Dyke swarms are remnants of large igneous provinces, and are pointers of continental break-up events, as well as indicators for ancient continental reconstructions. These global geodynamic aspects are of crucial significance in tectonics, and with recent developments in high-precision age, dating it has become possible to enter these short-lived magmatic events into a global data base. Every five years, scientists have met to consider new results and potential directions relating to the study of igneous dykes. At the Fifth International Dyke Conference, held in Rovaniemi, Finland in August...