Geomagnetic paleointensity variations in the northern South China Sea since the Late Pleistocene
文献类型：期刊论文
| 作者 | Yang, Xiaoqiang2,3; Su, Zhihua1; Wei, Gangjian4; Zhang, Tingwei; Chen, Qiong; Ye, Yulan |
| 刊名 | QUATERNARY SCIENCE REVIEWS
 |
| 出版日期 | 2024-01-15 |
| 卷号 | 324页码:15 |
| 关键词 | Relative paleointensity Stacked master curve SPIS-150 Terrestrial and biogenic magnetite South China sea |
| ISSN号 | 0277-3791 |
| DOI | 10.1016/j.quascirev.2023.108452 |
| 英文摘要 | The geomagnetic field plays multiple roles in the investigation of the geodynamic processes of Earth's internal fluids and dating of deposition sequences. However, discrepancies in geomagnetic field intensity on suborbital and millennial time scales across different regions have hindered discussions on these topics. In this study, we constructed a master relative intensity curve (SPIS-150) covering the past similar to 150 kyr by stacking the data from a new core (PC27) with published intensity curves for the northern South China Sea based on the chronology established through the oxygen isotope stratigraphy and relative paleointensity (RPI) correlation. Rock magnetic experiment results reveal that the sediments effectively record geomagnetic field information, although the magnetic minerals are primarily composed of terrestrial and biogenic magnetite. The stacked relative paleointensity (SPIS-150) exhibits a consistent pattern with the global stacked master curve on the orbital time scale, reflecting dipole-dominated changes in the geomagnetic field. However, specific features, such as the profound intensity lows between 75 and 85 kyr and a relatively low peak during 110-120 kyr, display potential differences with the global stacked virtual axial dipole moment (VADM) curves. Additionally, the disagreement in RPI across different regions have emerged significantly since about 25 kyr. Our record appears to align with the western tropical Pacific Ocean and the southern hemisphere but, to some extent, contradicts the stacked VADM from the northern hemisphere. This pattern may indicate the possible influence of reverse flux patches along the magnetic equator and normal flux patches in the north hemisphere. |
| WOS研究方向 | Physical Geography ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001134236700001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/76078]  |
| 专题 | 中国科学院广州地球化学研究所 |
| 通讯作者 | Yang, Xiaoqiang |
| 作者单位 | 1.Guizhou Univ Finance & Econ, Guiyang 550025, Guizhou, Peoples R China 2.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai 519082, Peoples R China 3.Sun Yat sen Univ, Sch Earth Sci & Engn, Guangdong Prov Key Lab Geodynam & Geohazards, Zhuhai 519082, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Xiaoqiang,Su, Zhihua,Wei, Gangjian,et al. Geomagnetic paleointensity variations in the northern South China Sea since the Late Pleistocene[J]. QUATERNARY SCIENCE REVIEWS,2024,324:15. |
| APA | Yang, Xiaoqiang,Su, Zhihua,Wei, Gangjian,Zhang, Tingwei,Chen, Qiong,&Ye, Yulan.(2024).Geomagnetic paleointensity variations in the northern South China Sea since the Late Pleistocene.QUATERNARY SCIENCE REVIEWS,324,15. |
| MLA | Yang, Xiaoqiang,et al."Geomagnetic paleointensity variations in the northern South China Sea since the Late Pleistocene".QUATERNARY SCIENCE REVIEWS 324(2024):15. |
入库方式： OAI收割
来源：广州地球化学研究所
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