Pub Date : 2023-07-11DOI: 10.47765/0869-5997-2023-10009
A. Motov, A. Sobolev
The Au concentrational level of the ores of polymetallic volcanogenic-sedimentary massive sulfide deposits is predetermined by the geodynamic setting of their formation. The ores formed in a mid-ocean ridge setting are characterized by low Au grades. The ores formed under the island arc conditions possess higher Au contents. In the course of the further existence of the ore deposit, its ores experience repeated external influences: underwater halmyrolysis, thermal and dynamic metamorphism, hydrothermal-metasomatic transformations, and exogenous oxidation. These processes lead to the transfer of gold from a micro- or nano-sized form in the sulfides to the free form and to redistribution of Au over the ore field of the deposit. The heterogeneity of the ores in terms of the Au content and existence forms must be taken into account when preparing a feasibility study. The work is intended for geologists conducting mining and geological modeling, designing techniques for the ore extraction, and proposing ore processing technologies.
{"title":"Phylogenesis of gold in polymetallic volcanogenic-sedimentary massive sulfide ores","authors":"A. Motov, A. Sobolev","doi":"10.47765/0869-5997-2023-10009","DOIUrl":"https://doi.org/10.47765/0869-5997-2023-10009","url":null,"abstract":"The Au concentrational level of the ores of polymetallic volcanogenic-sedimentary massive sulfide deposits is predetermined by the geodynamic setting of their formation. The ores formed in a mid-ocean ridge setting are characterized by low Au grades. The ores formed under the island arc conditions possess higher Au contents. In the course of the further existence of the ore deposit, its ores experience repeated external influences: underwater halmyrolysis, thermal and dynamic metamorphism, hydrothermal-metasomatic transformations, and exogenous oxidation. These processes lead to the transfer of gold from a micro- or nano-sized form in the sulfides to the free form and to redistribution of Au over the ore field of the deposit. The heterogeneity of the ores in terms of the Au content and existence forms must be taken into account when preparing a feasibility study. The work is intended for geologists conducting mining and geological modeling, designing techniques for the ore extraction, and proposing ore processing technologies.","PeriodicalId":19636,"journal":{"name":"Ores and metals","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84735565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-11DOI: 10.47765//0869-5997-2023-10010
A. Suchkov, Denis Vydrich
Molybdenum mineralization in the Eastern Sayan is represented by the stockwork, vein, and skarn types. The article is devoted to molybdenum ore occurrences of the Dzhetsky ore cluster of the Sisim-Divnogorsk minerogenic zone, that are characterized by the stockwork type mineralization. The Dzhetsky ore cluster is located 160 km northeast of Abakan and 150 km south of Krasnoyarsk. The study included investigations of the host rocks, ores, and ore-accompanying metasomatic alterations; their mineral assemblages; and the morphological types, relationships, and spatial distribution of the ore segregations. It has been demonstrated that the alteration-mineralization zonality of the Teploe 2 and Intrusivnoe molybdenum prospects of the Dzhetsky ore cluster is represented by the propylite type metasomatic alterations that are superimposed in the central segments of the ore occurrences by veinlet silicification bearing copper-molybdenum mineralization.
