Paleoweathering and paleoenvironmental change recorded in lacustrine sediments of the early to middle Eocene in Fushun Basin, Northeast China

doi:10.1002/2016GC006573

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 中国科学院新生代地质与环境重点实验室

	Paleoweathering and paleoenvironmental change recorded in lacustrine sediments of the early to middle Eocene in Fushun Basin, Northeast China
	Chen, Zuoling; Ding, Zhongli; Tang, Zihua; Yang, Shiling; Wang, Xu; Cui, Linlin
刊名	GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
	2017
卷号	18 期号:1 页码:41-51
关键词	Paleoweathering Eocene Carbon Cycle Global Change Fushun Basin
ISSN号	1525-2027
DOI	10.1002/2016GC006573
文献子类	Article
英文摘要	Deciphering the long-term interaction among continental silicate weathering, global climate, and atmospheric CO2 concentrations is helpful in understanding the mechanisms of the Cenozoic climate change and accessing the future climatic and environmental response to anthropogenic carbon emissions. The Eocene, which is characterized by the Early Eocene Climatic Optimum (EECO) and the following global cooling, represents an ideal test case. Here we generate geochemical data of the Eocene lacustrine sediments from the Fushun Basin, northeast China, to explore the regional climatic response to the global climate change. The chemical index of alteration (CIA) and plagioclase index of alteration (PIA) consistently show a gradual, long-term decrease, indicating a climatic transition from warm and humid to relatively cold and arid during the Eocene in the Fushun Basin. This climatic trend is broadly coincident with the global cooling and decreasing CO2 concentration, implying that the regional climate is closely correlated with the global climate change over geological time scales. Additionally, the extreme silicate weathering and high lake productivity as reflected by relatively positive C-13 values of lacustrine organic matter are associated with the EECO. This consistency may demonstrate that enhanced continental weathering and lake productivity had served as effective sinks to lower atmospheric CO2 across the EECO. Collectively, our new geochemical data add supporting evidence for a long-term, close coupling among continental silicate weathering, climate, and global carbon cycle during the Eocene.
WOS关键词	OIL-SHALE ; CLIMATE EVOLUTION ; ATMOSPHERIC CO2 ; ORGANIC-MATTER ; GEOCHEMICAL PROXIES ; PALEOGENE EVOLUTION ; C-4 PHOTOSYNTHESIS ; LATE PALEOCENE ; CARBON-CYCLE ; NE CHINA
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000395186600003
资助机构	(973) National Basic Research Program of China(2013CB956404) ; Natural Science Foundation of China(41502169) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB03020503) ; China Postdoctoral Science Foundation(2015M570143) ; (973) National Basic Research Program of China(2013CB956404) ; Natural Science Foundation of China(41502169) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB03020503) ; China Postdoctoral Science Foundation(2015M570143) ; (973) National Basic Research Program of China(2013CB956404) ; Natural Science Foundation of China(41502169) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB03020503) ; China Postdoctoral Science Foundation(2015M570143) ; (973) National Basic Research Program of China(2013CB956404) ; Natural Science Foundation of China(41502169) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB03020503) ; China Postdoctoral Science Foundation(2015M570143)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/53056]
专题	地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
通讯作者	Chen, Zuoling
作者单位	Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Chen, Zuoling,Ding, Zhongli,Tang, Zihua,et al. Paleoweathering and paleoenvironmental change recorded in lacustrine sediments of the early to middle Eocene in Fushun Basin, Northeast China[J]. GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS,2017,18(1):41-51.
APA	Chen, Zuoling,Ding, Zhongli,Tang, Zihua,Yang, Shiling,Wang, Xu,&Cui, Linlin.(2017).Paleoweathering and paleoenvironmental change recorded in lacustrine sediments of the early to middle Eocene in Fushun Basin, Northeast China.GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS,18(1),41-51.
MLA	Chen, Zuoling,et al."Paleoweathering and paleoenvironmental change recorded in lacustrine sediments of the early to middle Eocene in Fushun Basin, Northeast China".GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS 18.1(2017):41-51.