CN of diatom-bound organic matter in surface sediments ...
Treatment of diatom microfossils from Southern Ocean sediments with hot perchloric acid leaves a "diatom-bound" N fraction which is 0-4 per mil lower in d15N than the bulk sediment, typically 3 per mil lower in recent Antarctic diatom ooze. Results from Southern Ocean surface sediments ind...
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Online Access: | https://dx.doi.org/10.1594/pangaea.856899 https://doi.pangaea.de/10.1594/PANGAEA.856899 |
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ftdatacite:10.1594/pangaea.856899 2024-01-28T10:01:24+01:00 CN of diatom-bound organic matter in surface sediments ... Sigman, Daniel M Altabet, Mark A Francois, Roger McCorkle, Daniel C Gaillard, Jean-Francois 1999 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.856899 https://doi.pangaea.de/10.1594/PANGAEA.856899 en eng PANGAEA https://dx.doi.org/10.1029/1998pa900018 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 Event label Latitude of event Longitude of event DEPTH, sediment/rock Depth, top/min Depth, bottom/max Carbon/Nitrogen ratio MultiCorer MD75 NBP9604 Marion Dufresne 1972 Nathaniel B. Palmer dataset Dataset Supplementary Dataset 1999 ftdatacite https://doi.org/10.1594/pangaea.85689910.1029/1998pa900018 2024-01-04T23:54:53Z Treatment of diatom microfossils from Southern Ocean sediments with hot perchloric acid leaves a "diatom-bound" N fraction which is 0-4 per mil lower in d15N than the bulk sediment, typically 3 per mil lower in recent Antarctic diatom ooze. Results from Southern Ocean surface sediments indicate that early diagenetic changes in bulk sediment N content and d15N are not reflected in diatom-bound N, suggesting that diatom-bound N is physically protected from early diagenesis by the microfossil matrix. A meridional transect of multicores from the Indian sector of the Southern Ocean shows a northward increase in the d15N of diatom-bound N, suggesting that diatom-bound d15N, like bulk sedimentary d15N, varies with nitrate utilization in the overlying surface waters. The d15N of diatom-bound N is 3-4 per mil higher in glacial age Antarctic sediments than in Holocene sediments, supporting the hypothesis, previously based on bulk sediment d15N, that nitrate utilization in the surface Antarctic was higher during the ... : Supplement to: Sigman, Daniel M; Altabet, Mark A; Francois, Roger; McCorkle, Daniel C; Gaillard, Jean-Francois (1999): The isotopic composition of diatom-bound nitrogen in Southern Ocean sediments. Paleoceanography, 14(2), 118-134 ... Dataset Antarc* Antarctic Southern Ocean DataCite Metadata Store (German National Library of Science and Technology) Antarctic Indian Southern Ocean |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Event label Latitude of event Longitude of event DEPTH, sediment/rock Depth, top/min Depth, bottom/max Carbon/Nitrogen ratio MultiCorer MD75 NBP9604 Marion Dufresne 1972 Nathaniel B. Palmer |
spellingShingle |
Event label Latitude of event Longitude of event DEPTH, sediment/rock Depth, top/min Depth, bottom/max Carbon/Nitrogen ratio MultiCorer MD75 NBP9604 Marion Dufresne 1972 Nathaniel B. Palmer Sigman, Daniel M Altabet, Mark A Francois, Roger McCorkle, Daniel C Gaillard, Jean-Francois CN of diatom-bound organic matter in surface sediments ... |
topic_facet |
Event label Latitude of event Longitude of event DEPTH, sediment/rock Depth, top/min Depth, bottom/max Carbon/Nitrogen ratio MultiCorer MD75 NBP9604 Marion Dufresne 1972 Nathaniel B. Palmer |
description |
Treatment of diatom microfossils from Southern Ocean sediments with hot perchloric acid leaves a "diatom-bound" N fraction which is 0-4 per mil lower in d15N than the bulk sediment, typically 3 per mil lower in recent Antarctic diatom ooze. Results from Southern Ocean surface sediments indicate that early diagenetic changes in bulk sediment N content and d15N are not reflected in diatom-bound N, suggesting that diatom-bound N is physically protected from early diagenesis by the microfossil matrix. A meridional transect of multicores from the Indian sector of the Southern Ocean shows a northward increase in the d15N of diatom-bound N, suggesting that diatom-bound d15N, like bulk sedimentary d15N, varies with nitrate utilization in the overlying surface waters. The d15N of diatom-bound N is 3-4 per mil higher in glacial age Antarctic sediments than in Holocene sediments, supporting the hypothesis, previously based on bulk sediment d15N, that nitrate utilization in the surface Antarctic was higher during the ... : Supplement to: Sigman, Daniel M; Altabet, Mark A; Francois, Roger; McCorkle, Daniel C; Gaillard, Jean-Francois (1999): The isotopic composition of diatom-bound nitrogen in Southern Ocean sediments. Paleoceanography, 14(2), 118-134 ... |
format |
Dataset |
author |
Sigman, Daniel M Altabet, Mark A Francois, Roger McCorkle, Daniel C Gaillard, Jean-Francois |
author_facet |
Sigman, Daniel M Altabet, Mark A Francois, Roger McCorkle, Daniel C Gaillard, Jean-Francois |
author_sort |
Sigman, Daniel M |
title |
CN of diatom-bound organic matter in surface sediments ... |
title_short |
CN of diatom-bound organic matter in surface sediments ... |
title_full |
CN of diatom-bound organic matter in surface sediments ... |
title_fullStr |
CN of diatom-bound organic matter in surface sediments ... |
title_full_unstemmed |
CN of diatom-bound organic matter in surface sediments ... |
title_sort |
cn of diatom-bound organic matter in surface sediments ... |
publisher |
PANGAEA |
publishDate |
1999 |
url |
https://dx.doi.org/10.1594/pangaea.856899 https://doi.pangaea.de/10.1594/PANGAEA.856899 |
geographic |
Antarctic Indian Southern Ocean |
geographic_facet |
Antarctic Indian Southern Ocean |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_relation |
https://dx.doi.org/10.1029/1998pa900018 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_doi |
https://doi.org/10.1594/pangaea.85689910.1029/1998pa900018 |
_version_ |
1789326353291542528 |