False Color 4 with Scale (IMAGE) University of Exeter Caption Pioneering new research has helped geologists solve a long-standing puzzle that could help pinpoint new, untapped concentrations of some the most valuable rare earth deposits. Credit Michael Anenburg, ANU. Usage Restrictions Credit: Michael Anenburg, ANU. 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.