Identification of magnetic minerals in surface sediments of Miyun Lake, Beijing
文献类型：期刊论文
| 作者 | Han Fei1,2,3; Wang Fu-Xian1,2,3; Li Jin-Hua1,2,5; Qin Hua-Feng1; Deng Cheng-Long1,3,4; Pan Yong-Xin1,2,3,5 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2016-08-01 |
| 卷号 | 59期号:8页码:2937-2948 |
| 关键词 | Sediment Rock magnetism Transmission Electron Microscopy (TEM) Magnetic extraction Biogenic magnetite |
| DOI | 10.6038/cjg20160818 |
| 文献子类 | Article |
| 英文摘要 | Understanding the magnetic properties of natural sediments, which include magnetic concentration, composition and grain size, is fundamental in paleomagnetic and paleoenvironmental studies. Systematic magnetic measurements and non-magnetic methods (e.g., transmission electron microscopy, TEM) provide detailed information of magnetic minerals. In this paper, we established a high efficient magnetic extraction method to separate magnetic minerals from surface sediments of Miyun lake in Beijing. We analyzed the bulk samples, magnetic extracts and residues. Saturation magnetization (M-s), volume magnetic susceptibility (kappa) and saturation isothermal remanent magnetization (SIRM) of the magnetic extracts is about 85%, 75% and 70% of the bulk samples, respectively. Multiple-parameter rock magnetic measurements indicated that the major magnetic minerals in sediments are multi-domain (MD) and single domain (SD) magnetite. TEM analyses revealed detrital MD titano-magnetite, biogenic SD magnetite (magnetofossils) and authigenic superparamagnetic (SP) magnetite. We propose that the combination of rock magnetism and TEM observations is useful to accurately identify the magnetic minerals in sediments. |
| WOS关键词 | ISOTHERMAL REMANENT MAGNETIZATION ; MAGNETOTACTIC BACTERIA ; ACQUISITION CURVES ; ELECTRON-MICROSCOPY ; CRYSTAL-GROWTH ; SEA SEDIMENTS ; WARM PERIOD ; BIOMINERALIZATION ; HOLOCENE ; SUSCEPTIBILITY |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000381166400018 |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/53376]  |
| 专题 | 地质与地球物理研究所_中国科学院地球与行星物理重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Paleomagnetism & Geochronol Lab, Beijing 100029, Peoples R China 2.Chinese Acad Sci, France China Biomineralizat & Nanostruct Lab, Beijing 100029, Peoples R China 3.Univ Chinese Acad Sci, Sch Earth Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 5.Chinese Acad Sci, Inst Geol & Geophys, CAS Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Han Fei,Wang Fu-Xian,Li Jin-Hua,et al. Identification of magnetic minerals in surface sediments of Miyun Lake, Beijing[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2016,59(8):2937-2948. |
| APA | Han Fei,Wang Fu-Xian,Li Jin-Hua,Qin Hua-Feng,Deng Cheng-Long,&Pan Yong-Xin.(2016).Identification of magnetic minerals in surface sediments of Miyun Lake, Beijing.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,59(8),2937-2948. |
| MLA | Han Fei,et al."Identification of magnetic minerals in surface sediments of Miyun Lake, Beijing".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 59.8(2016):2937-2948. |
入库方式： OAI收割
来源：地质与地球物理研究所
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