Turned to Stone (image) The Earth Institute at Columbia University Share Print E-Mail 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. Share Print E-Mail 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.