Paleomagnetic Secular Variation and Relative Paleointensity During the Holocene in South China-Huguangyan Maar Lake Revisited

doi:10.1029/2018GC008106

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	Paleomagnetic Secular Variation and Relative Paleointensity During the Holocene in South China-Huguangyan Maar Lake Revisited
	Sheng, Mei 1,2; Wang, Xisheng 1; Dekkers, Mark J.2; Chen, Yun 1; Chu, Guoqiang 3; Tang, Ling 4; Pei, Junling 1; Yang, Zhenyu 5
通讯作者	Wang, Xisheng(xishengwang@yahoo.com)
	2019-06-01
发表期刊	GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
ISSN	1525-2027
卷号	20 期号:6 页码:2681-2697
摘要	The scarcity of reliable paleomagnetic secular variation (PSV) records from East Asia especially from low-latitude regions impedes better understanding of global PSV mechanisms. Here we report on a radiocarbon-dated Holocene PSV record from a composite 6.7-m-long core collected from the high-sedimentation-rate Huguangyan Maar Lake (HML) in subtropical-tropical South China. Rock magnetic results demonstrate that the natural remanent magnetization resides in single-domain magnetite. Alternating field demagnetization experiments at 1-cm spacing on u-channel samples reveal six distinct inclination highs at 7,500 BCE, 5,100 BCE, 4,600 BCE, 3,600-3,400 BCE, 1,600-1,200 BCE, and 600-800 CE; three inclination lows at 4,800 BCE, 600-300 BCE, and 1,000-1,300 CE; and three eastward declination trends at 3,600-3,200 BCE, 2,600-2,400 BCE, and 400 BCE to 200 CE. The similarity between the HML PSV record and other independently dated records from East Asia and geomagnetic field models corroborates the robustness of our age model and Holocene PSV record. Strikingly, centennial- to millennial-scale PSV features of the HML are comparable, within age uncertainties, with other Holocene records from Europe, North America, and Canada, suggesting that such directional patterns are likely to be hemispheric in scale. Although relative paleointensity data of HML are affected by environmental factors (e.g., organic matter diagenesis), the record still provides a regionally important new PSV reference curve whose conspicuous features may serve as stratigraphic markers for East Asian paleorecords.
关键词	paleomagnetic secular variation relative paleointensity Holocene East Asia Northern Hemisphere
DOI	10.1029/2018GC008106
关键词[WOS]	GEOMAGNETIC INTENSITY VARIATIONS ; REVERSAL CURVE DIAGRAMS ; ARCHAEOMAGNETIC JERKS ; MAGNETIC-PROPERTIES ; ASIAN SUMMER ; FLUX LOBES ; GRAIN-SIZE ; FIELD ; RECORD ; SEDIMENTS
收录类别	SCI ; SCI
语种	英语
资助项目	NSFC[41274074] ; NSFC[41371219] ; China Geological Survey[DD20160306] ; China Scholarship Council
WOS研究方向	Geochemistry & Geophysics
项目资助者	NSFC ; China Geological Survey ; China Scholarship Council
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000477582400008
出版者	AMER GEOPHYSICAL UNION
引用统计	被引频次：7[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/361006/13687
专题	加速器质谱中心
通讯作者	Wang, Xisheng
作者单位	1.Chinese Acad Geol Sci, Inst Geomech, MNR Key Lab Paleomagnetism & Paleotecton Reconstr, Beijing, Peoples R China 2.Univ Utrecht, Dept Earth Sci, Paleomagnet Lab Ft Hoofddijk, Utrecht, Netherlands 3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing, Peoples R China 4.Chinese Acad Sci, Inst Earth Environm, Xian, Shaanxi, Peoples R China 5.Capital Normal Univ, Coll Resources Environm & Tourism, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Sheng, Mei,Wang, Xisheng,Dekkers, Mark J.,et al. Paleomagnetic Secular Variation and Relative Paleointensity During the Holocene in South China-Huguangyan Maar Lake Revisited[J]. GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS,2019,20(6):2681-2697.
APA	Sheng, Mei.,Wang, Xisheng.,Dekkers, Mark J..,Chen, Yun.,Chu, Guoqiang.,...&Yang, Zhenyu.(2019).Paleomagnetic Secular Variation and Relative Paleointensity During the Holocene in South China-Huguangyan Maar Lake Revisited.GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS,20(6),2681-2697.
MLA	Sheng, Mei,et al."Paleomagnetic Secular Variation and Relative Paleointensity During the Holocene in South China-Huguangyan Maar Lake Revisited".GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS 20.6(2019):2681-2697.