气候变化领域集成服务门户(CCPortal): Predominance of even carbon-numbered n-alkanes from lacustrine sediments in Linxia Basin, NE Tibetan Plateau: Implications for climate change

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DOI	10.1016/j.apgeochem.2010.07.002
	Predominance of even carbon-numbered n-alkanes from lacustrine sediments in Linxia Basin, NE Tibetan Plateau: Implications for climate change
	Wang, Yongli; Fang, Xiaomin; Zhang, Tongwei; Li, Yuanmao; Wu, Yingqin; He, Daxiang; Wang, Youxiao
通讯作者	Fang, XM (通讯作者)
发表日期	2010
ISSN	0883-2927
起始页码	1478
结束页码	1486
卷号	25 期号:10
英文摘要	This study reports the first observation of predominant even C-numbered n-alkanes from sediments in the continuous lacustrine-sedimentary section (Maogou) from the Late Miocene to the Early Pliocene (13-4.4 Ma) in the Linxia Basin, NE Tibetan Plateau. The n-alkanes showed a bimodal distribution that is characterised by a centre at n-C-16-n-C-20 with maximum values at n-C-18 and n-C-27-n-C-31 as well as at n-C-29. The first mode shows a strong even C-number predominance (OEP16-20 0.34-0.66). In contrast, the second mode has a strong odd C-number predominance (OEP27-31 1.20-2.45). Certain types of special autochthonous bacteria are a possible source for this distribution of even C-numbered n-alkanes in lacustrine sediments. These bacteria may have a high production rate in weak oxic-anoxic and arid depositional environments, in which a variety of geochemical parameters have recorded palaeoclimate change. (C) 2010 Published by Elsevier Ltd.
关键词	CHINESE-LOESS-PLATEAU LONG-CHAIN ALKENONES ORGANIC-MATTER SURFACE SEDIMENTS LAKE-SEDIMENTS ENVIRONMENTAL IMPLICATIONS GEOCHEMICAL SIGNIFICANCE MOLECULAR FOSSILS ODD PREDOMINANCE MODERN SOILS
语种	英语
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000283618400002
来源期刊	APPLIED GEOCHEMISTRY
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/257772
推荐引用方式 GB/T 7714	Wang, Yongli,Fang, Xiaomin,Zhang, Tongwei,et al. Predominance of even carbon-numbered n-alkanes from lacustrine sediments in Linxia Basin, NE Tibetan Plateau: Implications for climate change[J]. 中国科学院青藏高原研究所,2010,25(10).
APA	Wang, Yongli.,Fang, Xiaomin.,Zhang, Tongwei.,Li, Yuanmao.,Wu, Yingqin.,...&Wang, Youxiao.(2010).Predominance of even carbon-numbered n-alkanes from lacustrine sediments in Linxia Basin, NE Tibetan Plateau: Implications for climate change.APPLIED GEOCHEMISTRY,25(10).
MLA	Wang, Yongli,et al."Predominance of even carbon-numbered n-alkanes from lacustrine sediments in Linxia Basin, NE Tibetan Plateau: Implications for climate change".APPLIED GEOCHEMISTRY 25.10(2010).