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Three scientists extracting ice core samples.

Date Taken:

December 16, 2017

Photograph By:

Dr. Jaakko Putkonen

License Type:

Creative Commons CC BY-NC-ND 4.0.

Researchers working under the direction of geologist Jaakko Putkonen recover two-million-year-old ice, containing a trove of pollen, dust and, possibly, DNA. Teammates Greg Balco, Grant Boeckman, and Marie Bergelin inspect an ice core recently pulled from the ground. Read more about this work in The Antarctic Sun.

Associated Keywords

CC BY-NC-ND 4.0., Creative Commons, Geology, Ice Core, Ice Drilling, NSF, Research, Rock, Valley

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This photo is in the public domain.

Photos whose copyright has expired or were taken by government employees as part of their job duties are considered to be in the public domain. Public domain works are not subject to copyright laws. Anyone may download these photos and use them freely, even for commercial purposes.

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This photo is covered by a Creative Commons license. Please see the Usage and Submissions page for more information. Use of this photo requires the following:

(1.) The user must give appropriate credit to the photographer and the National Science Foundation (NSF) and provide a link to the Creative Commons license. (2.) Use of the photo must be for non-commercial purposes only. (3.) No derivative works may be made with the original photo without the explicit permission of the photographer.

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