Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.jappgeo.2012.11.005 |
Electromagnetic induction for mapping textural contrasts of mine tailing deposits | |
Nearing, Grey S.1; Tuller, Markus2; Jones, Scott B.3; Heinse, Robert4; Meding, Mercer S.2 | |
通讯作者 | Tuller, Markus |
来源期刊 | JOURNAL OF APPLIED GEOPHYSICS
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ISSN | 0926-9851 |
EISSN | 1879-1859 |
出版年 | 2013 |
卷号 | 89页码:11-20 |
英文摘要 | Mine tailings present an important legacy of past and present ore-extraction activities in the Desert Southwest. Inactive mine tailings have no immediate economic role in current mining operations, yet from an environmental point of view it is important that such deposits are stabilized to prevent mass movement, wind or water erosion, leaching of chemicals such as acid mine drainage, and to reduce visual blight. In the presented study, we assess the potential for inferring textural properties of mine tailing deposits with electromagnetic induction (EMI) mapping as a means of informing efforts to establish vegetation at mine waste sites. EMI measurements of apparent electrical conductivity (ECa) and tailing samples were collected at a mine waste site in Southern Arizona, USA and used to test empirical and theoretical relationships between ECa and physical and mineralogical properties using linear and Gaussian process regression. Sensitivity analyses of a semi-theoretical and a regression model of ECa as a function of tailing properties indicated that volumetric clay fraction in the top 60 cm was a primary influence on bulk electrical conductivity along with water content, conductivity of the soil water and the presence of conductive minerals hematite and pyrite. At this site, latitude and longitude were better predictors of clay content than ECa, and while it was possible to obtain information about the spatial distribution of tailing texture using EMI, simple Kriging of texture data was a more powerful textural mapping technique. We conclude that EMI is a useful tool for mapping tailing texture at waste deposit sites, but due to physical and chemical heterogeneity of tailing deposits, it is necessary to collect more in situ samples than are needed for agricultural applications. (c) 2012 Elsevier B.V. All rights reserved. |
英文关键词 | Mine tailings Electromagnetic induction Apparent electrical conductivity Geostatistics Nonlinear regression |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000315541100002 |
WOS关键词 | SOIL ELECTRICAL-CONDUCTIVITY ; MULTIPLE LINEAR-REGRESSION ; SPATIAL PREDICTION ; SALINITY |
WOS类目 | Geosciences, Multidisciplinary ; Mining & Mineral Processing |
WOS研究方向 | Geology ; Mining & Mineral Processing |
来源机构 | University of Arizona |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/177946 |
作者单位 | 1.Univ Arizona, Dept Hydrol & Water Resources, Tucson, AZ 85721 USA; 2.Univ Arizona, Dept Soil Water & Environm Sci, Tucson, AZ 85721 USA; 3.Utah State Univ, Dept Plants Soils & Climate, Logan, UT 84322 USA; 4.Univ Idaho, Dept Plant Soil & Entomol Sci, Moscow, ID 83844 USA |
推荐引用方式 GB/T 7714 | Nearing, Grey S.,Tuller, Markus,Jones, Scott B.,et al. Electromagnetic induction for mapping textural contrasts of mine tailing deposits[J]. University of Arizona,2013,89:11-20. |
APA | Nearing, Grey S.,Tuller, Markus,Jones, Scott B.,Heinse, Robert,&Meding, Mercer S..(2013).Electromagnetic induction for mapping textural contrasts of mine tailing deposits.JOURNAL OF APPLIED GEOPHYSICS,89,11-20. |
MLA | Nearing, Grey S.,et al."Electromagnetic induction for mapping textural contrasts of mine tailing deposits".JOURNAL OF APPLIED GEOPHYSICS 89(2013):11-20. |
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