(Appendix A) Relative abundance of Emiliania huxleyi in sediment cores of the North Atlantic
The coccolithophore species Emiliania huxleyi is characterized by a wide range of sizes, which can be easily distinguished in the light microscope. In this study we have quantified the abundance of large (coccoliths > 4 µm in maximum length) E. huxleyi specimens during the last 25 kyr in sediment...
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Language: | English |
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PANGAEA
2010
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.774598 https://doi.org/10.1594/PANGAEA.774598 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.774598 |
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Open Polar |
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PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
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English |
topic |
162-984 29HE20070802 98 AGE Alboran Sea Azores CALYPSO Calypso Corer Charles Darwin COMPCORE Composite Core Emiliania huxleyi Event label GeoB5546-2 Gravity corer (Kiel type) Hespérides Iberian slope IMAGES IMAGES I IMAGES V International Marine Global Change Study International Polar Year (2007-2008) IPY Joides Resolution KAL15 Kasten corer 15 cm KL Leg162 Le Suroît M39/1 M39/1_29-7 M39029-7 M42/4b Marion Dufresne (1995) MD03-2699 MD03-2705 MD101 MD114 MD134 MD952037 MD95-2037 MD952043 MD95-2043 MD99-2343 Meteor (1986) NEAP NEAP-08K North Atlantic Ocean North Minorca Norwegian Sea |
spellingShingle |
162-984 29HE20070802 98 AGE Alboran Sea Azores CALYPSO Calypso Corer Charles Darwin COMPCORE Composite Core Emiliania huxleyi Event label GeoB5546-2 Gravity corer (Kiel type) Hespérides Iberian slope IMAGES IMAGES I IMAGES V International Marine Global Change Study International Polar Year (2007-2008) IPY Joides Resolution KAL15 Kasten corer 15 cm KL Leg162 Le Suroît M39/1 M39/1_29-7 M39029-7 M42/4b Marion Dufresne (1995) MD03-2699 MD03-2705 MD101 MD114 MD134 MD952037 MD95-2037 MD952043 MD95-2043 MD99-2343 Meteor (1986) NEAP NEAP-08K North Atlantic Ocean North Minorca Norwegian Sea Flores, José-Abel Colmenero-Hidalgo, Elena Mejía Molina, Alejandra E Baumann, Karl-Heinz Henderiks, Jorijntje Larsson, Kristina Prabhu, C N Sierro, Francisco Javier Rodrigues, Teresa (Appendix A) Relative abundance of Emiliania huxleyi in sediment cores of the North Atlantic |
topic_facet |
162-984 29HE20070802 98 AGE Alboran Sea Azores CALYPSO Calypso Corer Charles Darwin COMPCORE Composite Core Emiliania huxleyi Event label GeoB5546-2 Gravity corer (Kiel type) Hespérides Iberian slope IMAGES IMAGES I IMAGES V International Marine Global Change Study International Polar Year (2007-2008) IPY Joides Resolution KAL15 Kasten corer 15 cm KL Leg162 Le Suroît M39/1 M39/1_29-7 M39029-7 M42/4b Marion Dufresne (1995) MD03-2699 MD03-2705 MD101 MD114 MD134 MD952037 MD95-2037 MD952043 MD95-2043 MD99-2343 Meteor (1986) NEAP NEAP-08K North Atlantic Ocean North Minorca Norwegian Sea |
description |
The coccolithophore species Emiliania huxleyi is characterized by a wide range of sizes, which can be easily distinguished in the light microscope. In this study we have quantified the abundance of large (coccoliths > 4 µm in maximum length) E. huxleyi specimens during the last 25 kyr in sedimentary records from eleven cores and drill sites in the NE Atlantic and W Mediterranean Sea, to prove its usefulness in the reconstruction of water mass dynamics and biostratigraphic potential. During the Last Glacial Maximum this large form, a cold-water indicator, was common in the NE Atlantic and Mediterranean, and its regional variation in abundance indicates a displacement of the climatic zones southwards in agreement with the development of ice sheets and sea ice in the Northern Hemisphere during this period. On the other hand, the gradient between northern and southern surface water masses in the Subtropical Gyre appears to have been more