Building Icelandic Igneous Crust by Repeated Melt Injections

• Published in: Journal of Geophysical Research: Solid Earth
• Main Authors: Greenfield, Tim, White, R. S.
• Format: Article in Journal/Newspaper
• Language: English
• Published: AGU 2015
• Subjects: 02 - Geodynamics; Geophysics and Tectonics; Askja; Iceland
• Online Access: http://eprints.esc.cam.ac.uk/3327/; http://eprints.esc.cam.ac.uk/3327/1/jgrb51360-fig-0001.png; http://eprints.esc.cam.ac.uk/3327/2/jgrb51360.pdf; http://eprints.esc.cam.ac.uk/3327/3/jgrb51360-sup-0002-s02.xls; http://eprints.esc.cam.ac.uk/3327/4/jgrb51360-sup-0001-s01.pdf; http://onlinelibrary.wiley.com/wol1/doi/10.1002/2015JB012009/abstract; https://doi.org/10.1002/2015JB012009

Observations of microseismicity provide a powerful tool for mapping the movement of melt in the crust. Here we record remarkable sequences of earthquakes 20 km below the surface in the normally ductile crust in the vicinity of Askja Volcano, in northeast Iceland. The earthquakes occur in swarms cons...