Turned to Stone (IMAGE) Columbia Climate School Caption An experimental drill core held by coauthor Sandra Snaebjornsdottir is loaded with solidified carbonate, apparently produced by the new process. Credit Kevin Krajick/Lamont-Doherty Earth Observatory Usage Restrictions Credit must be given. 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.