Recent benthic foraminifera of the Scotia Sea and Argentine Basin, supplement to: Harloff, Joachim; Mackensen, Andreas (1997): Recent benthic foraminiferal associations and ecology of the Scotia Sea and Argentine Basin. Marine Micropaleontology, 31(1-2), 1-29
We investigated 88 surface sediment samples taken with a multiple corer from the southwestern South Atlantic Ocean for their live (Rose Bengal stained) and dead benthic foraminiferal content. Using Q-Mode Principal Component Analysis six live and six dead associations are differentiated. Live and de...
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1997
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Online Access: | https://dx.doi.org/10.1594/pangaea.729697 https://doi.pangaea.de/10.1594/PANGAEA.729697 |
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ftdatacite:10.1594/pangaea.729697 2023-05-15T13:52:53+02:00 Recent benthic foraminifera of the Scotia Sea and Argentine Basin, supplement to: Harloff, Joachim; Mackensen, Andreas (1997): Recent benthic foraminiferal associations and ecology of the Scotia Sea and Argentine Basin. Marine Micropaleontology, 31(1-2), 1-29 Harloff, Joachim Mackensen, Andreas 1997 application/zip https://dx.doi.org/10.1594/pangaea.729697 https://doi.pangaea.de/10.1594/PANGAEA.729697 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1016/s0377-8398(96)00059-x Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY MultiCorer MiniCorer M29/1 ANT-X/5 ANT-XI/2 Meteor 1986 Polarstern Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo South Atlantic in Late Quaternary Reconstruction of Budget and Currents SFB261 Collection article Supplementary Collection of Datasets 1997 ftdatacite https://doi.org/10.1594/pangaea.729697 https://doi.org/10.1016/s0377-8398(96)00059-x 2021-11-05T12:55:41Z We investigated 88 surface sediment samples taken with a multiple corer from the southwestern South Atlantic Ocean for their live (Rose Bengal stained) and dead benthic foraminiferal content. Using Q-Mode Principal Component Analysis six live and six dead associations are differentiated. Live and dead association distributions correspond fairly well; differences are mainly caused by downslope transport and selective test destruction. In addition, four potential fossil associations are calculated from the dead data set after removal of non-fossilizable species. These potential fossil associations are expected to be useful for paleoceanographic reconstructions. Environments are described in detail for the live and potential fossil associations and for selected species.Along the upper Argentine continental slope strong bottom currents control the occurrence of live, dead and potential fossil Angulogerina angulosa associations. Here, particles of a high organic carbon flux rate remain suspended. Below this high energy environment live, dead and potential fossil Uvigerina peregrina dominated associations correlate with enhanced sediment organic carbon content and still high organic carbon flux rates. The live A. angulosa and U. peregrina associations correlate with high standing crops. Furthermore, live and dead Epistominella exigua-Nuttallides umbonifer associations were separated. Dominance of a Nuttallides umbonifer potential fossil association relates to coverage by Antarctic Bottom Water (AABW) and Lower Circumpolar Deep Water (LCDW), above the Calcite Compensation Depth (CCD).Three associations of mainly agglutinated foraminifera occur in sediments bathed mainly by AABW or CDW. A Reophax difflugiformis association was found in mud-rich and diatomaceous sediments. Below the CCD, a Psammosphaera fusca association occurs in coarse sediments poor in organic carbon while a Cribrostomoides subglobosus-Ammobaculites agglutinans association covers a more variable environmental range with mud contents exceeding 30%.One single Eggerella bradyi-Martinottiella communis association poor in both species and individuals remains from the agglutinated associations below the CCD if only preservable species are considered for calculation. Article in Journal/Newspaper Antarc* Antarctic Scotia Sea South Atlantic Ocean DataCite Metadata Store (German National Library of Science and Technology) Andreas ENVELOPE(-60.729,-60.729,-64.008,-64.008) Antarctic Argentine Scotia Sea |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
MultiCorer MiniCorer M29/1 ANT-X/5 ANT-XI/2 Meteor 1986 Polarstern Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo South Atlantic in Late Quaternary Reconstruction of Budget and Currents SFB261 |
spellingShingle |
MultiCorer MiniCorer M29/1 ANT-X/5 ANT-XI/2 Meteor 1986 Polarstern Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo South Atlantic in Late Quaternary Reconstruction of Budget and Currents SFB261 Harloff, Joachim Mackensen, Andreas Recent benthic foraminifera of the Scotia Sea and Argentine Basin, supplement to: Harloff, Joachim; Mackensen, Andreas (1997): Recent benthic foraminiferal associations and ecology of the Scotia Sea and Argentine Basin. Marine Micropaleontology, 31(1-2), 1-29 |
