Brief communication: Identification of 140 000-year-old blue ice in the Grove Mountains, East Antarctica, by krypton-81 dating
The presence of exceptionally old ice and relative ease of access make Antarctic blue-ice areas (BIAs) attractive paleoclimate archives. However, only a handful of BIAs, mostly situated in West Antarctica and along the Transantarctic Mountains, have been investigated for this purpose. Here, we prese...
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ftcopernicus:oai:publications.copernicus.org:tc116106 2024-09-15T17:48:36+00:00 Brief communication: Identification of 140 000-year-old blue ice in the Grove Mountains, East Antarctica, by krypton-81 dating Hu, Zhengyi Jiang, Wei Yan, Yuzhen Huang, Yan Tang, Xueyuan Li, Lin Ritterbusch, Florian Yang, Guo-Min Lu, Zheng-Tian Shi, Guitao 2024-04-09 application/pdf https://doi.org/10.5194/tc-18-1647-2024 https://tc.copernicus.org/articles/18/1647/2024/ eng eng doi:10.5194/tc-18-1647-2024 https://tc.copernicus.org/articles/18/1647/2024/ eISSN: 1994-0424 Text 2024 ftcopernicus https://doi.org/10.5194/tc-18-1647-2024 2024-08-28T05:24:15Z The presence of exceptionally old ice and relative ease of access make Antarctic blue-ice areas (BIAs) attractive paleoclimate archives. However, only a handful of BIAs, mostly situated in West Antarctica and along the Transantarctic Mountains, have been investigated for this purpose. Here, we present the age of surface ice from the Grove Mountains BIA in Princess Elizabeth Land, East Antarctica, determined by measuring 81 Kr in the trapped air. Two samples yield an average age of 143 - 29 + 33 <svg:svg xmlns:svg="http://www.w3.org/2000/svg" width="35pt" height="17pt" class="svg-formula" dspmath="mathimg" md5hash="ad30d90ec066907e65f6835051c718bd"><svg:image xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="tc-18-1647-2024-ie00001.svg" width="35pt" height="17pt" src="tc-18-1647-2024-ie00001.png"/> </svg:svg> kyr. Together with the reported terrestrial age of a chondrite, we conclude that the Grove Mountains BIA holds considerable potential for paleoclimate studies. Text Antarc* Antarctic Antarctica East Antarctica Princess Elizabeth Land West Antarctica Copernicus Publications: E-Journals The Cryosphere 18 4 1647 1652 |
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Copernicus Publications: E-Journals |
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ftcopernicus |
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English |
description |
The presence of exceptionally old ice and relative ease of access make Antarctic blue-ice areas (BIAs) attractive paleoclimate archives. However, only a handful of BIAs, mostly situated in West Antarctica and along the Transantarctic Mountains, have been investigated for this purpose. Here, we present the age of surface ice from the Grove Mountains BIA in Princess Elizabeth Land, East Antarctica, determined by measuring 81 Kr in the trapped air. Two samples yield an average age of 143 - 29 + 33 <svg:svg xmlns:svg="http://www.w3.org/2000/svg" width="35pt" height="17pt" class="svg-formula" dspmath="mathimg" md5hash="ad30d90ec066907e65f6835051c718bd"><svg:image xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="tc-18-1647-2024-ie00001.svg" width="35pt" height="17pt" src="tc-18-1647-2024-ie00001.png"/> </svg:svg> kyr. Together with the reported terrestrial age of a chondrite, we conclude that the Grove Mountains BIA holds considerable potential for paleoclimate studies. |
format |
Text |
author |
Hu, Zhengyi Jiang, Wei Yan, Yuzhen Huang, Yan Tang, Xueyuan Li, Lin Ritterbusch, Florian Yang, Guo-Min Lu, Zheng-Tian Shi, Guitao |
spellingShingle |
Hu, Zhengyi Jiang, Wei Yan, Yuzhen Huang, Yan Tang, Xueyuan Li, Lin Ritterbusch, Florian Yang, Guo-Min Lu, Zheng-Tian Shi, Guitao Brief communication: Identification of 140 000-year-old blue ice in the Grove Mountains, East Antarctica, by krypton-81 dating |
author_facet |
Hu, Zhengyi Jiang, Wei Yan, Yuzhen Huang, Yan Tang, Xueyuan Li, Lin Ritterbusch, Florian Yang, Guo-Min Lu, Zheng-Tian Shi, Guitao |
author_sort |
Hu, Zhengyi |
title |
Brief communication: Identification of 140 000-year-old blue ice in the Grove Mountains, East Antarctica, by krypton-81 dating |
title_short |
Brief communication: Identification of 140 000-year-old blue ice in the Grove Mountains, East Antarctica, by krypton-81 dating |
title_full |
Brief communication: Identification of 140 000-year-old blue ice in the Grove Mountains, East Antarctica, by krypton-81 dating |
title_fullStr |
Brief communication: Identification of 140 000-year-old blue ice in the Grove Mountains, East Antarctica, by krypton-81 dating |
title_full_unstemmed |
Brief communication: Identification of 140 000-year-old blue ice in the Grove Mountains, East Antarctica, by krypton-81 dating |
title_sort |
brief communication: identification of 140 000-year-old blue ice in the grove mountains, east antarctica, by krypton-81 dating |
publishDate |
2024 |
url |
https://doi.org/10.5194/tc-18-1647-2024 https://tc.copernicus.org/articles/18/1647/2024/ |
genre |
Antarc* Antarctic Antarctica East Antarctica Princess Elizabeth Land West Antarctica |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Princess Elizabeth Land West Antarctica |
op_source |
eISSN: 1994-0424 |
op_relation |
doi:10.5194/tc-18-1647-2024 https://tc.copernicus.org/articles/18/1647/2024/ |
op_doi |
https://doi.org/10.5194/tc-18-1647-2024 |
container_title |
The Cryosphere |
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18 |
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4 |
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1647 |
op_container_end_page |
1652 |
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1810290035022364672 |