Articles | Volume 13, issue 3
Research article
21 Mar 2022
Research article |  | 21 Mar 2022

Radial anisotropy and S-wave velocity depict the internal to external zone transition within the Variscan orogen (NW Iberia)

Jorge Acevedo, Gabriela Fernández-Viejo, Sergio Llana-Fúnez, Carlos López-Fernández, Javier Olona, and Diego Pérez-Millán

Data sets

GEOCANTABRICA-COSTA Gabriela Fernández Viejo, Jorge Acevedo Sánchez, Sergio Llana Fúnez, Carlos López Fernández, Diego Pérez Millán, and Luis Alberto Pando González

IberArray Institute Earth Sciences "Jaume Almera" CSIC (ICTJA Spain)

Short summary
The NW Iberian Peninsula provides one of the most complete Variscan sections in Europe, showing the transition between a sedimentary domain with folds and thrust and a metamorphic domain with igneous intrusions. By processing the seismic ambient noise recorded by several seismograph networks in this area, new 3-D S-wave velocity and radial anisotropy models were created. These models reveal the limit between the two domains, delineating the core of the large western European Variscan Belt.