Paleoproductivity evolution in the West Philippine Sea during the last 700 ka

IOCAS-IR

	Paleoproductivity evolution in the West Philippine Sea during the last 700 ka
	Tang Z(唐正); Li TG(李铁刚); Chang FM(常凤鸣); Nan QY(南青云); Li Q(李青)
发表期刊	Chinese Journal of Oceanology and Limnology
ISSN	0254-4059
	2013-03-15
出版年	2013
卷号	v.31 期号:02 页码:191-200
文献类型	CNKI期刊论文
摘要	In order to reconstruct the paleoproductivity evolution history of the West Philippine Sea during the last 700 ka,the vertical gradient of δ 13 C in dissolved inorganic carbon(δ 13 C between those of foraminifera Pulleniatina obliquiloculata and Cibicidoides wuellerstorfi) and planktonic foraminiferal assemblages were analysed in piston Core MD06-3047 retrieved from the Benham Rise(east of the Luzon Island).Paleoproductivity evolution in the West Philippine Sea during the last 700 ka is closely related to glacial-interglacial cycles and precession-controlled insolation.Controlling factors of paleoproductivity could have been both thermocline fluctuations related with ENSO-like processes and eolian input associated with East Asian winter monsoon,and the former could have been the primary factor.A higher productivity and a shallower thermocline coeval with the occurrence of low CO 2 concentrations in the EPICA Dome C ice core might indicate that biological export production in the low-latitude could act as a significant sink in the global carbon cycle,and modify atmospheric CO 2 concentrations.Spectral analysis further reveals that the paleoproductivity is mainly controlled by thermocline fluctuations subjected to ENSO processes responding to processional variability of insolation.High coherences in eccentricity,obliquity and precession periods further revealing the close link between thermocline fluctuations,paleoproductivity and atmospheric CO 2 levels.
关键词	paleoproductivity thermocline depth paleo-ENSO west Philippine Sea
CNKI专辑号	A;
CNKI专辑名称	基础科学;
CNKI专题号	A010;A011;
CNKI专题名称	海洋学;地质学;
分类号	P736.22
收录类别	中科院核心 ; 中科院扩展
语种	英文;
资助项目(基金）	Supported by the National Natural Science Foundation of China(Nos.41230959,41076030,40906038,41106042,41006032) ; the Pilot Project of the Knowledge Innovation Program of Chinese Academy of Sciences(No.KZCX2-YW-221) ; the Foundation of Key Laboratory of Marine Geology and Environment of Chinese Academy of Sciences(No.MGE2011KG01)
文献类型	CNKI期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/190938
专题	中国科学院海洋研究所
作者单位	1.KeyLaboratoryofMarineGeologyandEnvironment,InstituteofOceanology,ChineseAcademyofSciences 2.KeyLaboratoryofMarineHydrocarbonResourcesandEnvironmentalGeology,QingdaoInstituteofMarineGeology,MinistryofLandandResourcesofChina 3.GraduateUniversityofChineseAcademyofSciences 4.ShandongProvincialAnalysisandTestCenter
推荐引用方式 GB/T 7714	Tang Z,Li TG,Chang FM,et al. Paleoproductivity evolution in the West Philippine Sea during the last 700 ka. 2013.