Pub Date : 2024-07-08DOI: 10.47765/0869-5997-2024-10010
Galina Khachatryan, Natalia Anashkina
Based on the study of rutile and cassiterite grains, using Fourier transform infrared microscopy, a new method for their determination in heavy mineral concentrate samples has been developed. The natural vibrations of the crystal lattice of these minerals are predominantly inactive in the infrared spectrum, which complicates their identification. Rutile is proposed to be determined by the absorption band ~ 1062 cm-1; and cassiterite, by the lines 1059–1065, ~ 1130, 1217–1220, and 1366–1373 cm-1. The characteristic absorption bands in the region of 3200–3400 cm-1, associated with vibrations of OH defects in the crystal lattice of these minerals, have been shown to be of particular importance for the diagnosis of rutile and cassiterite. Structural hydroxyl groups in the spectra are manifested in rutile by a line at about 3279–3283 cm-1; and in cassiterite, by lines at about 3254–3259 cm-1, ~ 3343 and ~ 3377 cm-1.
{"title":"Diagnostic features of rutile and cassiterite from heavy mineral concentrate samples, according to the IR microscopy data","authors":"Galina Khachatryan, Natalia Anashkina","doi":"10.47765/0869-5997-2024-10010","DOIUrl":"https://doi.org/10.47765/0869-5997-2024-10010","url":null,"abstract":"Based on the study of rutile and cassiterite grains, using Fourier transform infrared microscopy, a new method for their determination in heavy mineral concentrate samples has been developed. The natural vibrations of the crystal lattice of these minerals are predominantly inactive in the infrared spectrum, which complicates their identification. Rutile is proposed to be determined by the absorption band ~ 1062 cm-1; and cassiterite, by the lines 1059–1065, ~ 1130, 1217–1220, and 1366–1373 cm-1. The characteristic absorption bands in the region of 3200–3400 cm-1, associated with vibrations of OH defects in the crystal lattice of these minerals, have been shown to be of particular importance for the diagnosis of rutile and cassiterite. Structural hydroxyl groups in the spectra are manifested in rutile by a line at about 3279–3283 cm-1; and in cassiterite, by lines at about 3254–3259 cm-1, ~ 3343 and ~ 3377 cm-1.","PeriodicalId":19636,"journal":{"name":"Ores and metals","volume":" September","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141669666","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 : 2024-07-08DOI: 10.47765/0869-5997-2024-10009
Aleksandra Izvekova, Bulat Damdinov, M. Rampilov
The Gurvunur apatite-magnetite deposit is located within the Ozerny ore cluster in Wes-tern Transbaikalia. A peculiarity of this object is the presence of rare-earth mineralization in the ores. The main REE concentrator minerals include monazite, allanite, apatite, and epidote. One of the main concentrators of REE is apatite, where the content of REE sum reaches 2.6 wt. %. The REE are mainly represented by light lanthanides, with La up to 1.8 wt. % and Ce up to 2.08 wt. % predominating. Monazite- (Ce) is formed in the process of apatite refining, leading to the monazite fine-grained dissemination and veinlets occurring. Epidote is found in nests and vein-like formations of skarn aggregates. The mineral mainly contains light lanthanides (La up to 5.11 wt. %, Ce up to 2.47 wt. %) and forms gradual transitions to allanite that, in its turn, is also found in the form of isolated segregations or as a part of aggregates of epidote-allanite composition. Light lanthanides with Ce up to 14.35 wt. % and La up to 9.16 wt. % pre-dominate in the allanite composition. The study of the mineral composition and distribution of REE in ores and minerals allows us to conclude that rare-earth mineralization in the ores of the Gurvunur apatite-magnetite deposit was formed as a result of skarning of the carbonate-bearing volcanogenic-sedimentary rocks, and the source of rare-earth mineralization was granodiorites of the Vitimkan intrusive suite.
