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ISOTOPIC COMPOSITION OF LEAD IN COPPER ORES AND A COPPER ARTEFACT FROM THE LA PROFUNDA MINE (LEóN, SPAIN)

机译:LA PROFUNDA矿(西班牙莱昂)的铜矿石中铅的同位素组成和铜制品

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摘要

This paper continues the characterization of the lead isotopic fingerprint of ancient copper mines in the north-west of Spain. In this work, the lead isotopic compositions found in copper ores from the La Profunda mine are presented. Azurites and malachites sampled from this deposit were subjected to lead isotope analysis by multicollector ICP-MS. The results showed a clear radiogenic lead signature compatible with the presence of uranium-rich minerals (such as zeunerite) in the same mining complex. Moreover, a rare copper artefact, found in the galleries of the mine during its modern exploitation, was also analysed and showed that local mineral was used for its manufacturing.
机译:本文继续了西班牙西北部古代铜矿的铅同位素指纹图谱的表征。在这项工作中,介绍了在La Profunda矿山的铜矿石中发现的铅同位素组成。通过多收集器ICP-MS对从该矿床中取样的天青石和孔雀石进行铅同位素分析。结果表明,与同一采矿综合体中富含铀的矿物(如沸石)的存在存在明显的放射性铅特征。此外,还对在现代开采过程中在矿井的画廊中发现的一种稀有铜制品进行了分析,结果表明该矿被用于制造本地矿物质。

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