Sea surface temperature and age analysis from sediment core KT94-15_PC-9, XP98-PC-4 and XP98-PC-2 ...
The Japan Sea experienced bottom water anoxia at the last glacial maximum (LGM) since it is surrounded by four shallow straits, the sill depths of which are close to, or shallower than, the drop in sea level (~120 m) that occurred then. A distinctive negative d18O excursion of planktonic foraminifer...
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ftdatacite:10.1594/pangaea.802171 2024-09-15T18:31:01+00:00 Sea surface temperature and age analysis from sediment core KT94-15_PC-9, XP98-PC-4 and XP98-PC-2 ... Seki, Osamu Kawamura, Kimitaka Ikehara, Minoru Nakatsuka, Takeshi Oba, Tadamichi 2004 application/zip https://dx.doi.org/10.1594/pangaea.802171 https://doi.pangaea.de/10.1594/PANGAEA.802171 en eng PANGAEA https://dx.doi.org/10.1016/s0146-6380(00)00151-0 https://dx.doi.org/10.1016/j.orggeochem.2003.10.011 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 Publication Series of Datasets Collection article 2004 ftdatacite https://doi.org/10.1594/pangaea.80217110.1016/s0146-6380(00)00151-010.1016/j.orggeochem.2003.10.011 2024-08-01T11:01:17Z The Japan Sea experienced bottom water anoxia at the last glacial maximum (LGM) since it is surrounded by four shallow straits, the sill depths of which are close to, or shallower than, the drop in sea level (~120 m) that occurred then. A distinctive negative d18O excursion of planktonic foraminifera also took place during the LGM. This excursion has been interpreted from foraminiferal data as recording a drop in the paleosalinity of surface waters on the assumption of a constant low sea surface temperatures between 34 and 11 ka. We present here a profile of alkenone-based sea surface temperatures (alkenone-SSTs) over the past 36 kyr. Our results suggest that SSTs during the LGM were much higher than those previously assumed. After considering the factors that might affect estimation of alkenone-SSTs and comparisons of core-top alkenone-SSTs values with values for modern seawater we conclude that the higher alkenone-SSTs during the LGM are reliable and reasonable. These warm SSTs were probably caused by ... Article in Journal/Newspaper Planktonic foraminifera DataCite |
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Open Polar |
collection |
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ftdatacite |
language |
English |
description |
The Japan Sea experienced bottom water anoxia at the last glacial maximum (LGM) since it is surrounded by four shallow straits, the sill depths of which are close to, or shallower than, the drop in sea level (~120 m) that occurred then. A distinctive negative d18O excursion of planktonic foraminifera also took place during the LGM. This excursion has been interpreted from foraminiferal data as recording a drop in the paleosalinity of surface waters on the assumption of a constant low sea surface temperatures between 34 and 11 ka. We present here a profile of alkenone-based sea surface temperatures (alkenone-SSTs) over the past 36 kyr. Our results suggest that SSTs during the LGM were much higher than those previously assumed. After considering the factors that might affect estimation of alkenone-SSTs and comparisons of core-top alkenone-SSTs values with values for modern seawater we conclude that the higher alkenone-SSTs during the LGM are reliable and reasonable. These warm SSTs were probably caused by ... |
format |
Article in Journal/Newspaper |
author |
Seki, Osamu Kawamura, Kimitaka Ikehara, Minoru Nakatsuka, Takeshi Oba, Tadamichi |
spellingShingle |
Seki, Osamu Kawamura, Kimitaka Ikehara, Minoru Nakatsuka, Takeshi Oba, Tadamichi Sea surface temperature and age analysis from sediment core KT94-15_PC-9, XP98-PC-4 and XP98-PC-2 ... |
author_facet |
Seki, Osamu Kawamura, Kimitaka Ikehara, Minoru Nakatsuka, Takeshi Oba, Tadamichi |
author_sort |
Seki, Osamu |
title |
Sea surface temperature and age analysis from sediment core KT94-15_PC-9, XP98-PC-4 and XP98-PC-2 ... |
title_short |
Sea surface temperature and age analysis from sediment core KT94-15_PC-9, XP98-PC-4 and XP98-PC-2 ... |
title_full |
Sea surface temperature and age analysis from sediment core KT94-15_PC-9, XP98-PC-4 and XP98-PC-2 ... |
title_fullStr |
Sea surface temperature and age analysis from sediment core KT94-15_PC-9, XP98-PC-4 and XP98-PC-2 ... |
title_full_unstemmed |
Sea surface temperature and age analysis from sediment core KT94-15_PC-9, XP98-PC-4 and XP98-PC-2 ... |
title_sort |
sea surface temperature and age analysis from sediment core kt94-15_pc-9, xp98-pc-4 and xp98-pc-2 ... |
publisher |
PANGAEA |
publishDate |
2004 |
url |
https://dx.doi.org/10.1594/pangaea.802171 https://doi.pangaea.de/10.1594/PANGAEA.802171 |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_relation |
https://dx.doi.org/10.1016/s0146-6380(00)00151-0 https://dx.doi.org/10.1016/j.orggeochem.2003.10.011 |
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.80217110.1016/s0146-6380(00)00151-010.1016/j.orggeochem.2003.10.011 |
_version_ |
1810472618413785088 |