The environmental index of the rare earth elements in conodonts:;Evidence from the Ordovician conodonts of the Huanghuachang Section,;Yichang area

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	The environmental index of the rare earth elements in conodonts:;Evidence from the Ordovician conodonts of the Huanghuachang Section,;Yichang area
	Chen XiaoHong 3; Zhou Lian ; Wei Kai ; Wang Jin ; Li ZhiHong
刊名	CHINESE SCIENCE BULLETIN
	2012
卷号	57 期号:4 页码:349-359
关键词	Ordovician conodonts rare earth elements palaeoenvironmental Yichang
ISSN号	887JN
英文摘要	High-resolution microanalysis was performed on conodonts collected from the Huanghuachang section in the Yichang area using laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). This region is regarded as a standard section for the division and correlation of the Ordovician system in southern China. The results show that the values of (La/Yb)(N) and (La/Sm)(N) decrease, while the values of delta Ce increase as seawater deepens and energy decreases. As the sedimentary environment changes from shallow-water carbonate platform to platform margin to open continental shelf to shelf basin, rare earth element distribution curves gradually transform from a right inclined pattern to a flat pattern to a left inclined pattern and a hat-shaped pattern. The present work proves that the values and distributive patterns of rare earth elements in conodonts correspond with the sedimentary environment, and therefore provide reliable evidence for the application of rare earth element concentrations of biogenic phosphates such as conodonts for palaeoenvironmental reconstructions.
学科主题	古生物学
WOS关键词	BIOGENIC APATITES ; SOUTH CHINA ; GEOCHEMISTRY ; SHALE ; SEAWATER ; PLATFORM ; CHERTS ; CERIUM ; OCEAN ; REE
WOS研究方向	Multidisciplinary Sciences
语种	英语
出版者	This work was supported by China Geological Survey (1212011121103 and;1212010710715) and the National Natural Science Foundation of China;(40972003 and 40673020).
WOS记录号	WOS:000299923300007
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/39471]
专题	中国地质调查局武汉地质调查中心
作者单位	1.Wuhan Inst Geol & Mineral Resources, Wuhan 430223, Peoples R China. 2.China Univ Geosci, State Key Lab, Wuhan 430074, Peoples R China. 3.中国地质调查局武汉地质调查中心
推荐引用方式 GB/T 7714	Chen XiaoHong,Zhou Lian,Wei Kai,et al. The environmental index of the rare earth elements in conodonts:;Evidence from the Ordovician conodonts of the Huanghuachang Section,;Yichang area[J]. CHINESE SCIENCE BULLETIN,2012,57(4):349-359.
APA	Chen XiaoHong,Zhou Lian,Wei Kai,Wang Jin,&Li ZhiHong.(2012).The environmental index of the rare earth elements in conodonts:;Evidence from the Ordovician conodonts of the Huanghuachang Section,;Yichang area.CHINESE SCIENCE BULLETIN,57(4),349-359.
MLA	Chen XiaoHong,et al."The environmental index of the rare earth elements in conodonts:;Evidence from the Ordovician conodonts of the Huanghuachang Section,;Yichang area".CHINESE SCIENCE BULLETIN 57.4(2012):349-359.