首页> 外文期刊>International Journal of Soil, Sediment and Water >Mercury and Cyanide Used as Indicators of Sediment Transport in Ephemeral Washes at the Techatticup Mine and Mill Site, Nelson, Nevada (USA)
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Mercury and Cyanide Used as Indicators of Sediment Transport in Ephemeral Washes at the Techatticup Mine and Mill Site, Nelson, Nevada (USA)

机译:在美国内华达州纳尔逊的Techatticup矿山和磨矿场中,汞和氰化物用作临时洗涤物中泥沙输送的指标

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Mercury (Hg) and cyanide (CN-) are used as indicators of aquatic transport down gradient in ephemeral washes. The pattern of transport for Hg and CN- should mimic other metals (As, Cu, Cr, Pb, Ni, Ba) found in the soils. Hg and CN- were chosen to illustrate transport in surface soils because Hg and CN- are utilized in the milling process and Hg is available from the local geology. Stamp mills that utilize Hg and CN- flotation concentrate naturally occurring metals as byproducts. Soil samples collected from a wash system bisecting the mine waste site contained metal concentrations significantly above background levels. Mercury and cyanide concentrations showed dissimilar distribution patterns throughout the wash system with Hg and CN- 30- and 95- times greater than background concentrations. Concentrations of various heavy metals corresponded well with the concentrations of mercury and cyanide throughout the wash system validating the use of specific analytes as tracers of transport of contaminated soils.
机译:汞(Hg)和氰化物(CN-)用作短暂洗净过程中水生生物向下降梯度的指示剂。 Hg和CN-的迁移模式应模仿土壤中发现的其他金属(As,Cu,Cr,Pb,Ni,Ba)。选择Hg和CN-来说明在表层土壤中的迁移,因为在研磨过程中会使用Hg和CN-,并且Hg可从当地地质获取。利用Hg和CN浮选的压印厂将天然存在的金属作为副产品进行浓缩。从将矿井废料场一分为二的冲洗系统收集的土壤样品中的金属浓度明显高于本底水平。汞和氰化物的浓度在整个洗涤系统中显示出不同的分布模式,其中汞和CN的浓度分别比背景浓度高30至95倍。在整个洗涤系统中,各种重金属的浓度与汞和氰化物的浓度非常吻合,这证实了使用特定的分析物作为污染土壤运输的示踪剂。

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