Temperature changes reconstructed from branched GDGTs on the central Loess Plateau during the past 130-5 ka

doi:10.1016/j.quaint.2018.04.045

ISL OpenIR > 盐湖地质与环境实验室

	Temperature changes reconstructed from branched GDGTs on the central Loess Plateau during the past 130-5 ka
	Zeng, Fangming; Yang, Huan
	2019-02-01
发表期刊	QUATERNARY INTERNATIONAL
ISSN	1040-6182
卷号	503 页码:3-9
摘要	This study investigated the glycerol dialkyl glycerol tetraethers (GDGTs) in a loess-paleosol sequence (LPS) to quantitatively reconstruct the mean annual air temperature (MAT) on the central Chinese Loess Plateau (CLP) during the past 130-5 ka. The results show that: (1) MAT variations reconstructed by global MBT (methylation index of branched tetraethers) and CBT (cyclisation ratio of branched tetraethers) transfer functions at Xifeng range from 7.3 degrees C to 28.4 degrees C. The MAT variation on the central CLP (Xifeng site) is between the previously reported MAT variations on the western (Yuanbao site) and eastern CLP (Mangshan site), in agreement with the pattern that temperature increases from the northwestern CLP to the southeastern CLP. (2) MAT variations estimated by transfer functions of global MBT-CBT, global MBT'-CBT and Chinese MBT-CBT for LPS are nearly all higher than the modern MAT at Xifeng, indicating that the reconstructed MAT values are probably over-estimated. (3) The maximum value of magnetic susceptibility at Xifeng lagged that of the MAT derived by MBTCBT proxy during the last interglacial (similar to 9 ka lag) and since the last deglacial (similar to 6 ka lag).
DOI	10.1016/j.quaint.2018.04.045
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/34009
专题	盐湖地质与环境实验室中国科学院青海盐湖研究所
推荐引用方式 GB/T 7714	Zeng, Fangming,Yang, Huan. Temperature changes reconstructed from branched GDGTs on the central Loess Plateau during the past 130-5 ka[J]. QUATERNARY INTERNATIONAL,2019,503:3-9.
APA	Zeng, Fangming,&Yang, Huan.(2019).Temperature changes reconstructed from branched GDGTs on the central Loess Plateau during the past 130-5 ka.QUATERNARY INTERNATIONAL,503,3-9.
MLA	Zeng, Fangming,et al."Temperature changes reconstructed from branched GDGTs on the central Loess Plateau during the past 130-5 ka".QUATERNARY INTERNATIONAL 503(2019):3-9.

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