A Survivor in Greenland: A Novel Bacterial Species is Found Trapped in 120,000-Year-Old Ice (2 of 3) (IMAGE)

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A Survivor in Greenland: A Novel Bacterial Species is Found Trapped in 120,000-Year-Old Ice (2 of 3)

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

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