
14. s8.0 Wenchuan earthquake. Science China Earth Sciences, 54(9): 1360-1377.
15. Egbert G D, Booker J R. 1986. Robust estimation of geomagnetic transfer functions. J. Geophys. R., 87(1): 173-194.
16. Feng Y M, Cao X D, Zhang E P, et al. 2003. Tectonic evolution framework and nature of the west Qinling orogenic belt. Northwestern Geology (in Chinese), 36(1): 1-10.
17. Gan W J, Zhang P Z, Shen Z K, et al. 2007. Present-day crustal motion within the Tibetan Plateau inferred from GPS measurements. J. Geophys. R., 112(B08416): 1-14.
18. Hubbard J, Shaw J H. 2009. Uplift of the Longmenshan and Tibetan plateau, and the 2008 Wenchuan (M=7.9) earthquake. Nature, 458(7235): 194-197.
19. w7.9 Wenchuan earthquake in the rejuvenated Longmen Shan thrust belt, China. Tectonophysics, 491(1-4): 174-184.
20. Li Z W, Liu S G, Chen H D, et al. 2012. Spatial variation in Meso-Cenozoic exhumation history of the Longmen Shan thrust belt (eastern Tibetan Plateau) and the adjacent western Sichuan basin: Constraints from fission track thermochronology. Journal of Asian Earth Sciences, 47(30): 185-203.
21. Li D Z, Huang Q H, Chen X B. 2009. Error effect on magnetotelluric inversion. Chinese J. Geophys. (in Chinese), 52(1): 268-274.
22. Lin C Y, Wu Y X, Yang C F. 1995. High conductivity zone near to Moho and transition zone between crust and mantle. Acta Seismologica Sinica (in Chinese), 17(2): 230-236.
23. s8.0 earthquake: Preliminary study of the S-wave velocity structure of the crust and upper mantle. Chinese J. Geophys. (in Chinese), 52(2): 309-319.
24. Lou H, Wang C Y, Yao Z X, et al. 2010. Subsection feature of the deep structure and material properties of Longmenshan fault zone. Earth Science Frontiers (in Chinese), 17(5): 128-141.
25. Pei X Z, Zhang G W, Lai S S, et al. 2002. Main geological features of the Mianlue tectonic belt on the southern margin of the West Qinling. Geological Bulletin of China (in Chinese), 23(8-9): 486-494.
26. Prasanta P K, Harinarayana T. 2009. Deep geoelectric structure of the Sikkim Himalayas (NE India) using magnetotelluric studies. Physics of the Earth and Planetary Interiors, 173(1-2): 171-176.
27. Ren J S, Jiang C F, Zhang Z K, et al. 1980. Tectonics and Evolution in China (in Chinese). Beijing: Science Publishing House.
28. Robert A, Zhu J, Vergne J, et al. 2010. Crustal structures in the area of the 2008 Sichuan earthquake from seismologic and gravimetric data. Tectonophysics, 491(1-4): 205-210.
29. Rodi W, Mackie R L. 2001. Nonlinear conjugate gradients algorithm for 2-D magnetotelluric inversion. Geophysics, 66(1): 174-187.
30. Shen Z K, Sun J B, Zhang P Z, et al. 2009. Slip maxima at fault junctions and rupturing of barriers during the 2008 Wenchuan earthquake. Nature Geoscience, 2: 718-724.
31. Wang M, Shen Z K, Niu Z J, et al. 2003. Contemporary crustal deformation of Chinese continent and tectonic block model. Science in China Series D. (in Chinese), 33(Suppl.): 21-32.
32. Wang X B, Zhu Y T, Zhao X K, et al. 2009. Deep conductivity characteristics of the Longmen Shan, Eastern Qinghai-Tibet Plateau. Chinese J. Geophys. (in Chinese), 52(2): 564-571.
33. Wang X, Zhan Y, Zhao G Z, et al. 2010. Deep electric structure beneath the northern section of the western margin of the Ordos basin. Chinese J. Geophys. (in Chinese), 53(3): 595-604.
34. Wang Z, Zhao D P, Wang J. 2010. Deep structure and seismogenesis of the north-south seismic zone in southwest China. J. Geophys. R., 115(B12334): 1-19.
35. Wen X Z, Du F, Zhang P Z, et al. 2011. Correlation of major earthquake sequences on the northern and eastern boundaries of the BayanHar block, and its relation to the 2008 Wenchuan earthquake. Chinese J. Geophys. (in Chinese), 54(3): 706-716.