{"title":"Alteration-mineralization zonality of the Teploe 2 and Intruzivnoe molybdenum prospects in the Djetsky ore cluster, Eastern Sayan","authors":"A. Suchkov, Denis Vydrich","doi":"10.47765//0869-5997-2023-10010","DOIUrl":"https://doi.org/10.47765//0869-5997-2023-10010","url":null,"abstract":"Molybdenum mineralization in the Eastern Sayan is represented by the stockwork, vein, and skarn types. The article is devoted to molybdenum ore occurrences of the Dzhetsky ore cluster of the Sisim-Divnogorsk minerogenic zone, that are characterized by the stockwork type mineralization. The Dzhetsky ore cluster is located 160 km northeast of Abakan and 150 km south of Krasnoyarsk. The study included investigations of the host rocks, ores, and ore-accompanying metasomatic alterations; their mineral assemblages; and the morphological types, relationships, and spatial distribution of the ore segregations. It has been demonstrated that the alteration-mineralization zonality of the Teploe 2 and Intrusivnoe molybdenum prospects of the Dzhetsky ore cluster is represented by the propylite type metasomatic alterations that are superimposed in the central segments of the ore occurrences by veinlet silicification bearing copper-molybdenum mineralization.","PeriodicalId":19636,"journal":{"name":"Ores and metals","volume":"98 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85768016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-11DOI: 10.47765/0869-5997-2023-10007
A.G. Shevkunov, Anton Kornitsky, Anatoliy Bashkirov, Tynchtykbek Idarkulov
The Kumtor deposit is one of the largest gold deposits in the Tien Shan. The ore zones are localized in rocks of the black shale formation, in an amagmatic gently dipping structure. Distinctive features of the ore deposit in a line of gold objects localized in black shales are the predominance of ores of pyrite-(feldspar)-carbonate composition and the almost complete absence of arsenic in the ores. Kumtor is a typical representative of orogenic type deposits.The use of 3D modeling of the geological structure of the ore deposit with the Leapfrog Geo software allows one to quickly correct the model when new drilling and operational exploration data are received, to optimize the exploration work, and to forecast new sites for the exploratory drilling
{"title":"The Kumtor gold deposit in the Middle Tien Shan, Kyrgyzstan, and the application of 3-D modeling in Seequent’s Leapfrog Geo software for the geological exploration","authors":"A.G. Shevkunov, Anton Kornitsky, Anatoliy Bashkirov, Tynchtykbek Idarkulov","doi":"10.47765/0869-5997-2023-10007","DOIUrl":"https://doi.org/10.47765/0869-5997-2023-10007","url":null,"abstract":"The Kumtor deposit is one of the largest gold deposits in the Tien Shan. The ore zones are localized in rocks of the black shale formation, in an amagmatic gently dipping structure. Distinctive features of the ore deposit in a line of gold objects localized in black shales are the predominance of ores of pyrite-(feldspar)-carbonate composition and the almost complete absence of arsenic in the ores. Kumtor is a typical representative of orogenic type deposits.The use of 3D modeling of the geological structure of the ore deposit with the Leapfrog Geo software allows one to quickly correct the model when new drilling and operational exploration data are received, to optimize the exploration work, and to forecast new sites for the exploratory drilling","PeriodicalId":19636,"journal":{"name":"Ores and metals","volume":"364 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73424059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-11DOI: 10.47765/0869-5997-2023-10006
Y. Ezhkov, Anvar Kholiyorov, Rakhman Rakhimov, U.Kh. Toshmetov
Spatial distribution of skarn-magnetite deposits in the Tien Shan region is closely related to gabbroid magmatism that accompanies wide fault zones bordering the South Tien Shan folded system from the north and south and extending as a latitudinal belt towards the Middle and Southwestern Tien Shan.Studies fulfilled during recent decades in the Karzhantau Ridge area have quite clearly demonstrated its gold-copper-bismuth metallogenic specialization with the leading role of gold. The most promising position is characteristic of the Aktash group ore occurrences (Aktam-I, Aktam-II, and Yuzhnoe).Within the studied Mingbulak area of Karzhantau, the most widely distributed are mineral occurrences of iron ore, lead and zinc, gold, and copper, and less developed boron-bearing, tungsten, and fluorite ones. Most of the mineral occurrences in the area formed as a result of magmatic-hydrothermal activity and are confined to fault zones characterized by long duration and complexity of the formation. The mineralization is usually localized in the crush zones and feathering fractures of the faults. The skarn type includes ore occurrences of iron, a metal that is currently strongly deficient for mining enterprises in the Tashkent region.
