Surface water conditions and calcium carbonate preservation in the Fram Strait during marine isotope stage 2, 28.8–15.4 kyr
Source at http://doi.org/10.1002/2012PA002448 We present a high-resolution record of calcium carbonate preservation alongside the distribution pattern of planktic foraminifera from the Fram Strait. The record covers the marine isotope stage (MIS) 2, 28.8 to 15.4 kyr, including the Last Glacial Maxim...
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ftunivtroemsoe:oai:munin.uit.no:10037/12134 2023-05-15T14:26:58+02:00 Surface water conditions and calcium carbonate preservation in the Fram Strait during marine isotope stage 2, 28.8–15.4 kyr Zamelczyk, Katarzyna Rasmussen, Tine Lander Husum, Katrine Godtliebsen, Fred Hald, Morten 2014-01-14 https://hdl.handle.net/10037/12134 https://doi.org/10.1002/2012PA002448 eng eng American Geophysical Union Paleoceanography info:eu-repo/grantAgreement/RCN/SFF/223259/NORWAY/Centre for Arctic Gas Hydrate, Environment and Climate/CAGE/ Zamelczyk, K., Rasmussen, T.L., Husum, K., Godtliebsen, F., Hald, M. (2014). Surface water conditions and calcium carbonate preservation in the Fram Strait during marine isotope stage 2, 28.8–15.4 kyr. Paleoceanography. 29(1):1-12 FRIDAID 1083842 doi:10.1002/2012PA002448 0883-8305 1944-9186 https://hdl.handle.net/10037/12134 openAccess VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 VDP::Mathematics and natural science: 400::Geosciences: 450 Journal article Tidsskriftartikkel Peer reviewed 2014 ftunivtroemsoe https://doi.org/10.1002/2012PA002448 2021-06-25T17:55:48Z Source at http://doi.org/10.1002/2012PA002448 We present a high-resolution record of calcium carbonate preservation alongside the distribution pattern of planktic foraminifera from the Fram Strait. The record covers the marine isotope stage (MIS) 2, 28.8 to 15.4 kyr, including the Last Glacial Maximum (LGM) and the early deglaciation in multidecadal temporal resolution. The investigation is based on the distribution patterns of planktic foraminifera, stable isotopes, mean shell weight of Neogloboquadrina pachyderma, the degree of fragmentation of planktic shells, CaCO 3 content, and geochemical and sedimentological data. The dissolution proxies indicate long-lasting periods of markedly reduced preservation of calcium carbonate at ~28.8–27.2, ~24.1–23.2, and ~16.6–15.4 kyr in addition to a number of short-lasting periods (< 300 year) during the LGM. These periods are accompanied by a simultaneous and significant reduction in specimens of subpolar planktic foraminifera indicating a southward expansion of Arctic surface water masses. Prolonged periods with high abundances of subpolar foraminiferal species and good preservation of calcium carbonate are attributed to increased influence of Atlantic water masses, which appears to persist throughout most of the MIS 2. Comparison to Holocene (MIS 1) shell weight records shows that the preservation during MIS 2 was overall better, even during the events of dissolution. This was probably a reflection of the low concentration of atmospheric CO 2 at the time. Article in Journal/Newspaper Arctic Arctic Foraminifera* Fram Strait Neogloboquadrina pachyderma University of Tromsø: Munin Open Research Archive Arctic Paleoceanography 29 1 1 12 |
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Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 VDP::Mathematics and natural science: 400::Geosciences: 450 |
spellingShingle |
VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 VDP::Mathematics and natural science: 400::Geosciences: 450 Zamelczyk, Katarzyna Rasmussen, Tine Lander Husum, Katrine Godtliebsen, Fred Hald, Morten Surface water conditions and calcium carbonate preservation in the Fram Strait during marine isotope stage 2, 28.8–15.4 kyr |
topic_facet |
VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 VDP::Mathematics and natural science: 400::Geosciences: 450 |
description |
Source at http://doi.org/10.1002/2012PA002448 We present a high-resolution record of calcium carbonate preservation alongside the distribution pattern of planktic foraminifera from the Fram Strait. The record covers the marine isotope stage (MIS) 2, 28.8 to 15.4 kyr, including the Last Glacial Maximum (LGM) and the early deglaciation in multidecadal temporal resolution. The investigation is based on the distribution patterns of planktic foraminifera, stable isotopes, mean shell weight of Neogloboquadrina pachyderma, the degree of fragmentation of planktic shells, CaCO 3 content, and geochemical and sedimentological data. The dissolution proxies indicate long-lasting periods of markedly reduced preservation of calcium carbonate at ~28.8–27.2, ~24.1–23.2, and ~16.6–15.4 kyr in addition to a number of short-lasting periods (< 300 year) during the LGM. These periods are accompanied by a simultaneous and significant reduction in specimens of subpolar planktic foraminifera indicating a southward expansion of Arctic surface water masses. Prolonged periods with high abundances of subpolar foraminiferal species and good preservation of calcium carbonate are attributed to increased influence of Atlantic water masses, which appears to persist throughout most of the MIS 2. Comparison to Holocene (MIS 1) shell weight records shows that the preservation during MIS 2 was overall better, even during the events of dissolution. This was probably a reflection of the low concentration of atmospheric CO 2 at the time. |
format |
Article in Journal/Newspaper |
author |
Zamelczyk, Katarzyna Rasmussen, Tine Lander Husum, Katrine Godtliebsen, Fred Hald, Morten |
author_facet |
Zamelczyk, Katarzyna Rasmussen, Tine Lander Husum, Katrine Godtliebsen, Fred Hald, Morten |
author_sort |
Zamelczyk, Katarzyna |
title |
Surface water conditions and calcium carbonate preservation in the Fram Strait during marine isotope stage 2, 28.8–15.4 kyr |
title_short |
Surface water conditions and calcium carbonate preservation in the Fram Strait during marine isotope stage 2, 28.8–15.4 kyr |
title_full |
Surface water conditions and calcium carbonate preservation in the Fram Strait during marine isotope stage 2, 28.8–15.4 kyr |
title_fullStr |
Surface water conditions and calcium carbonate preservation in the Fram Strait during marine isotope stage 2, 28.8–15.4 kyr |
title_full_unstemmed |
Surface water conditions and calcium carbonate preservation in the Fram Strait during marine isotope stage 2, 28.8–15.4 kyr |
title_sort |
surface water conditions and calcium carbonate preservation in the fram strait during marine isotope stage 2, 28.8–15.4 kyr |
publisher |
American Geophysical Union |
publishDate |
2014 |
url |
https://hdl.handle.net/10037/12134 https://doi.org/10.1002/2012PA002448 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic Foraminifera* Fram Strait Neogloboquadrina pachyderma |
genre_facet |
Arctic Arctic Foraminifera* Fram Strait Neogloboquadrina pachyderma |
op_relation |
Paleoceanography info:eu-repo/grantAgreement/RCN/SFF/223259/NORWAY/Centre for Arctic Gas Hydrate, Environment and Climate/CAGE/ Zamelczyk, K., Rasmussen, T.L., Husum, K., Godtliebsen, F., Hald, M. (2014). Surface water conditions and calcium carbonate preservation in the Fram Strait during marine isotope stage 2, 28.8–15.4 kyr. Paleoceanography. 29(1):1-12 FRIDAID 1083842 doi:10.1002/2012PA002448 0883-8305 1944-9186 https://hdl.handle.net/10037/12134 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.1002/2012PA002448 |
container_title |
Paleoceanography |
container_volume |
29 |
container_issue |
1 |
container_start_page |
1 |
op_container_end_page |
12 |
_version_ |
1766300517332418560 |