81Kr dating of 1 kg Antarctic ice
Abstract Recovering earth’s climate history from ice cores requires reliable dating of the ice. 81Kr is ideal for radiometric dating up to more than one million years, but the isotope is so rare that it has long been a challenge to apply 81Kr dating on ice cores where sample size is limited. Here, w...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-05-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-025-59264-6 |
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| author | F. Ritterbusch J. S. Wang X. Feng S. Shackleton M. Bender E. Brook J. Higgins Z.-H. Jia W. Jiang Z.-T. Lu J. P. Severinghaus L.-T. Sun G.-M. Yang L. Zhao |
| author_facet | F. Ritterbusch J. S. Wang X. Feng S. Shackleton M. Bender E. Brook J. Higgins Z.-H. Jia W. Jiang Z.-T. Lu J. P. Severinghaus L.-T. Sun G.-M. Yang L. Zhao |
| author_sort | F. Ritterbusch |
| collection | DOAJ |
| description | Abstract Recovering earth’s climate history from ice cores requires reliable dating of the ice. 81Kr is ideal for radiometric dating up to more than one million years, but the isotope is so rare that it has long been a challenge to apply 81Kr dating on ice cores where sample size is limited. Here, we show 81Kr dating of 1-kg ice-core samples from Taylor Glacier, Antarctica. This is made possible by an advance in 81Kr detection with an all-optical realization of Atom Trap Trace Analysis. The achieved sample-size reduction facilitates 81Kr dating of basal ice-core sections with direct implications for open questions in paleoclimatology, such as the evolution of glaciers on the Tibetan Plateau or the stability of the Greenland and West-Antarctic ice sheets. |
| format | Article |
| id | doaj-art-acd0213fd80049b38f2392626b50dbbb |
| institution | OA Journals |
| issn | 2041-1723 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-acd0213fd80049b38f2392626b50dbbb2025-08-20T01:59:56ZengNature PortfolioNature Communications2041-17232025-05-011611910.1038/s41467-025-59264-681Kr dating of 1 kg Antarctic iceF. Ritterbusch0J. S. Wang1X. Feng2S. Shackleton3M. Bender4E. Brook5J. Higgins6Z.-H. Jia7W. Jiang8Z.-T. Lu9J. P. Severinghaus10L.-T. Sun11G.-M. Yang12L. Zhao13Hefei National Research Center for Physical Sciences at the Microscale, School of Physical Sciences, University of Science and Technology of ChinaHefei National Laboratory, University of Science and Technology of ChinaHefei National Research Center for Physical Sciences at the Microscale, School of Physical Sciences, University of Science and Technology of ChinaWoods Hole Oceanographic InstitutionDepartment of Geosciences, Princeton UniversityCollege of Earth, Ocean, and Atmospheric Sciences, Oregon State UniversityDepartment of Geosciences, Princeton UniversityInstitute of Modern Physics, Chinese Academy of SciencesHefei National Research Center for Physical Sciences at the Microscale, School of Physical Sciences, University of Science and Technology of ChinaHefei National Research Center for Physical Sciences at the Microscale, School of Physical Sciences, University of Science and Technology of ChinaScripps Institution of Oceanography (SIO), University of California, San DiegoInstitute of Modern Physics, Chinese Academy of SciencesHefei National Laboratory, University of Science and Technology of ChinaHefei National Laboratory, University of Science and Technology of ChinaAbstract Recovering earth’s climate history from ice cores requires reliable dating of the ice. 81Kr is ideal for radiometric dating up to more than one million years, but the isotope is so rare that it has long been a challenge to apply 81Kr dating on ice cores where sample size is limited. Here, we show 81Kr dating of 1-kg ice-core samples from Taylor Glacier, Antarctica. This is made possible by an advance in 81Kr detection with an all-optical realization of Atom Trap Trace Analysis. The achieved sample-size reduction facilitates 81Kr dating of basal ice-core sections with direct implications for open questions in paleoclimatology, such as the evolution of glaciers on the Tibetan Plateau or the stability of the Greenland and West-Antarctic ice sheets.https://doi.org/10.1038/s41467-025-59264-6 |
| spellingShingle | F. Ritterbusch J. S. Wang X. Feng S. Shackleton M. Bender E. Brook J. Higgins Z.-H. Jia W. Jiang Z.-T. Lu J. P. Severinghaus L.-T. Sun G.-M. Yang L. Zhao 81Kr dating of 1 kg Antarctic ice Nature Communications |
| title | 81Kr dating of 1 kg Antarctic ice |
| title_full | 81Kr dating of 1 kg Antarctic ice |
| title_fullStr | 81Kr dating of 1 kg Antarctic ice |
| title_full_unstemmed | 81Kr dating of 1 kg Antarctic ice |
| title_short | 81Kr dating of 1 kg Antarctic ice |
| title_sort | 81kr dating of 1 kg antarctic ice |
| url | https://doi.org/10.1038/s41467-025-59264-6 |
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