{"title":"Boron-bearing skarn-magnetite mineralization of the Mingbulak ore field, Eastern Uzbekistan","authors":"Y. Ezhkov, Anvar Kholiyorov, Rakhman Rakhimov, U.Kh. Toshmetov","doi":"10.47765/0869-5997-2023-10006","DOIUrl":"https://doi.org/10.47765/0869-5997-2023-10006","url":null,"abstract":"Spatial distribution of skarn-magnetite deposits in the Tien Shan region is closely related to gabbroid magmatism that accompanies wide fault zones bordering the South Tien Shan folded system from the north and south and extending as a latitudinal belt towards the Middle and Southwestern Tien Shan.Studies fulfilled during recent decades in the Karzhantau Ridge area have quite clearly demonstrated its gold-copper-bismuth metallogenic specialization with the leading role of gold. The most promising position is characteristic of the Aktash group ore occurrences (Aktam-I, Aktam-II, and Yuzhnoe).Within the studied Mingbulak area of Karzhantau, the most widely distributed are mineral occurrences of iron ore, lead and zinc, gold, and copper, and less developed boron-bearing, tungsten, and fluorite ones. Most of the mineral occurrences in the area formed as a result of magmatic-hydrothermal activity and are confined to fault zones characterized by long duration and complexity of the formation. The mineralization is usually localized in the crush zones and feathering fractures of the faults. The skarn type includes ore occurrences of iron, a metal that is currently strongly deficient for mining enterprises in the Tashkent region.","PeriodicalId":19636,"journal":{"name":"Ores and metals","volume":"22 S3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91515436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-07DOI: 10.47765/0869-5997-2023-10004
Vitaliy Stepanov
The data on the geological and structural position, composition of metasomatites, ores, and gold content of antimony and mercury deposits and occurrences of the Priamursky gold-bearing area are presented. It was established that the ores of many of them contain native gold, whose concentration reaches commercial values. Some of the gold-bearing antimony and mercury deposits serve as sources of the formation of gold placers. By the composition of ores, near-ore metasomatites and samples of native gold, the analogues of these deposits and occurrences are the famous gold deposits of Yakutia - Sarylakh of the gold-antimony formation and Kyuchus of the gold-mercury formation. It is recommended to audit a number of mercury and antimony deposits and occurrences in the Priamursky province for gold. As a result, it is expected to identify deposits of gold-antimony and gold-and-mercury formation. In addition, occurrences of antimony and mercury may be indicative of the presence of gold-sulfide formation deposits in the bedrock, similar to a large deposit Mayskoye (Chukotka).
{"title":"On the gold content in the antimony and mercury mineralization in Priamurye","authors":"Vitaliy Stepanov","doi":"10.47765/0869-5997-2023-10004","DOIUrl":"https://doi.org/10.47765/0869-5997-2023-10004","url":null,"abstract":"The data on the geological and structural position, composition of metasomatites, ores, and gold content of antimony and mercury deposits and occurrences of the Priamursky gold-bearing area are presented. It was established that the ores of many of them contain native gold, whose concentration reaches commercial values. Some of the gold-bearing antimony and mercury deposits serve as sources of the formation of gold placers. By the composition of ores, near-ore metasomatites and samples of native gold, the analogues of these deposits and occurrences are the famous gold deposits of Yakutia - Sarylakh of the gold-antimony formation and Kyuchus of the gold-mercury formation. It is recommended to audit a number of mercury and antimony deposits and occurrences in the Priamursky province for gold. As a result, it is expected to identify deposits of gold-antimony and gold-and-mercury formation. In addition, occurrences of antimony and mercury may be indicative of the presence of gold-sulfide formation deposits in the bedrock, similar to a large deposit Mayskoye (Chukotka).","PeriodicalId":19636,"journal":{"name":"Ores and metals","volume":"33 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72992281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-07DOI: 10.47765/0869-5997-2023-10001
