The Current Limits of Resolution for Surface Wave Tomography in North America.
Structure and Evolution of the Himalaya-Tibet Orogenic Belt. J., Courtillot, V., Tapponier, P., et al., 1984. On the Computations of the Effect of the Attraction of the Mountain Masses as Disturbing the Apparent Astronomical Latitude of Stations in Geodetic Surveys. Our results reveal that the non-isostatic correction still cannot fully describe mechanisms affecting the Moho geometry along the convergent continent-tocontinent tectonic plate boundaries occurring beneath Himalayas despite an overall good performance of the applied method.Īiry, G. The existing discrepancies between the isostatic and seismic models are finally modeled by applying the non-isostatic correction, which accounts for the unmodelled mantle density heterogeneities and other geodynamic processes, which are not taken into account in classical isostatic models.
The application of this correction improves the agreement between the isostatic and seismic Moho models. The estimated VMM Moho depths are then corrected for the sediment density contrast. The Vening Meinesz-Moritz (VMM) inverse problem of isostasy is utilized to determine the isostatic Moho depths. In this study, we estimate the differences between these two models in central Eurasia. The results of global and regional studies often show significant disagreement between the Moho depths determined using seismic and isostatic models.