Palaeoproductivity evolution in the centre of the western Pacific warm pool during the last 250 ka
Abstract To reconstruct the palaeoproductivity evolution history of the centre of the western Pacific warm pool (WPWP) over the last 250 ka, multi‐proxies were analysed in sediment core WP7 recovered from the Ontong–Java Plateau. Palaeoproductivity evolution at the centre of the WPWP during the last...
Published in: | Journal of Quaternary Science |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2011
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1002/jqs.1471 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.1471 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.1471 |
id |
crwiley:10.1002/jqs.1471 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1002/jqs.1471 2024-10-13T14:02:37+00:00 Palaeoproductivity evolution in the centre of the western Pacific warm pool during the last 250 ka Li, Tiegang Zhao, Jingtao Nan, Qingyun Sun, Rongtao Yu, Xinke 2011 http://dx.doi.org/10.1002/jqs.1471 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.1471 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.1471 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Quaternary Science volume 26, issue 5, page 478-484 ISSN 0267-8179 1099-1417 journal-article 2011 crwiley https://doi.org/10.1002/jqs.1471 2024-09-17T04:48:00Z Abstract To reconstruct the palaeoproductivity evolution history of the centre of the western Pacific warm pool (WPWP) over the last 250 ka, multi‐proxies were analysed in sediment core WP7 recovered from the Ontong–Java Plateau. Palaeoproductivity evolution at the centre of the WPWP during the last 250 ka is closely related to glacial–interglacial cycles and the insolation controlled by precession. The glacial higher primary productivity relative to the interglacial conditions could have resulted from both thermocline shoaling associated with persistent El Niňo‐like conditions and the increased influx of dust resulting from intensified winter monsoon together with important changes in the thermocline. The minimum primary productivity values during the last three terminations could be resulted from deglacial thermocline deepening and intensified stratification associated with persistent La Niña‐like conditions, and the concurrent Neogloboquadrina dutertrei δ 13 C minimum events probably reflect the chemical signatures of Subantarctic Mode Water and Antarctic Intermediate Water. In addition, primary productivity values are also controlled by the thermocline variations resulting from El Niño/La Niña‐Southern Oscillation processes responding to precession forcing, and lead the δ 18 O by about 4 ka. The 33.1 ka, 19 ka and “half‐precession” periods are prominent in the palaeoproductivity records. Copyright © 2011 John Wiley & Sons, Ltd. Article in Journal/Newspaper Antarc* Antarctic Wiley Online Library Antarctic Pacific Journal of Quaternary Science 26 5 478 484 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract To reconstruct the palaeoproductivity evolution history of the centre of the western Pacific warm pool (WPWP) over the last 250 ka, multi‐proxies were analysed in sediment core WP7 recovered from the Ontong–Java Plateau. Palaeoproductivity evolution at the centre of the WPWP during the last 250 ka is closely related to glacial–interglacial cycles and the insolation controlled by precession. The glacial higher primary productivity relative to the interglacial conditions could have resulted from both thermocline shoaling associated with persistent El Niňo‐like conditions and the increased influx of dust resulting from intensified winter monsoon together with important changes in the thermocline. The minimum primary productivity values during the last three terminations could be resulted from deglacial thermocline deepening and intensified stratification associated with persistent La Niña‐like conditions, and the concurrent Neogloboquadrina dutertrei δ 13 C minimum events probably reflect the chemical signatures of Subantarctic Mode Water and Antarctic Intermediate Water. In addition, primary productivity values are also controlled by the thermocline variations resulting from El Niño/La Niña‐Southern Oscillation processes responding to precession forcing, and lead the δ 18 O by about 4 ka. The 33.1 ka, 19 ka and “half‐precession” periods are prominent in the palaeoproductivity records. Copyright © 2011 John Wiley & Sons, Ltd. |
format |
Article in Journal/Newspaper |
author |
Li, Tiegang Zhao, Jingtao Nan, Qingyun Sun, Rongtao Yu, Xinke |
spellingShingle |
Li, Tiegang Zhao, Jingtao Nan, Qingyun Sun, Rongtao Yu, Xinke Palaeoproductivity evolution in the centre of the western Pacific warm pool during the last 250 ka |
author_facet |
Li, Tiegang Zhao, Jingtao Nan, Qingyun Sun, Rongtao Yu, Xinke |
author_sort |
Li, Tiegang |
title |
Palaeoproductivity evolution in the centre of the western Pacific warm pool during the last 250 ka |
title_short |
Palaeoproductivity evolution in the centre of the western Pacific warm pool during the last 250 ka |
title_full |
Palaeoproductivity evolution in the centre of the western Pacific warm pool during the last 250 ka |
title_fullStr |
Palaeoproductivity evolution in the centre of the western Pacific warm pool during the last 250 ka |
title_full_unstemmed |
Palaeoproductivity evolution in the centre of the western Pacific warm pool during the last 250 ka |
title_sort |
palaeoproductivity evolution in the centre of the western pacific warm pool during the last 250 ka |
publisher |
Wiley |
publishDate |
2011 |
url |
http://dx.doi.org/10.1002/jqs.1471 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.1471 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.1471 |
geographic |
Antarctic Pacific |
geographic_facet |
Antarctic Pacific |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Journal of Quaternary Science volume 26, issue 5, page 478-484 ISSN 0267-8179 1099-1417 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/jqs.1471 |
container_title |
Journal of Quaternary Science |
container_volume |
26 |
container_issue |
5 |
container_start_page |
478 |
op_container_end_page |
484 |
_version_ |
1812818790725976064 |