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首页> 外文期刊>Geochemistry: exploration, environment, analysis >Geochemical source and dispersion of copper, arsenic, lead, and zinc in the topsoil from the vicinity of Erdenet mining area, Mongolia
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Geochemical source and dispersion of copper, arsenic, lead, and zinc in the topsoil from the vicinity of Erdenet mining area, Mongolia

机译：蒙古埃尔德特矿区附近的铜，砷，铅和锌和锌的地球化学来源和分散体

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摘要

In order to investigate copper, arsenic, lead and zinc contamination in topsoil of the Erdenet copper mining area in Mongolia, soil samples collected from the surrounding area were examined for trace element concentrations, geochemical fractions, and phase distributions. Fifteen locations (residential area; mine industrial area; control area; tailings dam) were sampled during all four seasons. Of the 19 trace elements determined, the highest concentrations of Cu (1443-4866 mg kg(-1)), As (26-52 mg kg(-1)), and Mo (24-49 mg kg(-1)) in soils from the mine industrial area exceeded the corresponding values listed in the National Standard of Mongolia. Soil samples were fractionated into five phases: exchangeable, carbonate bound, Fe/Mn oxide bound, organic matter bound, and residual. Copper was largely associated with the organic/sulphide fraction, and As, Pb and Zn were associated mainly with the residual and Fe/Mn oxide fractions. Significantly high enrichment factor (EF) and geoaccumulation index (I-geo) values confirmed that Cu and As in the soil from the mine industrial area reach serious levels and their sources may be related to anthropogenic activities such as mining.
机译：为了探讨蒙古的Erdenet铜矿地区的表土铜，砷，铅和锌污染，检查从周边地区收集的土壤样品进行痕量元素浓度，地球化学级分和相分布。十五个地点（住宅区;矿山工业区;控制面积;尾矿坝）在所有四季中都被取样。确定的19个痕量元素中，最高浓度的Cu（1443-4866mg kg（-1）），如（26-52mg kg（-1））和mo（24-49 mg kg（-1））在矿井工业区的土壤中超过了蒙古国家标准中列出的相应价值。将土壤样品分为五个阶段：可交换，碳酸盐结合，Fe / Mn氧化物结合，有机物结合和残留物。铜大致与有机/硫化物级分相关，并且如Pb和Zn主要与残留和Fe / Mn氧化物级分相关。显着高的富集因子（EF）和地质累积指数（I-Geo）值证实，Cu和矿井产业面积的土壤达到严重水平，它们的来源可能与开采等人为活动有关。

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