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首页> 外文期刊>Geochemistry: Exploration, Environment, Analysis >Multi-metal contaminated stream sediment in the Mansfeld mining district: metal provenance and source detection
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Multi-metal contaminated stream sediment in the Mansfeld mining district: metal provenance and source detection

机译：曼斯费尔德矿区受多金属污染的河流沉积物：金属出处和来源检测

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摘要

In metal mining districts, element and radionuclide patterns in contaminated stream sediment can be used as tracers to detect and track the sources of pollution, and to distinguish geogenic from anthropogenic input, a prerequisite for rehabilitation planning. An example is given from the Mansfeld mining district in central Germany, where mining of ‘Kupferschiefer’ was conducted for over 800 years and led to extensive environmental pollution, considered to be mainly of geogenic origin. In consequence, only emergency measures have been implemented. The aim of the present study was to identify the metal sources in the mining district and to assess the range of pollutant migration. In combining conventional geochemistry, mineralogy and radiometry, it was shown that most of the multi-metal pollution in the Mansfeld mining district is of anthropogenic origin. The major sources of metals are low-grade ore, metalliferous flue dust and slag. Conventional geochemistry provided information on the spread of contamination in the rivers of the mining district. Mineralogy and microchemistry added data on the composition of the source material and pointed to the potential sources of contamination. Finally, the fraction of these sources in environmental pollution was estimated by gamma-spectroscopy.
机译：在金属矿区，被污染的河流沉积物中的元素和放射性核素图案 可以用作示踪剂，以检测 并跟踪污染源，并区分成因 来自人为输入，这是康复 规划的先决条件。从德国中部的曼斯费尔德矿区 举了一个例子，在那里进行了'Kupferschiefer' 的开采，开采了800多年，导致了广泛的环境 污染，被认为主要是地质成因。因此，仅实施了 紧急措施。 本研究的目的是确定采矿区的金属来源，并评估污染物迁移的范围。在 结合常规地球化学，矿物学和放射线学方法，发现 在曼斯费尔德 矿区中大多数多金属污染是人为起源。金属的主要来源是低品位矿石，金属烟气粉尘和矿渣。 常规地球化学提供了有关河流中污染物扩散 的信息。采矿区。矿物学 和微化学添加了有关源 材料组成的数据，并指出了潜在的污染源。 最后，这些源中的一部分通过伽马光谱法估算了环境污染 。

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