Precious-metal ore mineralizations in central Slovak volcanic field

斯洛伐克中部火山田的贵金属矿化

基本信息

批准号：
186273609
负责人：
Professor Dr. Juraj Majzlan, Ph.D.
金额：
--
依托单位：
Lehrstuhl Allgemeine und Angewandte Mineralogie
依托单位国家：
德国
项目类别：
Research Grants
财政年份：
2010
资助国家：
德国
起止时间：
2009-12-31 至 2013-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/186273609?language=en
关键词：
Precious metal ore mineralizations central

项目摘要

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.

与火山活性有关的表现热水沉积物是世界上一些最壮观和历史上最重要的珍贵（Ag，au）和碱（Pb，Zn，Cu）金属的沉积物。在这里，我建议对斯洛伐克中部大三级火山综合体中表现为矿化的某些代表性地区进行详细研究。从历史上看，这是欧洲最重要的中世纪贵金属供应商之一。目前，剥削仅限于最后一个活跃的矿山。尽管有两千年的密集采矿，但关于珍贵金属矿石的矿物学和金属作用的信息在很大程度上仍然缺失。拟议的研究旨在通过适当组合矿物质学和地球化学方法组合来评估选定的矿物质，水热改变的地球化学和样式的矿物学和地球化学。在这项研究中，我们选择了“经典” Ag -au（AG：AU 20：1-100：1）的发生和一个新颖的事件，以前未知（AG：AU -1：1）矿化。在拟议的工作中，我们将使用从表面收集的样品，但更重要的是，我们的合作者在Emed公司的合作者中积累了钻头样本。钻头样品在研究区域的矿化中提供了独特的见解。我们的研究可用的10多个钻芯为评估相交的矿石结构，并为我们对这种大型火山结构及其矿石矿化的了解做出贡献提供了极大的机会。这项研究有两个最终目标，即，i）为所研究的矿化制定遗传模型，并将该模型纳入整个火山结构的进化方案，以及ii）以根据其经济潜力对所研究的矿化进行分类和区分。