Glacial remobilization cycles as revealed by lateral moraine sediment, Bødalsbreen glacier foreland, western Norway
The proglacial area of Bødalsbreen glacier in western Norway contains nine moraine ridges formed at the maximum of the `Little Ice Age' (~AD 1755) and during the subsequent glacier retreat (AD 1767—2000). The frontal moraines are composed of a sandy diamicton, whereas the lateral ones consist o...
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Online Access: | http://dx.doi.org/10.1177/0959683608101391 http://journals.sagepub.com/doi/pdf/10.1177/0959683608101391 |
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crsagepubl:10.1177/0959683608101391 2023-05-15T16:21:55+02:00 Glacial remobilization cycles as revealed by lateral moraine sediment, Bødalsbreen glacier foreland, western Norway Burki, Valentin Larsen, Eiliv Fredin, Ola Nesje, Atle 2009 http://dx.doi.org/10.1177/0959683608101391 http://journals.sagepub.com/doi/pdf/10.1177/0959683608101391 en eng SAGE Publications http://journals.sagepub.com/page/policies/text-and-data-mining-license The Holocene volume 19, issue 3, page 415-426 ISSN 0959-6836 1477-0911 Paleontology Earth-Surface Processes Ecology Archeology Global and Planetary Change journal-article 2009 crsagepubl https://doi.org/10.1177/0959683608101391 2022-07-03T16:07:54Z The proglacial area of Bødalsbreen glacier in western Norway contains nine moraine ridges formed at the maximum of the `Little Ice Age' (~AD 1755) and during the subsequent glacier retreat (AD 1767—2000). The frontal moraines are composed of a sandy diamicton, whereas the lateral ones consist of only boulder-sized clasts without any matrix. These lateral moraines seemingly are composed of a very high proportion of mature clasts, a notion supported by detailed clast roundness and shape analyses. Furthermore, there is evidence for a decline in clast maturity between the outer (older) three and the inner (younger) three moraine ridges. This decline is interpreted as a change from recycled to freshly plucked clasts. Thus, the more mature clasts in the outer moraines are thought to consist of sediment that has been recycled in the glacial system, whereas the less mature clasts on the inner moraine ridges comprise younger glacially, freshly plucked material. The Holocene glacial history of the study area with a considerably fluctuating ice margin allowed much of the sediment in the catchment to undergo several cycles of erosion, transport and deposition. Moreover, an undulating subglacial topography with several major depressions may have acted as efficient sediment traps during deglaciation phases and as sediment sources during glacial advances. The concept of glacial sediment recycling may thus be applicable to many glaciers around the world, particularly those with a history of intensive glacier fluctuations. Article in Journal/Newspaper glacier SAGE Publications (via Crossref) Bødalsbreen ENVELOPE(15.683,15.683,78.083,78.083) Norway The Holocene 19 3 415 426 |
institution |
Open Polar |
collection |
SAGE Publications (via Crossref) |
op_collection_id |
crsagepubl |
language |
English |
topic |
Paleontology Earth-Surface Processes Ecology Archeology Global and Planetary Change |
spellingShingle |
Paleontology Earth-Surface Processes Ecology Archeology Global and Planetary Change Burki, Valentin Larsen, Eiliv Fredin, Ola Nesje, Atle Glacial remobilization cycles as revealed by lateral moraine sediment, Bødalsbreen glacier foreland, western Norway |
topic_facet |
Paleontology Earth-Surface Processes Ecology Archeology Global and Planetary Change |
description |
The proglacial area of Bødalsbreen glacier in western Norway contains nine moraine ridges formed at the maximum of the `Little Ice Age' (~AD 1755) and during the subsequent glacier retreat (AD 1767—2000). The frontal moraines are composed of a sandy diamicton, whereas the lateral ones consist of only boulder-sized clasts without any matrix. These lateral moraines seemingly are composed of a very high proportion of mature clasts, a notion supported by detailed clast roundness and shape analyses. Furthermore, there is evidence for a decline in clast maturity between the outer (older) three and the inner (younger) three moraine ridges. This decline is interpreted as a change from recycled to freshly plucked clasts. Thus, the more mature clasts in the outer moraines are thought to consist of sediment that has been recycled in the glacial system, whereas the less mature clasts on the inner moraine ridges comprise younger glacially, freshly plucked material. The Holocene glacial history of the study area with a considerably fluctuating ice margin allowed much of the sediment in the catchment to undergo several cycles of erosion, transport and deposition. Moreover, an undulating subglacial topography with several major depressions may have acted as efficient sediment traps during deglaciation phases and as sediment sources during glacial advances. The concept of glacial sediment recycling may thus be applicable to many glaciers around the world, particularly those with a history of intensive glacier fluctuations. |
format |
Article in Journal/Newspaper |
author |
Burki, Valentin Larsen, Eiliv Fredin, Ola Nesje, Atle |
author_facet |
Burki, Valentin Larsen, Eiliv Fredin, Ola Nesje, Atle |
author_sort |
Burki, Valentin |
title |
Glacial remobilization cycles as revealed by lateral moraine sediment, Bødalsbreen glacier foreland, western Norway |
title_short |
Glacial remobilization cycles as revealed by lateral moraine sediment, Bødalsbreen glacier foreland, western Norway |
title_full |
Glacial remobilization cycles as revealed by lateral moraine sediment, Bødalsbreen glacier foreland, western Norway |
title_fullStr |
Glacial remobilization cycles as revealed by lateral moraine sediment, Bødalsbreen glacier foreland, western Norway |
title_full_unstemmed |
Glacial remobilization cycles as revealed by lateral moraine sediment, Bødalsbreen glacier foreland, western Norway |
title_sort |
glacial remobilization cycles as revealed by lateral moraine sediment, bødalsbreen glacier foreland, western norway |
publisher |
SAGE Publications |
publishDate |
2009 |
url |
http://dx.doi.org/10.1177/0959683608101391 http://journals.sagepub.com/doi/pdf/10.1177/0959683608101391 |
long_lat |
ENVELOPE(15.683,15.683,78.083,78.083) |
geographic |
Bødalsbreen Norway |
geographic_facet |
Bødalsbreen Norway |
genre |
glacier |
genre_facet |
glacier |
op_source |
The Holocene volume 19, issue 3, page 415-426 ISSN 0959-6836 1477-0911 |
op_rights |
http://journals.sagepub.com/page/policies/text-and-data-mining-license |
op_doi |
https://doi.org/10.1177/0959683608101391 |
container_title |
The Holocene |
container_volume |
19 |
container_issue |
3 |
container_start_page |
415 |
op_container_end_page |
426 |
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1766009896080244736 |