Depth determination of the Moho interface beneath the Tibetan plateau and other areas of China

• Main Authors: Yu, Diming (Author), Su, Jinrong (Author), Sun, Youshun (Contributor), Toksoz, M. Nafi (Contributor), Morgan, Frank Dale (Contributor), Wang, Xiyu (Contributor), Liu, Jun (Contributor)
• Other Authors: Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences (Contributor)
• Format: Article
• Language: English
• Published: Seismological Society of China, 2016-10-21T18:57:37Z.
• Subjects: Article
• Online Access: Get fulltext

We apply the adaptive moving window method of Sun et al. to the most recent catalog data and the data recorded by portable stations to construct the velocity structure of the crust and upper mantle, and to determine the depth of the Moho interface beneath the Tibetan plateau and other areas of China. We first select 2 600 locations in the study region with 1° intervals, then at each location invert for a five-layer 1-D P-wave velocity model from the surface down to the uppermost mantle by performing a Monte Carlo random search. The Moho depth at each location is then determined, and the Moho interface beneath the study region is obtained through proper interpolation with certain smoothing. Compared to depths obtained by previous studies, our results show more accurate Moho depths in the Tibetan plateau, Tianshan region and other areas of the study region.
United States. Defense Threat Reduction Agency (Contract DTRA01-00-C-0024)
Chinese Academy of Sciences (Fund KJCX2-EW-121)