The afternoon continued by looking at the Onaping Formation breccias that overlie the melt sheet and then the post-impact sedimentary fill. Lots of cool rocks! #SudburyImpact #ImpactEarth

After a morning of lectures and hand sample exercises, we headed out in to field for an introduction to Sudbury #geology

#SudburyImpact #impactcraters #impactearth @westernu.ca