@misc{10481/108091,
year = {2025},
month = {11},
url = {https://hdl.handle.net/10481/108091},
abstract = {We present a new lithosphere-asthenosphere boundary (LAB) depth map of Iberia and adjacent areas built using 
∼34500 Sp receiver functions from 998 broadband seismic stations, alongside an updated Ps-derived crustal thickness map of Iberia. We found an overall shallow LAB, with a minimum depth of 70-80km in areas of Cenozoic extension such as the eastern coast of Iberia and the Gibraltar-Alboran subduction back-arc, as well as in the Massif Central and the tectonically stable northwest of Iberia. LAB depths from 90km to 110km were only found within the areas of thickened crust in north-central Iberia and bordering the Gulf of Cádiz. The much deeper (150-180km) oceanic LAB of the Gibraltar-Alboran slab was also imaged in the western Gibraltar Arc. Sublithospheric negative-velocity gradients (NVG) in the 110-140km depth range are widespread in the back-arc of the Gibraltar-Alboran subduction system and in north-central Iberia, picturing a layered asthenospheric structure. In the Gibraltar Arc, the detachment of the slab through the subduction-transform edge propagator fault in the eastern Betics seems linked to the formation of the NVG, which are limited to the north by this structure.},
organization = {MCIN/AEI/10.13039/501100011033 – (PID2019-109608GB-I00)},
organization = {MCIN/AEI/10.13039/501100011033 – European Social Fund – (PRE2020-092556)},
publisher = {Elsevier},
keywords = {receiver functions},
keywords = {Lithosphere-asthenosphere boundary},
keywords = {Asthenosphere},
title = {Imaging the seismic LAB and deeper asthenospheric low-velocity layers in the Ibero-Maghrebian region},
doi = {10.1016/j.gsf.2025.102210},
author = {Parera Portell, Joan Antoni and Mancilla Pérez, Flor de Lis and Morales, J. and Yuan, Xiaohui and Heit, Benjamin and Diaz, J.},
}