Geodynamo Drilling (IMAGE) Michigan Technological University Caption Aleksey Smirnov drills into an outcrop in Australia's Widgiemooltha dike swarm. Credit Aleksey Smirnov, Michigan Tech Usage Restrictions please credit as above 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.