Geophysical Imaging of the Critical Zone along the Eastern Betic Shear Zone (EBSZ), SE Iberian Peninsula
The critical zone (CZ) represents the most-shallow subsurface, where the bio-, hydro-, and geospheres interact with anthropogenic activity. To characterize the thickness and lateral variations of the CZ, here we focus on the Eastern Betic Shear Zone (EBSZ), one of the most tectonically active region...
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| Format: | Article |
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MDPI AG
2022-03-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/7/3398 |
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| author | Handoyo Handoyo Juan Alcalde Irene DeFelipe Imma Palomeras Raquel Martín-Banda Julián García-Mayordomo David Martí José J. Martínez-Díaz Juan Miguel Insua-Arévalo Teresa Teixidó Ignacio Marzán Ramon Carbonell |
| author_facet | Handoyo Handoyo Juan Alcalde Irene DeFelipe Imma Palomeras Raquel Martín-Banda Julián García-Mayordomo David Martí José J. Martínez-Díaz Juan Miguel Insua-Arévalo Teresa Teixidó Ignacio Marzán Ramon Carbonell |
| author_sort | Handoyo Handoyo |
| collection | DOAJ |
| description | The critical zone (CZ) represents the most-shallow subsurface, where the bio-, hydro-, and geospheres interact with anthropogenic activity. To characterize the thickness and lateral variations of the CZ, here we focus on the Eastern Betic Shear Zone (EBSZ), one of the most tectonically active regions in the Iberian Peninsula. Within the EBSZ, the Guadalentín Depression is a highly populated area with intensive agricultural activity, where the characterization of the CZ would provide valuable assets for land use management and seismic hazard assessments. To achieve this, we have conducted an interdisciplinary geophysical study along the eastern border of the Guadalentín Depression to characterize the CZ and the architecture of the shallow subsurface. The datasets used include Electrical Resistivity Tomography (ERT), first-arrival travel time seismic tomography, and multichannel analysis of surface waves (MASW). The geophysical datasets combined help to constrain the high-resolution structure of the subsurface and image active fault systems along four transects. The resulting geophysical models have allowed us to interpret the first ~150 m of the subsurface and has revealed: (i) the variable thickness of the CZ; (ii) the CZ relationship between the fault zone and topographic slope; and (iii) the differences in CZ thickness associated with the geological units. Our results provide a method for studying the shallow subsurface of active faults, complementing previous geological models based on paleo-seismological trenches, and can be used to improve the CZ assessment of tectonically active regions. |
| first_indexed | 2024-03-09T12:08:50Z |
| format | Article |
| id | doaj.art-93ecf1b35115410f9b0943eb3ea07649 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T12:08:50Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-93ecf1b35115410f9b0943eb3ea076492023-11-30T22:55:11ZengMDPI AGApplied Sciences2076-34172022-03-01127339810.3390/app12073398Geophysical Imaging of the Critical Zone along the Eastern Betic Shear Zone (EBSZ), SE Iberian PeninsulaHandoyo Handoyo0Juan Alcalde1Irene DeFelipe2Imma Palomeras3Raquel Martín-Banda4Julián García-Mayordomo5David Martí6José J. Martínez-Díaz7Juan Miguel Insua-Arévalo8Teresa Teixidó9Ignacio Marzán10Ramon Carbonell11Geosciences Barcelona (GEO3BCN, CSIC), 08028 Barcelona, SpainGeosciences Barcelona (GEO3BCN, CSIC), 08028 Barcelona, SpainDepartamento de Geología, Universidad de Salamanca, 37008 Salamanca, SpainDepartamento de Geología, Universidad de Salamanca, 37008 Salamanca, SpainInstituto Geológico y Minero de España (IGME-CSIC), 28003 Madrid, SpainInstituto Geológico y Minero de España (IGME-CSIC), 28003 Madrid, SpainLithica SCCL, Santa Coloma de Farners, 17430 Girona, SpainDepartment of Geodynamics, Stratigraphy and Paleontology, Universidad Complutense de Madrid, 28040 Madrid, SpainDepartment of Geodynamics, Stratigraphy and Paleontology, Universidad Complutense de Madrid, 28040 Madrid, SpainInstituto Andaluz de Geofísica y Prevención de Desastres Sísmicos, Universidad de Granada, 52005 Granada, SpainInstituto Geológico y Minero de España (IGME-CSIC), 28003 Madrid, SpainGeosciences Barcelona (GEO3BCN, CSIC), 08028 Barcelona, SpainThe critical zone (CZ) represents the most-shallow subsurface, where the bio-, hydro-, and geospheres interact with anthropogenic activity. To characterize the thickness and lateral variations of the CZ, here we focus on the Eastern Betic Shear Zone (EBSZ), one of the most tectonically active regions in the Iberian Peninsula. Within the EBSZ, the Guadalentín Depression is a highly populated area with intensive agricultural activity, where the characterization of the CZ would provide valuable assets for land use management and seismic hazard assessments. To achieve this, we have conducted an interdisciplinary geophysical study along the eastern border of the Guadalentín Depression to characterize the CZ and the architecture of the shallow subsurface. The datasets used include Electrical Resistivity Tomography (ERT), first-arrival travel time seismic tomography, and multichannel analysis of surface waves (MASW). The geophysical datasets combined help to constrain the high-resolution structure of the subsurface and image active fault systems along four transects. The resulting geophysical models have allowed us to interpret the first ~150 m of the subsurface and has revealed: (i) the variable thickness of the CZ; (ii) the CZ relationship between the fault zone and topographic slope; and (iii) the differences in CZ thickness associated with the geological units. Our results provide a method for studying the shallow subsurface of active faults, complementing previous geological models based on paleo-seismological trenches, and can be used to improve the CZ assessment of tectonically active regions.https://www.mdpi.com/2076-3417/12/7/3398critical zone (CZ)ERTfaultMASWtomography |
| spellingShingle | Handoyo Handoyo Juan Alcalde Irene DeFelipe Imma Palomeras Raquel Martín-Banda Julián García-Mayordomo David Martí José J. Martínez-Díaz Juan Miguel Insua-Arévalo Teresa Teixidó Ignacio Marzán Ramon Carbonell Geophysical Imaging of the Critical Zone along the Eastern Betic Shear Zone (EBSZ), SE Iberian Peninsula Applied Sciences critical zone (CZ) ERT fault MASW tomography |
| title | Geophysical Imaging of the Critical Zone along the Eastern Betic Shear Zone (EBSZ), SE Iberian Peninsula |
| title_full | Geophysical Imaging of the Critical Zone along the Eastern Betic Shear Zone (EBSZ), SE Iberian Peninsula |
| title_fullStr | Geophysical Imaging of the Critical Zone along the Eastern Betic Shear Zone (EBSZ), SE Iberian Peninsula |
| title_full_unstemmed | Geophysical Imaging of the Critical Zone along the Eastern Betic Shear Zone (EBSZ), SE Iberian Peninsula |
| title_short | Geophysical Imaging of the Critical Zone along the Eastern Betic Shear Zone (EBSZ), SE Iberian Peninsula |
| title_sort | geophysical imaging of the critical zone along the eastern betic shear zone ebsz se iberian peninsula |
| topic | critical zone (CZ) ERT fault MASW tomography |
| url | https://www.mdpi.com/2076-3417/12/7/3398 |
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