RT journal article
T1 The Campo de Dalias GNSS Network Unveils the Interaction between Roll-Back and Indentation Tectonics in the Gibraltar Arc
A1 Galindo-Zaldivar, Jesús
A1 Gil, Antonio J.
A1 Tendero-Salmerón, Víctor
A1 Borque, María J.
A1 Ercilla, Gemma
A1 González-Castillo, Lourdes
A1 Sánchez Alzola, Alberto
A1 Lacy, María C.
A1 Estrada, Ferran
A1 Avilés, Manuel
A1 Alfaro, Pedro
A1 Madarieta-Txurruka, Asier
A1 Chacón, Fernando
A2 Estadística e Investigación Operativa
K1 GNSS network
K1 active fold and fault interaction
K1 roll-back
K1 indentation tectonics
K1 Gibraltar Arc
AB The Gibraltar Arc includes the Betic and Rif Cordilleras surrounding the Alboran Sea; it isformed at the northwest–southeast Eurasia–Nubia convergent plate boundary in the westernmostMediterranean. Since 2006, the Campo de Dalias GNSS network has monitored active tectonicdeformation of the most seismically active area on the north coast of the Alboran Sea. Our results showthat the residual deformation rates with respect to Eurasia range from 1.7 to 3.0 mm/year; roughlyhomogenous west-southwestward displacements of the northern sites occur, while the southern sitesevidence irregular displacements towards the west and northwest. This deformation pattern supportssimultaneous 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 ofthe Rif–Gibraltar–Betic slab in the western part of the Gibraltar Arc with the indentation tectonicsaffecting the eastern and southern areas, providing new insights for improving tectonic models ofarcuate orogens.
PB MDPI
SN 1424-8220
YR 2022
FD 2022-03
LK http://hdl.handle.net/10498/26806
UL http://hdl.handle.net/10498/26806
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 08-nov-2026