Robustness analysis in forward modelling gravity data in crustal/lithospheric studies

Abstract

The robustness of the gravimetric forward modelling is investigated by applying
the harmonic inversion procedure at the input which is the difference of the calculated
and measured surface gravity. The gravity data are taken from two profiles in
the Carpathian-Pannonian Basin region. The result of the inversion are density models
obtained from the original two-layer models with various horizontal boundary depth and
density contrast. The deformation of the originally planar boundary is the measure of
the mismatch between calculated and measured data. The calculated deformation has
reached up to tens of kilometers and thus the uncertainties in determining the geometry
of disturbing bodies by the forward modelling are substantial.