Late-Holocene environment and climatic changes in Ameralik Fjord, southwest Greenland: evidence from the sedimentary record
Sedimentological and geochemical (XRF) data together with information from diatom and benthic foraminiferal records of a 3.5 m long gravity core from Ameralik Fjord, southern West Greenland, is used for reconstructing late-Holocene environmental changes in this area. The changes are linked to large-...
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Online Access: | http://dx.doi.org/10.1191/0959683606hl963rp http://journals.sagepub.com/doi/pdf/10.1191/0959683606hl963rp |
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crsagepubl:10.1191/0959683606hl963rp 2024-09-15T17:38:37+00:00 Late-Holocene environment and climatic changes in Ameralik Fjord, southwest Greenland: evidence from the sedimentary record Møller, H. S. Jensen, K. G. Kuijpers, A. Aagaard-Sørensen, S. Seidenkrantz, M.-S. Prins, M. Endler, R. Mikkelsen, N. 2006 http://dx.doi.org/10.1191/0959683606hl963rp http://journals.sagepub.com/doi/pdf/10.1191/0959683606hl963rp en eng SAGE Publications http://journals.sagepub.com/page/policies/text-and-data-mining-license The Holocene volume 16, issue 5, page 685-695 ISSN 0959-6836 1477-0911 journal-article 2006 crsagepubl https://doi.org/10.1191/0959683606hl963rp 2024-07-15T04:30:34Z Sedimentological and geochemical (XRF) data together with information from diatom and benthic foraminiferal records of a 3.5 m long gravity core from Ameralik Fjord, southern West Greenland, is used for reconstructing late-Holocene environmental changes in this area. The changes are linked to large-scale North Atlantic ocean and climate variability. AMS 14 C-dating of benthic foraminifera indicates that the sediment core records the last 4400 years and covers the termination of the Holocene Thermal Maximum (HTM). The late HTM (4.4-3.2 ka BP) is characterized by high accumulation rates of fine (silty) sediments related to strong meltwater discharge from the Inland Ice. The HTM benthic foraminiferal fauna demonstrates the presence of well-ventilated, saline bottom water originating from inflow of subsurface West Greenland Current water of Atlantic (Irminger Sea) origin. The hydrographic conditions were further characterized by limited sea ice probably related to a mild and relatively windy winter climate. After 3.2 ka BP lower fine-grained sedimentation rates, but a larger input from sea-ice rafted or aeolian coarse material prevailed. This can be related to colder atmospheric conditions with a decreased meltwater discharge and more widespread sea-ice cover in the fjord. Article in Journal/Newspaper Ameralik Ameralik fjord Greenland North Atlantic Sea ice SAGE Publications The Holocene 16 5 685 695 |
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Open Polar |
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SAGE Publications |
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English |
description |
Sedimentological and geochemical (XRF) data together with information from diatom and benthic foraminiferal records of a 3.5 m long gravity core from Ameralik Fjord, southern West Greenland, is used for reconstructing late-Holocene environmental changes in this area. The changes are linked to large-scale North Atlantic ocean and climate variability. AMS 14 C-dating of benthic foraminifera indicates that the sediment core records the last 4400 years and covers the termination of the Holocene Thermal Maximum (HTM). The late HTM (4.4-3.2 ka BP) is characterized by high accumulation rates of fine (silty) sediments related to strong meltwater discharge from the Inland Ice. The HTM benthic foraminiferal fauna demonstrates the presence of well-ventilated, saline bottom water originating from inflow of subsurface West Greenland Current water of Atlantic (Irminger Sea) origin. The hydrographic conditions were further characterized by limited sea ice probably related to a mild and relatively windy winter climate. After 3.2 ka BP lower fine-grained sedimentation rates, but a larger input from sea-ice rafted or aeolian coarse material prevailed. This can be related to colder atmospheric conditions with a decreased meltwater discharge and more widespread sea-ice cover in the fjord. |
format |
Article in Journal/Newspaper |
author |
Møller, H. S. Jensen, K. G. Kuijpers, A. Aagaard-Sørensen, S. Seidenkrantz, M.-S. Prins, M. Endler, R. Mikkelsen, N. |
spellingShingle |
Møller, H. S. Jensen, K. G. Kuijpers, A. Aagaard-Sørensen, S. Seidenkrantz, M.-S. Prins, M. Endler, R. Mikkelsen, N. Late-Holocene environment and climatic changes in Ameralik Fjord, southwest Greenland: evidence from the sedimentary record |
author_facet |
Møller, H. S. Jensen, K. G. Kuijpers, A. Aagaard-Sørensen, S. Seidenkrantz, M.-S. Prins, M. Endler, R. Mikkelsen, N. |
author_sort |
Møller, H. S. |
title |
Late-Holocene environment and climatic changes in Ameralik Fjord, southwest Greenland: evidence from the sedimentary record |
title_short |
Late-Holocene environment and climatic changes in Ameralik Fjord, southwest Greenland: evidence from the sedimentary record |
title_full |
Late-Holocene environment and climatic changes in Ameralik Fjord, southwest Greenland: evidence from the sedimentary record |
title_fullStr |
Late-Holocene environment and climatic changes in Ameralik Fjord, southwest Greenland: evidence from the sedimentary record |
title_full_unstemmed |
Late-Holocene environment and climatic changes in Ameralik Fjord, southwest Greenland: evidence from the sedimentary record |
title_sort |
late-holocene environment and climatic changes in ameralik fjord, southwest greenland: evidence from the sedimentary record |
publisher |
SAGE Publications |
publishDate |
2006 |
url |
http://dx.doi.org/10.1191/0959683606hl963rp http://journals.sagepub.com/doi/pdf/10.1191/0959683606hl963rp |
genre |
Ameralik Ameralik fjord Greenland North Atlantic Sea ice |
genre_facet |
Ameralik Ameralik fjord Greenland North Atlantic Sea ice |
op_source |
The Holocene volume 16, issue 5, page 685-695 ISSN 0959-6836 1477-0911 |
op_rights |
http://journals.sagepub.com/page/policies/text-and-data-mining-license |
op_doi |
https://doi.org/10.1191/0959683606hl963rp |
container_title |
The Holocene |
container_volume |
16 |
container_issue |
5 |
container_start_page |
685 |
op_container_end_page |
695 |
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1810474431586238464 |