Geophysical study of a large landslide affecting the urban area of Albuñuelas (S Spain)

The urban area of Albuñuelas, a small town located to the south of Granada (S Spain), has been developed in terrain affected by a large-scale rotational landslide with very slow rate of movement. Despite this situation, the internal structure of the landslide and how it has evolved to its present st...

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Authors: Mita, M., Galiana Merino, J.J., Garrido, J., Lenti, L., Martino, S., Pappadopoulo, J., Peláez, J.A., Benabdeloued, B.Y.N., Delgado, J.
Format: article
Status:Published version
Publication Date:2023
Country:España
Institution:Universidad de Jaén
Repository:RUJA. Repositorio Institucional de la Producción Científica de la Universidad de Jaén
OAI Identifier:oai:ruja.ujaen.es:10953/6828
Online Access:https://doi.org/10.3390/app132212205
https://hdl.handle.net/10953/6828
Access Level:Open access
Keyword:Landslide
Geological structure
Geophysical prospecting
Ambient noise
HVSR
Array techniques
55
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spelling Geophysical study of a large landslide affecting the urban area of Albuñuelas (S Spain)Mita, M.Galiana Merino, J.J.Garrido, J.Lenti, L.Martino, S.Pappadopoulo, J.Peláez, J.A.Benabdeloued, B.Y.N.Delgado, J.LandslideGeological structureGeophysical prospectingAmbient noiseHVSRArray techniques55The urban area of Albuñuelas, a small town located to the south of Granada (S Spain), has been developed in terrain affected by a large-scale rotational landslide with very slow rate of movement. Despite this situation, the internal structure of the landslide and how it has evolved to its present state has not been analyzed in depth up to now. In this paper, we present the first study performed on this landslide to define its configuration and characteristics. For this purpose, ambient noise single-station and array measurements were carried out along several cross-sections of the landslide. The inversion of the measurements has allowed for the estimation of the soil stratigraphy at each site of measurement. These geophysical results have been constrained by data from a borehole drilled in the zone and from field observations of the local geology, allowing for the reduction in uncertainties in the results. A geological–geophysical model of the landslide has been built from these data, showing that the landslide thicknesses is greater than 50 m in its central parts and above 60 m in the upper ones. This model reveals that the evolution of the landslide was complex, with several dislodged elements (blocks) that moved in sequence (retrogression) and were partially eroded in order to explain present morphology. The future evolution of this landslide will be controlled by the composition of the materials surveyed along the foot of the valley, being the western part where there are more erodible materials according to the obtained results.This study was partially funded by the EU (FEDER), by the Secretaría de Estado de Investigación, Desarrollo e Innovación of the Spanish government (projects CGL2015-65602-R, CGL2016-77688-R), by the Spanish Investigation Agency (project PID2022-136678NB-I00 AEI/FEDER), by the Conselleria de Innovación, Universidades, Ciencia y Sociedad Digital de la Generalitat Valenciana (project CIAICO/2022/038), and by the Junta de Andalucía (project GGI3002IDIN).MDPI202620262023info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://doi.org/10.3390/app132212205https://hdl.handle.net/10953/6828reponame:RUJA. Repositorio Institucional de la Producción Científica de la Universidad de Jaéninstname:Universidad de JaénInglésApplied Sciences-BaselCC0 1.0 Universalhttp://creativecommons.org/publicdomain/zero/1.0/info:eu-repo/semantics/openAccessoai:ruja.ujaen.es:10953/68282026-06-24T12:41:07Z
dc.title.none.fl_str_mv Geophysical study of a large landslide affecting the urban area of Albuñuelas (S Spain)
title Geophysical study of a large landslide affecting the urban area of Albuñuelas (S Spain)
spellingShingle Geophysical study of a large landslide affecting the urban area of Albuñuelas (S Spain)
Mita, M.
Landslide
Geological structure
Geophysical prospecting
Ambient noise
HVSR
Array techniques
55
title_short Geophysical study of a large landslide affecting the urban area of Albuñuelas (S Spain)
title_full Geophysical study of a large landslide affecting the urban area of Albuñuelas (S Spain)
title_fullStr Geophysical study of a large landslide affecting the urban area of Albuñuelas (S Spain)
title_full_unstemmed Geophysical study of a large landslide affecting the urban area of Albuñuelas (S Spain)
title_sort Geophysical study of a large landslide affecting the urban area of Albuñuelas (S Spain)
dc.creator.none.fl_str_mv Mita, M.
Galiana Merino, J.J.
Garrido, J.
Lenti, L.
Martino, S.
Pappadopoulo, J.
Peláez, J.A.
Benabdeloued, B.Y.N.
Delgado, J.
author Mita, M.
author_facet Mita, M.
Galiana Merino, J.J.
Garrido, J.
Lenti, L.
Martino, S.
Pappadopoulo, J.
Peláez, J.A.
Benabdeloued, B.Y.N.
Delgado, J.
author_role author
author2 Galiana Merino, J.J.
Garrido, J.
Lenti, L.
Martino, S.
Pappadopoulo, J.
Peláez, J.A.
Benabdeloued, B.Y.N.
Delgado, J.
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Landslide
Geological structure
Geophysical prospecting
Ambient noise
HVSR
Array techniques
55
topic Landslide
Geological structure
Geophysical prospecting
Ambient noise
HVSR
Array techniques
55
description The urban area of Albuñuelas, a small town located to the south of Granada (S Spain), has been developed in terrain affected by a large-scale rotational landslide with very slow rate of movement. Despite this situation, the internal structure of the landslide and how it has evolved to its present state has not been analyzed in depth up to now. In this paper, we present the first study performed on this landslide to define its configuration and characteristics. For this purpose, ambient noise single-station and array measurements were carried out along several cross-sections of the landslide. The inversion of the measurements has allowed for the estimation of the soil stratigraphy at each site of measurement. These geophysical results have been constrained by data from a borehole drilled in the zone and from field observations of the local geology, allowing for the reduction in uncertainties in the results. A geological–geophysical model of the landslide has been built from these data, showing that the landslide thicknesses is greater than 50 m in its central parts and above 60 m in the upper ones. This model reveals that the evolution of the landslide was complex, with several dislodged elements (blocks) that moved in sequence (retrogression) and were partially eroded in order to explain present morphology. The future evolution of this landslide will be controlled by the composition of the materials surveyed along the foot of the valley, being the western part where there are more erodible materials according to the obtained results.
publishDate 2023
dc.date.none.fl_str_mv 2023
2026
2026
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://doi.org/10.3390/app132212205
https://hdl.handle.net/10953/6828
url https://doi.org/10.3390/app132212205
https://hdl.handle.net/10953/6828
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Applied Sciences-Basel
dc.rights.none.fl_str_mv CC0 1.0 Universal
http://creativecommons.org/publicdomain/zero/1.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv CC0 1.0 Universal
http://creativecommons.org/publicdomain/zero/1.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:RUJA. Repositorio Institucional de la Producción Científica de la Universidad de Jaén
instname:Universidad de Jaén
instname_str Universidad de Jaén
reponame_str RUJA. Repositorio Institucional de la Producción Científica de la Universidad de Jaén
collection RUJA. Repositorio Institucional de la Producción Científica de la Universidad de Jaén
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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