The ST22 chronology for the Skytrain Ice Rise ice core – Part 2: An age model to the last interglacial and disturbed deep stratigraphy ...
We present an age model for the 651m deep ice core from Skytrain Ice Rise, situated inland of the Ronne Ice Shelf, Antarctica. The top 2000 years have previously been dated using age markers interpolated through annual layer counting. Below this, we align the Skytrain core to the AICC2012 age model...
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2023
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Online Access: | https://dx.doi.org/10.48350/194679 https://boris.unibe.ch/194679/ |
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ftdatacite:10.48350/194679 2024-04-28T08:02:36+00:00 The ST22 chronology for the Skytrain Ice Rise ice core – Part 2: An age model to the last interglacial and disturbed deep stratigraphy ... Mulvaney, Robert Wolff, Eric W. Grieman, Mackenzie M. Hoffmann, Helene H. Humby, Jack D. Nehrbass-Ahles, Christoph Rhodes, Rachael H. Rowell, Isobel F. Parrenin, Frédéric Schmidely, Loïc Fischer, Hubertus Stocker, Thomas F. Christl, Marcus Muscheler, Raimund Landais, Amaelle Prié, Frédéric 2023 https://dx.doi.org/10.48350/194679 https://boris.unibe.ch/194679/ unknown Copernicus Publications https://dx.doi.org/10.5194/cp-19-851-2023 open access Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 http://purl.org/coar/access_right/c_abf2 530 Physics 000 Computer science, knowledge & systems article-journal Text ScholarlyArticle journal article 2023 ftdatacite https://doi.org/10.48350/19467910.5194/cp-19-851-2023 2024-04-02T12:48:52Z We present an age model for the 651m deep ice core from Skytrain Ice Rise, situated inland of the Ronne Ice Shelf, Antarctica. The top 2000 years have previously been dated using age markers interpolated through annual layer counting. Below this, we align the Skytrain core to the AICC2012 age model using tie points in the ice and air phase, and we apply the Paleochrono program to obtain the best fit to the tie points and glaciological constraints. In the gas phase, ties are made using methane and, in critical sections, 18Oair; in the ice phase ties are through 10Be across the Laschamps event and through ice chemistry related to long-range dust transport and deposition. This strategy provides a good outcome to about 108 ka ( 605 m). Beyond that there are signs of flow disturbance, with a section of ice probably repeated. Nonetheless values of CH4 and 18Oair confirm that part of the last interglacial (LIG), from about 117–126 ka (617–627 m), is present and in chronological order. Below this there are clear ... Article in Journal/Newspaper Antarc* Antarctica ice core Ice Shelf Ronne Ice Shelf DataCite Metadata Store (German National Library of Science and Technology) |
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Open Polar |
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DataCite Metadata Store (German National Library of Science and Technology) |
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unknown |
topic |
530 Physics 000 Computer science, knowledge & systems |
spellingShingle |
530 Physics 000 Computer science, knowledge & systems Mulvaney, Robert Wolff, Eric W. Grieman, Mackenzie M. Hoffmann, Helene H. Humby, Jack D. Nehrbass-Ahles, Christoph Rhodes, Rachael H. Rowell, Isobel F. Parrenin, Frédéric Schmidely, Loïc Fischer, Hubertus Stocker, Thomas F. Christl, Marcus Muscheler, Raimund Landais, Amaelle Prié, Frédéric The ST22 chronology for the Skytrain Ice Rise ice core – Part 2: An age model to the last interglacial and disturbed deep stratigraphy ... |
topic_facet |
530 Physics 000 Computer science, knowledge & systems |
description |
We present an age model for the 651m deep ice core from Skytrain Ice Rise, situated inland of the Ronne Ice Shelf, Antarctica. The top 2000 years have previously been dated using age markers interpolated through annual layer counting. Below this, we align the Skytrain core to the AICC2012 age model using tie points in the ice and air phase, and we apply the Paleochrono program to obtain the best fit to the tie points and glaciological constraints. In the gas phase, ties are made using methane and, in critical sections, 18Oair; in the ice phase ties are through 10Be across the Laschamps event and through ice chemistry related to long-range dust transport and deposition. This strategy provides a good outcome to about 108 ka ( 605 m). Beyond that there are signs of flow disturbance, with a section of ice probably repeated. Nonetheless values of CH4 and 18Oair confirm that part of the last interglacial (LIG), from about 117–126 ka (617–627 m), is present and in chronological order. Below this there are clear ... |
format |
Article in Journal/Newspaper |
author |
Mulvaney, Robert Wolff, Eric W. Grieman, Mackenzie M. Hoffmann, Helene H. Humby, Jack D. Nehrbass-Ahles, Christoph Rhodes, Rachael H. Rowell, Isobel F. Parrenin, Frédéric Schmidely, Loïc Fischer, Hubertus Stocker, Thomas F. Christl, Marcus Muscheler, Raimund Landais, Amaelle Prié, Frédéric |
author_facet |
Mulvaney, Robert Wolff, Eric W. Grieman, Mackenzie M. Hoffmann, Helene H. Humby, Jack D. Nehrbass-Ahles, Christoph Rhodes, Rachael H. Rowell, Isobel F. Parrenin, Frédéric Schmidely, Loïc Fischer, Hubertus Stocker, Thomas F. Christl, Marcus Muscheler, Raimund Landais, Amaelle Prié, Frédéric |
author_sort |
Mulvaney, Robert |
title |
The ST22 chronology for the Skytrain Ice Rise ice core – Part 2: An age model to the last interglacial and disturbed deep stratigraphy ... |
title_short |
The ST22 chronology for the Skytrain Ice Rise ice core – Part 2: An age model to the last interglacial and disturbed deep stratigraphy ... |
title_full |
The ST22 chronology for the Skytrain Ice Rise ice core – Part 2: An age model to the last interglacial and disturbed deep stratigraphy ... |
title_fullStr |
The ST22 chronology for the Skytrain Ice Rise ice core – Part 2: An age model to the last interglacial and disturbed deep stratigraphy ... |
title_full_unstemmed |
The ST22 chronology for the Skytrain Ice Rise ice core – Part 2: An age model to the last interglacial and disturbed deep stratigraphy ... |
title_sort |
st22 chronology for the skytrain ice rise ice core – part 2: an age model to the last interglacial and disturbed deep stratigraphy ... |
publisher |
Copernicus Publications |
publishDate |
2023 |
url |
https://dx.doi.org/10.48350/194679 https://boris.unibe.ch/194679/ |
genre |
Antarc* Antarctica ice core Ice Shelf Ronne Ice Shelf |
genre_facet |
Antarc* Antarctica ice core Ice Shelf Ronne Ice Shelf |
op_relation |
https://dx.doi.org/10.5194/cp-19-851-2023 |
op_rights |
open access Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 http://purl.org/coar/access_right/c_abf2 |
op_doi |
https://doi.org/10.48350/19467910.5194/cp-19-851-2023 |
_version_ |
1797573891874357248 |