Palaeoproductivity evolution in the centre of the western Pacific warm pool during the last 250 ka

doi:10.1002/jqs.1471

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	Palaeoproductivity evolution in the centre of the western Pacific warm pool during the last 250 ka
	Li, Tiegang1 ; Zhao, Jingtao 2,3; Nan, Qingyun 1; Sun, Rongtao 4; Yu, Xinke 1; Li, TG (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China
刊名	JOURNAL OF QUATERNARY SCIENCE
	2011-07-01
卷号	26 期号:5 页码:478-484
关键词	Earth's Orbital Period Palaeo-enso Palaeoproductivity Western Pacific Warm Pool
ISSN号	0267-8179
DOI	10.1002/jqs.1471
文献子类	Article
英文摘要	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 Nino-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 Nina-like conditions, and the concurrent Neogloboquadrina dutertrei delta C-13 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 Nino/La Nina-Southern Oscillation processes responding to precession forcing, and lead the delta O-18 by about 4 ka. The 33.1 ka, 19 ka and "half-precession" periods are prominent in the palaeoproductivity records. Copyright (C) 2011 John Wiley & Sons, Ltd.; 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 Nino-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 Nina-like conditions, and the concurrent Neogloboquadrina dutertrei delta(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 Nino/La Nina-Southern Oscillation processes responding to precession forcing, and lead the delta(18)O by about 4 ka. The 33.1 ka, 19 ka and "half-precession" periods are prominent in the palaeoproductivity records. Copyright (C) 2011 John Wiley & Sons, Ltd.
学科主题	Geology ; Paleontology
URL标识	查看原文
语种	英语
WOS记录号	WOS:000293098300005
公开日期	2012-07-03
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/11510]
专题	海洋研究所_海洋地质与环境重点实验室
通讯作者	Li, TG (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 2.Minist Land & Resources, Key Lab Marine Hydrocarbon Resources & Environm G, Qingdao 266071, Peoples R China 3.Minist Land & Resources, Qingdao Inst Marine Geol, Qingdao 266071, Peoples R China 4.Shandong Univ Technol, Sch Resources & Environm Engn, Zibo 255049, Peoples R China
推荐引用方式 GB/T 7714	Li, Tiegang,Zhao, Jingtao,Nan, Qingyun,et al. Palaeoproductivity evolution in the centre of the western Pacific warm pool during the last 250 ka[J]. JOURNAL OF QUATERNARY SCIENCE,2011,26(5):478-484.
APA	Li, Tiegang,Zhao, Jingtao,Nan, Qingyun,Sun, Rongtao,Yu, Xinke,&Li, TG .(2011).Palaeoproductivity evolution in the centre of the western Pacific warm pool during the last 250 ka.JOURNAL OF QUATERNARY SCIENCE,26(5),478-484.
MLA	Li, Tiegang,et al."Palaeoproductivity evolution in the centre of the western Pacific warm pool during the last 250 ka".JOURNAL OF QUATERNARY SCIENCE 26.5(2011):478-484.