Preservation of a Preglacial Landscape Under the Center of the Greenland Ice Sheet
Continental ice sheets typically sculpt landscapes via erosion; under certain conditions, ancient landscapes can be preserved beneath ice and can survive extensive and repeated glaciation. We used concentrations of atmospherically produced cosmogenic beryllium-10, carbon, and nitrogen to show that a...
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American Association for the Advancement of Science
2014
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Online Access: | https://nrl.northumbria.ac.uk/id/eprint/41625/ https://doi.org/10.1126/science.1249047 |
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ftunivnorthumb:oai:nrl.northumbria.ac.uk:41625 2023-05-15T16:26:13+02:00 Preservation of a Preglacial Landscape Under the Center of the Greenland Ice Sheet Bierman, P. R. Corbett, L. B. Graly, Joseph A. Neumann, T. A. Lini, A. Crosby, B. T. Rood, D. H. 2014-04-25 https://nrl.northumbria.ac.uk/id/eprint/41625/ https://doi.org/10.1126/science.1249047 unknown American Association for the Advancement of Science Bierman, P. R., Corbett, L. B., Graly, Joseph A., Neumann, T. A., Lini, A., Crosby, B. T. and Rood, D. H. (2014) Preservation of a Preglacial Landscape Under the Center of the Greenland Ice Sheet. Science, 344 (6182). pp. 402-405. ISSN 0036-8075 F600 Geology F800 Physical and Terrestrial Geographical and Environmental Sciences Article PeerReviewed 2014 ftunivnorthumb https://doi.org/10.1126/science.1249047 2022-09-25T06:11:09Z Continental ice sheets typically sculpt landscapes via erosion; under certain conditions, ancient landscapes can be preserved beneath ice and can survive extensive and repeated glaciation. We used concentrations of atmospherically produced cosmogenic beryllium-10, carbon, and nitrogen to show that ancient soil has been preserved in basal ice for millions of years at the center of the ice sheet at Summit, Greenland. This finding suggests ice sheet stability through the Pleistocene (i.e., the past 2.7 million years). The preservation of this soil implies that the ice has been nonerosive and frozen to the bed for much of that time, that there was no substantial exposure of central Greenland once the ice sheet became fully established, and that preglacial landscapes can remain preserved for long periods under continental ice sheets. Article in Journal/Newspaper Greenland Ice Sheet Northumbria University, Newcastle: Northumbria Research Link (NRL) Greenland Science 344 6182 402 405 |
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Open Polar |
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Northumbria University, Newcastle: Northumbria Research Link (NRL) |
op_collection_id |
ftunivnorthumb |
language |
unknown |
topic |
F600 Geology F800 Physical and Terrestrial Geographical and Environmental Sciences |
spellingShingle |
F600 Geology F800 Physical and Terrestrial Geographical and Environmental Sciences Bierman, P. R. Corbett, L. B. Graly, Joseph A. Neumann, T. A. Lini, A. Crosby, B. T. Rood, D. H. Preservation of a Preglacial Landscape Under the Center of the Greenland Ice Sheet |
topic_facet |
F600 Geology F800 Physical and Terrestrial Geographical and Environmental Sciences |
description |
Continental ice sheets typically sculpt landscapes via erosion; under certain conditions, ancient landscapes can be preserved beneath ice and can survive extensive and repeated glaciation. We used concentrations of atmospherically produced cosmogenic beryllium-10, carbon, and nitrogen to show that ancient soil has been preserved in basal ice for millions of years at the center of the ice sheet at Summit, Greenland. This finding suggests ice sheet stability through the Pleistocene (i.e., the past 2.7 million years). The preservation of this soil implies that the ice has been nonerosive and frozen to the bed for much of that time, that there was no substantial exposure of central Greenland once the ice sheet became fully established, and that preglacial landscapes can remain preserved for long periods under continental ice sheets. |
format |
Article in Journal/Newspaper |
author |
Bierman, P. R. Corbett, L. B. Graly, Joseph A. Neumann, T. A. Lini, A. Crosby, B. T. Rood, D. H. |
author_facet |
Bierman, P. R. Corbett, L. B. Graly, Joseph A. Neumann, T. A. Lini, A. Crosby, B. T. Rood, D. H. |
author_sort |
Bierman, P. R. |
title |
Preservation of a Preglacial Landscape Under the Center of the Greenland Ice Sheet |
title_short |
Preservation of a Preglacial Landscape Under the Center of the Greenland Ice Sheet |
title_full |
Preservation of a Preglacial Landscape Under the Center of the Greenland Ice Sheet |
title_fullStr |
Preservation of a Preglacial Landscape Under the Center of the Greenland Ice Sheet |
title_full_unstemmed |
Preservation of a Preglacial Landscape Under the Center of the Greenland Ice Sheet |
title_sort |
preservation of a preglacial landscape under the center of the greenland ice sheet |
publisher |
American Association for the Advancement of Science |
publishDate |
2014 |
url |
https://nrl.northumbria.ac.uk/id/eprint/41625/ https://doi.org/10.1126/science.1249047 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Ice Sheet |
genre_facet |
Greenland Ice Sheet |
op_relation |
Bierman, P. R., Corbett, L. B., Graly, Joseph A., Neumann, T. A., Lini, A., Crosby, B. T. and Rood, D. H. (2014) Preservation of a Preglacial Landscape Under the Center of the Greenland Ice Sheet. Science, 344 (6182). pp. 402-405. ISSN 0036-8075 |
op_doi |
https://doi.org/10.1126/science.1249047 |
container_title |
Science |
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344 |
container_issue |
6182 |
container_start_page |
402 |
op_container_end_page |
405 |
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1766015107099262976 |