Mamainse Point in Ontario, Canada (IMAGE) Princeton University Caption Paleomagnetic data from volcanic rocks studied by Princeton University scientists at Mamainse Point in Ontario, Canada, are helping researchers understand continental motion during the assembly of the ancient supercontinent Rodinia. Here, Adam Maloof, an assistant professor of geosciences at Princeton, observes these rocks along the edge of Lake Superior as part of the study. Credit Nicholas Swanson-Hysell Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.