Výskyty hydrotermálnej Sb-Au mineralizácie na lokalitách Lomnistá, Husárka a Suchá dolina pri Jasení (Nízke Tatry)

Q3 Earth and Planetary Sciences

Bulletin Mineralogie Petrologie Pub Date : 2020-01-01 DOI:10.46861/bmp.28.210

Štefan Čík, Martin Chovan, Juraj Majzlan

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引用次数: 2

Abstract

Ore mineralization in small Sb-Au occurrences Lomnistá, Husárka and Suchá dolina (Nízke Tatry Mts., Western Carpathians) was investigated by reflected-light microscopy, electron microprobe, fluid inclusion measurements, identification of host rock alteration and secondary minerals. Hydrothermal Sb-Au mineralization was formed during the arsenopyrite-pyrite-gold and stibnite-Pb-Sb-sulfosalts stages. The first stage of mineralization consists of arsenopyrite, pyrite, and quartz, but gold, typical for this stage in the Nízke Tatry Mts. is missing. Stibnite and zinkenite are dominant in the following stage in Lomnistá and Husárka. Berthierite and jamesonite are frequent in Suchá dolina. Other ore minerals identified here are sphalerite, chalcostibite, chalcopyrite, cinnabar, tetrahedrite-(Hg) at Lomnistá and Husárka and pyrrhotite, chalcostibite, tetrahedrite-(Fe), chalcopyrite, antimony, and gold in Suchá dolina. Identified secondary minerals are valentinite and stibiconite. Stibnite, gold, and other ore minerals were found in heavy-mineral fractions from alluvial sediments, pointing at short transport from the primary sources. Two quartz samples, thought to be related to stibnite or berthierite, contained two-phase fluid inclusions with salinity of 10 - 20 wt.% NaCl eq. The total homogenization temperatures are 230 - 330 ºC in Lomnistá and 200 - 260 ºC in Suchá dolina.

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Lomnista、Husarka和Jasenia（Low-Tatra）干燥山谷位置的热液Sb-Au矿化频率

利用反射光显微镜、电子探针、流体包裹体测量、主岩蚀变及次生矿物鉴定等方法，研究了lomnist、Husárka和such dolina (Nízke Tatry Mts，西喀尔巴阡山脉)小型Sb-Au矿床的成矿作用。毒砂—黄铁矿—金和辉锑矿—铅—锑—硫酸盐阶段形成热液成矿。第一阶段的矿化由毒砂、黄铁矿和石英组成，但在Nízke Tatry mts中缺少该阶段典型的金。lomnist和Husárka的下一阶段以辉锑矿和锌锑矿为主。伯提锡石和雅各辉石在这类白云岩中很常见。在这里发现的其他矿石矿物有闪锌矿、辉铜矿、黄铜矿、朱砂、lomnist和Husárka的四面体(汞)和suchaldolina的磁黄铁矿、辉铜矿、四面体(铁)、黄铜矿、锑和金。鉴定出的次生矿物有华伦铅矿和辉锑矿。在冲积沉积物的重矿物组分中发现了辉锑矿、金和其他矿石矿物，这表明它们是从原生源短暂迁移而来的。两个石英样品被认为与辉锑矿或绢黄铁矿有关，含有两相流体包裹体，盐度为10 ~ 20 wt.% NaCl eq。lomnist的总均一温度为230 ~ 330ºC, such dolina的总均一温度为200 ~ 260ºC。

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Bulletin Mineralogie Petrologie Earth and Planetary Sciences-Economic Geology

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期刊介绍： Bulletin Mineralogie Petrologie is a peer-reviewed journal focused especially on: mineralogy, crystal chemistry and study of crystal structures of minerals study of mineral associations and processes of their origin meteoritics, research of tectites economic geology (of ore deposits) and study of history of mining of ore deposits topographic mineralogy petrology of igneous, metamorphic and sedimentary rocks instrumental analytical methods at mineralogy and petrology mineralogy and petrology as tools for archeology and similar disciplines