A method for successful collection of multicores and gravity cores from Antarctic subglacial lakes
During the 2018–2019 Antarctic field season, the Subglacial Antarctic Lakes Scientific Access project team cleanly accessed Mercer Subglacial Lake, West Antarctica, to sample water and sediments beneath 1087 m of overlying ice. A multicorer was successful in sampling the sediment–water interface, wi...
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ftunivnebraskali:oai:digitalcommons.unl.edu:geosciencefacpub-1714 2023-11-12T04:04:44+01:00 A method for successful collection of multicores and gravity cores from Antarctic subglacial lakes Rosenheim, Brad E. Michaud, Alexander B. Broda, James Gagnon, Alan Venturelli, Ryan A. Campbell, Timothy D. Leventer, Amy Patterson, Molly Siegfried, Matthew J. Christner, Brent C. Duling, Dennis Harwood, David M Dore, John E. Tranter, Martyn Skidmore, Mark L. Priscu, John C. SALSA Science Team 2023-01-01T08:00:00Z application/pdf https://digitalcommons.unl.edu/geosciencefacpub/704 https://digitalcommons.unl.edu/context/geosciencefacpub/article/1714/viewcontent/Rosenheim_LOM_2023_A_method_for_successful__MS_FINAL.pdf unknown DigitalCommons@University of Nebraska - Lincoln https://digitalcommons.unl.edu/geosciencefacpub/704 https://digitalcommons.unl.edu/context/geosciencefacpub/article/1714/viewcontent/Rosenheim_LOM_2023_A_method_for_successful__MS_FINAL.pdf Papers in the Earth and Atmospheric Sciences Earth Sciences text 2023 ftunivnebraskali 2023-10-30T12:13:31Z During the 2018–2019 Antarctic field season, the Subglacial Antarctic Lakes Scientific Access project team cleanly accessed Mercer Subglacial Lake, West Antarctica, to sample water and sediments beneath 1087 m of overlying ice. A multicorer was successful in sampling the sediment–water interface, with 4 deployments retrieving 10 cores between 0.3 and 0.4 m in length. Gravity coring was also successful, retrieving cores of 0.97 and 1.78 m in glacial diamict. However, sediment cores retrieved by the gravity cores were shorter than the core barrel penetration (as measured by mud streaks on the outside of the coring system), indicating that the system can likely be improved. This manuscript describes the design, implementation, successes, and lessons learned while coring sediments in a subglacial lake. Text Antarc* Antarctic Antarctica West Antarctica University of Nebraska-Lincoln: DigitalCommons@UNL |
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University of Nebraska-Lincoln: DigitalCommons@UNL |
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ftunivnebraskali |
language |
unknown |
topic |
Earth Sciences |
spellingShingle |
Earth Sciences Rosenheim, Brad E. Michaud, Alexander B. Broda, James Gagnon, Alan Venturelli, Ryan A. Campbell, Timothy D. Leventer, Amy Patterson, Molly Siegfried, Matthew J. Christner, Brent C. Duling, Dennis Harwood, David M Dore, John E. Tranter, Martyn Skidmore, Mark L. Priscu, John C. SALSA Science Team A method for successful collection of multicores and gravity cores from Antarctic subglacial lakes |
topic_facet |
Earth Sciences |
description |
During the 2018–2019 Antarctic field season, the Subglacial Antarctic Lakes Scientific Access project team cleanly accessed Mercer Subglacial Lake, West Antarctica, to sample water and sediments beneath 1087 m of overlying ice. A multicorer was successful in sampling the sediment–water interface, with 4 deployments retrieving 10 cores between 0.3 and 0.4 m in length. Gravity coring was also successful, retrieving cores of 0.97 and 1.78 m in glacial diamict. However, sediment cores retrieved by the gravity cores were shorter than the core barrel penetration (as measured by mud streaks on the outside of the coring system), indicating that the system can likely be improved. This manuscript describes the design, implementation, successes, and lessons learned while coring sediments in a subglacial lake. |
format |
Text |
author |
Rosenheim, Brad E. Michaud, Alexander B. Broda, James Gagnon, Alan Venturelli, Ryan A. Campbell, Timothy D. Leventer, Amy Patterson, Molly Siegfried, Matthew J. Christner, Brent C. Duling, Dennis Harwood, David M Dore, John E. Tranter, Martyn Skidmore, Mark L. Priscu, John C. SALSA Science Team |
author_facet |
Rosenheim, Brad E. Michaud, Alexander B. Broda, James Gagnon, Alan Venturelli, Ryan A. Campbell, Timothy D. Leventer, Amy Patterson, Molly Siegfried, Matthew J. Christner, Brent C. Duling, Dennis Harwood, David M Dore, John E. Tranter, Martyn Skidmore, Mark L. Priscu, John C. SALSA Science Team |
author_sort |
Rosenheim, Brad E. |
title |
A method for successful collection of multicores and gravity cores from Antarctic subglacial lakes |
title_short |
A method for successful collection of multicores and gravity cores from Antarctic subglacial lakes |
title_full |
A method for successful collection of multicores and gravity cores from Antarctic subglacial lakes |
title_fullStr |
A method for successful collection of multicores and gravity cores from Antarctic subglacial lakes |
title_full_unstemmed |
A method for successful collection of multicores and gravity cores from Antarctic subglacial lakes |
title_sort |
method for successful collection of multicores and gravity cores from antarctic subglacial lakes |
publisher |
DigitalCommons@University of Nebraska - Lincoln |
publishDate |
2023 |
url |
https://digitalcommons.unl.edu/geosciencefacpub/704 https://digitalcommons.unl.edu/context/geosciencefacpub/article/1714/viewcontent/Rosenheim_LOM_2023_A_method_for_successful__MS_FINAL.pdf |
genre |
Antarc* Antarctic Antarctica West Antarctica |
genre_facet |
Antarc* Antarctic Antarctica West Antarctica |
op_source |
Papers in the Earth and Atmospheric Sciences |
op_relation |
https://digitalcommons.unl.edu/geosciencefacpub/704 https://digitalcommons.unl.edu/context/geosciencefacpub/article/1714/viewcontent/Rosenheim_LOM_2023_A_method_for_successful__MS_FINAL.pdf |
_version_ |
1782341753213288448 |