Climate archives from 90 to 250 ka in horizontal and vertical ice cores from the Allan Hills Blue Ice Area, Antarctica
Terrestrial meteorite ages indicate that some ice at the Allan Hills blue ice area (AH BIA) may be as old as 2.2 Ma. As such, ice from the AH BIA could potentially be used to extend the ice core record of paleoclimate beyond 800 ka. We collected samples from 5 to 10 cm depth along a 5 km transect th...
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crcambridgeupr:10.1016/j.yqres.2013.07.004 2024-06-23T07:46:50+00:00 Climate archives from 90 to 250 ka in horizontal and vertical ice cores from the Allan Hills Blue Ice Area, Antarctica Spaulding, Nicole E. Higgins, John A. Kurbatov, Andrei V. Bender, Michael L. Arcone, Steven A. Campbell, Seth Dunbar, Nelia W. Chimiak, Laura M. Introne, Douglas S. Mayewski, Paul A. 2013 http://dx.doi.org/10.1016/j.yqres.2013.07.004 http://api.elsevier.com/content/article/PII:S003358941300080X?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S003358941300080X?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400009194 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Quaternary Research volume 80, issue 3, page 562-574 ISSN 0033-5894 1096-0287 journal-article 2013 crcambridgeupr https://doi.org/10.1016/j.yqres.2013.07.004 2024-06-12T04:03:25Z Terrestrial meteorite ages indicate that some ice at the Allan Hills blue ice area (AH BIA) may be as old as 2.2 Ma. As such, ice from the AH BIA could potentially be used to extend the ice core record of paleoclimate beyond 800 ka. We collected samples from 5 to 10 cm depth along a 5 km transect through the main icefield and drilled a 225 m ice core (S27) at the midpoint of the transect to develop the climate archive of the AH BIA. Stable water isotope measurements (δD) of the surface chips and of ice core S27 yield comparable signals, indicating that the climate record has not been significantly altered in the surface ice. Measurements of 40 Ar atm and δ 18 O atm taken from ice core S27 and eight additional shallow ice cores constrain the age of the ice to approximately 90–250 ka. Our findings provide a framework around which future investigations of potentially older ice in the AH BIA could be based. Article in Journal/Newspaper Antarc* Antarctica ice core Cambridge University Press Allan Hills ENVELOPE(159.667,159.667,-76.717,-76.717) Bia ENVELOPE(22.891,22.891,70.317,70.317) Quaternary Research 80 3 562 574 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
Terrestrial meteorite ages indicate that some ice at the Allan Hills blue ice area (AH BIA) may be as old as 2.2 Ma. As such, ice from the AH BIA could potentially be used to extend the ice core record of paleoclimate beyond 800 ka. We collected samples from 5 to 10 cm depth along a 5 km transect through the main icefield and drilled a 225 m ice core (S27) at the midpoint of the transect to develop the climate archive of the AH BIA. Stable water isotope measurements (δD) of the surface chips and of ice core S27 yield comparable signals, indicating that the climate record has not been significantly altered in the surface ice. Measurements of 40 Ar atm and δ 18 O atm taken from ice core S27 and eight additional shallow ice cores constrain the age of the ice to approximately 90–250 ka. Our findings provide a framework around which future investigations of potentially older ice in the AH BIA could be based. |
format |
Article in Journal/Newspaper |
author |
Spaulding, Nicole E. Higgins, John A. Kurbatov, Andrei V. Bender, Michael L. Arcone, Steven A. Campbell, Seth Dunbar, Nelia W. Chimiak, Laura M. Introne, Douglas S. Mayewski, Paul A. |
spellingShingle |
Spaulding, Nicole E. Higgins, John A. Kurbatov, Andrei V. Bender, Michael L. Arcone, Steven A. Campbell, Seth Dunbar, Nelia W. Chimiak, Laura M. Introne, Douglas S. Mayewski, Paul A. Climate archives from 90 to 250 ka in horizontal and vertical ice cores from the Allan Hills Blue Ice Area, Antarctica |
author_facet |
Spaulding, Nicole E. Higgins, John A. Kurbatov, Andrei V. Bender, Michael L. Arcone, Steven A. Campbell, Seth Dunbar, Nelia W. Chimiak, Laura M. Introne, Douglas S. Mayewski, Paul A. |
author_sort |
Spaulding, Nicole E. |
title |
Climate archives from 90 to 250 ka in horizontal and vertical ice cores from the Allan Hills Blue Ice Area, Antarctica |
title_short |
Climate archives from 90 to 250 ka in horizontal and vertical ice cores from the Allan Hills Blue Ice Area, Antarctica |
title_full |
Climate archives from 90 to 250 ka in horizontal and vertical ice cores from the Allan Hills Blue Ice Area, Antarctica |
title_fullStr |
Climate archives from 90 to 250 ka in horizontal and vertical ice cores from the Allan Hills Blue Ice Area, Antarctica |
title_full_unstemmed |
Climate archives from 90 to 250 ka in horizontal and vertical ice cores from the Allan Hills Blue Ice Area, Antarctica |
title_sort |
climate archives from 90 to 250 ka in horizontal and vertical ice cores from the allan hills blue ice area, antarctica |
publisher |
Cambridge University Press (CUP) |
publishDate |
2013 |
url |
http://dx.doi.org/10.1016/j.yqres.2013.07.004 http://api.elsevier.com/content/article/PII:S003358941300080X?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S003358941300080X?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400009194 |
long_lat |
ENVELOPE(159.667,159.667,-76.717,-76.717) ENVELOPE(22.891,22.891,70.317,70.317) |
geographic |
Allan Hills Bia |
geographic_facet |
Allan Hills Bia |
genre |
Antarc* Antarctica ice core |
genre_facet |
Antarc* Antarctica ice core |
op_source |
Quaternary Research volume 80, issue 3, page 562-574 ISSN 0033-5894 1096-0287 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1016/j.yqres.2013.07.004 |
container_title |
Quaternary Research |
container_volume |
80 |
container_issue |
3 |
container_start_page |
562 |
op_container_end_page |
574 |
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1802648577309147136 |