Biogenic Matter in Surface Sediments of the Weddell Sea Continental Shelf
POLAR 2018 - XXXV SCAR Meetings and SCAR/IASC Open Science Conference, 19-23 June 2018, Davos, Switzerland.-- 1 page The organic carbon (OC) and biogenic silica (bSi) contents in the upper 5 cm of the seabed were investigated in more than 60 sediment cores from several regions along the continental...
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ftcsic:oai:digital.csic.es:10261/190899 2024-02-11T09:58:50+01:00 Biogenic Matter in Surface Sediments of the Weddell Sea Continental Shelf Isla, Enrique 2018 http://hdl.handle.net/10261/190899 unknown https://www.scar.org/library/conferences/scar-open-science-conferences/abstracts/5075-polar2018-abstracts/file/ Sí isbn: 978-0-948277-54-2 Where the Poles come together : Abstract Proceedings Open Science Conference: 2054 (2018) http://hdl.handle.net/10261/190899 none comunicación de congreso http://purl.org/coar/resource_type/c_5794 2018 ftcsic 2024-01-16T10:43:48Z POLAR 2018 - XXXV SCAR Meetings and SCAR/IASC Open Science Conference, 19-23 June 2018, Davos, Switzerland.-- 1 page The organic carbon (OC) and biogenic silica (bSi) contents in the upper 5 cm of the seabed were investigated in more than 60 sediment cores from several regions along the continental shelf of the Weddell Sea and the northern Antarctic Peninsula. The results showed that the shelf on the western flank of the Filchner Trough has the lowest contents in OC, 1.2 mg g-1, in contrast to the northwestern Weddell Sea where values of up to 16 mg g-1 were found. In the case of bSi the lowest values were also observed in sediment from the western flank of the Filchner Trough, 5 mg g-1, whereas the highest concentrations were measured in samples from the Bransfield Strait, 114 mg g-1. The lowest values corresponded to regions where sea ice distribution drastically reduces primary production at the sea surface and consequently there is a relatively small export flux of biogenic matter such as in the cases of the western flank of the Filchner Trough and the Larsen A, B and C continental shelves. In contrast, in regions where the typical ice-free seasonal summer conditions take place, such as Bransfield Strait and the northwestern Weddell Sea at the vicinities of the Antarctic Peninsula and the eastern Weddell Sea off Kapp Norvegia, the biogenic matter contents in the sediment are higher. Ongoing climate change directly affects sea ice distribution and most likely will transfer this signal to the chemical characteristics of the seabed sediment Peer Reviewed Conference Object Antarc* Antarctic Antarctic Peninsula Bransfield Strait Sea ice Weddell Sea Digital.CSIC (Spanish National Research Council) Antarctic Antarctic Peninsula Bransfield Strait Filchner Trough ENVELOPE(-36.000,-36.000,-77.000,-77.000) The Antarctic Weddell Weddell Sea |
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Open Polar |
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Digital.CSIC (Spanish National Research Council) |
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ftcsic |
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unknown |
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POLAR 2018 - XXXV SCAR Meetings and SCAR/IASC Open Science Conference, 19-23 June 2018, Davos, Switzerland.-- 1 page The organic carbon (OC) and biogenic silica (bSi) contents in the upper 5 cm of the seabed were investigated in more than 60 sediment cores from several regions along the continental shelf of the Weddell Sea and the northern Antarctic Peninsula. The results showed that the shelf on the western flank of the Filchner Trough has the lowest contents in OC, 1.2 mg g-1, in contrast to the northwestern Weddell Sea where values of up to 16 mg g-1 were found. In the case of bSi the lowest values were also observed in sediment from the western flank of the Filchner Trough, 5 mg g-1, whereas the highest concentrations were measured in samples from the Bransfield Strait, 114 mg g-1. The lowest values corresponded to regions where sea ice distribution drastically reduces primary production at the sea surface and consequently there is a relatively small export flux of biogenic matter such as in the cases of the western flank of the Filchner Trough and the Larsen A, B and C continental shelves. In contrast, in regions where the typical ice-free seasonal summer conditions take place, such as Bransfield Strait and the northwestern Weddell Sea at the vicinities of the Antarctic Peninsula and the eastern Weddell Sea off Kapp Norvegia, the biogenic matter contents in the sediment are higher. Ongoing climate change directly affects sea ice distribution and most likely will transfer this signal to the chemical characteristics of the seabed sediment Peer Reviewed |
format |
Conference Object |
author |
Isla, Enrique |
spellingShingle |
Isla, Enrique Biogenic Matter in Surface Sediments of the Weddell Sea Continental Shelf |
author_facet |
Isla, Enrique |
author_sort |
Isla, Enrique |
title |
Biogenic Matter in Surface Sediments of the Weddell Sea Continental Shelf |
title_short |
Biogenic Matter in Surface Sediments of the Weddell Sea Continental Shelf |
title_full |
Biogenic Matter in Surface Sediments of the Weddell Sea Continental Shelf |
title_fullStr |
Biogenic Matter in Surface Sediments of the Weddell Sea Continental Shelf |
title_full_unstemmed |
Biogenic Matter in Surface Sediments of the Weddell Sea Continental Shelf |
title_sort |
biogenic matter in surface sediments of the weddell sea continental shelf |
publishDate |
2018 |
url |
http://hdl.handle.net/10261/190899 |
long_lat |
ENVELOPE(-36.000,-36.000,-77.000,-77.000) |
geographic |
Antarctic Antarctic Peninsula Bransfield Strait Filchner Trough The Antarctic Weddell Weddell Sea |
geographic_facet |
Antarctic Antarctic Peninsula Bransfield Strait Filchner Trough The Antarctic Weddell Weddell Sea |
genre |
Antarc* Antarctic Antarctic Peninsula Bransfield Strait Sea ice Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Bransfield Strait Sea ice Weddell Sea |
op_relation |
https://www.scar.org/library/conferences/scar-open-science-conferences/abstracts/5075-polar2018-abstracts/file/ Sí isbn: 978-0-948277-54-2 Where the Poles come together : Abstract Proceedings Open Science Conference: 2054 (2018) http://hdl.handle.net/10261/190899 |
op_rights |
none |
_version_ |
1790594617439158272 |