Fig. 1. Delta 18O values of planktic formaminifera in surface sediment samples from the South Atlantic Ocean
The d18Ocalcite composition of planktic foraminiferal shells in 59 samples collected from surface sediments between 34°S (south-eastern Subtropical Gyre) and 56°S (Antarctic Zone of the Antarctic Circumpolar Current) and additionally from 20°S (Walvis Ridge) in the South Atlantic Ocean documents the...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.55882 2023-05-15T14:04:42+02:00 Fig. 1. Delta 18O values of planktic formaminifera in surface sediment samples from the South Atlantic Ocean Niebler, Hans-Stefan Hubberten, Hans-Wolfgang Gersonde, Rainer MEDIAN LATITUDE: -45.249456 * MEDIAN LONGITUDE: -3.936011 * SOUTH-BOUND LATITUDE: -55.615000 * WEST-BOUND LONGITUDE: -59.096700 * NORTH-BOUND LATITUDE: -20.119000 * EAST-BOUND LONGITUDE: 17.364600 * DATE/TIME START: 1988-03-12T10:28:00 * DATE/TIME END: 1992-11-22T00:00:00 * MINIMUM DEPTH, sediment/rock: 0 m * MAXIMUM DEPTH, sediment/rock: 0 m 1999-11-12 text/tab-separated-values, 541 data points https://doi.pangaea.de/10.1594/PANGAEA.55882 https://doi.org/10.1594/PANGAEA.55882 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.55882 https://doi.org/10.1594/PANGAEA.55882 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Niebler, Hans-Stefan; Hubberten, Hans-Wolfgang; Gersonde, Rainer (1999): Oxygen Isotope Values of Planktic Foraminifera: A Tool for the Reconstruction of Surface Water Stratification. In: Fischer, G & Wefer, G (eds.), Use of Proxies in Paleoceanography - Examples from the South Atlantic, Springer, Berlin, Heidelberg, 165-189 Agulhas Basin ANT-IX/4 ANT-VI/3 ANT-VIII/3 ANT-X/4 ANT-X/5 ANT-X/6 Atlantic Indik Ridge Atlantic Ridge CTD/Rosette CTD-RO DEPTH sediment/rock Discovery Seamount Elevation of event Event label Giant box corer GKG Globigerina bulloides δ18O Globigerinella aequilateralis Globigerinella calida Globigerinita glutinata Globigerinoides conglobatus Globigerinoides ruber white Globigerinoides sacculifer Globigerinoides sacculifer sac Globorotalia crassaformis Globorotalia hirsuta Globorotalia inflata Globorotalia menardii Globorotalia scitula Globorotalia truncatulinoides dextral Globorotalia truncatulinoides sinistral Globorotalia tumida Dataset 1999 ftpangaea https://doi.org/10.1594/PANGAEA.55882 2023-01-20T07:35:55Z The d18Ocalcite composition of planktic foraminiferal shells in 59 samples collected from surface sediments between 34°S (south-eastern Subtropical Gyre) and 56°S (Antarctic Zone of the Antarctic Circumpolar Current) and additionally from 20°S (Walvis Ridge) in the South Atlantic Ocean documents the apparent calcification depth of 24 planktic foraminiferal taxa. Based on the d18Ocalcite signal of their shells, four depth related groups of foraminifera are distinguished, calcifying in a depth between 0 and 50 m (Sphaeroidinella dehiscens, Pulleniatina obliquiloculata, Orbulina bilobata, Globigerinoides sacculifer (with and without sac), Globigerinella aequilateralis, Globigerinoides ruber (white), Globigerina bulloides); 0 and 200 m (Globigerinoides conglobatus, Orbulina universa, Neogloboquadrina dutertrei, Turborotalita quinqueloba, Neogloboquadrina pachyderma (dextral and sinistral)); 100 and 250 m (Globorotalia tumida, Globorotalia menardii, Globigerinella calida, Globorotalia inflata); and deeper than 250 m (Globorotalia hirsuta, Globorotalia scitula, Globorotalia crassaformis, Globorotalia truncatulinoides (dextral and sinistral)). We propose a method to reconstruct temperature gradients between various depths in the water