GSA TODAY (IMAGE) Geological Society of America Caption The December GSA TODAY science article, "Unique geologic insights from “non-unique” gravity and magnetic interpretation,” is now online at http://www.geosociety.org/gsatoday/. The article is open-access. Credit The Geological Society of America Usage Restrictions Educational and non-commercial only 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.