(Appendix A) Abundance of selected coccolithophores in sediment core DS97-2P, North Atlantic
The calcareous nannofossil assemblages from sediment core DS97-2P from the Reykjanes Ridge have been investigated to document oceanographic changes in surface water during the Holocene. The recorded variations in coccolithophore species assemblages and accumulation rates indicate that the region was...
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ftdatacite:10.15468/8sz828 2023-05-15T17:28:21+02:00 (Appendix A) Abundance of selected coccolithophores in sediment core DS97-2P, North Atlantic Balestra, Barbara Ziveri, Patrizia Karl-Heinz Baumann Troelstra, Simon Monechi, Simonetta 2010 https://dx.doi.org/10.15468/8sz828 https://www.gbif.org/dataset/574e732b-19eb-450a-956c-da90e68e3508 en eng PANGAEA - Publishing Network for Geoscientific and Environmental Data https://dx.doi.org/10.1594/pangaea.807155 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY OCCURRENCE Dataset dataset 2010 ftdatacite https://doi.org/10.15468/8sz828 https://doi.org/10.1594/pangaea.807155 2022-04-01T09:01:11Z The calcareous nannofossil assemblages from sediment core DS97-2P from the Reykjanes Ridge have been investigated to document oceanographic changes in surface water during the Holocene. The recorded variations in coccolithophore species assemblages and accumulation rates indicate that the region was subjected to rapid changes of surface water masses throughout the entire Holocene. Coccolithophore assemblages generally are of low species diversity and consist mainly of Emiliania huxleyi and Coccolithus pelagicus ssp. pelagicus. Two major events occurred at 8.5-7 ka and at 4.5-3.5 ka, showing higher coccolith accumulation rates, suggesting that the influence of relatively warm Atlantic waters via the Irminger Current was strong in the investigated area. The coccolithophore assemblages have been compared with diatom, foraminifer and sedimentological records within the same core. These data, supported by a comparison with previously published proxy records, add credit to the hypothesis that Holocene changes did not occur uniformly across the North Atlantic. The results have highlighted the Holocene pattern in the North Atlantic, as a period influenced by strong regionalism with discrepancies in the hydrographical trends and in the distribution of the planktonic proxies. Dataset North Atlantic DataCite Metadata Store (German National Library of Science and Technology) Reykjanes ENVELOPE(-22.250,-22.250,65.467,65.467) |
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collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
description |
The calcareous nannofossil assemblages from sediment core DS97-2P from the Reykjanes Ridge have been investigated to document oceanographic changes in surface water during the Holocene. The recorded variations in coccolithophore species assemblages and accumulation rates indicate that the region was subjected to rapid changes of surface water masses throughout the entire Holocene. Coccolithophore assemblages generally are of low species diversity and consist mainly of Emiliania huxleyi and Coccolithus pelagicus ssp. pelagicus. Two major events occurred at 8.5-7 ka and at 4.5-3.5 ka, showing higher coccolith accumulation rates, suggesting that the influence of relatively warm Atlantic waters via the Irminger Current was strong in the investigated area. The coccolithophore assemblages have been compared with diatom, foraminifer and sedimentological records within the same core. These data, supported by a comparison with previously published proxy records, add credit to the hypothesis that Holocene changes did not occur uniformly across the North Atlantic. The results have highlighted the Holocene pattern in the North Atlantic, as a period influenced by strong regionalism with discrepancies in the hydrographical trends and in the distribution of the planktonic proxies. |
format |
Dataset |
author |
Balestra, Barbara Ziveri, Patrizia Karl-Heinz Baumann Troelstra, Simon Monechi, Simonetta |
spellingShingle |
Balestra, Barbara Ziveri, Patrizia Karl-Heinz Baumann Troelstra, Simon Monechi, Simonetta (Appendix A) Abundance of selected coccolithophores in sediment core DS97-2P, North Atlantic |
author_facet |
Balestra, Barbara Ziveri, Patrizia Karl-Heinz Baumann Troelstra, Simon Monechi, Simonetta |
author_sort |
Balestra, Barbara |
title |
(Appendix A) Abundance of selected coccolithophores in sediment core DS97-2P, North Atlantic |
title_short |
(Appendix A) Abundance of selected coccolithophores in sediment core DS97-2P, North Atlantic |
title_full |
(Appendix A) Abundance of selected coccolithophores in sediment core DS97-2P, North Atlantic |
title_fullStr |
(Appendix A) Abundance of selected coccolithophores in sediment core DS97-2P, North Atlantic |
title_full_unstemmed |
(Appendix A) Abundance of selected coccolithophores in sediment core DS97-2P, North Atlantic |
title_sort |
(appendix a) abundance of selected coccolithophores in sediment core ds97-2p, north atlantic |
publisher |
PANGAEA - Publishing Network for Geoscientific and Environmental Data |
publishDate |
2010 |
url |
https://dx.doi.org/10.15468/8sz828 https://www.gbif.org/dataset/574e732b-19eb-450a-956c-da90e68e3508 |
long_lat |
ENVELOPE(-22.250,-22.250,65.467,65.467) |
geographic |
Reykjanes |
geographic_facet |
Reykjanes |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://dx.doi.org/10.1594/pangaea.807155 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.15468/8sz828 https://doi.org/10.1594/pangaea.807155 |
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1766120976446128128 |