pronounced than at present, while the Portugal and Canary Currents were more intense. In the western Mediterranean basin temperatures were cooler than in the adjacent Atlantic, provoking a quasi-endemism of these specimens until the end of Heinrich Event 1. This may have been due to a restriction in the communication between the Atlantic and Mediterranean through the Strait of Gibraltar, the arrival of cold surface water and the amplification of cooling after the development of ice sheets in the Northern Hemisphere. During the deglaciation, large E. huxleyi specimens decreased in abundance at medium and low latitudes, but were still numerous close to the Subarctic region during the Holocene. In transitional waters this decrease to present day abundances occurred after Termination Ib. The abrupt change in abundance of this large E. huxleyi form is proposed as a new biostratigraphic event to characterize the Holocene in mid- to low-latitude water masses in the North Atlantic, although this horizon seems to be diachronous by 5 kyr from tropical to subarctic regions, in agreement ... |
format |
Dataset |
author |
Flores, José-Abel Colmenero-Hidalgo, Elena Mejía Molina, Alejandra E Baumann, Karl-Heinz Henderiks, Jorijntje Larsson, Kristina Prabhu, C N Sierro, Francisco Javier Rodrigues, Teresa |
author_facet |
Flores, José-Abel Colmenero-Hidalgo, Elena Mejía Molina, Alejandra E Baumann, Karl-Heinz Henderiks, Jorijntje Larsson, Kristina Prabhu, C N Sierro, Francisco Javier Rodrigues, Teresa |
author_sort |
Flores, José-Abel |
title |
(Appendix A) Relative abundance of Emiliania huxleyi in sediment cores of the North Atlantic |
title_short |
(Appendix A) Relative abundance of Emiliania huxleyi in sediment cores of the North Atlantic |
title_full |
(Appendix A) Relative abundance of Emiliania huxleyi in sediment cores of the North Atlantic |
title_fullStr |
(Appendix A) Relative abundance of Emiliania huxleyi in sediment cores of the North Atlantic |
title_full_unstemmed |
(Appendix A) Relative abundance of Emiliania huxleyi in sediment cores of the North Atlantic |
title_sort |
(appendix a) relative abundance of emiliania huxleyi in sediment cores of the north atlantic |
publisher |
PANGAEA |
publishDate |
2010 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.774598 https://doi.org/10.1594/PANGAEA.774598 |
op_coverage |
MEDIAN LATITUDE: 43.086489 * MEDIAN LONGITUDE: -13.535902 * SOUTH-BOUND LATITUDE: 18.083333 * WEST-BOUND LONGITUDE: -32.031167 * NORTH-BOUND LATITUDE: 74.957000 * EAST-BOUND LONGITUDE: 13.899000 * DATE/TIME START: 1990-01-01T00:00:00 * DATE/TIME END: 2007-08-17T00:00:00 * MINIMUM ELEVATION: -3085.0 m * MAXIMUM ELEVATION: -1172.0 m |
long_lat |
ENVELOPE(-32.031167,13.899000,74.957000,18.083333) |
genre |
International Polar Year IPY North Atlantic Norwegian Sea Sea ice Subarctic |
genre_facet |
International Polar Year IPY North Atlantic Norwegian Sea Sea ice Subarctic |
op_source |
Supplement to: Flores, José-Abel; Colmenero-Hidalgo, Elena; Mejía Molina, Alejandra E; Baumann, Karl-Heinz; Henderiks, Jorijntje; Larsson, Kristina; Prabhu, C N; Sierro, Francisco Javier; Rodrigues, Teresa (2010): Distribution of large Emiliania huxleyi in the Central and Northeast Atlantic as a tracer of surface ocean dynamics during the last 25,000 years. Marine Micropaleontology, 76(3-4), 53-66, https://doi.org/10.1016/j.marmicro.2010.05.001 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.774598 https://doi.org/10.1594/PANGAEA.774598 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.77459810.1016/j.marmicro.2010.05.001 |
_version_ |
