Contrasting structure and style of rifting of the Hofsjökull and Tungnafellsjökull fissure swarms in the Central Iceland Volcanic Zone

Asta Rut Hjartardottir, University of Iceland, Nordic Volcanological Center, Institute of Earth Sciences, Reykjavik, Iceland and Pall Einarsson, Science Institute, University of Iceland, Nordic Volcanological Center, Institute of Earth Sciences, Reykjavik, Iceland