[1]DENG Xiaoguo,WANG Fuyun,MA Cejun,et al.The Crustal Structure Characteristics of Different Tectonic Units in Central Yunnan Revealed by Artificial Seismic Sounding[J].Journal of Seismological Research,2022,45(04):517-525.[doi:10.20015/j.cnki.ISSN1000-0666.2022.0056]
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The Crustal Structure Characteristics of Different Tectonic Units in Central Yunnan Revealed by Artificial Seismic Sounding
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
45
Number of periods:
2022 04
Page number:
517-525
Column:
Public date:
2022-08-20
- Title:
- The Crustal Structure Characteristics of Different Tectonic Units in Central Yunnan Revealed by Artificial Seismic Sounding
- Keywords:
- central Yunnan Province; artificial seismic source; crustal velocity structure; the Moho discontinuity
- CLC:
- P315.24
- DOI:
- 10.20015/j.cnki.ISSN1000-0666.2022.0056
- Abstract:
- We analyse the data from the artificial seismic sources on a wide-angle,reflection/refraction profile,the Zhenkang-Luxi seismic sounding prolife along the 24°N latitude line in central Yunnan Province,and pick Pg and Pn phases of the refracted wave,P1,P2,Pm of the reflected wave.On the basis of the one-dimensional,velocity-structure model,we use the trial-and-error method to fit all the travel-time curves of the seismic phases,then we obtain the one-dimensional,velocity-structure model of the Crust along the Zhenkang-Luxi profile.The results show that the Crust obviously thickens along the profile from west to east,the intra-discontinuity of the mid-and lower-Crust is coincident with the variation of the Moho.The upper Crust of the South China fold system and the Yangtze Block located to the east of the Sanjiang fold system is becoming thin.The upper Crust from Yuxi to Mile in the Yangtze Block is thickening.
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Last Update:
2022-08-01