Geomagnetic paleointensity dating of South China Sea sediments for the last 130 kyr
文献类型：期刊论文
| 作者 | Yang Xiaoqiang1; Friedrich Heller2; Wu Nengyou3; Yang Jie1; Su Zhihua1 |
| 刊名 | earth and planetary science letters
 |
| 出版日期 | 2009-06-30 |
| 卷号 | 284期号:1-2页码:258-266 |
| 关键词 | South China Sea relative paleointensity chronology |
| ISSN号 | 0012-821x |
| 通讯作者 | eesyxq@mail.sysu.edu.cn |
| 中文摘要 | relative paleointensity records from the northern south china sea, northwest pacific ocean were studied in two gravity piston cores. continuous mineral magnetic and paleomagnetic measurements were made using discrete sediment samples. detailed rock magnetic parameters, such as thermomagnetic and high-field hysteresis data, indicate that pseudo-single domain magnetite in a narrow range of grain-size and concentration is the main contributor to the remanent magnetization. the uniform magnetic mineralogy meets the commonly accepted criteria for establishing relative paleointensity records. the relative paleointensity (rpi) curves were constructed by normalizing the natural remanent magnetization (nrm) with isothermal remanent magnetization (irm), both in the 20-60 mt demagnetization state. dating constraints have been provided by radiocarbon ages in the upper 400 cm of both cores. furthermore, we have correlated our paleointensity records with napis-75, s.atlantic-1089, sint-200 and nopapis-250 to determine the chronological rpi framework for the south china sea (scs-pis). although some temporal offsets of paleointensity features between the different records have been recognized, their similar shape suggests that relative paleointensity on the 10(3)-10(4) year scale is globally coherent and can provide an age framework for sediments independent of delta o-18 ages. |
| 英文摘要 | relative paleointensity records from the northern south china sea, northwest pacific ocean were studied in two gravity piston cores. continuous mineral magnetic and paleomagnetic measurements were made using discrete sediment samples. detailed rock magnetic parameters, such as thermomagnetic and high-field hysteresis data, indicate that pseudo-single domain magnetite in a narrow range of grain-size and concentration is the main contributor to the remanent magnetization. the uniform magnetic mineralogy meets the commonly accepted criteria for establishing relative paleointensity records. the relative paleointensity (rpi) curves were constructed by normalizing the natural remanent magnetization (nrm) with isothermal remanent magnetization (irm), both in the 20-60 mt demagnetization state. dating constraints have been provided by radiocarbon ages in the upper 400 cm of both cores. furthermore, we have correlated our paleointensity records with napis-75, s.atlantic-1089, sint-200 and nopapis-250 to determine the chronological rpi framework for the south china sea (scs-pis). although some temporal offsets of paleointensity features between the different records have been recognized, their similar shape suggests that relative paleointensity on the 10(3)-10(4) year scale is globally coherent and can provide an age framework for sediments independent of delta(18)o ages. (c) 2009 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | geochemistry & geophysics |
| 研究领域[WOS] | geochemistry & geophysics |
| 关键词[WOS] | inter-hemispheric correlation ; relative paleointensity ; north-atlantic ; late pleistocene ; loess plateau ; labrador-sea ; sulu sea ; 300 ka ; record ; intensity |
| 收录类别 | SCI |
| 资助信息 | national natural science foundation of china [40674034]; natural science foundation of guangdong province, china [06023110] |
| 原文出处 | http://www.sciencedirect.com/science/journal/0012821x |
| 语种 | 英语 |
| WOS记录号 | WOS:000268438900028 |
| 公开日期 | 2010-09-16 |
| 源URL | [http://ir.giec.ac.cn/handle/344007/3310]  |
| 专题 | 中国科学院广州能源研究所 |
| 作者单位 | 1.Sun Yat Sen Univ, Dept Earth Sci, Guangzhou 510275, Guangdong, Peoples R China 2.Swiss Fed Inst Technol, Inst Geophys, CH-8092 Zurich, Switzerland 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang Xiaoqiang,Friedrich Heller,Wu Nengyou,et al. Geomagnetic paleointensity dating of South China Sea sediments for the last 130 kyr[J]. earth and planetary science letters,2009,284(1-2):258-266. |
| APA | Yang Xiaoqiang,Friedrich Heller,Wu Nengyou,Yang Jie,&Su Zhihua.(2009).Geomagnetic paleointensity dating of South China Sea sediments for the last 130 kyr.earth and planetary science letters,284(1-2),258-266. |
| MLA | Yang Xiaoqiang,et al."Geomagnetic paleointensity dating of South China Sea sediments for the last 130 kyr".earth and planetary science letters 284.1-2(2009):258-266. |
入库方式： OAI收割
来源：广州能源研究所
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