Juergen Schieber and Mudflume (IMAGE) Indiana University Caption IU Bloomington geologist Juergen Schieber inspects a moving mud formation at the base of a mud "race track." Credit Indiana University 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.