Precious-metal ore mineralizations in central Slovak volcanic field

与火山活动有关的浅成热液矿床拥有一些世界上最壮观和具有历史意义的贵金属(银、金)和贱金属(铅、锌、铜)矿床。在这里，我打算对斯洛伐克中部第三纪火山杂岩中选定的具有代表性的浅成热液银-金矿化地点进行详细研究。从历史上看，这是中世纪欧洲最重要的贵金属供应商之一；目前，开采仅限于最后一座活跃的矿山。尽管有两千年的密集开采，但关于贵金属矿石的矿物学和成矿作用的信息很大程度上是缺失的。这项研究旨在通过矿物学和地球化学方法的适当结合来评价所选矿化的矿物学和地球化学、热液蚀变的地球化学和类型以及成矿流体的物理化学条件。在这项研究中，我们选择了一个“经典”的银-金(Ag：Au 20：1-100：1)产状和一个以前未知的新的(Ag：Au-1：1)矿化。在拟议的工作中，我们将使用从地表收集的样本，但更重要的是，我们的合作者从勘探公司EMED收集的钻芯样本。钻芯样本提供了对研究区域矿化的独特见解；可供我们研究的10多个钻芯提供了评估交错的矿石结构的特殊机会，并有助于我们对这一大型火山构造及其矿化的了解。这项研究的最终目标有两个，一是建立所研究成矿作用的成因模式，并将其纳入整个火山构造的演化方案中；二是根据所研究的成矿作用的经济潜力对其进行分类和区分。

Epithermal hydrothermal deposits, related to volcanic activity, host some of the world's most spectacular and historically significant deposits of precious (Ag, Au) and base (Pb, Zn, Cu) metals. Here I propose to carry out a detailed study of selected representative localities of epithermal Ag- Au mineralization in the Tertiary volcanic complex of central Slovakia. Historically, this was one of the most Important Medieval supplier of precious metals in Europe; currently, the exploitation is limited to one last active mine. Despite two millennia of intensive mining, information about mineralogy and metallogenesis of the precious-metal ores is largely missing. The proposed research seeks to evaluate mineralogy and geochemistry of the selected mineralizations, geochemistry and style of the hydrothermal alteration, and physico-chemical conditions of the ore-forming fluids by an appropriate combination of mineralogical and geochemical methods. For this study, we have chosen a "classical" Ag-Au (Ag:Au 20:1 - 100:1) occurrence and a novel, previously unknown (Ag:Au - 1:1) mineralization. In the proposed work, we will use samples collected from the surface but, more importantly, drill cores samples amassed by our collaborators from an exploration company EMED. The drill core samples offer unique insights in the mineralizations in the studied region; more than 10 drill cores available for our research provide an exceptional opportunity to assess the intersected ore structures and to contribute to our knowledge of this large volcanic structure and its ore mineralization. There are two ultimate goals of this research, that is, i) to formulate a genetic model for the studied mineralization and incorporate the model into the evolution scheme of the entire volcanic structure, and ii) to classify and distinguish the studied mineralizations in terms of their economic potential.