TOPOGRAPHY EFFECTS ON THE DISPLACEMENTS AND GRAVITY CHANGES DUE TO MAGMA INTRUSION

Year, pages: 2002, 215 - 221

The paper describes a method for including topographic effects in a thermo-visco-elastic model. An approximate methodology for the consideration of topography in the computation of thermo-viscoelastic displacement and gravity changes was used. It gave us a relatively general and simple solution useful for solving the inverse problem. Our results show that for volcanic areas with an important relief, the perturbation of the thermo-viscoelastic solution (deformation and total gravity anomaly) due to topography can be quite significant. In consequence, neglect of topographic effects can give a rise to significant errors in the estimation of surface displacements and gravity changes, and therefore in the estimation of the intrusion characteristics obtained solving the inverse problem.

Charco, M., Brimich, L., Fernandez, J. 2002. TOPOGRAPHY EFFECTS ON THE DISPLACEMENTS AND GRAVITY CHANGES DUE TO MAGMA INTRUSION. In Geologica Carpathica, vol. 53, no.4, pp. 215-221. 1335-0552.

Charco, M., Brimich, L., Fernandez, J. (2002). TOPOGRAPHY EFFECTS ON THE DISPLACEMENTS AND GRAVITY CHANGES DUE TO MAGMA INTRUSION. Geologica Carpathica, 53(4), 215-221. 1335-0552.