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| 新疆表土磁学性质及其环境意义 | |
| 引用本文： | 魏海涛,夏敦胜,陈发虎,金明,王训明,贾佳,刘现彬.新疆表土磁学性质及其环境意义[J].干旱区地理,2009,32(5). |
| 作者姓名： | 魏海涛 夏敦胜 陈发虎 金明 王训明 贾佳 刘现彬 |
| 作者单位： | 1. 兰州大学,西部环境教育部重点实验室,甘肃,兰州,730000 2. 兰州大学,西部环境教育部重点实验室,甘肃,兰州,730000;中国科学院寒区旱区环境与工程研究所,沙漠与沙漠化重点实验室,甘肃,兰州,730000 3. 中国科学院寒区旱区环境与工程研究所,沙漠与沙漠化重点实验室,甘肃,兰州,730000 |
| 基金项目： | 国家自然科学基金项目(40871080,90502008)资助 |
| 摘 要： | 在新疆地区采集了331块表土样品,分析了样品的磁性特征(磁性矿物种类、磁性矿物含量和粒径组成)及其环境意义。结果指示新疆地区表土磁性特征存在较大的区域差异。北疆样品中磁性矿物总体含量较高,以单畴和假单畴颗粒的磁铁矿、磁赤铁矿等软磁性矿物为主,南疆样品中磁性矿物含量较低,硬磁质含量稍高,单畴颗粒矿物所占比重较北疆低;伊犁地区样品的磁性矿物在组成上与南疆样品更为接近,但成壤相对较强,超顺磁颗粒含量高。新疆地区表土磁性特征差异在一定程度上反映了新疆地区环境因子的区域差异,尤其是年均降水的不同。 |
| 关 键 词： | 环境磁学 表土 磁化率 新疆 |
Magnetic characteristics of surface soil and its significance in Xinjiang,China |
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| WEI Hai-tao,XIA Dun-sheng,CHEN Fa-hu,JIN Ming,WANG Xun-ming,JIA Jia,LIU Xian-bin.Magnetic characteristics of surface soil and its significance in Xinjiang,China[J].Arid Land Geography,2009,32(5). | |
| Authors: | WEI Hai-tao XIA Dun-sheng CHEN Fa-hu JIN Ming WANG Xun-ming JIA Jia LIU Xian-bin |
| Institution: | WEI Hai-tao~1,XIA Dun-sheng~(1,2),CEHN Fa-hu~1,JIN Ming~1,WANG Xun-ming~2,JIA Jia~1,LIU Xian-bin~1 (1 Key Laboratory of West China' s Environmental System(Ministry of Education),Lanzhou University,Lanzhou 730000,Gansu,China,2 Key Laboratory of Desert and Desertification,Institute of Cold and Arid Regions Environmental and Engineering,Chinese Academy of Sciences,China) |
| Abstract: | In this study,a set of environmental magnetic parameters(x_(lf),x_(fd)%,x_(ARM),SIRM,HIRM SOFT and SIRM/x_(lf),X_(ARM)/SIRM andx_(ARM)/x_(lf)) of 331 surface soil samples in Xinjiang were systematically measured.The magnetic characteristics(magnetic mineralogy,magnetic grain -size and magnetic property) and its environmental significance were discussed.Results indicate that the main magnetic minerals in these surface soils are single domain magnetite.The content of magnetic minerals in surface soils in nort... |
| Keywords: | environmental magnetism surface soil magnetic susceptibility Xinjiang |
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