The 2159-order high-precision gravity field model (SGG-UGM-2) is combined with the CRUST1.0 model to remove the influence of other factors to accurately obtain the high-precision Moho gravity anomaly of the Tibetan Plateau. With the constraints of multiple seismic profiles, the inversion parameters (average depth and interface density difference) required for Moho inversion are obtained. The Bott iteration method is introduced to improve the iteration efficiency and accuracy of the Parker-Oldenburg inversion method, and the high-precision Moho depth in the Qinghai-Tibet Plateau is obtained quickly and effectively. It is found that the Moho in this area has the characteristics of two depressions and two uplifts.
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