Various scenarios for development of the world uranium industry are considered, and an assumption is made of a high probability of the rapid growth scenario, according to the IAEA, which assumes an annual growth rate of the total nuclear power plants (NPPs) capacity of 2-2.5%. Based on this forecast, an assessment is made of capabilities of the uranium world mineral base to meet the NPPs needs in the nuclear fuel. It is demonstrated that only the restoration of production at temporary closed down mining enterprises, the growth of output at existing mines, and using secondary sources of uranium guarantee a sufficient amount of the raw materials to meet the demand for uranium in the next decade. Moreover, the shortage of raw materials for nuclear fuel in the near future may again be replaced by its excess. However, by the end of the current or early next decade, due to the depletion of the resource base of some operating mines, including Four Mile and Cigar Lake in Canada, the capacities of mining enterprises will be insufficient to meet the fuel needs of NPPs. A shortage of uranium may appear again, that will grow rapidly in the future. This will mean a new round of growth in prices for natural uranium, which, in turn, will stimulate an increase in uranium production throughout the world and will expand the prospects for the implementation of projects for the development of new uranium deposits in Russia, primarily Argunskoe and Zherlovoe in the Streltsovskoe uranium ore region
{"title":"Prospects for the natural uranium world market","authors":"","doi":"10.47765/0869-5997-2023-10001","DOIUrl":"https://doi.org/10.47765/0869-5997-2023-10001","url":null,"abstract":"Various scenarios for development of the world uranium industry are considered, and an assumption is made of a high probability of the rapid growth scenario, according to the IAEA, which assumes an annual growth rate of the total nuclear power plants (NPPs) capacity of 2-2.5%. Based on this forecast, an assessment is made of capabilities of the uranium world mineral base to meet the NPPs needs in the nuclear fuel. It is demonstrated that only the restoration of production at temporary closed down mining enterprises, the growth of output at existing mines, and using secondary sources of uranium guarantee a sufficient amount of the raw materials to meet the demand for uranium in the next decade. Moreover, the shortage of raw materials for nuclear fuel in the near future may again be replaced by its excess. However, by the end of the current or early next decade, due to the depletion of the resource base of some operating mines, including Four Mile and Cigar Lake in Canada, the capacities of mining enterprises will be insufficient to meet the fuel needs of NPPs. A shortage of uranium may appear again, that will grow rapidly in the future. This will mean a new round of growth in prices for natural uranium, which, in turn, will stimulate an increase in uranium production throughout the world and will expand the prospects for the implementation of projects for the development of new uranium deposits in Russia, primarily Argunskoe and Zherlovoe in the Streltsovskoe uranium ore region","PeriodicalId":19636,"journal":{"name":"Ores and metals","volume":"7 4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88254896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-07DOI: 10.47765/0869-5997-2023-10002
O. Vladimirtseva, Victor Konoplev, M.B. Bereznev
Because of significant exhaustion of known easily accessible gold placers, revealing new such objects is becoming increasingly important. Several gold placer clusters are situated in the region of the Selennyakh River in the middle course of the Indigirka River. They are mainly located along the left bank of the Selennyakh River, in its upper reaches. The right banks of the Selennyakh River, especially in its middle course, remain poorly studied. However, the presence of halos of panned gold concentrates with no obvious relation to probable primary sources of gold, revealed in the 1970s-80s, is a reason for this area to be studied as a gold-bearing one. The article presents results of the 2020-2021 panned heavy mineral concentrate sampling within the Vetvistyi site in the middle reaches of the Selennyakh River, provides a characteristic of the alluvial gold typomorphism, and gives a description of the Neogene deposits drained by the Vetvistyi Stream. The belonging of the Neogene deposits to the Uyandina Formation that fills the Momo-Selennyakh depression has been confirmed. Potentially commercial gold-bearing potential of the Vetvistyi Stream and its tributaries has been substantiated, and gold particles (signs) have been revealed in the Neogene deposits of the Uyandina Formation