column, but most specifically between 30 m and 250 m, using the d18Ocalcite composition of foraminiferal calcite. Changes in past sea-surface water stratification in the temperate southern South Atlantic Ocean and in the Antarctic Circumpolar Current can be reconstructed in particular with G. bulloides, G. truncatulinoides and G. inflata. Modern temperature gradients between 30 m and 250 m water depth are reconstructed accurately within a range between 1.7 and 9.4 °C with a correlation coefficient of 0.77 and a standard deviation of ±1.3 °C. Dataset Antarc* Antarctic Neogloboquadrina pachyderma South Atlantic Ocean PANGAEA - Data Publisher for Earth & Environmental Science Antarctic The Antarctic Agulhas Basin ENVELOPE(27.000,27.000,-47.000,-47.000) ENVELOPE(-59.096700,17.364600,-20.119000,-55.615000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Agulhas Basin ANT-IX/4 ANT-VI/3 ANT-VIII/3 ANT-X/4 ANT-X/5 ANT-X/6 Atlantic Indik Ridge Atlantic Ridge CTD/Rosette CTD-RO DEPTH sediment/rock Discovery Seamount Elevation of event Event label Giant box corer GKG Globigerina bulloides δ18O Globigerinella aequilateralis Globigerinella calida Globigerinita glutinata Globigerinoides conglobatus Globigerinoides ruber white Globigerinoides sacculifer Globigerinoides sacculifer sac Globorotalia crassaformis Globorotalia hirsuta Globorotalia inflata Globorotalia menardii Globorotalia scitula Globorotalia truncatulinoides dextral Globorotalia truncatulinoides sinistral Globorotalia tumida |
spellingShingle |
Agulhas Basin ANT-IX/4 ANT-VI/3 ANT-VIII/3 ANT-X/4 ANT-X/5 ANT-X/6 Atlantic Indik Ridge Atlantic Ridge CTD/Rosette CTD-RO DEPTH sediment/rock Discovery Seamount Elevation of event Event label Giant box corer GKG Globigerina bulloides δ18O Globigerinella aequilateralis Globigerinella calida Globigerinita glutinata Globigerinoides conglobatus Globigerinoides ruber white Globigerinoides sacculifer Globigerinoides sacculifer sac Globorotalia crassaformis Globorotalia hirsuta Globorotalia inflata Globorotalia menardii Globorotalia scitula Globorotalia truncatulinoides dextral Globorotalia truncatulinoides sinistral Globorotalia tumida Niebler, Hans-Stefan Hubberten, Hans-Wolfgang Gersonde, Rainer Fig. 1. Delta 18O values of planktic formaminifera in surface sediment samples from the South Atlantic Ocean |
topic_facet |
Agulhas Basin ANT-IX/4 ANT-VI/3 ANT-VIII/3 ANT-X/4 ANT-X/5 ANT-X/6 Atlantic Indik Ridge Atlantic Ridge CTD/Rosette CTD-RO DEPTH sediment/rock Discovery Seamount Elevation of event Event label Giant box corer GKG Globigerina bulloides δ18O Globigerinella aequilateralis Globigerinella calida Globigerinita glutinata Globigerinoides conglobatus Globigerinoides ruber white Globigerinoides sacculifer Globigerinoides sacculifer sac Globorotalia crassaformis Globorotalia hirsuta Globorotalia inflata Globorotalia menardii Globorotalia scitula Globorotalia truncatulinoides dextral Globorotalia truncatulinoides sinistral Globorotalia tumida |
description |
The d18Ocalcite composition of planktic foraminiferal shells in 59 samples collected from surface sediments between 34°S (south-eastern Subtropical Gyre) and 56°S (Antarctic Zone of the Antarctic Circumpolar Current) and additionally from 20°S (Walvis Ridge) in the South Atlantic Ocean documents the apparent calcification depth of 24 planktic foraminiferal taxa. Based on the d18Ocalcite signal of their shells, four depth related groups of foraminifera are distinguished, calcifying in a depth between 0 and 50 m (Sphaeroidinella dehiscens, Pulleniatina obliquiloculata, Orbulina