A new approach for reconstructing glacier variability based on lake sediments recording input from more than one glacier
We explore the possibility of building a continuous glacier reconstruction by analyzing the integrated sedimentary response of a large (440 km 2 ) glacierized catchment in western Norway, as recorded in the downstream lake Nerfloen (N61°56’, E6°52’). A multi-proxy numerical analysis demonstrates tha...
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Cambridge University Press (CUP)
2012
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Online Access: | http://dx.doi.org/10.1016/j.yqres.2011.10.001 http://api.elsevier.com/content/article/PII:S0033589411001256?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589411001256?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400008279 |
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crcambridgeupr:10.1016/j.yqres.2011.10.001 2024-06-09T07:46:10+00:00 A new approach for reconstructing glacier variability based on lake sediments recording input from more than one glacier Vasskog, Kristian Paasche, Øyvind Nesje, Atle Boyle, John F. Birks, H.J.B. 2012 http://dx.doi.org/10.1016/j.yqres.2011.10.001 http://api.elsevier.com/content/article/PII:S0033589411001256?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589411001256?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400008279 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Quaternary Research volume 77, issue 1, page 192-204 ISSN 0033-5894 1096-0287 journal-article 2012 crcambridgeupr https://doi.org/10.1016/j.yqres.2011.10.001 2024-05-15T12:58:42Z We explore the possibility of building a continuous glacier reconstruction by analyzing the integrated sedimentary response of a large (440 km 2 ) glacierized catchment in western Norway, as recorded in the downstream lake Nerfloen (N61°56’, E6°52’). A multi-proxy numerical analysis demonstrates that it is possible to distinguish a glacier component in the ~ 8000-yr-long record, based on distinct changes in grain size, geochemistry, and magnetic composition. Principal Component Analysis (PCA) reveals a strong common signal in the 15 investigated sedimentary parameters, with the first principal component explaining 77% of the total variability. This signal is interpreted to reflect glacier activity in the upstream catchment, an interpretation that is independently tested through a mineral magnetic provenance analysis of catchment samples. Minimum glacier input is indicated between 6700–5700 cal yr BP, probably reflecting a situation when most glaciers in the catchment had melted away, whereas the highest glacier activity is observed around 600 and 200 cal yr BP. During the local Neoglacial interval (~ 4200 cal yr BP until present), five individual periods of significantly reduced glacier extent are identified at ~ 3400, 3000–2700, 2100–2000, 1700–1500, and ~ 900 cal yr BP. Article in Journal/Newspaper glacier Cambridge University Press Norway Quaternary Research 77 1 192 204 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
We explore the possibility of building a continuous glacier reconstruction by analyzing the integrated sedimentary response of a large (440 km 2 ) glacierized catchment in western Norway, as recorded in the downstream lake Nerfloen (N61°56’, E6°52’). A multi-proxy numerical analysis demonstrates that it is possible to distinguish a glacier component in the ~ 8000-yr-long record, based on distinct changes in grain size, geochemistry, and magnetic composition. Principal Component Analysis (PCA) reveals a strong common signal in the 15 investigated sedimentary parameters, with the first principal component explaining 77% of the total variability. This signal is interpreted to reflect glacier activity in the upstream catchment, an interpretation that is independently tested through a mineral magnetic provenance analysis of catchment samples. Minimum glacier input is indicated between 6700–5700 cal yr BP, probably reflecting a situation when most glaciers in the catchment had melted away, whereas the highest glacier activity is observed around 600 and 200 cal yr BP. During the local Neoglacial interval (~ 4200 cal yr BP until present), five individual periods of significantly reduced glacier extent are identified at ~ 3400, 3000–2700, 2100–2000, 1700–1500, and ~ 900 cal yr BP. |
format |
Article in Journal/Newspaper |
author |
Vasskog, Kristian Paasche, Øyvind Nesje, Atle Boyle, John F. Birks, H.J.B. |
spellingShingle |
Vasskog, Kristian Paasche, Øyvind Nesje, Atle Boyle, John F. Birks, H.J.B. A new approach for reconstructing glacier variability based on lake sediments recording input from more than one glacier |
author_facet |
Vasskog, Kristian Paasche, Øyvind Nesje, Atle Boyle, John F. Birks, H.J.B. |
author_sort |
Vasskog, Kristian |
title |
A new approach for reconstructing glacier variability based on lake sediments recording input from more than one glacier |
title_short |
A new approach for reconstructing glacier variability based on lake sediments recording input from more than one glacier |
title_full |
A new approach for reconstructing glacier variability based on lake sediments recording input from more than one glacier |
title_fullStr |
A new approach for reconstructing glacier variability based on lake sediments recording input from more than one glacier |
title_full_unstemmed |
A new approach for reconstructing glacier variability based on lake sediments recording input from more than one glacier |
title_sort |
new approach for reconstructing glacier variability based on lake sediments recording input from more than one glacier |
publisher |
Cambridge University Press (CUP) |
publishDate |
2012 |
url |
http://dx.doi.org/10.1016/j.yqres.2011.10.001 http://api.elsevier.com/content/article/PII:S0033589411001256?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589411001256?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400008279 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
glacier |
genre_facet |
glacier |
op_source |
Quaternary Research volume 77, issue 1, page 192-204 ISSN 0033-5894 1096-0287 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1016/j.yqres.2011.10.001 |
container_title |
Quaternary Research |
container_volume |
77 |
container_issue |
1 |
container_start_page |
192 |
op_container_end_page |
204 |
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1801375922214928384 |