The Campo de Dalias GNSS Network Unveils the Interaction between Roll-Back and Indentation Tectonics in the Gibraltar Arc
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Título: | The Campo de Dalias GNSS Network Unveils the Interaction between Roll-Back and Indentation Tectonics in the Gibraltar Arc |
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Autor/es: | Galindo Zaldívar, Jesús | Gil Cruz, Antonio José | Tendero-Salmerón, Víctor | Borque Arancón, María Jesús | Ercilla, Gemma | González-Castillo, Lourdes | Sánchez Alzola, Alberto | Lacy, María C. | Estrada, Ferran | Avilés, Manuel | Alfaro García, Pedro | Madarieta-Txurruka, Asier | Chacón, Fernando |
Grupo/s de investigación o GITE: | Evolución Geodinámica de la Cordillera Bética Oriental y de la Plataforma Marina de Alicante |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Ciencias de la Tierra y del Medio Ambiente |
Palabras clave: | GNSS network | Active fold and fault interaction | Roll-back | Indentation tectonics | Gibraltar Arc |
Área/s de conocimiento: | Geodinámica Interna |
Fecha de publicación: | 9-mar-2022 |
Editor: | MDPI |
Cita bibliográfica: | Galindo-Zaldivar J, Gil AJ, Tendero-Salmerón V, Borque MJ, Ercilla G, González-Castillo L, Sánchez-Alzola A, Lacy MC, Estrada F, Avilés M, Alfaro P, Madarieta-Txurruka A, Chacón F. The Campo de Dalias GNSS Network Unveils the Interaction between Roll-Back and Indentation Tectonics in the Gibraltar Arc. Sensors. 2022; 22(6):2128. https://doi.org/10.3390/s22062128 |
Resumen: | The Gibraltar Arc includes the Betic and Rif Cordilleras surrounding the Alboran Sea; it is formed at the northwest–southeast Eurasia–Nubia convergent plate boundary in the westernmost Mediterranean. Since 2006, the Campo de Dalias GNSS network has monitored active tectonic deformation of the most seismically active area on the north coast of the Alboran Sea. Our results show that the residual deformation rates with respect to Eurasia range from 1.7 to 3.0 mm/year; roughly homogenous west-southwestward displacements of the northern sites occur, while the southern sites evidence irregular displacements towards the west and northwest. This deformation pattern supports simultaneous east-northeast–west-southwest extension, accommodated by normal and oblique faults, and north-northwest–south-southeast shortening that develops east-northeast–west-southwest folds. Moreover, the GNSS results point to dextral creep of the main northwest–southeast Balanegra Fault. These GNNS results thus reveal, for the first time, present-day interaction of the roll-back tectonics of the Rif–Gibraltar–Betic slab in the western part of the Gibraltar Arc with the indentation tectonics affecting the eastern and southern areas, providing new insights for improving tectonic models of arcuate orogens. |
Patrocinador/es: | Junta de Andalucia; European Regional Development Fund; grant numbers: AGORA P18-RT-3275, PAPEL B-RNM-301-UGR18. Programa Operativo FEDER-Andalucia 2014–2020 Project ref. 1263446; University of Jaén; CEACTEMA; grant number: POAIUJA 21/22. Junta de Andalucía (Andalusian Board); grant numbers: RNM-148, RNM-282, RNM-370. V.T.S. was supported by the FPU PhD grant (16/04038). |
URI: | http://hdl.handle.net/10045/122205 |
ISSN: | 1424-8220 |
DOI: | 10.3390/s22062128 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.3390/s22062128 |
Aparece en las colecciones: | INV - GEODIN - Artículos de Revistas |
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