bilobata, Globigerinoides sacculifer (with and without sac), Globigerinella aequilateralis, Globigerinoides ruber (white), Globigerina bulloides); 0 and 200 m (Globigerinoides conglobatus, Orbulina universa, Neogloboquadrina dutertrei, Turborotalita quinqueloba, Neogloboquadrina pachyderma (dextral and sinistral)); 100 and 250 m (Globorotalia tumida, Globorotalia menardii, Globigerinella calida, Globorotalia inflata); and deeper than 250 m (Globorotalia hirsuta, Globorotalia scitula, Globorotalia crassaformis, Globorotalia truncatulinoides (dextral and sinistral)). We propose a method to reconstruct temperature gradients between various depths in the water column, but most specifically between 30 m and 250 m, using the d18Ocalcite composition of foraminiferal calcite. Changes in past sea-surface water stratification in the temperate southern South Atlantic Ocean and in the Antarctic Circumpolar Current can be reconstructed in particular with G. bulloides, G. truncatulinoides and G. inflata. Modern temperature gradients between 30 m and 250 m water depth are reconstructed accurately within a range between 1.7 and 9.4 °C with a correlation coefficient of 0.77 and a standard deviation of ±1.3 °C. |
format |
Dataset |
author |
Niebler, Hans-Stefan Hubberten, Hans-Wolfgang Gersonde, Rainer |
author_facet |
Niebler, Hans-Stefan Hubberten, Hans-Wolfgang Gersonde, Rainer |
author_sort |
Niebler, Hans-Stefan |
title |
Fig. 1. Delta 18O values of planktic formaminifera in surface sediment samples from the South Atlantic Ocean |
title_short |
Fig. 1. Delta 18O values of planktic formaminifera in surface sediment samples from the South Atlantic Ocean |
title_full |
Fig. 1. Delta 18O values of planktic formaminifera in surface sediment samples from the South Atlantic Ocean |
title_fullStr |
Fig. 1. Delta 18O values of planktic formaminifera in surface sediment samples from the South Atlantic Ocean |
title_full_unstemmed |
Fig. 1. Delta 18O values of planktic formaminifera in surface sediment samples from the South Atlantic Ocean |
title_sort |
fig. 1. delta 18o values of planktic formaminifera in surface sediment samples from the south atlantic ocean |
publisher |
PANGAEA |
publishDate |
1999 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.55882 https://doi.org/10.1594/PANGAEA.55882 |
op_coverage |
MEDIAN LATITUDE: -45.249456 * MEDIAN LONGITUDE: -3.936011 * SOUTH-BOUND LATITUDE: -55.615000 * WEST-BOUND LONGITUDE: -59.096700 * NORTH-BOUND LATITUDE: -20.119000 * EAST-BOUND LONGITUDE: 17.364600 * DATE/TIME START: 1988-03-12T10:28:00 * DATE/TIME END: 1992-11-22T00:00:00 * MINIMUM DEPTH, sediment/rock: 0 m * MAXIMUM DEPTH, sediment/rock: 0 m |
long_lat |
ENVELOPE(27.000,27.000,-47.000,-47.000) ENVELOPE(-59.096700,17.364600,-20.119000,-55.615000) |
geographic |
Antarctic The Antarctic Agulhas Basin |
geographic_facet |
Antarctic The Antarctic Agulhas Basin |
genre |
Antarc* Antarctic Neogloboquadrina pachyderma South Atlantic Ocean |
genre_facet |
Antarc* Antarctic Neogloboquadrina pachyderma South Atlantic Ocean |
op_source |
Supplement to: Niebler, Hans-Stefan; Hubberten, Hans-Wolfgang; Gersonde, Rainer (1999): Oxygen Isotope Values of Planktic Foraminifera: A Tool for the Reconstruction of Surface Water Stratification. In: Fischer, G & Wefer, G (eds.), Use of Proxies in Paleoceanography - Examples from the South Atlantic, Springer, Berlin, Heidelberg, 165-189 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.55882 https://doi.org/10.1594/PANGAEA.55882 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.55882 |
_version_ |
1766275947803181056 |