An analytical solution to assess the SH seismoelectric response of the vadose zone

Autores
Monachesi, Leonardo Bruno; Zyserman, Fabio Iván; Jouniaux, Laurence
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Fil: Monachesi, Leonardo. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.
Fil: Zyserman, Fabio. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina.
Fil: Jouniaux, Laurence. Université de Strasbourg; Francia
Fil: Monachesi, Leonardo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.
Fil: Zyserman, Fabio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.
We derive an analytical solution of the seismoelectric conversions generated in the vadose zone, when this region is crossed by a pure shear horizontal (SH) wave. Seismoelectric conversions are induced by electrokinetic effects linked to relative motions between fluid and porous media. The considered model assumes a 1D soil constituted by a single layer on top of a half-space in contact at the water table, and a shearing force located at the earth?s surface as the wave source. The water table is an interface expected to induce a seismoelectric interfacial response (IR). The top layer represents a porous rock in which porous space is partially saturated by water and air, while the half-space is completely saturated with water, representing the saturated zone. The analytical expressions for the coseismic fields and the interface responses, both electric and magnetic, are derived by solving Pride?s equations with proper boundary conditions. An approximate analytical expression of the solution is also obtained, which is very simple and applicable in a fairly broad set of situations. Hypothetical scenarios are proposed to study and analyse the dependence of the electromagnetic fields on various parameters of the medium. An analysis of the approximate solution is also made together with a comparison to the exact solution. The main result of the present analysis is that the amplitude of the interface response generated at the water table is found to be proportional to the jump in the electric current density, which in turn depends on the saturation contrast, poro-mechanical and electrical properties of the medium and on the amplitude of the solid displacement produced by the source. This result is in agreement with the one numerically obtained by the authors, which has been published in a recent work. We also predict the existence of an interface response located at the surface, and that the electric interface response is several orders of magnitude bigger than the electric coseismic field, whereas it is the opposite using compressional waves as shown by theoretical and experimental results. This fact should encourage the performance of field and laboratory tests to check the viability of SHTE seismoelectrics as a near surface prospecting/monitoring tool.
-
Materia
Ciencias Exactas y Naturales
Electrical Properties
Hydrogeophysics
Permeability And Porosity
Wave Propagation
Ciencias Exactas y Naturales
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
RID-UNRN (UNRN)
Institución
Universidad Nacional de Río Negro
OAI Identificador
oai:rid.unrn.edu.ar:20.500.12049/5803

id RIDUNRN_588c4d407a665df4f8cf01f2dcfa57d1
oai_identifier_str oai:rid.unrn.edu.ar:20.500.12049/5803
network_acronym_str RIDUNRN
repository_id_str 4369
network_name_str RID-UNRN (UNRN)
spelling An analytical solution to assess the SH seismoelectric response of the vadose zoneMonachesi, Leonardo BrunoZyserman, Fabio IvánJouniaux, LaurenceCiencias Exactas y NaturalesElectrical PropertiesHydrogeophysicsPermeability And PorosityWave PropagationCiencias Exactas y NaturalesFil: Monachesi, Leonardo. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.Fil: Zyserman, Fabio. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina.Fil: Jouniaux, Laurence. Université de Strasbourg; FranciaFil: Monachesi, Leonardo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.Fil: Zyserman, Fabio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.We derive an analytical solution of the seismoelectric conversions generated in the vadose zone, when this region is crossed by a pure shear horizontal (SH) wave. Seismoelectric conversions are induced by electrokinetic effects linked to relative motions between fluid and porous media. The considered model assumes a 1D soil constituted by a single layer on top of a half-space in contact at the water table, and a shearing force located at the earth?s surface as the wave source. The water table is an interface expected to induce a seismoelectric interfacial response (IR). The top layer represents a porous rock in which porous space is partially saturated by water and air, while the half-space is completely saturated with water, representing the saturated zone. The analytical expressions for the coseismic fields and the interface responses, both electric and magnetic, are derived by solving Pride?s equations with proper boundary conditions. An approximate analytical expression of the solution is also obtained, which is very simple and applicable in a fairly broad set of situations. Hypothetical scenarios are proposed to study and analyse the dependence of the electromagnetic fields on various parameters of the medium. An analysis of the approximate solution is also made together with a comparison to the exact solution. The main result of the present analysis is that the amplitude of the interface response generated at the water table is found to be proportional to the jump in the electric current density, which in turn depends on the saturation contrast, poro-mechanical and electrical properties of the medium and on the amplitude of the solid displacement produced by the source. This result is in agreement with the one numerically obtained by the authors, which has been published in a recent work. We also predict the existence of an interface response located at the surface, and that the electric interface response is several orders of magnitude bigger than the electric coseismic field, whereas it is the opposite using compressional waves as shown by theoretical and experimental results. This fact should encourage the performance of field and laboratory tests to check the viability of SHTE seismoelectrics as a near surface prospecting/monitoring tool.-Wiley Blackwell Publishing, Inc2018info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfMonachesi, Leonardo Bruno., Zyserman, Fabio Ivan., Jouniaux, L. (2018) An analytical solution to assess the SH seismoelectric response of the vadose zone. Wiley Blackwell Publishing, Inc; Geophysical Journal International; 213 (3); 1999-20190956-540Xhttp://rid.unrn.edu.ar/handle/20.500.12049/5803https://doi.org/10.1093/gji/ggy101eng213 (3)Geophysical Journal Internationalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/4.0/reponame:RID-UNRN (UNRN)instname:Universidad Nacional de Río Negro2025-09-29T14:29:06Zoai:rid.unrn.edu.ar:20.500.12049/5803instacron:UNRNInstitucionalhttps://rid.unrn.edu.ar/jspui/Universidad públicaNo correspondehttps://rid.unrn.edu.ar/oai/snrdrid@unrn.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:43692025-09-29 14:29:07.008RID-UNRN (UNRN) - Universidad Nacional de Río Negrofalse
