%0 Journal Article %T Great challenges in structural geology and tectonics %A Agust Gudmundsson %J Frontiers in Earth Science %D 2013 %I Frontiers Media %R 10.3389/feart.2013.00002 %K plate tectonics %K tectonic stresses %K subduction zones %K faults %K earthquakes %K dykes %K volcanic eruptions %K energy sources %U http://www.frontiersin.org/Journal/10.3389/feart.2013.00002/full