ISOTOPIC CHARACTERIZATION OF ARSENOPYRITE SULFUR FROM THE CENTRAL PART OF THE CHERTOVO KORYTO DEPOSIT (PATOM UPLAND)
Relevance. The Chertovo Koryto is located within the Lena gold-bearing province, in which large reserves of gold deposits are concentrated (Sukhy Log, Verninskoe, Vysochayshee, Ozherele and other). A lot of time was devoted to the study of this province, which was reflected in a huge number of publi...
| Main Authors: | , |
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| Format: | Article |
| Language: | Russian |
| Published: |
Tomsk Polytechnic University
2022-01-01
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| Series: | Известия Томского политехнического университета: Инжиниринг георесурсов |
| Subjects: | |
| Online Access: | http://izvestiya.tpu.ru/archive/article/view/3418/2633 |
| Summary: | Relevance. The Chertovo Koryto is located within the Lena gold-bearing province, in which large reserves of gold deposits are concentrated (Sukhy Log, Verninskoe, Vysochayshee, Ozherele and other). A lot of time was devoted to the study of this province, which was reflected in a huge number of publications. Despite this, there is no single idea about the origin of the gold deposits formed in the black shale deposits of the Bodayba trough. The question of the source of the useful component and the determination of the mechanism of its transportation, redistribution and concentration remains debatable. In this regard, it becomes relevant to study the isotopic ratios of sulfur sulfides to determine a possible source of the noble metal. In the Chertovo Koryto deposit, the sulfur isotope ratios of sulfides have been studied in limited quantities. They do not reflect changes in δ34S at depth and along the strike of the ore deposit. Therefore, this object is interesting for research in the field of isotope geology. The aim of the work is to identify possible sources of ore matter based on the results of isotopic studies of sulfur of the main mineral of ores – arsenopyrite. The object of the study is arsenopyrite from the central part of the ore deposit. Methods: mass spectrometric measurements using a gas mass spectrometer. Results. Studies have shown the constancy of the isotopic composition of arsenopyrite sulfur (–3,8...+4,3 %) in depth, which indicates a homogeneous source of sulfur during ore formation. Values close to the meteorite standard indicate an endogenous source of ore-forming fluids. The data obtained are consistent with the isotopic composition of sulfur of sulfides of different origin gold deposits formed in shale and other substrates. |
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| ISSN: | 2500-1019 2413-1830 |