Deglaciation chronology, sea-level changes and environmental changes from Holocene lake sediments of Germania Havn Sø, Sabine Ø, northeast Greenland
Abstract Germania Havn Sø is located at the outermost coast of northeastern Greenland. According to radiocarbon dating, the lake basin was deglaciated in the early Holocene, around 11,000 cal yr BP. At that time the lake was a marine bay, but the lake was isolated soon after deglaciation at ~ 10,600...
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crcambridgeupr:10.1016/j.yqres.2012.03.004 2024-06-23T07:52:05+00:00 Deglaciation chronology, sea-level changes and environmental changes from Holocene lake sediments of Germania Havn Sø, Sabine Ø, northeast Greenland Bennike, Ole Wagner, Bernd 2012 http://dx.doi.org/10.1016/j.yqres.2012.03.004 http://api.elsevier.com/content/article/PII:S0033589412000300?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589412000300?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400008425 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Quaternary Research volume 78, issue 1, page 103-109 ISSN 0033-5894 1096-0287 journal-article 2012 crcambridgeupr https://doi.org/10.1016/j.yqres.2012.03.004 2024-06-05T04:03:21Z Abstract Germania Havn Sø is located at the outermost coast of northeastern Greenland. According to radiocarbon dating, the lake basin was deglaciated in the early Holocene, around 11,000 cal yr BP. At that time the lake was a marine bay, but the lake was isolated soon after deglaciation at ~ 10,600 cal yr BP. The marine fauna was species-poor, indicating harsh conditions with a high sedimentation rate and lowered salinity due to glacial meltwater supply. The pioneer vegetation around the lake was dominated by mosses and herbs. Deposition of relatively coarse sediments during the early Holocene indicates erosion of the newly deglaciated terrain. Remains of the first woody plant ( Salix herbacea) appear at 7600 cal yr BP and remains of other woody plants ( Salix arctica , Dryas octopetala , Cassiope tetragona and Empetrum nigrum ) appear around one millennium later. Declining concentrations of D. octopetala and the caddis fly Apatania zonella in the late Holocene probably imply falling summer temperatures. Only moderate changes in the granulometric and geochemical record during the Holocene indicate relatively stable environmental settings in the lake, which can probably be explained by its location at the outer coast and the buffering effect of the neighboring ocean. Article in Journal/Newspaper Cassiope tetragona Dryas octopetala Empetrum nigrum Greenland Salix herbacea Cambridge University Press Germania Havn ENVELOPE(-18.827,-18.827,74.537,74.537) Greenland Sabine Ø ENVELOPE(-18.945,-18.945,74.595,74.595) Quaternary Research 78 1 103 109 |
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Open Polar |
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Cambridge University Press |
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English |
description |
Abstract Germania Havn Sø is located at the outermost coast of northeastern Greenland. According to radiocarbon dating, the lake basin was deglaciated in the early Holocene, around 11,000 cal yr BP. At that time the lake was a marine bay, but the lake was isolated soon after deglaciation at ~ 10,600 cal yr BP. The marine fauna was species-poor, indicating harsh conditions with a high sedimentation rate and lowered salinity due to glacial meltwater supply. The pioneer vegetation around the lake was dominated by mosses and herbs. Deposition of relatively coarse sediments during the early Holocene indicates erosion of the newly deglaciated terrain. Remains of the first woody plant ( Salix herbacea) appear at 7600 cal yr BP and remains of other woody plants ( Salix arctica , Dryas octopetala , Cassiope tetragona and Empetrum nigrum ) appear around one millennium later. Declining concentrations of D. octopetala and the caddis fly Apatania zonella in the late Holocene probably imply falling summer temperatures. Only moderate changes in the granulometric and geochemical record during the Holocene indicate relatively stable environmental settings in the lake, which can probably be explained by its location at the outer coast and the buffering effect of the neighboring ocean. |
format |
Article in Journal/Newspaper |
author |
Bennike, Ole Wagner, Bernd |
spellingShingle |
Bennike, Ole Wagner, Bernd Deglaciation chronology, sea-level changes and environmental changes from Holocene lake sediments of Germania Havn Sø, Sabine Ø, northeast Greenland |
author_facet |
Bennike, Ole Wagner, Bernd |
author_sort |
Bennike, Ole |
title |
Deglaciation chronology, sea-level changes and environmental changes from Holocene lake sediments of Germania Havn Sø, Sabine Ø, northeast Greenland |
title_short |
Deglaciation chronology, sea-level changes and environmental changes from Holocene lake sediments of Germania Havn Sø, Sabine Ø, northeast Greenland |
title_full |
Deglaciation chronology, sea-level changes and environmental changes from Holocene lake sediments of Germania Havn Sø, Sabine Ø, northeast Greenland |
title_fullStr |
Deglaciation chronology, sea-level changes and environmental changes from Holocene lake sediments of Germania Havn Sø, Sabine Ø, northeast Greenland |
title_full_unstemmed |
Deglaciation chronology, sea-level changes and environmental changes from Holocene lake sediments of Germania Havn Sø, Sabine Ø, northeast Greenland |
title_sort |
deglaciation chronology, sea-level changes and environmental changes from holocene lake sediments of germania havn sø, sabine ø, northeast greenland |
publisher |
Cambridge University Press (CUP) |
publishDate |
2012 |
url |
http://dx.doi.org/10.1016/j.yqres.2012.03.004 http://api.elsevier.com/content/article/PII:S0033589412000300?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589412000300?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400008425 |
long_lat |
ENVELOPE(-18.827,-18.827,74.537,74.537) ENVELOPE(-18.945,-18.945,74.595,74.595) |
geographic |
Germania Havn Greenland Sabine Ø |
geographic_facet |
Germania Havn Greenland Sabine Ø |
genre |
Cassiope tetragona Dryas octopetala Empetrum nigrum Greenland Salix herbacea |
genre_facet |
Cassiope tetragona Dryas octopetala Empetrum nigrum Greenland Salix herbacea |
op_source |
Quaternary Research volume 78, issue 1, page 103-109 ISSN 0033-5894 1096-0287 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1016/j.yqres.2012.03.004 |
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Quaternary Research |
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78 |
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1 |
container_start_page |
103 |
op_container_end_page |
109 |
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1802643290933166080 |