topic_facet |
MultiCorer MiniCorer M29/1 ANT-X/5 ANT-XI/2 Meteor 1986 Polarstern Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo South Atlantic in Late Quaternary Reconstruction of Budget and Currents SFB261 |
description |
We investigated 88 surface sediment samples taken with a multiple corer from the southwestern South Atlantic Ocean for their live (Rose Bengal stained) and dead benthic foraminiferal content. Using Q-Mode Principal Component Analysis six live and six dead associations are differentiated. Live and dead association distributions correspond fairly well; differences are mainly caused by downslope transport and selective test destruction. In addition, four potential fossil associations are calculated from the dead data set after removal of non-fossilizable species. These potential fossil associations are expected to be useful for paleoceanographic reconstructions. Environments are described in detail for the live and potential fossil associations and for selected species.Along the upper Argentine continental slope strong bottom currents control the occurrence of live, dead and potential fossil Angulogerina angulosa associations. Here, particles of a high organic carbon flux rate remain suspended. Below this high energy environment live, dead and potential fossil Uvigerina peregrina dominated associations correlate with enhanced sediment organic carbon content and still high organic carbon flux rates. The live A. angulosa and U. peregrina associations correlate with high standing crops. Furthermore, live and dead Epistominella exigua-Nuttallides umbonifer associations were separated. Dominance of a Nuttallides umbonifer potential fossil association relates to coverage by Antarctic Bottom Water (AABW) and Lower Circumpolar Deep Water (LCDW), above the Calcite Compensation Depth (CCD).Three associations of mainly agglutinated foraminifera occur in sediments bathed mainly by AABW or CDW. A Reophax difflugiformis association was found in mud-rich and diatomaceous sediments. Below the CCD, a Psammosphaera fusca association occurs in coarse sediments poor in organic carbon while a Cribrostomoides subglobosus-Ammobaculites agglutinans association covers a more variable environmental range with mud contents exceeding 30%.One single Eggerella bradyi-Martinottiella communis association poor in both species and individuals remains from the agglutinated associations below the CCD if only preservable species are considered for calculation. |
format |
Article in Journal/Newspaper |
author |
Harloff, Joachim Mackensen, Andreas |
author_facet |
Harloff, Joachim Mackensen, Andreas |
author_sort |
Harloff, Joachim |
title |
Recent benthic foraminifera of the Scotia Sea and Argentine Basin, supplement to: Harloff, Joachim; Mackensen, Andreas (1997): Recent benthic foraminiferal associations and ecology of the Scotia Sea and Argentine Basin. Marine Micropaleontology, 31(1-2), 1-29 |
title_short |
Recent benthic foraminifera of the Scotia Sea and Argentine Basin, supplement to: Harloff, Joachim; Mackensen, Andreas (1997): Recent benthic foraminiferal associations and ecology of the Scotia Sea and Argentine Basin. Marine Micropaleontology, 31(1-2), 1-29 |
title_full |
Recent benthic foraminifera of the Scotia Sea and Argentine Basin, supplement to: Harloff, Joachim; Mackensen, Andreas (1997): Recent benthic foraminiferal associations and ecology of the Scotia Sea and Argentine Basin. Marine Micropaleontology, 31(1-2), 1-29 |
title_fullStr |
Recent benthic foraminifera of the Scotia Sea and Argentine Basin, supplement to: Harloff, Joachim; Mackensen, Andreas (1997): Recent benthic foraminiferal associations and ecology of the Scotia Sea and Argentine Basin. Marine Micropaleontology, 31(1-2), 1-29 |
title_full_unstemmed |
Recent benthic foraminifera of the Scotia Sea and Argentine Basin, supplement to: Harloff, Joachim; Mackensen, Andreas (1997): Recent benthic foraminiferal associations and ecology of the Scotia Sea and Argentine Basin. Marine Micropaleontology, 31(1-2), 1-29 |
title_sort |
recent benthic foraminifera of the scotia sea and argentine basin, supplement to: harloff, joachim; mackensen, andreas (1997): recent benthic foraminiferal associations and ecology of the scotia sea and argentine basin. marine micropaleontology, 31(1-2), 1-29 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
1997 |
url |
https://dx.doi.org/10.1594/pangaea.729697 https://doi.pangaea.de/10.1594/PANGAEA.729697 |
long_lat |
ENVELOPE(-60.729,-60.729,-64.008,-64.008) |
geographic |
Andreas Antarctic Argentine Scotia Sea |
geographic_facet |
Andreas Antarctic Argentine Scotia Sea |
genre |
Antarc* Antarctic Scotia Sea South Atlantic Ocean |
genre_facet |
Antarc* Antarctic Scotia Sea South Atlantic Ocean |
op_relation |
https://dx.doi.org/10.1016/s0377-8398(96)00059-x |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.729697 https://doi.org/10.1016/s0377-8398(96)00059-x |
_version_ |
1766257704583561216 |