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...
Published in: | Geomorphology |
---|---|
Main Authors: | , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Elsevier
2021
|
Subjects: | |
Online Access: | https://hdl.handle.net/10037/26295 https://doi.org/10.1016/j.geomorph.2021.108003 |
id |
ftunivtroemsoe:oai:munin.uit.no:10037/26295 |
---|---|
record_format |
openpolar |
spelling |
ftunivtroemsoe:oai:munin.uit.no:10037/26295 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 Christoph Knies, Jochen Solbakk, Terje Brook, Edward J. Scheiber, Thomas van der Lelij, Roelant Burki, Valentin Josef Rubensdotter, Brita Lena Eleonor Fredin Himmler, Tobias Yesilyurt, Serdar Christl, Marcus Vockenhuber, Christof Akcar, Naki 2021-10-26 https://hdl.handle.net/10037/26295 https://doi.org/10.1016/j.geomorph.2021.108003 eng eng Elsevier Geomorphology https://www.sciencedirect.com/science/article/pii/S0169555X21004116 Andersen JL, Margreth A, Fredin O, Linge HL, Goodfellow BW, Faust J, Knies J, Solbakk T, Brook EJ, Scheiber T, van der Lelij J, Burki VJ, Rubensdotter BL, Himmler T, Yesilyurt, Christl M, Vockenhuber C, Akcar N. Rapid post-glacial bedrock weathering in coastal Norway. Geomorphology. 2021;397 FRIDAID 1951725 doi:10.1016/j.geomorph.2021.108003 0169-555X 1872-695X https://hdl.handle.net/10037/26295 openAccess Copyright 2021 The Author(s) Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2021 ftunivtroemsoe https://doi.org/10.1016/j.geomorph.2021.108003 2022-08-24T23:00:01Z 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. Article in Journal/Newspaper Subarctic University of Tromsø: Munin Open Research Archive Norway Geomorphology 397 108003 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
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 |
Article in Journal/Newspaper |
author |
Andersen, Jane Lund Margreth, Annina Fredin, Ola Linge, Henriette Goodfellow, Bradley W. Faust, Johan Christoph Knies, Jochen Solbakk, Terje Brook, Edward J. Scheiber, Thomas van der Lelij, Roelant Burki, Valentin Josef Rubensdotter, Brita Lena Eleonor Fredin Himmler, Tobias Yesilyurt, Serdar Christl, Marcus Vockenhuber, Christof Akcar, Naki |
spellingShingle |
Andersen, Jane Lund Margreth, Annina Fredin, Ola Linge, Henriette Goodfellow, Bradley W. Faust, Johan Christoph Knies, Jochen Solbakk, Terje Brook, Edward J. Scheiber, Thomas van der Lelij, Roelant Burki, Valentin Josef Rubensdotter, Brita Lena Eleonor Fredin Himmler, Tobias Yesilyurt, Serdar Christl, Marcus Vockenhuber, Christof Akcar, Naki Rapid post-glacial bedrock weathering in coastal Norway |
author_facet |
Andersen, Jane Lund Margreth, Annina Fredin, Ola Linge, Henriette Goodfellow, Bradley W. Faust, Johan Christoph Knies, Jochen Solbakk, Terje Brook, Edward J. Scheiber, Thomas van der Lelij, Roelant Burki, Valentin Josef Rubensdotter, Brita Lena Eleonor Fredin Himmler, Tobias Yesilyurt, Serdar Christl, Marcus Vockenhuber, Christof Akcar, 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 |
publishDate |
2021 |
url |
https://hdl.handle.net/10037/26295 https://doi.org/10.1016/j.geomorph.2021.108003 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Subarctic |
genre_facet |
Subarctic |
op_relation |
Geomorphology https://www.sciencedirect.com/science/article/pii/S0169555X21004116 Andersen JL, Margreth A, Fredin O, Linge HL, Goodfellow BW, Faust J, Knies J, Solbakk T, Brook EJ, Scheiber T, van der Lelij J, Burki VJ, Rubensdotter BL, Himmler T, Yesilyurt, Christl M, Vockenhuber C, Akcar N. Rapid post-glacial bedrock weathering in coastal Norway. Geomorphology. 2021;397 FRIDAID 1951725 doi:10.1016/j.geomorph.2021.108003 0169-555X 1872-695X https://hdl.handle.net/10037/26295 |
op_rights |
openAccess Copyright 2021 The Author(s) |
op_doi |
https://doi.org/10.1016/j.geomorph.2021.108003 |
container_title |
Geomorphology |
container_volume |
397 |
container_start_page |
108003 |
_version_ |
1766210858081320960 |