Apparent timing and duration of the Matuyama-Brunhesgeomagnetic reversal in Chinese loess | |
Zhao,H(Zhao,Hui)[1,2]; Sun,YB(Sun,Youbin)[1]; Qiang,XK(Qiang,Xiaoke)[1] | |
刊名 | Geochemistry, Geophysics, Geosystems
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2014-11 | |
卷号 | 15期号:11页码:4468-4480 |
DOI | 10.1002/2014GC005497 |
文献子类 | 期刊论文 |
英文摘要 | The Matuyama-Brunhes (MB) geomagnetic reversal in Chinese loess has been studied extensively as an important boundary for land-ocean stratigraphic and paleoclimatic correlations. However, the apparent timing and duration of the MB boundary remain controversial in Chinese loess deposits due to its inconsistent stratigraphic position and the uncertain chronologies. Here we synthesized high-resolution paleomagnetic records from four loess sequences in the central Chinese Loess Plateau and synchronized the loess-paleosol chronology by matching the grain-size variations to orbitally tuned grain-size time series. The synthesized paleomagnetic results reveal consistent features of the MB transition in Chinese loess, including the stratigraphic position (L8/S8 transition), timing ( 808–826 ka), duration ( 14–16 ka), and rapid directional oscillations. Compared with the MB transition in marine records (770–775 ka), the timing of the MB transition is relatively older and longer in Chinese loess, due to a complex interplay between different remanence acquisition mechanisms which occurred during the course of postdepositional physical and chemical processes. |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://ir.ieecas.cn/handle/361006/9863] ![]() |
专题 | 地球环境研究所_古环境研究室 |
通讯作者 | Sun,YB(Sun,Youbin)[1] |
作者单位 | 1.School of Resources and Environment, University of Chinese Academy of Sciences, Beijing, China 2.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences,Xian, China; |
推荐引用方式 GB/T 7714 | Zhao,H,Sun,YB,Qiang,XK. Apparent timing and duration of the Matuyama-Brunhesgeomagnetic reversal in Chinese loess[J]. Geochemistry, Geophysics, Geosystems,2014,15(11):4468-4480. |
APA | Zhao,H,Sun,YB,&Qiang,XK.(2014).Apparent timing and duration of the Matuyama-Brunhesgeomagnetic reversal in Chinese loess.Geochemistry, Geophysics, Geosystems,15(11),4468-4480. |
MLA | Zhao,H,et al."Apparent timing and duration of the Matuyama-Brunhesgeomagnetic reversal in Chinese loess".Geochemistry, Geophysics, Geosystems 15.11(2014):4468-4480. |
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