RADIOCARBON AND STABLE CARBON ISOTOPE ANALYSES OF LAND SNAILS FROM THE CHINESE LOESS PLATEAU: ENVIRONMENTAL AND CHRONOLOGICAL IMPLICATIONS

	RADIOCARBON AND STABLE CARBON ISOTOPE ANALYSES OF LAND SNAILS FROM THE CHINESE LOESS PLATEAU: ENVIRONMENTAL AND CHRONOLOGICAL IMPLICATIONS
	Xu, Bing 1; Gu, Zhaoyan 1; Han, Jingtai 1; Liu, Zongxiu 1; Pei, Yunpeng 2; Lu, Yanwu 1; Wu, Naiqin 1; Chen, Yongfu 1
刊名	RADIOCARBON
	2010
卷号	52 期号:1 页码:149-156
ISSN号	0033-8222
文献子类	Article
英文摘要	Paired radiocarbon and stable carbon analyses have been carried out on aragonite shells and organic soft bodies of snails from the Chinese Loess Plateau in order to explore the possibility of using these kinds of samples as environmental and chronological indicators. Results show that the soft bodies exhibit (14)C concentrations similar to those of plant leaves, indicating that carbon in the soft bodies is fixed front organic diets. The aragonite shells are depleted in (14)C compared to the soft bodies due to ingestion of (14)C-depleted carbonate. This depletion shows a consistent pattern across the Chinese Loess Plateau, implying a good potential for the snail shells to be applicable for (14)C dating with a simple correction. The delta(13)C values measured for aragonite shells display a linear relationship with those obtained for the soft bodies with a constant offset. In addition, the carbon derived from organic diets accounts for more than 70% of the total shell carbon. This filet suggests that stable carbon isotope composition of aragonite shells mainly reflects that of organic diet, and could be used as a reliable indicator of paleodiet in the Chinese Loess Plateau.
WOS关键词	SOUTHERN GREAT-PLAINS ; SHELL CARBONATE ; AGE ANOMALIES ; HELIX-ASPERSA ; FRACTIONATION ; C-14 ; DIET ; GASTROPODS ; DELTA-C-13 ; RATIOS
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	UNIV ARIZONA DEPT GEOSCIENCES
WOS记录号	WOS:000276952100012
资助机构	NSFC(40672118 ; NSFC(40672118 ; 40673072) ; 40673072) ; NSFC(40672118 ; NSFC(40672118 ; 40673072) ; 40673072) ; NSFC(40672118 ; NSFC(40672118 ; 40673072) ; 40673072) ; NSFC(40672118 ; NSFC(40672118 ; 40673072) ; 40673072)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/72977]
专题	中国科学院地质与地球物理研究所
通讯作者	Xu, Bing
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 10029, Peoples R China 2.China Univ Geosci, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Xu, Bing,Gu, Zhaoyan,Han, Jingtai,et al. RADIOCARBON AND STABLE CARBON ISOTOPE ANALYSES OF LAND SNAILS FROM THE CHINESE LOESS PLATEAU: ENVIRONMENTAL AND CHRONOLOGICAL IMPLICATIONS[J]. RADIOCARBON,2010,52(1):149-156.
APA	Xu, Bing.,Gu, Zhaoyan.,Han, Jingtai.,Liu, Zongxiu.,Pei, Yunpeng.,...&Chen, Yongfu.(2010).RADIOCARBON AND STABLE CARBON ISOTOPE ANALYSES OF LAND SNAILS FROM THE CHINESE LOESS PLATEAU: ENVIRONMENTAL AND CHRONOLOGICAL IMPLICATIONS.RADIOCARBON,52(1),149-156.
MLA	Xu, Bing,et al."RADIOCARBON AND STABLE CARBON ISOTOPE ANALYSES OF LAND SNAILS FROM THE CHINESE LOESS PLATEAU: ENVIRONMENTAL AND CHRONOLOGICAL IMPLICATIONS".RADIOCARBON 52.1(2010):149-156.