Variations of soil profile characteristics due to varying time spans since ice retreat in the inner Nordfjord, western Norway
In the Erdalen and Bødalen drainage basins located in the inner Nordfjord in western Norway the soils were formed after deglaciation. The climate in the uppermost valley areas is sub-arctic oceanic, and the lithology consists of Precambrian granitic orthogneisses on which Leptosols and Regosols are...
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ftdoajarticles:oai:doaj.org/article:c2205c8fc1b6487ab15c0fbdebf4fd71 2023-05-15T15:16:20+02:00 Variations of soil profile characteristics due to varying time spans since ice retreat in the inner Nordfjord, western Norway A. Navas K. Laute A. A. Beylich L. Gaspar 2014-06-01T00:00:00Z https://doi.org/10.5194/se-5-485-2014 https://doaj.org/article/c2205c8fc1b6487ab15c0fbdebf4fd71 EN eng Copernicus Publications http://www.solid-earth.net/5/485/2014/se-5-485-2014.pdf https://doaj.org/toc/1869-9510 https://doaj.org/toc/1869-9529 1869-9510 1869-9529 doi:10.5194/se-5-485-2014 https://doaj.org/article/c2205c8fc1b6487ab15c0fbdebf4fd71 Solid Earth, Vol 5, Iss 1, Pp 485-498 (2014) Geology QE1-996.5 Stratigraphy QE640-699 article 2014 ftdoajarticles https://doi.org/10.5194/se-5-485-2014 2022-12-31T00:03:24Z In the Erdalen and Bødalen drainage basins located in the inner Nordfjord in western Norway the soils were formed after deglaciation. The climate in the uppermost valley areas is sub-arctic oceanic, and the lithology consists of Precambrian granitic orthogneisses on which Leptosols and Regosols are the most common soils. The Little Ice Age glacier advance affected parts of the valleys with the maximum glacier extent around AD 1750. In this study five sites on moraine and colluvium materials were selected to examine main soil properties, grain size distribution, soil organic carbon and pH to assess if soil profile characteristics and patterns of fallout radionuclides (FRNs) and environmental radionuclides (ERNs) are affected by different stages of ice retreat. The Leptosols on the moraines are shallow, poorly developed and vegetated with moss and small birches. The two selected profiles show different radionuclide activities and grain size distribution. The sampled soils on the colluviums outside the LIA glacier limit became ice-free during the Preboral. The Regosols present better-developed profiles, thicker organic horizons and are fully covered by grasses. Activity of 137 Cs and 210 Pb ex concentrate at the topsoil and decrease sharply with depth. The grain size distribution of these soils also reflects the difference in geomorphic processes that have affected the colluvium sites. Significantly lower mass activities of FRNs were found in soils on the moraines than on colluviums. Variations of ERN activities in the valleys were related to characteristics of soil mineralogical composition. These results indicate differences in soil development that are consistent with the age of ice retreat. In addition, the pattern distribution of 137 Cs and 210 Pb ex activities differs in the soils related to the LIA glacier limits in the drainage basins. Article in Journal/Newspaper Arctic glacier Directory of Open Access Journals: DOAJ Articles Arctic Norway Solid Earth 5 1 485 498 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Geology QE1-996.5 Stratigraphy QE640-699 |
spellingShingle |
Geology QE1-996.5 Stratigraphy QE640-699 A. Navas K. Laute A. A. Beylich L. Gaspar Variations of soil profile characteristics due to varying time spans since ice retreat in the inner Nordfjord, western Norway |
topic_facet |
Geology QE1-996.5 Stratigraphy QE640-699 |
description |
In the Erdalen and Bødalen drainage basins located in the inner Nordfjord in western Norway the soils were formed after deglaciation. The climate in the uppermost valley areas is sub-arctic oceanic, and the lithology consists of Precambrian granitic orthogneisses on which Leptosols and Regosols are the most common soils. The Little Ice Age glacier advance affected parts of the valleys with the maximum glacier extent around AD 1750. In this study five sites on moraine and colluvium materials were selected to examine main soil properties, grain size distribution, soil organic carbon and pH to assess if soil profile characteristics and patterns of fallout radionuclides (FRNs) and environmental radionuclides (ERNs) are affected by different stages of ice retreat. The Leptosols on the moraines are shallow, poorly developed and vegetated with moss and small birches. The two selected profiles show different radionuclide activities and grain size distribution. The sampled soils on the colluviums outside the LIA glacier limit became ice-free during the Preboral. The Regosols present better-developed profiles, thicker organic horizons and are fully covered by grasses. Activity of 137 Cs and 210 Pb ex concentrate at the topsoil and decrease sharply with depth. The grain size distribution of these soils also reflects the difference in geomorphic processes that have affected the colluvium sites. Significantly lower mass activities of FRNs were found in soils on the moraines than on colluviums. Variations of ERN activities in the valleys were related to characteristics of soil mineralogical composition. These results indicate differences in soil development that are consistent with the age of ice retreat. In addition, the pattern distribution of 137 Cs and 210 Pb ex activities differs in the soils related to the LIA glacier limits in the drainage basins. |
format |
Article in Journal/Newspaper |
author |
A. Navas K. Laute A. A. Beylich L. Gaspar |
author_facet |
A. Navas K. Laute A. A. Beylich L. Gaspar |
author_sort |
A. Navas |
title |
Variations of soil profile characteristics due to varying time spans since ice retreat in the inner Nordfjord, western Norway |
title_short |
Variations of soil profile characteristics due to varying time spans since ice retreat in the inner Nordfjord, western Norway |
title_full |
Variations of soil profile characteristics due to varying time spans since ice retreat in the inner Nordfjord, western Norway |
title_fullStr |
Variations of soil profile characteristics due to varying time spans since ice retreat in the inner Nordfjord, western Norway |
title_full_unstemmed |
Variations of soil profile characteristics due to varying time spans since ice retreat in the inner Nordfjord, western Norway |
title_sort |
variations of soil profile characteristics due to varying time spans since ice retreat in the inner nordfjord, western norway |
publisher |
Copernicus Publications |
publishDate |
2014 |
url |
https://doi.org/10.5194/se-5-485-2014 https://doaj.org/article/c2205c8fc1b6487ab15c0fbdebf4fd71 |
geographic |
Arctic Norway |
geographic_facet |
Arctic Norway |
genre |
Arctic glacier |
genre_facet |
Arctic glacier |
op_source |
Solid Earth, Vol 5, Iss 1, Pp 485-498 (2014) |
op_relation |
http://www.solid-earth.net/5/485/2014/se-5-485-2014.pdf https://doaj.org/toc/1869-9510 https://doaj.org/toc/1869-9529 1869-9510 1869-9529 doi:10.5194/se-5-485-2014 https://doaj.org/article/c2205c8fc1b6487ab15c0fbdebf4fd71 |
op_doi |
https://doi.org/10.5194/se-5-485-2014 |
container_title |
Solid Earth |
container_volume |
5 |
container_issue |
1 |
container_start_page |
485 |
op_container_end_page |
498 |
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1766346617995132928 |