Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s12665-010-0555-x |
Geochemical reconnaissance survey and environmental assessment for stream sediments of Wadi Um Gier, Southeastern Desert, Egypt | |
Darwish, Mohamed Abdallah Gad | |
通讯作者 | Darwish, Mohamed Abdallah Gad |
来源期刊 | ENVIRONMENTAL EARTH SCIENCES
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ISSN | 1866-6280 |
出版年 | 2011 |
卷号 | 62期号:3页码:657-672 |
英文摘要 | The purposes of this study were to assess the influence of old mining activities on the geochemistry and quality of sediments and to identify the sites of economic elements. Thirty sites of stream sediment were sampled in the study area covered by granitic, metarhyodacitic and meta-andesitic rocks and related tuffs-hosted abandoned Au mine. The suite of chemical elements, Ag, Bi, Cd, Cu, Fe, Ga, Hg, Mn, Nb, Pb, Rb, Sb, Se, Sn, Te, Th, U, Y, Zn and Zr, pH value and total organic carbon were determined, and univariate, bivariate and multivariate statistical methods were applied. The results show that the enrichment factor (EF) is very high in the case of Te and significant also with respect to Ag, Bi, Cu, Sb, Se, Sn and Zn. Likewise, geoaccumulation indices (Igeos) varied from very highly polluted with Sn and Te, strongly to very strongly polluted with Bi and Se, and moderately polluted with Sb. The polluted sites of Ag, Bi, Sb, Se, Sn and Te were outlined using Igeos maps, and economic sites of Ag and Sn were identified by geochemical maps leading to their sources, which are likely to be mining activities and lithogenic processes. The pollutant elements may cause toxicity in stream sediments, or surface or underground water, as well as plants and animals in the area. This investigation provides an environmental baseline for future monitoring of possible human/anthropogenic, industrial and agricultural impacts on the study area and considers an attempt at re-mining Ag and Sn. |
英文关键词 | Stream sediments Geochemical survey Environmental assessment Um Gier Egypt |
类型 | Article |
语种 | 英语 |
国家 | Egypt |
收录类别 | SCI-E |
WOS记录号 | WOS:000286193200017 |
WOS关键词 | HEAVY-METAL CONTAMINATION ; EXPLORATION GEOCHEMISTRY ; MARINE ENVIRONMENTS ; PROBABILITY PLOTS ; TRACE-METALS ; LANDSAT TM ; ELEMENTS ; SOILS ; CHINA ; JAPAN |
WOS类目 | Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Water Resources |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/167922 |
作者单位 | (1)S Valley Univ, Dept Geol, Aswan Fac Sci, Aswan 81528, Egypt |
推荐引用方式 GB/T 7714 | Darwish, Mohamed Abdallah Gad. Geochemical reconnaissance survey and environmental assessment for stream sediments of Wadi Um Gier, Southeastern Desert, Egypt[J],2011,62(3):657-672. |
APA | Darwish, Mohamed Abdallah Gad.(2011).Geochemical reconnaissance survey and environmental assessment for stream sediments of Wadi Um Gier, Southeastern Desert, Egypt.ENVIRONMENTAL EARTH SCIENCES,62(3),657-672. |
MLA | Darwish, Mohamed Abdallah Gad."Geochemical reconnaissance survey and environmental assessment for stream sediments of Wadi Um Gier, Southeastern Desert, Egypt".ENVIRONMENTAL EARTH SCIENCES 62.3(2011):657-672. |
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