Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/62046
Title: Oblique rift opening revealed by reoccurring magma injection in Central Iceland
Authors: Ruch, J
Wang, T
Xu, W 
Hensch, M
Jónsson, S
Issue Date: 2016
Publisher: Nature Publishing Group
Source: Nature communications, 2016, v. 7 , 12352 How to cite?
Journal: Nature communications 
Abstract: Extension deficit builds up over centuries at divergent plate boundaries and is recurrently removed during rifting events, accompanied by magma intrusions and transient metre-scale deformation. However, information on transient near-field deformation has rarely been captured, hindering progress in understanding rifting mechanisms and evolution. Here we show new evidence of oblique rift opening during a rifting event influenced by pre-existing fractures and two centuries of extension deficit accumulation. This event originated from the Bárarbunga caldera and led to the largest basaltic eruption in Iceland in >200 years. The results show that the opening was initially accompanied by left-lateral shear that ceased with increasing opening. Our results imply that pre-existing fractures play a key role in controlling oblique rift opening at divergent plate boundaries.
URI: http://hdl.handle.net/10397/62046
EISSN: 2041-1723
DOI: 10.1038/ncomms12352
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