Abstract
An algorithm for calculating gravity effect of three-dimensional (3D) linear density distribution is presented in this paper. The linear continuous density distribution is represented with 3D grid model, which has a resemblance to the velocity model used in some seismic tomography codes. The consensus in representation method of density model and velocity model facilitates the seismic-gravity-integrated interpretation or simultaneous inversion. The numerical test of synthetic data shows that although the analytical gravity formula for linear density distribution is more complex than that for piecewise constant density distribution, it takes less time to calculate the gravity effect with linear density model than that with piecewise constant density model. In addition, this method is used in the integrated interpretation of 3D seismological tomography and gravity data in Dabie Mountain area.
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Contribution No. 99FE2015. Institute of Geophysics, China Seismological Bureau.
This research was supported by Climb Program of State Science and Technology Commission of China under the grants 95-S-05.
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Lou, H., Wang, CY. Gravity effect calculation of three-dimensional linear density distribution and its application. Acta Seimol. Sin. 12, 327–334 (1999). https://doi.org/10.1007/s11589-999-0043-0
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DOI: https://doi.org/10.1007/s11589-999-0043-0