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Paleosecular variations of the geomagnetic field during the Holocene from Eastern Asia
Yang, Xiaoqiang; Liu, Qingsong; Yu, Kefu; Huang, Wenya; Zhu, Liyan; Zhang, Huodai; Liu, Jian; Li, JinHua; Yang, XQ (reprint author), Sun Yat Sen Univ, Dept Earth Sci, Guangzhou 510275, Guangdong, Peoples R China.; Liu, QS (reprint author), Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China.
2016
发表期刊PHYSICS OF THE EARTH AND PLANETARY INTERIORS
卷号254页码:25-36
摘要High-resolution paleomagnetic secular variation (PSV) records bear great information of dynamics processes of the Earth's geomagnetic field, and can be further used for inter-profile correlation and for dating sediments. However, effects of changes in the depositional environment on PSV records have not been fully determined. This study constructed Holocene PSV records for the gravity piston core (ZSQD34) obtained from the northern South China Sea. Rock magnetic and Transmission Electron Microscope (TEM) results indicate that single (SD) and PSD domain magnetites are the main carrier of the natural remanent magnetization. Comparable to the records derived from the freshwater lakes and the modeling results, we observed that direction curves from these two environments of contrasting salinity content are rather consistent. The direction curves are independent of the constructed salinity. However, the gradual increasing trend of relative intensity since about 5 kyr might be related to the decreasing sea surface salinity. Furthermore, on the centennial and millennial time scale, the relative intensity and salinity show some positive relation, suggesting a potential contribution of salinity to the paleomagnetic relative intensity recording processes. (C) 2016 Elsevier B.V. All rights reserved.
部门归属[Yang, Xiaoqiang; Huang, Wenya; Zhu, Liyan] Sun Yat Sen Univ, Dept Earth Sci, Guangzhou 510275, Guangdong, Peoples R China; [Liu, Qingsong; Li, JinHua] Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China; [Liu, Qingsong] Natl Oceanog Lab, Funct Lab Marine Geol, Qingdao 266061, Peoples R China; [Yu, Kefu] South China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China; [Zhang, Huodai; Liu, Jian] Guangzhou Marine Geol Survey, Guangzhou 510075, Guangdong, Peoples R China
关键词South China Sea Paleosecular Variations Sea Surface Water Salinity
学科领域Geochemistry & Geophysics
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/15455
专题中科院边缘海地质重点实验室
通讯作者Yang, XQ (reprint author), Sun Yat Sen Univ, Dept Earth Sci, Guangzhou 510275, Guangdong, Peoples R China.; Liu, QS (reprint author), Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China.
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GB/T 7714
Yang, Xiaoqiang,Liu, Qingsong,Yu, Kefu,et al. Paleosecular variations of the geomagnetic field during the Holocene from Eastern Asia[J]. PHYSICS OF THE EARTH AND PLANETARY INTERIORS,2016,254:25-36.
APA Yang, Xiaoqiang.,Liu, Qingsong.,Yu, Kefu.,Huang, Wenya.,Zhu, Liyan.,...&Liu, QS .(2016).Paleosecular variations of the geomagnetic field during the Holocene from Eastern Asia.PHYSICS OF THE EARTH AND PLANETARY INTERIORS,254,25-36.
MLA Yang, Xiaoqiang,et al."Paleosecular variations of the geomagnetic field during the Holocene from Eastern Asia".PHYSICS OF THE EARTH AND PLANETARY INTERIORS 254(2016):25-36.
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