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首页> 外文期刊>Geochemistry: Exploration, Environment, Analysis >Regional distribution and sources of Au, Pd and Pt in moss and O-,B- and C-horizon podzol samples in the European Arctic
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Regional distribution and sources of Au, Pd and Pt in moss and O-,B- and C-horizon podzol samples in the European Arctic

机译：欧洲北极地区苔藓以及O-，B-和C-水平podzol样品中Au，Pd和Pt的区域分布和来源

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摘要

A cost-effective analytical method for analysing various terrestrial sample materials for noble metals at detection limits in the sub-ppb range has been developed. The method has been used to analyse c. 600 samples of moss, O-, B- and C-horizon samples collected from a large area (188,000 km2) in the European Arctic at a sample density of 1 site/300 km2. For the first time reliable analytical data for Au, Pd and Pt for a large, statistically representative number of samples from four different sample materials can be reported. The regional distribution of Au, Pd and Pt in moss and O-horizon samples provides clear evidence that the Russian nickel industry on the Kola Peninsula is emitting Au and platinum group elements (PGEs). However, maps and profiles for moss and the O-horizon also demonstrate that the emissions of one of the very few and largest Pd emission sources on earth cannot be traced further than 200 km on the ground before reaching background values. The predominant natural geochemical characteristics of the study area are visible in the maps of the B- and C-horizon samples even when using such low-density sampling. Furthermore, the data allow estimation of realistic ‘background values’ for these three elements in the four sample materials. By collecting four interrelated sample materials from a large area it is possible to detect unusual processes leading to the enrichment of certain elements in specific compartments of the ecosystem. Most dramatic is a greater than four-fold higher Pt concentration in the B-horizon of arctic podzols compared to all other media. Platinum concentrations are also slightly higher in the O-horizon than in the C-horizon. Palladium shows a tendency to organic binding. Moss is actively enriching Pd and shows even higher Pd concentrations than in the O-horizon. The highest Au values can be found in the deepest soil layers (C-horizon). Natural, geogenic sources influence Au concentrations measured in moss and the O-horizon as much as industrial emissions.
机译：开发了一种经济有效的分析方法，用于在 sub-ppb范围内检测极限下的各种陆地金属样品材料。该方法已用于 分析c。从欧洲北极 的大面积（188,000 km 2 ）收集了600个苔藓，O，B和C地平线样品 以1个站点/ 300 km 2 的样本密度进行。首次可以获取来自四种不同样品 材料的大量具有统计意义的代表性样品的Au，Pd和Pt的可靠 分析数据报告。青苔和O型水平样品中Au， Pd和Pt的区域分布提供了明确的证据 ，表明可乐半岛上的俄罗斯镍工业正在排放 金和铂族元素（PGE）。但是，关于苔藓和O-horizo​​n的地图和配置文件 也表明，地球上 。在达到 背景值之前，不能在地面上超过200 km的位置跟踪。即使在使用这种低密度采样的情况下，研究区域的主要自然地球化学特征 在B-和C-horizo​​n 样本的地图中也可见。此外， 数据允许估算这四个样本材料中这三个元素的实际“背景值” 。通过从大面积收集 四个相互关联的样本材料，有可能 检测异常过程，从而导致特定 元素在特定区域的富集。生态系统。与其他所有媒介相比，北极小豆的B地平线中最戏剧性的 高Pt浓度四倍以上。 O地平线中的铂浓度 也略高于C地平线。 钯显示出有机结合的趋势。 Moss积极地 富集Pd，并且其Pd浓度甚至高于 地平线。最高的Au值可以在最深的 土壤层（C地平线）中找到。天然的地缘来源影响 在苔藓和O型地平线中测得的Au浓度与工业排放量一样。

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