| 青藏高原腹地湖泊沉积物磁化率及其环境意义 |
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| 引用本文： | 田庆春,杨太保,张述鑫,石培宏,张俊辉,范喆.青藏高原腹地湖泊沉积物磁化率及其环境意义[J].沉积学报,2011,29(1):143-150. |
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| 作者姓名： | 田庆春 杨太保 张述鑫 石培宏 张俊辉 范喆 |
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| 作者单位： | 兰州大学资源环境学院西部环境教育部重点实验室 兰州 730000 |
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| 基金项目： | 国家自然科学基金项目(批准号:40871057)资助 |
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| 摘 要： | 通过青藏高原腹地可可西里边缘地区BDQ0608 钻孔岩芯分析,表明其岩性主要为浅绿色湖相沉积物,其中夹杂部分较薄的氧化色层段.热退磁表明:BDQ0608钻孔中磁性矿物主要有磁铁矿、磁赤铁矿、针铁矿和胶黄铁矿,赤铁矿表现不太明显,其组分含量直接控制磁化率值的大小;并且对样品进行了磁化率、粒度、总有机碳及色度的测定.磁化率...
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| 关 键 词： | 磁化率 湖泊沉积 可可西里地区 |
| 收稿时间： | 1900-01-01 |
Magnetic Susceptibility and Its Environmental Significance of Lake Sediments in Tibet Plateau |
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| TIAN Qing-chun,YANG Tai-bao,ZHANG Shu-xin,SHI Pei-hong,ZHANG Jun-hui,FAN Zhe.Magnetic Susceptibility and Its Environmental Significance of Lake Sediments in Tibet Plateau[J].Acta Sedimentologica Sinica,2011,29(1):143-150. |
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| Authors: | TIAN Qing-chun YANG Tai-bao ZHANG Shu-xin SHI Pei-hong ZHANG Jun-hui FAN Zhe |
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| Institution: | College of Resources and Environment, Key Laboratory of West China's Environmental Systems, Ministry of Education, Lanzhou University, Lanzhou 730000 |
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| Abstract: | A 106 m long sediment core named BDQ0608 was drilled from the Hohxil area in hinterland of the Tibet Plateau,and the lithology is mostly reseda lake sediments with part of a thin oxide color layer.The thermal demagnetization indicates that magnetic mineral in BDQ0608 core mainly includes magnetite,maghemite,goethite,melnikovite,and trace hematite.Magnetic susceptibility was directly related to the composition of magnetic mineral.Magnetite,which abounds in sandy and argillaceous samples,was considered to der... |
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| Keywords: | magnetic susceptibility lake deposit Hohxil area |
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