RT Journal Article
T1 Constraints for the recent tectonics of the El Salvador Fault Zone, Central America Volcanic Arc, from morphotectonic analysis
T2 Constraints for the recent tectonics of the El Salvador Fault Zone, Central America Volcanic Arc, from morphotectonic analysis
A1 Alonso Henar, Jorge
A1 Álvarez Gómez, José Antonio
A1 Martínez Díaz, José Jesús
AB We have used hypsometric analysis to improve our understanding of the current tectonic deformation and structure of El Salvador Fault Zone; a N90°E oriented strike-slip fault zone that extends 150 km through El Salvador, Central America. Our results indicate an important amount of transtensive strain along this fault zone, providing new data to understand the tectonic evolution of the Salvadorian volcanic arc. We have defined kilometric scale tectonic blocks and its relative vertical movements, length of segments with homogeneous vertical motions and lateral relay of active structures. We have identified and quantified slip-rate variations along-strike of the El Triunfo fault within El Salvador Fault Zone, ranging from 4.6 mm/year in its central parts to 1 mm/year towards the tips of the fault. This study supports the hypothesis of a recent rotation in the maximum shortening direction, and the accommodation of the current deformation through the reactivation of pre-existing structures inherited from a previous tectonic regime.
PB Elsevier
SN 0040-1951
YR 2014
FD 2014
LK https://hdl.handle.net/20.500.14352/100505
UL https://hdl.handle.net/20.500.14352/100505
LA eng
NO Alonso-Henar, Jorge, et al. «Constraints for the Recent Tectonics of the El Salvador Fault Zone, Central America Volcanic Arc, from Morphotectonic Analysis». Tectonophysics, vol. 623, junio de 2014, pp. 1-13. https://doi.org/10.1016/j.tecto.2014.03.012.
DS Docta Complutense
RD 18 abr 2025