{"title":"Composition and gold-bearing potential of Neogene deposits \u0000in the middle reaches of the Selennyakh river, \u0000Republic of Sakha (Yakutia)","authors":"O. Vladimirtseva, Victor Konoplev, M.B. Bereznev","doi":"10.47765/0869-5997-2023-10002","DOIUrl":"https://doi.org/10.47765/0869-5997-2023-10002","url":null,"abstract":"Because of significant exhaustion of known easily accessible gold placers, revealing new such objects is becoming increasingly important. Several gold placer clusters are situated in the region of the Selennyakh River in the middle course of the Indigirka River. They are mainly located along the left bank of the Selennyakh River, in its upper reaches. The right banks of the Selennyakh River, especially in its middle course, remain poorly studied. However, the presence of halos of panned gold concentrates with no obvious relation to probable primary sources of gold, revealed in the 1970s-80s, is a reason for this area to be studied as a gold-bearing one. The article presents results of the 2020-2021 panned heavy mineral concentrate sampling within the Vetvistyi site in the middle reaches of the Selennyakh River, provides a characteristic of the alluvial gold typomorphism, and gives a description of the Neogene deposits drained by the Vetvistyi Stream. The belonging of the Neogene deposits to the Uyandina Formation that fills the Momo-Selennyakh depression has been confirmed. Potentially commercial gold-bearing potential of the Vetvistyi Stream and its tributaries has been substantiated, and gold particles (signs) have been revealed in the Neogene deposits of the Uyandina Formation","PeriodicalId":19636,"journal":{"name":"Ores and metals","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75004089","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-07DOI: 10.47765/0869-5997-2023-10005
The paper considers one of possible options for the waste-free processing of dumped masses of nickel slags, accumulated over the years of operation of some enterprises. This process includes the use of hydroand pyrometallurgical processing, which results in three products: iron sulfate, ferrosilicon with a small admixture of aluminum, and slag from the ferrosilicon smelting. The slag has a hardness of 7-7.5 Mohs and can be used as an abrasive powder for sandblasting, or as a raw material for production of high alumina cement. The resulting iron sulfate can subsequently be purified from the copper, nickel, magnesium, and aluminum impurities and brought to the existing GOST compositional requirements. The resulting ferrosilicon, whose silicon content is similar to that of the marked ferrosilicon FS 75 with an aluminum admixture, can be used for deoxidation and silicon alloying of all existing grades of steels and cast irons. In this case, specifications drawn up with participation of a consumer enterprise can be a regulatory document for such ferrosilicon. The slag obtained during the ferrosilicon smelting can also be defined within the framework of these specifications for the abrasive powder producing enterprises.
{"title":"Waste-free processing of waste nickel slags","authors":"","doi":"10.47765/0869-5997-2023-10005","DOIUrl":"https://doi.org/10.47765/0869-5997-2023-10005","url":null,"abstract":"The paper considers one of possible options for the waste-free processing of dumped masses of nickel slags, accumulated over the years of operation of some enterprises. This process includes the use of hydroand pyrometallurgical processing, which results in three products: iron sulfate, ferrosilicon with a small admixture of aluminum, and slag from the ferrosilicon smelting. The slag has a hardness of 7-7.5 Mohs and can be used as an abrasive powder for sandblasting, or as a raw material for production of high alumina cement. The resulting iron sulfate can subsequently be purified from the copper, nickel, magnesium, and aluminum impurities and brought to the existing GOST compositional requirements. The resulting ferrosilicon, whose silicon content is similar to that of the marked ferrosilicon FS 75 with an aluminum admixture, can be used for deoxidation and silicon alloying of all existing grades of steels and cast irons. In this case, specifications drawn up with participation of a consumer enterprise can be a regulatory document for such ferrosilicon. The slag obtained during the ferrosilicon smelting can also be defined within the framework of these specifications for the abrasive powder producing enterprises.","PeriodicalId":19636,"journal":{"name":"Ores and metals","volume":"28 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91084360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-07DOI: 10.47765/0869-5997-2023-10003
The article is devoted to determination of the mineral composition, physicochemical parameters, and sources of the substance of quartz-beryl mineralization of the Pervomaiskoe ore deposit, that is distinguished as an independent stage of the mineral formation. The main minerals are quartz and beryl; phenakite has first been identified for the Pervomaiskoe deposit. Ore minerals are represented by molybdenite, pyrite, and rare grains of cassiterite, chalcopyrite, rutile, aikinite, wulfenite, columbite, monazite, and xenotime. Results of studying the fluid inclusions have showed that homogenization temperatures of the fluid inclusions in the beryl vary in the range from 265 to 191°C. The ore-forming solutions are characterized by a low salinity of 5.9-8.6 NaCl equiv. Homogenization temperatures of fluid inclusions in the quartz correspond to 281-250°C. Data on the isotopic composition show the participation of meteoric waters in the ore-forming process.
