50 Myr of pulsed mafic magmatism in the High Arctic Large Igneous Province

D. Graham Pearson1, David M Dockman2, Larry M Heaman1, Sally A Gibson3 and Chiranjeeb Sarkar4, (1)University of Alberta, Earth and Atmospheric Sciences, Edmonton, AB, Canada, (2)University of Alberta, Earth & Atmospheric Sciences, Edmonton, AB, Canada, (3)University of Cambridge, Earth Sciences, Cambridge, United Kingdom, (4)University of Alberta, Edmonton, AB, Canada