A Survivor in Greenland: A Novel Bacterial Species is Found Trapped in 120,000-Year-Old Ice (2 of 3) (image) Penn State Share Print E-Mail Caption Extruding a core: Scientists extrude the core from its barrel with the utmost care. Any butyl acetate on the core surface is carefully cleaned off before sawing the ice into 2 m sections. The cloudy layers clearly visible in this 6 m core section were formed when dust fell onto the ice sheet and was entrained in the ice. Credit Credit: Mark Twickler, University of New Hampshire/National Oceanic and Atmospheric Administration Paleoclimatology Program/Department of Commerce -- Note: Access to ice-core samples was provided by the National Science Foundation Usage Restrictions The credit line must be published along with the image. 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.