{"title":"The mineral composition and formation conditions of quartz-beryl mineralization of the Pervomaiskoe molybdenum deposit, Dzhida ore field, Southwestern Transbaikalian region","authors":"","doi":"10.47765/0869-5997-2023-10003","DOIUrl":"https://doi.org/10.47765/0869-5997-2023-10003","url":null,"abstract":"The article is devoted to determination of the mineral composition, physicochemical parameters, and sources of the substance of quartz-beryl mineralization of the Pervomaiskoe ore deposit, that is distinguished as an independent stage of the mineral formation. The main minerals are quartz and beryl; phenakite has first been identified for the Pervomaiskoe deposit. Ore minerals are represented by molybdenite, pyrite, and rare grains of cassiterite, chalcopyrite, rutile, aikinite, wulfenite, columbite, monazite, and xenotime. Results of studying the fluid inclusions have showed that homogenization temperatures of the fluid inclusions in the beryl vary in the range from 265 to 191°C. The ore-forming solutions are characterized by a low salinity of 5.9-8.6 NaCl equiv. Homogenization temperatures of fluid inclusions in the quartz correspond to 281-250°C. Data on the isotopic composition show the participation of meteoric waters in the ore-forming process.","PeriodicalId":19636,"journal":{"name":"Ores and metals","volume":"28 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85555450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-11DOI: 10.47765/0869-5997-2022-10025
N. Krivolutskaya
On the occasion of the 120th anniversary of the birth of Mikhail Nikolayevich Godlevsky, an outstanding geologist and researcher of magmatic sulfide deposits, a book about the life of this remarkable man “From the depths of the Norilsk ores. Mikhail Godlevsky” is being prepared at the Central Research Geological Prospecting Institute for Base and Precious Metals, where he worked in 1961-1984. The material published below is based on the article “The theory of magmatic ore formation in works by M. N. Godlevsky and its modern aspects” from the anniversary edition and contains minor editorial changes. The article considers the principal theoretical provisions of the magmatic genesis of the Norilsk platinum-copper-nickel deposits, that were developed by M. N. Godlevsky in his works. Particular attention is paid to his still unpublished doctoral dissertation that covers all aspects of the genesis of the unique Norilsk ores: from the formation conditions of the ore-bearing magmas in the northwest Siberian Platform and their crystallization in the upper zones of the earth's crust, to the formation of disseminated and veined ores of the Norilsk 1 and Zub-Marksheiderskoe deposits. Modern views are presented on the origin of ore deposits of the Norilsk region, which were characterized in the works by M. N. Godlevsky.
在米哈伊尔·尼古拉耶维奇·戈德列夫斯基诞辰120周年之际，一位杰出的地质学家和岩浆硫化物矿床的研究人员，一本关于这位杰出人物生活的书“来自诺里尔斯克矿石的深处。米哈伊尔·戈德列夫斯基(Mikhail Godlevsky)在1961年至1984年期间曾在中央基础和贵金属地质勘探研究所(Central Research Geological Prospecting Institute for Base and Precious Metals)工作。下面发表的材料是基于《M. N. Godlevsky著作中的岩浆成矿理论及其现代方面》这篇文章，来自周年纪念版，并包含轻微的编辑修改。本文论述了戈德列夫斯基在其著作中提出的诺里尔斯克铂铜镍矿床岩浆成因的主要理论规定。特别值得注意的是，他尚未发表的博士论文涵盖了诺里尔斯克独特矿石成因的各个方面:从西伯利亚西北台地的含矿岩浆的形成条件及其在地壳上部的结晶，到诺里尔斯克1号和祖布-马克谢尔德斯科矿床的浸染和脉状矿石的形成。现代观点提出了诺里尔斯克地区的矿床的起源，这是由M. N. Godlevsky的作品所描述的。
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