IGGCAS OpenIR  > 新生代地质与环境院重点实验室
Paleomagnetic Secular Variation and Relative Paleointensity During the Holocene in South China-Huguangyan Maar Lake Revisited
Sheng, Mei1,2; Wang, Xisheng1; Dekkers, Mark J.2; Chen, Yun1; Chu, Guoqiang3; Tang, Ling4; Pei, Junling1; Yang, Zhenyu5
2019-06-01
Source PublicationGEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
ISSN1525-2027
Volume20Issue:6Pages:2681-2697
AbstractThe 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.
Keywordpaleomagnetic secular variation relative paleointensity Holocene East Asia Northern Hemisphere
DOI10.1029/2018GC008106
Funding OrganizationNSFC ; NSFC ; China Geological Survey ; China Geological Survey ; China Scholarship Council ; China Scholarship Council ; NSFC ; NSFC ; China Geological Survey ; China Geological Survey ; China Scholarship Council ; China Scholarship Council ; NSFC ; NSFC ; China Geological Survey ; China Geological Survey ; China Scholarship Council ; China Scholarship Council ; NSFC ; NSFC ; China Geological Survey ; China Geological Survey ; China Scholarship Council ; China Scholarship Council
WOS KeywordGEOMAGNETIC INTENSITY VARIATIONS ; REVERSAL CURVE DIAGRAMS ; ARCHAEOMAGNETIC JERKS ; MAGNETIC-PROPERTIES ; ASIAN SUMMER ; FLUX LOBES ; GRAIN-SIZE ; FIELD ; RECORD ; SEDIMENTS
Language英语
Funding ProjectNSFC[41274074] ; NSFC[41371219] ; China Geological Survey[DD20160306] ; China Scholarship Council
Funding OrganizationNSFC ; NSFC ; China Geological Survey ; China Geological Survey ; China Scholarship Council ; China Scholarship Council ; NSFC ; NSFC ; China Geological Survey ; China Geological Survey ; China Scholarship Council ; China Scholarship Council ; NSFC ; NSFC ; China Geological Survey ; China Geological Survey ; China Scholarship Council ; China Scholarship Council ; NSFC ; NSFC ; China Geological Survey ; China Geological Survey ; China Scholarship Council ; China Scholarship Council
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000477582400008
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/92973
Collection新生代地质与环境院重点实验室
Corresponding AuthorWang, Xisheng
Affiliation1.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
Recommended Citation
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.
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