DOI: 10.5176/2251-3353_GEOS14.21
Authors:Robert Tenzer, Wenjin Chen
Abstract: We apply the gravimetric inverse problem for a determination of the Moho density contrast. This method utilizes the functional relation between the refined gravity data and the unknown (and sought) Moho density contrast by means of the Fredholm integral equation of the first kind. The solution to the gravimetric inverse problem is formulated using the Moho depths as fixed parameters. These Moho depths are obtained from available seismic crustal model. The result of numerical realization reveals that the gravimetrically determined Moho density contrast globally varies at a large interval between 87 and 923 kg/m3. This range of density contrast very closely agrees with previous estimates of the Moho density contrast based on solving the Vening Meinesz-Moritz inverse problem of isostasy.
Keywords: crust; density contrast; gravity; mantle; Moho
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