Abstract

The paper presents data on noble-metal mineralization in carbon-bearing rocks of the Sarma Group in the southern flank of the Baikal inlier of the Siberian craton basement. The phase composition of the accessory ore minerals (pyrite, arsenopyrite, microinclusions of native Ni, Sn, Zn, Cu, Fe–Ni and Ni–Fe–Ti composite compounds, Cu and Pb sulfides, rutile, monazite, zircon, and barite) were determined by X-ray microanalysis. Gold, silver, and all elements of the platinum group were determined by scintillation arc atomic emission spectrometry in rock samples from the Ilikta and Hulurtui formations. These elements occur as particles of native noble metals, their intermetallic compounds, sulfides, arsenides, selenides, and sulfosalts. Noble-metal mineralization in the Hulurtui and Ilikta formations of the Sarma Group is proved to be genetically related to tectono-metasomatic processes that affected the primary metasedimentary rocks.

中文翻译：

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萨尔马集团岩石中的贵金属：相组成和元素缔合

摘要

本文介绍了西伯利亚克拉通基底贝加尔湖南部南部侧面的Sarma群含碳岩石中的贵金属矿化数据。辅助矿石矿物的相组成（黄铁矿，毒砂，天然Ni，Sn，Zn，Cu，Fe-Ni和Ni-Fe-Ti复合化合物的微夹杂物，Cu和Pb硫化物，金红石，独居石，锆石和重晶石）通过X射线显微分析确定。金，银和铂族的所有元素均通过闪烁弧原子发射光谱法测定了Ilikta和Hulurtui地层的岩石样品中的金。这些元素以天然贵金属，其金属间化合物，硫化物，砷化物，硒化物和亚硫酸盐的颗粒形式存在。