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

doi:10.1016/j.quascirev.2018.09.020

CORC > 地球环境研究所 > 中国科学院地球环境研究所 > 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
	Fu, YC (Fu, Yunchong)[ 1,3,4 ]; Xie, XJ (Xie, Xingjun)[ 1,3,4 ]; Zhao, GQ (Zhao, Guoqing)[ 1,3,4 ]; Kong, XH (Kong, Xianghui)[ 1,3,4 ]; Qiang, XK (Qiang, Xiaoke)[ 1 ]; Xian, F (Xian, Feng)[ 1,3,4 ]; Zhou, WJ (Zhou, Weijian)[ 1,3,4,5 ]; Du, YJ (Du, Yajuan)[ 1,2,3,4 ]
刊名	QUATERNARY SCIENCE REVIEWS
	2018-11-01
卷号	199 页码:41-48
关键词	Heqing paleolake 10Be Cosmogenic isotopes Matuyama-brunhes transition
DOI	10.1016/j.quascirev.2018.09.020
文献子类	期刊论文
英文摘要	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.
语种	英语
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/9669]
专题	地球环境研究所_黄土与第四纪地质国家重点实验室（2010~）
作者单位	1.Open Studio for Oceanic-Continental Climate and Environment Changes (OCCEC), Qingdao National Laboratory for Marine Science and Technology, Qingdao, China 2.Shaanxi Key Laboratory of Accelerator Mass Spectrometry Technology and Application, Xi'an AMS Center of IEECAS & Xi'an Jiaotong University, Xi'an, 710061, China; 3.University of Chinese Academy of Sciences, Beijing, 100049, China; 4.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, 710061, China;
推荐引用方式 GB/T 7714	Fu, YC ,Xie, XJ ,Zhao, GQ ,et al. Be-10 signature of the Matuyama-Brunhes transition from the Heqing paleolake basin[J]. QUATERNARY SCIENCE REVIEWS,2018,199:41-48.
APA	Fu, YC .,Xie, XJ .,Zhao, GQ .,Kong, XH .,Qiang, XK .,...&Du, YJ .(2018).Be-10 signature of the Matuyama-Brunhes transition from the Heqing paleolake basin.QUATERNARY SCIENCE REVIEWS,199,41-48.
MLA	Fu, YC ,et al."Be-10 signature of the Matuyama-Brunhes transition from the Heqing paleolake basin".QUATERNARY SCIENCE REVIEWS 199(2018):41-48.