1810452639538741248 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.774598 2024-09-15T18:14:51+00:00 (Appendix A) Relative abundance of Emiliania huxleyi in sediment cores of the North Atlantic Flores, José-Abel Colmenero-Hidalgo, Elena Mejía Molina, Alejandra E Baumann, Karl-Heinz Henderiks, Jorijntje Larsson, Kristina Prabhu, C N Sierro, Francisco Javier Rodrigues, Teresa MEDIAN LATITUDE: 43.086489 * MEDIAN LONGITUDE: -13.535902 * SOUTH-BOUND LATITUDE: 18.083333 * WEST-BOUND LONGITUDE: -32.031167 * NORTH-BOUND LATITUDE: 74.957000 * EAST-BOUND LONGITUDE: 13.899000 * DATE/TIME START: 1990-01-01T00:00:00 * DATE/TIME END: 2007-08-17T00:00:00 * MINIMUM ELEVATION: -3085.0 m * MAXIMUM ELEVATION: -1172.0 m 2010 text/tab-separated-values, 425 data points https://doi.pangaea.de/10.1594/PANGAEA.774598 https://doi.org/10.1594/PANGAEA.774598 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.774598 https://doi.org/10.1594/PANGAEA.774598 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Flores, José-Abel; Colmenero-Hidalgo, Elena; Mejía Molina, Alejandra E; Baumann, Karl-Heinz; Henderiks, Jorijntje; Larsson, Kristina; Prabhu, C N; Sierro, Francisco Javier; Rodrigues, Teresa (2010): Distribution of large Emiliania huxleyi in the Central and Northeast Atlantic as a tracer of surface ocean dynamics during the last 25,000 years. Marine Micropaleontology, 76(3-4), 53-66, https://doi.org/10.1016/j.marmicro.2010.05.001 162-984 29HE20070802 98 AGE Alboran Sea Azores CALYPSO Calypso Corer Charles Darwin COMPCORE Composite Core Emiliania huxleyi Event label GeoB5546-2 Gravity corer (Kiel type) Hespérides Iberian slope IMAGES IMAGES I IMAGES V International Marine Global Change Study International Polar Year (2007-2008) IPY Joides Resolution KAL15 Kasten corer 15 cm KL Leg162 Le Suroît M39/1 M39/1_29-7 M39029-7 M42/4b Marion Dufresne (1995) MD03-2699 MD03-2705 MD101 MD114 MD134 MD952037 MD95-2037 MD952043 MD95-2043 MD99-2343 Meteor (1986) NEAP NEAP-08K North Atlantic Ocean North Minorca Norwegian Sea dataset 2010 ftpangaea https://doi.org/10.1594/PANGAEA.77459810.1016/j.marmicro.2010.05.001 2024-08-21T00:02:27Z The coccolithophore species Emiliania huxleyi is characterized by a wide range of sizes, which can be easily distinguished in the light microscope. In this study we have quantified the abundance of large (coccoliths > 4 µm in maximum length) E. huxleyi specimens during the last 25 kyr in sedimentary records from eleven cores and drill sites in the NE Atlantic and W Mediterranean Sea, to prove its usefulness in the reconstruction of water mass dynamics and biostratigraphic potential. During the Last Glacial Maximum this large form, a cold-water indicator, was common in the NE Atlantic and Mediterranean, and its regional variation in abundance indicates a displacement of the climatic zones southwards in agreement with the development of ice sheets and sea ice in the Northern Hemisphere during this period. On the other hand, the gradient between northern and southern surface water masses in the Subtropical Gyre appears to have been more pronounced than at present, while the Portugal and Canary Currents were more intense. In the western Mediterranean basin temperatures were cooler than in the adjacent Atlantic, provoking a quasi-endemism of these specimens until the end of Heinrich Event 1. This may have been due to a restriction in the communication between the Atlantic and Mediterranean through the Strait of Gibraltar, the arrival of cold surface water and the amplification of cooling after the development of ice sheets in the Northern Hemisphere. During the deglaciation, large E. huxleyi specimens decreased in abundance at medium and low latitudes, but were still numerous close to the Subarctic region during the Holocene. In transitional waters this decrease to present day abundances occurred after Termination Ib. The abrupt change in abundance of this large E. huxleyi form is proposed as a new biostratigraphic event to characterize the Holocene in mid- to low-latitude water masses in the North Atlantic, although this horizon seems to be diachronous by 5 kyr from tropical to subarctic regions, in agreement ... Dataset International Polar Year IPY North Atlantic Norwegian Sea Sea ice Subarctic PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-32.031167,13.899000,74.957000,18.083333) |