Be-10 signature of the Matuyama-Brunhes transition from the Heqing paleolake basin

doi:10.1016/j.quascirev.2018.09.020

IEECAS OpenIR > 黄土与第四纪地质国家重点实验室（2010~）

	Be-10 signature of the Matuyama-Brunhes transition from the Heqing paleolake basin
	Du, YJ (Du, Yajuan)[ 1,2,3,4 ]; Zhou, WJ (Zhou, Weijian)[ 1,3,4,5 ]; Xian, F (Xian, Feng)[ 1,3,4 ]; Qiang, XK (Qiang, Xiaoke)[ 1 ]; Kong, XH (Kong, Xianghui)[ 1,3,4 ]; Zhao, GQ (Zhao, Guoqing)[ 1,3,4 ]; Xie, XJ (Xie, Xingjun)[ 1,3,4 ]; Fu, YC (Fu, Yunchong)[ 1,3,4 ]
	2018-11-01
发表期刊	QUATERNARY SCIENCE REVIEWS
卷号	199 页码:41-48
文章类型	期刊论文
摘要	We present a new 10Be record spanning the Matuyama-Brunhes (M-B) reversal from the Heqing paleolake basin in southern China. It provides a robust proxy for past geomagnetic variations that can be compared with paleomagnetic records. The M-B transition is identified as a pronounced maximum of authigenic 10Be/9Be ratio between 768.6 and 778.5 ka, that is consistent with all other available 10Be-proxy records from marine, ice and loess archives. However, it is offset by approximately 0–60 cm depth from the magnetic signature of the polarity transition recorded in the same sediments. We attribute this offset to the lock-in effect of the remanence acquisition process, which is similar to the phenomenon that exists in marine sediments. We suggest that after eliminating the climatic-hydrological signal, the Heqing sediments may be used as an archive for atmospheric 10Be production rate changes. The combination of magnetic remanence measurements and the cosmogenic 10Be allows for a more precise geochronology of geomagnetic polarity reversals.
关键词	Heqing paleolake 10Be Cosmogenic isotopes Matuyama-brunhes transition
DOI	10.1016/j.quascirev.2018.09.020
收录类别	SCI
语种	英语
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/9669
专题	黄土与第四纪地质国家重点实验室（2010~）
作者单位	1.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, 710061, China; 2.University of Chinese Academy of Sciences, Beijing, 100049, China; 3.Shaanxi Key Laboratory of Accelerator Mass Spectrometry Technology and Application, Xi'an AMS Center of IEECAS & Xi'an Jiaotong University, Xi'an, 710061, China; 4.Open Studio for Oceanic-Continental Climate and Environment Changes (OCCEC), Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
推荐引用方式 GB/T 7714	Du, YJ ,Zhou, WJ ,Xian, F ,et al. Be-10 signature of the Matuyama-Brunhes transition from the Heqing paleolake basin[J]. QUATERNARY SCIENCE REVIEWS,2018,199:41-48.
APA	Du, YJ .,Zhou, WJ .,Xian, F .,Qiang, XK .,Kong, XH .,...&Fu, YC .(2018).Be-10 signature of the Matuyama-Brunhes transition from the Heqing paleolake basin.QUATERNARY SCIENCE REVIEWS,199,41-48.
MLA	Du, YJ ,et al."Be-10 signature of the Matuyama-Brunhes transition from the Heqing paleolake basin".QUATERNARY SCIENCE REVIEWS 199(2018):41-48.