dc.title.none.fl_str_mv An analytical solution to assess the SH seismoelectric response of the vadose zone
title An analytical solution to assess the SH seismoelectric response of the vadose zone
spellingShingle An analytical solution to assess the SH seismoelectric response of the vadose zone
Monachesi, Leonardo Bruno
Ciencias Exactas y Naturales
Electrical Properties
Hydrogeophysics
Permeability And Porosity
Wave Propagation
Ciencias Exactas y Naturales
title_short An analytical solution to assess the SH seismoelectric response of the vadose zone
title_full An analytical solution to assess the SH seismoelectric response of the vadose zone
title_fullStr An analytical solution to assess the SH seismoelectric response of the vadose zone
title_full_unstemmed An analytical solution to assess the SH seismoelectric response of the vadose zone
title_sort An analytical solution to assess the SH seismoelectric response of the vadose zone
dc.creator.none.fl_str_mv Monachesi, Leonardo Bruno
Zyserman, Fabio Iván
Jouniaux, Laurence
author Monachesi, Leonardo Bruno
author_facet Monachesi, Leonardo Bruno
Zyserman, Fabio Iván
Jouniaux, Laurence
author_role author
author2 Zyserman, Fabio Iván
Jouniaux, Laurence
author2_role author
author
dc.subject.none.fl_str_mv Ciencias Exactas y Naturales
Electrical Properties
Hydrogeophysics
Permeability And Porosity
Wave Propagation
Ciencias Exactas y Naturales
topic Ciencias Exactas y Naturales
Electrical Properties
Hydrogeophysics
Permeability And Porosity
Wave Propagation
Ciencias Exactas y Naturales
dc.description.none.fl_txt_mv Fil: Monachesi, Leonardo. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.
Fil: Zyserman, Fabio. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina.
Fil: Jouniaux, Laurence. Université de Strasbourg; Francia
Fil: Monachesi, Leonardo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.
Fil: Zyserman, Fabio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.
We derive an analytical solution of the seismoelectric conversions generated in the vadose zone, when this region is crossed by a pure shear horizontal (SH) wave. Seismoelectric conversions are induced by electrokinetic effects linked to relative motions between fluid and porous media. The considered model assumes a 1D soil constituted by a single layer on top of a half-space in contact at the water table, and a shearing force located at the earth?s surface as the wave source. The water table is an interface expected to induce a seismoelectric interfacial response (IR). The top layer represents a porous rock in which porous space is partially saturated by water and air, while the half-space is completely saturated with water, representing the saturated zone. The analytical expressions for the coseismic fields and the interface responses, both electric and magnetic, are derived by solving Pride?s equations with proper boundary conditions. An approximate analytical expression of the solution is also obtained, which is very simple and applicable in a fairly broad set of situations. Hypothetical scenarios are proposed to study and analyse the dependence of the electromagnetic fields on various parameters of the medium. An analysis of the approximate solution is also made together with a comparison to the exact solution. The main result of the present analysis is that the amplitude of the interface response generated at the water table is found to be proportional to the jump in the electric current density, which in turn depends on the saturation contrast, poro-mechanical and electrical properties of the medium and on the amplitude of the solid displacement produced by the source. This result is in agreement with the one numerically obtained by the authors, which has been published in a recent work. We also predict the existence of an interface response located at the surface, and that the electric interface response is several orders of magnitude bigger than the electric coseismic field, whereas it is the opposite using compressional waves as shown by theoretical and experimental results. This fact should encourage the performance of field and laboratory tests to check the viability of SHTE seismoelectrics as a near surface prospecting/monitoring tool.
-
description Fil: Monachesi, Leonardo. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.
publishDate 2018
dc.date.none.fl_str_mv 2018
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv Monachesi, Leonardo Bruno., Zyserman, Fabio Ivan., Jouniaux, L. (2018) An analytical solution to assess the SH seismoelectric response of the vadose zone. Wiley Blackwell Publishing, Inc; Geophysical Journal International; 213 (3); 1999-2019
0956-540X
http://rid.unrn.edu.ar/handle/20.500.12049/5803
https://doi.org/10.1093/gji/ggy101
identifier_str_mv Monachesi, Leonardo Bruno., Zyserman, Fabio Ivan., Jouniaux, L. (2018) An analytical solution to assess the SH seismoelectric response of the vadose zone. Wiley Blackwell Publishing, Inc; Geophysical Journal International; 213 (3); 1999-2019
0956-540X
url http://rid.unrn.edu.ar/handle/20.500.12049/5803
https://doi.org/10.1093/gji/ggy101
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 213 (3)
Geophysical Journal International
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/4.0/
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
dc.source.none.fl_str_mv reponame:RID-UNRN (UNRN)
instname:Universidad Nacional de Río Negro
reponame_str RID-UNRN (UNRN)
collection RID-UNRN (UNRN)
instname_str Universidad Nacional de Río Negro
repository.name.fl_str_mv RID-UNRN (UNRN) - Universidad Nacional de Río Negro
repository.mail.fl_str_mv rid@unrn.edu.ar
_version_ 1844621611083235328
score 12.559606