Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1080/15320383.2013.768200 |
Sediment Contamination along Desert Wash Systems from Historic Mining Sites in a Hyperarid Region of Southern Nevada, USA | |
Sims, Douglas B.1,2; Hooda, Peter S.2; Gillmore, Gavin K.2 | |
通讯作者 | Sims, Douglas B. |
来源期刊 | SOIL & SEDIMENT CONTAMINATION
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ISSN | 1532-0383 |
出版年 | 2013 |
卷号 | 22期号:7页码:737-752 |
英文摘要 | Abandoned mining sites in hyperarid environments are generally assumed to present an insignificant risk to water availability. This study investigated the impact abandoned mine sites in Southern Nevada can have on the wider environment. Southern Nevada is characterized with little precipitation and prolonged droughts. Precipitation in Southern Nevada is often in the form of short and intense events with the potential to mobilize and transport contaminated sediments down gradient. This work evaluated the movement of trace elements (Ag, As, Ba, Cd, Cr, Hg, Pb, and Se) and cyanide in surface sediments of three desert washes near the historic mining town of Nelson, a hyperarid region of Southern Nevada. Results indicate trace elements have been mobilized and transported down gradient from sources to areas not directly impacted by mining. Contaminants used in mining operations (Hg and CN-) as well as those of geogenic nature migrated as far as 6000m, providing evidence of their transport in hyperarid environments, contrary to the generally held belief. Although contaminants in this study are below levels that are environmentally significant, the findings show that transport is possible. This study demonstrates that large amounts of contaminant-laden sediments might be a significant threat in hyperarid environment and to areas down gradient from source materials. |
英文关键词 | Silver cyanide mercury mining trace metals water dispersion Nevada |
类型 | Article |
语种 | 英语 |
国家 | USA ; England |
收录类别 | SCI-E |
WOS记录号 | WOS:000320183900002 |
WOS关键词 | HEAVY-METAL CONTAMINATION ; STREAM SEDIMENTS ; ABANDONED MINE ; PLANTS ; TRANSPORT ; ELEMENTS ; CADMIUM ; LEAD ; PB ; UK |
WOS类目 | Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/179950 |
作者单位 | 1.Coll Southern Nevada, North Las Vegas, NV 89030 USA; 2.Univ Kingston, Ctr Earth & Environm Sci Res, Kingston Upon Thames KT1 2EE, Surrey, England |
推荐引用方式 GB/T 7714 | Sims, Douglas B.,Hooda, Peter S.,Gillmore, Gavin K.. Sediment Contamination along Desert Wash Systems from Historic Mining Sites in a Hyperarid Region of Southern Nevada, USA[J],2013,22(7):737-752. |
APA | Sims, Douglas B.,Hooda, Peter S.,&Gillmore, Gavin K..(2013).Sediment Contamination along Desert Wash Systems from Historic Mining Sites in a Hyperarid Region of Southern Nevada, USA.SOIL & SEDIMENT CONTAMINATION,22(7),737-752. |
MLA | Sims, Douglas B.,et al."Sediment Contamination along Desert Wash Systems from Historic Mining Sites in a Hyperarid Region of Southern Nevada, USA".SOIL & SEDIMENT CONTAMINATION 22.7(2013):737-752. |
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