Late-Holocene Atlantic bottom-water variability in Igaliku Fjord, South Greenland, reconstructed from foraminifera faunas
A high-resolution record of late-Holocene subsurface water-mass characteristics in outer Igaliku Fjord, South Greenland, is presented based on benthic foraminifera faunas from core PO 243–451 collected from a water depth of 304 m. Strati” cation with Atlantic water masses present in the lower part o...
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Online Access: | http://dx.doi.org/10.1191/0959683604hl699rp http://journals.sagepub.com/doi/pdf/10.1191/0959683604hl699rp |
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crsagepubl:10.1191/0959683604hl699rp 2024-09-09T19:42:40+00:00 Late-Holocene Atlantic bottom-water variability in Igaliku Fjord, South Greenland, reconstructed from foraminifera faunas Lassen, Susanne J. Kuijpers, Antoon Kunzendorf, Helmar Hoffmann-Wieck, Gerd Mikkelsen, Naja Konradi, Peter 2004 http://dx.doi.org/10.1191/0959683604hl699rp http://journals.sagepub.com/doi/pdf/10.1191/0959683604hl699rp en eng SAGE Publications http://journals.sagepub.com/page/policies/text-and-data-mining-license The Holocene volume 14, issue 2, page 165-171 ISSN 0959-6836 1477-0911 journal-article 2004 crsagepubl https://doi.org/10.1191/0959683604hl699rp 2024-07-29T04:25:14Z A high-resolution record of late-Holocene subsurface water-mass characteristics in outer Igaliku Fjord, South Greenland, is presented based on benthic foraminifera faunas from core PO 243–451 collected from a water depth of 304 m. Strati” cation with Atlantic water masses present in the lower part of the water-column is suggested to have prevailed during the last 3200 cal. years, except for a period referred to as the‘Mediaeval Warm Period’ (MWP). During the MWP (c. ad 885–1235) the outer part of Igaliku Fjord experienced enhanced vertical mixing and a high hydrodynamic energy level which we ascribe to increasing wind stress through this period, corresponding to the period of the Norse settlement. The transition from the MWP to the‘Little Ice Age’ (LIA) shows a two-step pattern with a short climatic amelioration around AD 1520 before maximum cooling occurred. The intensified wind stress and the overall environmental change are suggested to have contributed to the loss of the Norse settlement in Greenland. Periods with strong stratification and marked in uence of Atlantic subsurface water masses around 2.6, 1.3 ka BP and during the LIA are correlated to North Atlantic Holocene ice-rafting events reported by Bond et al. (1997). Article in Journal/Newspaper Greenland Igaliku North Atlantic SAGE Publications Greenland Igaliku ENVELOPE(-45.421,-45.421,60.988,60.988) Igaliku Fjord ENVELOPE(-45.599,-45.599,60.801,60.801) The Holocene 14 2 165 171 |
institution |
Open Polar |
collection |
SAGE Publications |
op_collection_id |
crsagepubl |
language |
English |
description |
A high-resolution record of late-Holocene subsurface water-mass characteristics in outer Igaliku Fjord, South Greenland, is presented based on benthic foraminifera faunas from core PO 243–451 collected from a water depth of 304 m. Strati” cation with Atlantic water masses present in the lower part of the water-column is suggested to have prevailed during the last 3200 cal. years, except for a period referred to as the‘Mediaeval Warm Period’ (MWP). During the MWP (c. ad 885–1235) the outer part of Igaliku Fjord experienced enhanced vertical mixing and a high hydrodynamic energy level which we ascribe to increasing wind stress through this period, corresponding to the period of the Norse settlement. The transition from the MWP to the‘Little Ice Age’ (LIA) shows a two-step pattern with a short climatic amelioration around AD 1520 before maximum cooling occurred. The intensified wind stress and the overall environmental change are suggested to have contributed to the loss of the Norse settlement in Greenland. Periods with strong stratification and marked in uence of Atlantic subsurface water masses around 2.6, 1.3 ka BP and during the LIA are correlated to North Atlantic Holocene ice-rafting events reported by Bond et al. (1997). |
format |
Article in Journal/Newspaper |
author |
Lassen, Susanne J. Kuijpers, Antoon Kunzendorf, Helmar Hoffmann-Wieck, Gerd Mikkelsen, Naja Konradi, Peter |
spellingShingle |
Lassen, Susanne J. Kuijpers, Antoon Kunzendorf, Helmar Hoffmann-Wieck, Gerd Mikkelsen, Naja Konradi, Peter Late-Holocene Atlantic bottom-water variability in Igaliku Fjord, South Greenland, reconstructed from foraminifera faunas |
author_facet |
Lassen, Susanne J. Kuijpers, Antoon Kunzendorf, Helmar Hoffmann-Wieck, Gerd Mikkelsen, Naja Konradi, Peter |
author_sort |
Lassen, Susanne J. |
title |
Late-Holocene Atlantic bottom-water variability in Igaliku Fjord, South Greenland, reconstructed from foraminifera faunas |
title_short |
Late-Holocene Atlantic bottom-water variability in Igaliku Fjord, South Greenland, reconstructed from foraminifera faunas |
title_full |
Late-Holocene Atlantic bottom-water variability in Igaliku Fjord, South Greenland, reconstructed from foraminifera faunas |
title_fullStr |
Late-Holocene Atlantic bottom-water variability in Igaliku Fjord, South Greenland, reconstructed from foraminifera faunas |
title_full_unstemmed |
Late-Holocene Atlantic bottom-water variability in Igaliku Fjord, South Greenland, reconstructed from foraminifera faunas |
title_sort |
late-holocene atlantic bottom-water variability in igaliku fjord, south greenland, reconstructed from foraminifera faunas |
publisher |
SAGE Publications |
publishDate |
2004 |
url |
http://dx.doi.org/10.1191/0959683604hl699rp http://journals.sagepub.com/doi/pdf/10.1191/0959683604hl699rp |
long_lat |
ENVELOPE(-45.421,-45.421,60.988,60.988) ENVELOPE(-45.599,-45.599,60.801,60.801) |
geographic |
Greenland Igaliku Igaliku Fjord |
geographic_facet |
Greenland Igaliku Igaliku Fjord |
genre |
Greenland Igaliku North Atlantic |
genre_facet |
Greenland Igaliku North Atlantic |
op_source |
The Holocene volume 14, issue 2, page 165-171 ISSN 0959-6836 1477-0911 |
op_rights |
http://journals.sagepub.com/page/policies/text-and-data-mining-license |
op_doi |
https://doi.org/10.1191/0959683604hl699rp |
container_title |
The Holocene |
container_volume |
14 |
container_issue |
2 |
container_start_page |
165 |
op_container_end_page |
171 |
_version_ |
1809911925101821952 |