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首页> 外文期刊>Geochemistry: exploration, environment, analysis >Response of soil C- and O-horizon and terrestrial moss samples to various lithological units and mineralization in southern Norway
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Response of soil C- and O-horizon and terrestrial moss samples to various lithological units and mineralization in southern Norway

机译：土壤C-和O-Horizo n与陆地苔藓样本对挪威南部各种岩性单位和矿化的响应

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摘要

This study was conducted to determine which sample material provides the most reliable signal for geochemical exploration under Norwegian conditions. A 100-km long transect was placed over two mineral deposits in southern Norway; the Nordli Mo deposit with surfaces exposure of molybdenite (MoS2) and a sandstone-hosted Pb mineralization with surface exposures of sphalerite. At each of 41 sampling sites, soil C- and O-horizon samples and terrestrial moss (Hylocomium splendens) were collected. All samples were analysed for 53 chemical elements following an aqua regia extraction. The Pb deposit is indicated by all three sample materials by anomalous high consentratons of Pb, especially by the C-horizon. The Mo deposit is indicated by more than one anomalous high Mo value in both O- and C-horizon but is not indicated by any clear anomaly in moss. The general mineraliation area of the two deposits is detected on a regional scale using low sample density. However, to exactly localise the mineralization and to define drill targets, a sample density 10 sites/km(2) would be required. Though high Pb concentrations in moss are usually interpreted as being due to anthropogenic activities, results presented here demonstrate that locally moss reacts strongly to the presence of Pb mineralization.
机译：进行该研究以确定哪些样品材料为挪威病症下的地球化学勘探提供最可靠的信号。在挪威南部的两种矿物沉积物上放置100公里的长途横断面; Nordli Mo沉积钼矿（MOS2）和砂岩托管的PB矿化，具有闪锌矿的表面暴露。在41个采样点中的每一个，收集土壤C-和O-Horizo​​ n样品和陆地苔（Hylocomium Splendens）。在Aqua Regia提取后分析所有样品53个化学元素。 PB沉积物由所有三种样品通过PB的异常高等，特别是由C-Horizo​​N表示。 Mo沉积物在O-和C-Horizo​​ n中由一个以上的异常高Mo值表示，但没有由苔藓中的任何透明异常表明。使用低样品密度在区域尺度上检测到两种沉积物的一般矿化面积。然而，为了精确定位矿化并定义钻靶，样品密度＆需要10个位置/ km（2）。虽然苔藓中的高PB浓度通常被解释为由于人为活动，但这里提出的结果表明，局部苔藓对Pb矿化的存在强烈反应。

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