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00925njm 22002777a 4500 dc Camacho, A.G. author Viera, Ricardo author González Montesinos, Fuensanta author Cuellar, V. author 1994 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. 0016-8025 10.1111/j.1365-2478.1994.tb00201.x https://hdl.handle.net/20.500.14352/57467 http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2478.1994.tb00201.x/pdf http://www.wiley.com/ A gravimetric 3d global inversion for cavity detection