Arid
DOI10.1016/j.gexplo.2012.02.008
Abandoned tailings deposits, acid drainage and alluvial sediments geochemistry, in the arid Elqui River Basin, North-Central Chile
Oyarzun, Jorge1; Castillo, Daniela1; Maturana, Hugo1; Kretschmer, Nicole2; Soto, Guido3; Amezaga, Jaime M.4; Roetting, Tobias S.4; Younger, Paul L.5; Oyarzun, Ricardo1,2
通讯作者Oyarzun, Ricardo
来源期刊JOURNAL OF GEOCHEMICAL EXPLORATION
ISSN0375-6742
EISSN1879-1689
出版年2012
卷号115页码:47-58
英文摘要

Two major pollutant sources related to hydrothermal ore deposits and mining operations exist in the Elqui river basin, Chile: (a) add drainage from Andean epithermal El Indio Au-Ag-Cu-As district and nearby hydrothermal alteration zones, and (b) diffuse sediment dispersion from abandoned tailings deposits in usually dry creeks in the western belt of the basin. This work analyses the contribution of both sources to the current metal contents of the fine grained sediments of the rivers and creeks of the Elqui basin, including a group of chemical elements and data analysis techniques not considered in previous works carried out in the area. Analysis of "active sediments" (i.e., sediments in permanent contact with surface water) in the main channel and tributaries of the Elqui river reveals that both pollutant sources contribute to their exceptionally high Cu contents (between 0.1 and 0.2% in the minus 60 mesh fraction). However, As pollution (0.03%) is mainly derived from the El Indio district. Potentially toxic heavy metals (notably Cd, Pb, Hg and Mo) are present in low concentrations and do not represent major threats to ecology or human health. Nevertheless, ongoing erosion of abandoned tailings deposits may result in soil contamination and thus be detrimental to the export-oriented agriculture of the Elqui basin. Consequently, remediation of that source should be prioritized. (C) 2012 Elsevier B.V. All rights reserved.


英文关键词Acid drainage Active sediments Hydrothermal alteration Tailings CAMINAR
类型Article
语种英语
国家Chile ; England
收录类别SCI-E
WOS记录号WOS:000304026500005
WOS关键词WATER CHEMISTRY DATA ; STREAM SEDIMENTS ; CLASSIFICATION ; SECTOR ; COPPER ; ANDES
WOS类目Geochemistry & Geophysics
WOS研究方向Geochemistry & Geophysics
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/173563
作者单位1.Univ La Serena, Dept Ingn Minas, La Serena, Chile;
2.Univ La Serena, CEAZA, La Serena, Chile;
3.Ctr Agua Zonas Aridas & Semiaridas Amer Latina &, La Serena, Chile;
4.Newcastle Univ, Sch Civil Engn & Geosci, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England;
5.Newcastle Univ, Newcastle Inst Res Sustainabil, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England
推荐引用方式
GB/T 7714
Oyarzun, Jorge,Castillo, Daniela,Maturana, Hugo,et al. Abandoned tailings deposits, acid drainage and alluvial sediments geochemistry, in the arid Elqui River Basin, North-Central Chile[J],2012,115:47-58.
APA Oyarzun, Jorge.,Castillo, Daniela.,Maturana, Hugo.,Kretschmer, Nicole.,Soto, Guido.,...&Oyarzun, Ricardo.(2012).Abandoned tailings deposits, acid drainage and alluvial sediments geochemistry, in the arid Elqui River Basin, North-Central Chile.JOURNAL OF GEOCHEMICAL EXPLORATION,115,47-58.
MLA Oyarzun, Jorge,et al."Abandoned tailings deposits, acid drainage and alluvial sediments geochemistry, in the arid Elqui River Basin, North-Central Chile".JOURNAL OF GEOCHEMICAL EXPLORATION 115(2012):47-58.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Oyarzun, Jorge]的文章
[Castillo, Daniela]的文章
[Maturana, Hugo]的文章
百度学术
百度学术中相似的文章
[Oyarzun, Jorge]的文章
[Castillo, Daniela]的文章
[Maturana, Hugo]的文章
必应学术
必应学术中相似的文章
[Oyarzun, Jorge]的文章
[Castillo, Daniela]的文章
[Maturana, Hugo]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。