| Abstract: | In this paper,the data of earthquake events of magnitude MS6.0 and above produced in Hohhot Seismic Station from 2008 to 2015 and the data of0 seismic events from2015 to 2016 in Horinger Seismic Station and the surrounding mobile stations in southern Hohhot are selected.Using Splitlab and SAM software,the spin-correlation method,the least-energy method and the cross-correlation coefficient method are used to analyze the teleseismic and near-seismic phases(SKS,S).The results of this study are in good agreement with the results previously obtained by other researchers.The study of teleseismic SKS splitting reflects the characteristics of the anisotropy of the upper mantle beneath Hohhot,that is,the anisotropy of the upper mantle shows NW,which reflects"fossil"Anisotropy,mainly in the continental structure of stable units and preserves the history of mantle deformation information.The crustal anisotropy reflected by the nearearthquake S-wave splitting study is similar to that of the active fault zone,trending NE as a whole and is consistent with the tectonic stress field background of the northeastern margin of Ordos block. |
