Abstract The aim of this work was to make an estimate of the remaining metal resources of the Haveri tailings (SW Finland) that were deposited for 60 years ago. We used existing databases (Cu, Zn, Ni, Co, As, Pb, Ag, Au, Fe, S) of previous valorization performed in the 1980's with high sample density; a total of 1201 tailings samples from 165 drill cores. Cobalt, Cu, and Au were chosen for further statistical evaluation, 3D block modelling, and feasibility analysis. We performed also a volume estimate of the tailings based on the depth of drill cores, which was used for the calculation of the total resources. The grade and total tonnage of remaining Au resources present economic potential in comparison to current Au production, whereas the remaining resources for Co and Cu are less promising for reprocessing. However, further feasibility studies are required. This work may serve as an example to make use of existing databases by means of geostatistical modelling techniques in combination with more profound understanding of the mineralogical associations of the metals.

中文翻译：

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Haveri Au-Cu 尾矿（芬兰西南）的重新估值以进行潜在的后处理

摘要 这项工作的目的是估计 60 年前沉积的 Haveri 尾矿（芬兰西南）的剩余金属资源。我们使用了现有的数据库（Cu、Zn、Ni、Co、As、Pb、Ag、Au、Fe、S），其中包含 1980 年代在高样本密度下进行的先前估值；来自 165 个钻芯的 1201 个尾矿样品。钴、铜和金被选择用于进一步的统计评估、3D 块建模和可行性分析。我们还根据钻芯深度对尾矿进行了体积估算，用于计算总资源量。与当前的 Au 产量相比，剩余 Au 资源的品位和总吨位具有经济潜力，而 Co 和 Cu 的剩余资源用于后处理的前景较差。然而，需要进一步的可行性研究。这项工作可以作为一个例子，通过地质统计建模技术结合对金属矿物学关联的更深刻理解来利用现有数据库。