Rapid post-glacial bedrock weathering in coastal Norway
Quantifying bedrock weathering rates under diverse climate conditions is essential to understanding timescales of landscape evolution. Yet, weathering rates are often difficult to constrain, and associating a weathered landform to a specific formative environment can be complicated by overprinting o...
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2022
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ftdatacite:10.48350/166696 2023-05-15T18:28:24+02:00 Rapid post-glacial bedrock weathering in coastal Norway Andersen, Jane Lund Margreth, Annina Fredin, Ola Linge, Henriette Goodfellow, Bradley W. Faust, Johan C. Knies, Jochen Solbakk, Terje Brook, Edward J. Scheiber, Thomas van der Lelij, Roelant Burki, Valentin Rubensdotter, Lena Himmler, Tobias Yeşilyurt, Serdar Christl, Marcus Vockenhuber, Christof Akçar, Naki 2022 https://dx.doi.org/10.48350/166696 https://boris.unibe.ch/166696/ unknown Elsevier Science https://dx.doi.org/10.1016/j.geomorph.2021.108003 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 CC-BY 550 Earth sciences & geology article-journal ScholarlyArticle journal article Text 2022 ftdatacite https://doi.org/10.48350/166696 https://doi.org/10.1016/j.geomorph.2021.108003 2022-04-01T18:48:18Z Quantifying bedrock weathering rates under diverse climate conditions is essential to understanding timescales of landscape evolution. Yet, weathering rates are often difficult to constrain, and associating a weathered landform to a specific formative environment can be complicated by overprinting of successive processes and temporally varying climate. In this study, we investigate three sites between 59°N and 69°N along the Norwegian coast that display grussic saprolite, tafoni, and linear weathering grooves on diverse lithologies. These weathering phenomena have been invoked as examples of geomorphic archives predating Quaternary glaciations and consequently as indicators of minimal glacial erosion. Here we apply cosmogenic nuclide chronometry to assess the recent erosional history. Our results demonstrate that all three sites experienced sufficient erosion to remove most cosmogenic nuclides formed prior to the Last Glacial Maximum. This finding is inconsistent with preservation of surficial (<1–2 m) weathered landforms under non-erosive ice during the last glacial period, while simultaneously demonstrating that post-glacial weathering and erosion rates can be locally rapid (4–10 cm kyr−1) in cold temperate to subarctic coastal locations. Text Subarctic DataCite Metadata Store (German National Library of Science and Technology) Norway |
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DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
550 Earth sciences & geology |
spellingShingle |
550 Earth sciences & geology Andersen, Jane Lund Margreth, Annina Fredin, Ola Linge, Henriette Goodfellow, Bradley W. Faust, Johan C. Knies, Jochen Solbakk, Terje Brook, Edward J. Scheiber, Thomas van der Lelij, Roelant Burki, Valentin Rubensdotter, Lena Himmler, Tobias Yeşilyurt, Serdar Christl, Marcus Vockenhuber, Christof Akçar, Naki Rapid post-glacial bedrock weathering in coastal Norway |
topic_facet |
550 Earth sciences & geology |
description |
Quantifying bedrock weathering rates under diverse climate conditions is essential to understanding timescales of landscape evolution. Yet, weathering rates are often difficult to constrain, and associating a weathered landform to a specific formative environment can be complicated by overprinting of successive processes and temporally varying climate. In this study, we investigate three sites between 59°N and 69°N along the Norwegian coast that display grussic saprolite, tafoni, and linear weathering grooves on diverse lithologies. These weathering phenomena have been invoked as examples of geomorphic archives predating Quaternary glaciations and consequently as indicators of minimal glacial erosion. Here we apply cosmogenic nuclide chronometry to assess the recent erosional history. Our results demonstrate that all three sites experienced sufficient erosion to remove most cosmogenic nuclides formed prior to the Last Glacial Maximum. This finding is inconsistent with preservation of surficial (<1–2 m) weathered landforms under non-erosive ice during the last glacial period, while simultaneously demonstrating that post-glacial weathering and erosion rates can be locally rapid (4–10 cm kyr−1) in cold temperate to subarctic coastal locations. |
format |
Text |
author |
Andersen, Jane Lund Margreth, Annina Fredin, Ola Linge, Henriette Goodfellow, Bradley W. Faust, Johan C. Knies, Jochen Solbakk, Terje Brook, Edward J. Scheiber, Thomas van der Lelij, Roelant Burki, Valentin Rubensdotter, Lena Himmler, Tobias Yeşilyurt, Serdar Christl, Marcus Vockenhuber, Christof Akçar, Naki |
author_facet |
Andersen, Jane Lund Margreth, Annina Fredin, Ola Linge, Henriette Goodfellow, Bradley W. Faust, Johan C. Knies, Jochen Solbakk, Terje Brook, Edward J. Scheiber, Thomas van der Lelij, Roelant Burki, Valentin Rubensdotter, Lena Himmler, Tobias Yeşilyurt, Serdar Christl, Marcus Vockenhuber, Christof Akçar, Naki |
author_sort |
Andersen, Jane Lund |
title |
Rapid post-glacial bedrock weathering in coastal Norway |
title_short |
Rapid post-glacial bedrock weathering in coastal Norway |
title_full |
Rapid post-glacial bedrock weathering in coastal Norway |
title_fullStr |
Rapid post-glacial bedrock weathering in coastal Norway |
title_full_unstemmed |
Rapid post-glacial bedrock weathering in coastal Norway |
title_sort |
rapid post-glacial bedrock weathering in coastal norway |
publisher |
Elsevier Science |
publishDate |
2022 |
url |
https://dx.doi.org/10.48350/166696 https://boris.unibe.ch/166696/ |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Subarctic |
genre_facet |
Subarctic |
op_relation |
https://dx.doi.org/10.1016/j.geomorph.2021.108003 |
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_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.48350/166696 https://doi.org/10.1016/j.geomorph.2021.108003 |
_version_ |
1766210858879287296 |