Propagation and arrest of dikes under topography: Models applied to the 2014 Bardarbunga (Iceland) rifting event

• Published in: Geophysical Research Letters
• Main Authors: Urbani, S., Acocella, V., Rivalta, E., Corbi, F.
• Other Authors: Géosciences Montpellier, Institut national des sciences de l'Univers (INSU - CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA)
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2017
• Subjects: rifting event; dike propagation; topography; rigidity; stress gradient; Bardarbunga; [SDU]Sciences of the Universe [physics]; Iceland
• Online Access: https://hal-insu.archives-ouvertes.fr/insu-03661349; https://hal-insu.archives-ouvertes.fr/insu-03661349/document; https://hal-insu.archives-ouvertes.fr/insu-03661349/file/Geophysical%20Research%20Letters%20-%202017%20-%20Urbani%20-%20Propagation%20and%20arrest%20of%20dikes%20under%20topography%20Models%20applied%20to%20the%202014.pdf; https://doi.org/10.1002/2017GL073130

International audience Dikes along rift zones propagate laterally downslope for tens of kilometers, often becoming arrested before topographic reliefs. We use analogue and numerical models to test the conditions controlling the lateral propagation and arrest of dikes, exploring the presence of a slo...