Modelling surface displacement in restless hydrothermal regions: The case of a thermo-poro-elastic inclusion in a poro-elastic half-space

Mantiloni, L. (2021) Modelling surface displacement in restless hydrothermal regions: The case of a thermo-poro-elastic inclusion in a poro-elastic half-space. Il nuovo cimento C, 44 (1). pp. 1-10. ISSN 1826-9885

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Abstract

Hydrothermal regions experience various phenomena, including ground deformation and, in the case of calderas, interaction between deep magmatic processes and shallow aquifers. The present work considers a source model consisting of a disk-shaped thermo-poro-elastic inclusion subject to a sudden change of temperature and pore pressure, embedded in a homogeneous poro-elastic halfspace. We compare semi-analytical solutions for surface displacement with results from four other source models. The displacement components are similar to those of a spherical point-like source for a certain choice of geometric parameters, while they differ from the other models. On the basis of this comparison, we interpret the results of inversions on ground deformation data of the 1982–1984 unrest episode at Campi Flegrei caldera, Italy, where the thermo-poro-elastic source provides the best fit.

Item Type:	Article
Subjects:	500 Scienze naturali e Matematica > 530 Fisica
Depositing User:	Marina Spanti
Date Deposited:	19 Jul 2021 09:53
Last Modified:	19 Jul 2021 09:53
URI:	http://eprints.bice.rm.cnr.it/id/eprint/21287

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