{"title":"Rare earth mineralization in ores of the Gurvunur apatite-magnetite deposit (Ozerny ore cluster, Western Transbaikalia)","authors":"Aleksandra Izvekova, Bulat Damdinov, M. Rampilov","doi":"10.47765/0869-5997-2024-10009","DOIUrl":"https://doi.org/10.47765/0869-5997-2024-10009","url":null,"abstract":"The Gurvunur apatite-magnetite deposit is located within the Ozerny ore cluster in Wes-tern Transbaikalia. A peculiarity of this object is the presence of rare-earth mineralization in the ores. The main REE concentrator minerals include monazite, allanite, apatite, and epidote. One of the main concentrators of REE is apatite, where the content of REE sum reaches 2.6 wt. %. The REE are mainly represented by light lanthanides, with La up to 1.8 wt. % and Ce up to 2.08 wt. % predominating. Monazite- (Ce) is formed in the process of apatite refining, leading to the monazite fine-grained dissemination and veinlets occurring. Epidote is found in nests and vein-like formations of skarn aggregates. The mineral mainly contains light lanthanides (La up to 5.11 wt. %, Ce up to 2.47 wt. %) and forms gradual transitions to allanite that, in its turn, is also found in the form of isolated segregations or as a part of aggregates of epidote-allanite composition. Light lanthanides with Ce up to 14.35 wt. % and La up to 9.16 wt. % pre-dominate in the allanite composition. The study of the mineral composition and distribution of REE in ores and minerals allows us to conclude that rare-earth mineralization in the ores of the Gurvunur apatite-magnetite deposit was formed as a result of skarning of the carbonate-bearing volcanogenic-sedimentary rocks, and the source of rare-earth mineralization was granodiorites of the Vitimkan intrusive suite.","PeriodicalId":19636,"journal":{"name":"Ores and metals","volume":"124 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141667694","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 : 2024-07-08DOI: 10.47765/0869-5997-2024-10007
L.I. Efanova, N.S. Kovalchuk, Tatyana Mayorova
The microelement composition was studied of pyrite, the main concentrator of gold in sulfidization zones in ore occurrences of the Manitanyrd Ridge. The ore mineralization is assigned to the gold-sulfide-quartz vein and gold-sulfide types. We determined a wide range of ore-forming elements, associated with gold in pyrite. These elements correspond to geochemical features of the late galena-chalcopyrite-sphalerite mineral assemblage of the ore process, as well as to its final stage expressed in the appearance of elements reflecting the mineralogy of gray ores and bismuth sulfosalts. Pyrites from the vein and mineralized zones, from the ores of the deposit and from the secondary lithochemical anomalies, were found to contain the same set of the gold satellite elements: Ag, Cu, Zn, Pb, As. In pyrite of the gold-sulfide-quartz veins, Au has close correlations with the main elements of the ore association. In pyrite of the mineralized zones, all the correlations between Au and the ore-forming elements are absent. The pair-wise correlation between the ore-forming elements in these zones also changes completely. It is demonstrated that the identified differences in correlations between Au and the ore-forming elements in pyrite are a criterion for assessment of the lithochemical anomalies and allow one to propose a strategy of prospecting for new ore objects in the Manitanyrd region.