36. Xiao Q B. 2005. The Visualization program for MT data processing based on database platform. Geophysical and Geochemical Exploration (in Chinese), 29(3): 269-272.
37. w7.9 Wenchuan earthquake, China. Geology, 37: 515-518.
38. Xu Y, Huang R Q, Li Z W, et al. 2009. S-wave velocity structure of the Longmen Shan and Wenchuan earthquake area. Chinese J. Geophys. (in Chinese), 52(2): 329-338.
39. Xu Z J, Song X D. 2010. Joint inversion for crustal and Pn velocities and Moho depth in Eastern Margin of the Tibetan Plateau. Tectonophysics, 491: 185-193.
40. Xu Z Q, Hou L W, Wang Z X, et a1. 1992. Orogenic Processes of the Pongpan Ganze Orogenic Belt of China (in Chinese). Beijing: Geological Publishing House, 1-190.
41. Yuan X C. 1997. The crustal structure of the Qinling orogen and wedging mountain building. Acta Geologica Sini. (in Chinese), 71(3): 227-235.
42. Zhang G W, Guo A L, Liu F T, et al. 1996. Three-dimensional architecture and dynamic analysis of the Qinling orogenic belt. Science in China Series D. (in Chinese), 26(Suppl.): 1-6.
43. Zhang G W, Guo A L, Yao A P. 2004a. Western Qinling-Songpan continental tectonic node in China's continental tectonics. Earth Science Frontiers (in Chinese), 11(3): 23-32.
44. Zhang G W, Cheng S Y, Guo A L, et al. 2004b. Mianlue paleo-suture on the southern margin of the Central Orogenic System in Qinling-Dabie-with a discussion of the assembly of the main part of the continent of China. Geological Bulletin of China (in Chinese), 23(9/10): 846-853.
45. Zhang J S, Gao R, Li Q S, et al. 2007. A study on geophysical characteristic and basement in the Songpan-Garze and Western Qinling Orogenic Belt. Geological Review (in Chinese), 53(2): 261-266.
46. Zhang P Z, Wen X Z, Chen J H. 2010. Oblique, high-angle, listric-reverse faulting and associated development of Strain: The Wenchuan Earthquake of May 12, 2008, Sichuan, China. Annu. Rev. Earth. Planet. Sci., 38: 353-382.
47. Zhang P Z, Deng Q D, Zhang G M, et al. 2003. Active tectonic blocks and strong earthquakes in the continent of China. Science in China (Series D), 46(2): 13-24.
48. Zhang P Z, Xu X W, Wen X Z, et al. 2008. Slip rates and recurrence intervals of the Longmen Shan active fault zone, and tectonic implications for the mechanism of the May 12 Wenchuan earthquake, 2008, Sichuan, China. Chinese J. Geophys. (in Chinese), 51(4): 1066-1073.
49. Zhang Q, Sandvol E, Ni J, et al. 2011. Rayleigh wave tomography of the northeastern margin of the Tibetan Plateau. Earth Planet. Sci. Lett., 304(1-2): 103-112.
50. Zhang Z J, Yuan X H, Chen Y, et al. 2010. Seismic signature of the collision between the east Tibetan escape flow and the Sichuan Basin. Earth and Planetary Science Letters, 292(3-4): 254-264.
51. Zhao C P, Chen Z L, Zhou L Q, et al. 2009. Rupture process of the 8.0 Wenchuan earthquake of Sichuan, China: The segmentation feature. Chinese Science Bulletin, 55(3): 284-292.
52. w7.9 earthquake epicentral area from magnetotelluric data. Geology, 40(12): 1139-1142.
53. Zhao G Z, Zhan Y, Wang L F, et al. 2010. Electric structure of the crust beneath the Ordos Fault Block. Seismology and Geology (in Chinese), 32(3): 345-359.
54. s8.0 inferred from EM measurements in three levers. Chinese J. Geophys. (in Chinese), 52(2): 553-563.
55. Zhao G Z, Tang J, Zhan Y, et al. 2005. Relation between electricity structure of the crust and deformation of crustal blocks on the northeastern margin of Qinghai-Tibet plateau. Science in China (D), 48(10): 1613-1626.
56. s8.0 Wenchuan earthquake sequence in part: preliminary seismotectonic analysis. Seismology and Geology (in Chinese), 30(3): 759-767.
57. Zhu S B, Zhang P Z. 2010. Numeric modeling of the strain accumulation and release of the 2008 Wenchuan, Sichuan, China, Earthquake. Bulletin of the Seismological Society of America, 100(5B): 2825-2839.