Age determination of late Quaternary sediment cores from the South Tasman Rise, supplement to: Moy, Christopher M; Howard, William R; Gagan, Michael K (2006): Late Quaternary palaeoceanography of the Circumpolar Deep Water from the South Tasman Rise. Journal of Quaternary Science, 21(7), 763-777
We use sediment cores from the South Tasman Rise (STR) to reconstruct deep- water circulation in the southwest Pacific sector of the Southern Ocean. Sediment cores MD972106 (45° 09' S, 146° 17' E, 3310 m water depth) and GC34 (45° 06' S, 147° 45' E, 4002 m water depth) preserve r...
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ftdatacite:10.1594/pangaea.821370 2023-05-15T18:24:38+02:00 Age determination of late Quaternary sediment cores from the South Tasman Rise, supplement to: Moy, Christopher M; Howard, William R; Gagan, Michael K (2006): Late Quaternary palaeoceanography of the Circumpolar Deep Water from the South Tasman Rise. Journal of Quaternary Science, 21(7), 763-777 Moy, Christopher M Howard, William R Gagan, Michael K 2006 application/zip https://dx.doi.org/10.1594/pangaea.821370 https://doi.pangaea.de/10.1594/PANGAEA.821370 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1002/jqs.1067 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY article Supplementary Collection of Datasets Collection 2006 ftdatacite https://doi.org/10.1594/pangaea.821370 https://doi.org/10.1002/jqs.1067 2022-02-09T13:21:37Z We use sediment cores from the South Tasman Rise (STR) to reconstruct deep- water circulation in the southwest Pacific sector of the Southern Ocean. Sediment cores MD972106 (45° 09' S, 146° 17' E, 3310 m water depth) and GC34 (45° 06' S, 147° 45' E, 4002 m water depth) preserve records covering the last 160 kyr, with chronology controlled by calibrated accelerator mass spectrometry radiocarbon dates and benthic foraminiferal d18O tied to SPECMAP. The STR benthic foraminiferal d13C records provide new d13C values for Southern Ocean deep water spanning the last 160 kyr at sites unlikely to be affected by variations in productivity. The records establish that glacial benthic foraminifera (Cibicidoides spp.) d13C values are lower relative to interglacial values and are comparable to previous glacial benthic d13C records in the Indian and Pacific sectors of the Southern Ocean. Comparisons of the benthic foraminiferal d13C time series at the STR are made with the equatorial Pacific (V19-30 and Site 846) and the equatorial Atlantic (GeoB1115). The similarity of benthic d13C records at the STR to the equatorial Pacific suggest the Southern Ocean deep-water mass closely tracked those of the deep Pacific, and the presence of a d13C gradient between the STR and the equatorial Atlantic suggests there was continual production of northern source deep water over the past 160 kyr. Article in Journal/Newspaper Southern Ocean DataCite Metadata Store (German National Library of Science and Technology) Southern Ocean Pacific Indian South Tasman Rise ENVELOPE(148.000,148.000,-47.500,-47.500) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
description |
We use sediment cores from the South Tasman Rise (STR) to reconstruct deep- water circulation in the southwest Pacific sector of the Southern Ocean. Sediment cores MD972106 (45° 09' S, 146° 17' E, 3310 m water depth) and GC34 (45° 06' S, 147° 45' E, 4002 m water depth) preserve records covering the last 160 kyr, with chronology controlled by calibrated accelerator mass spectrometry radiocarbon dates and benthic foraminiferal d18O tied to SPECMAP. The STR benthic foraminiferal d13C records provide new d13C values for Southern Ocean deep water spanning the last 160 kyr at sites unlikely to be affected by variations in productivity. The records establish that glacial benthic foraminifera (Cibicidoides spp.) d13C values are lower relative to interglacial values and are comparable to previous glacial benthic d13C records in the Indian and Pacific sectors of the Southern Ocean. Comparisons of the benthic foraminiferal d13C time series at the STR are made with the equatorial Pacific (V19-30 and Site 846) and the equatorial Atlantic (GeoB1115). The similarity of benthic d13C records at the STR to the equatorial Pacific suggest the Southern Ocean deep-water mass closely tracked those of the deep Pacific, and the presence of a d13C gradient between the STR and the equatorial Atlantic suggests there was continual production of northern source deep water over the past 160 kyr. |
format |
Article in Journal/Newspaper |
author |
Moy, Christopher M Howard, William R Gagan, Michael K |
spellingShingle |
Moy, Christopher M Howard, William R Gagan, Michael K Age determination of late Quaternary sediment cores from the South Tasman Rise, supplement to: Moy, Christopher M; Howard, William R; Gagan, Michael K (2006): Late Quaternary palaeoceanography of the Circumpolar Deep Water from the South Tasman Rise. Journal of Quaternary Science, 21(7), 763-777 |
author_facet |
Moy, Christopher M Howard, William R Gagan, Michael K |
author_sort |
Moy, Christopher M |
title |
Age determination of late Quaternary sediment cores from the South Tasman Rise, supplement to: Moy, Christopher M; Howard, William R; Gagan, Michael K (2006): Late Quaternary palaeoceanography of the Circumpolar Deep Water from the South Tasman Rise. Journal of Quaternary Science, 21(7), 763-777 |
title_short |
Age determination of late Quaternary sediment cores from the South Tasman Rise, supplement to: Moy, Christopher M; Howard, William R; Gagan, Michael K (2006): Late Quaternary palaeoceanography of the Circumpolar Deep Water from the South Tasman Rise. Journal of Quaternary Science, 21(7), 763-777 |
title_full |
Age determination of late Quaternary sediment cores from the South Tasman Rise, supplement to: Moy, Christopher M; Howard, William R; Gagan, Michael K (2006): Late Quaternary palaeoceanography of the Circumpolar Deep Water from the South Tasman Rise. Journal of Quaternary Science, 21(7), 763-777 |
title_fullStr |
Age determination of late Quaternary sediment cores from the South Tasman Rise, supplement to: Moy, Christopher M; Howard, William R; Gagan, Michael K (2006): Late Quaternary palaeoceanography of the Circumpolar Deep Water from the South Tasman Rise. Journal of Quaternary Science, 21(7), 763-777 |
title_full_unstemmed |
Age determination of late Quaternary sediment cores from the South Tasman Rise, supplement to: Moy, Christopher M; Howard, William R; Gagan, Michael K (2006): Late Quaternary palaeoceanography of the Circumpolar Deep Water from the South Tasman Rise. Journal of Quaternary Science, 21(7), 763-777 |
title_sort |
age determination of late quaternary sediment cores from the south tasman rise, supplement to: moy, christopher m; howard, william r; gagan, michael k (2006): late quaternary palaeoceanography of the circumpolar deep water from the south tasman rise. journal of quaternary science, 21(7), 763-777 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2006 |
url |
https://dx.doi.org/10.1594/pangaea.821370 https://doi.pangaea.de/10.1594/PANGAEA.821370 |
long_lat |
ENVELOPE(148.000,148.000,-47.500,-47.500) |
geographic |
Southern Ocean Pacific Indian South Tasman Rise |
geographic_facet |
Southern Ocean Pacific Indian South Tasman Rise |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
https://dx.doi.org/10.1002/jqs.1067 |
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.821370 https://doi.org/10.1002/jqs.1067 |
_version_ |
1766205395868581888 |