%0 Journal Article
%A Camacho, A.G.
%A Viera, Ricardo
%A Montesinos, F. G.
%A Cuellar, V.
%T A gravimetric 3d global inversion for cavity detection
%D 1994
%@ 0016-8025
%U https://hdl.handle.net/20.500.14352/57467
%X A gravimetric survey, covering a site 200 m square, was carried out in order to locate karstic cavities. After eliminating the regional trend using a polynomial fit, the residual is modelled by least-squares prediction. Correlated signals for several wavelengths are detected. The inversion of these anomalies is performed by a global 3D adjustment using spherical bodies as models. The adjustment is repeated in order to obtain a stable configuration. The results show the probable presence of a system of cavities and galleries. Data collected from boreholes and the subsequent appearance of sink-holes are consistent with the results.
%~