{"title":"Microimpurities in pyrite of gold ore occurrences of the Manitanyrd ridge (the Polar Urals)","authors":"L.I. Efanova, N.S. Kovalchuk, Tatyana Mayorova","doi":"10.47765/0869-5997-2024-10007","DOIUrl":"https://doi.org/10.47765/0869-5997-2024-10007","url":null,"abstract":"The microelement composition was studied of pyrite, the main concentrator of gold in sulfidization zones in ore occurrences of the Manitanyrd Ridge. The ore mineralization is assigned to the gold-sulfide-quartz vein and gold-sulfide types. We determined a wide range of ore-forming elements, associated with gold in pyrite. These elements correspond to geochemical features of the late galena-chalcopyrite-sphalerite mineral assemblage of the ore process, as well as to its final stage expressed in the appearance of elements reflecting the mineralogy of gray ores and bismuth sulfosalts. Pyrites from the vein and mineralized zones, from the ores of the deposit and from the secondary lithochemical anomalies, were found to contain the same set of the gold satellite elements: Ag, Cu, Zn, Pb, As. In pyrite of the gold-sulfide-quartz veins, Au has close correlations with the main elements of the ore association. In pyrite of the mineralized zones, all the correlations between Au and the ore-forming elements are absent. The pair-wise correlation between the ore-forming elements in these zones also changes completely. It is demonstrated that the identified differences in correlations between Au and the ore-forming elements in pyrite are a criterion for assessment of the lithochemical anomalies and allow one to propose a strategy of prospecting for new ore objects in the Manitanyrd region.","PeriodicalId":19636,"journal":{"name":"Ores and metals","volume":" 833","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141669223","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}
The Motykleisky, Chistoozerny, and Pavlovichsky new ore clusters promising for porphyry molybdenum-copper mineralization have been identified in the Magadan region due to results of creation of the State Geological Map 1000/3, sheets O-55, O-56. The porphyry-type mineralization is associated with the Priokhotsky plutonic belt of Albian-Cenomanian granitoids of the Magadan suite of the calcareous-alkaline series (K/Na <1). The granitoids are dominated by porphyritic tonalites and quartz diorites of type I magnetite series, often adakitic in composition. The mineralization is accommodated by the Jurassic-Lower Cretaceous island-arc sedimentary-volcanic formations. Relationship between the mineralization and granitoids is substantiated by the U-Pb SIMS SHRIMP and Re-Os TIMS dating. In potential ore clusters, the mineralization is manifested by extensive fi lds of hydrothermal-metasomatic alterations (propylites and quartz-sericite-pyrite metasomatites). Recommendations are given for follow-up large-scale geological survey and prospecting in the area of the potential ore clusters.
{"title":"Identification of new objects promising for porphyry molybdenum-copper mineralization when creating the State geological map 1000/3: Sheets O-55, O-56 (Northern Priokhotye, Magadan region) as an example","authors":"Antonina Alenicheva, Nikita Kasatkin, Yuri Yurchenko, Tatyana Zubova, Vitali Shatov, Sergei Sergeev","doi":"10.47765/0869-5997-2024-10006","DOIUrl":"https://doi.org/10.47765/0869-5997-2024-10006","url":null,"abstract":"The Motykleisky, Chistoozerny, and Pavlovichsky new ore clusters promising for porphyry molybdenum-copper mineralization have been identified in the Magadan region due to results of creation of the State Geological Map 1000/3, sheets O-55, O-56. The porphyry-type mineralization is associated with the Priokhotsky plutonic belt of Albian-Cenomanian granitoids of the Magadan suite of the calcareous-alkaline series (K/Na <1). The granitoids are dominated by porphyritic tonalites and quartz diorites of type I magnetite series, often adakitic in composition. The mineralization is accommodated by the Jurassic-Lower Cretaceous island-arc sedimentary-volcanic formations. Relationship between the mineralization and granitoids is substantiated by the U-Pb SIMS SHRIMP and Re-Os TIMS dating. In potential ore clusters, the mineralization is manifested by extensive fi lds of hydrothermal-metasomatic alterations (propylites and quartz-sericite-pyrite metasomatites). Recommendations are given for follow-up large-scale geological survey and prospecting in the area of the potential ore clusters.","PeriodicalId":19636,"journal":{"name":"Ores and metals","volume":" 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141668410","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 : 2024-07-08DOI: 10.47765/0869-5997-2024-10008
M. Milaushkin, Vladimir Mal’kovets, Anastasia Gibsher, Igor Yakovlev, Nikolai Tychkov
The article presents results of a study of the chemical composition of garnet xenocry-stals from a concentrate of the heavy fraction of kimberlites from the Yubileinaya pipe and Ottorzhenets kimberlite body. Samples from porphyry kimberlites and autolithic kimberlite breccias were taken for analysis from the Yubileinaya pipe. Significant differences are noted in the studied samples of peridotite garnets from the Yubileinaya kimberlite pipe and the Ottorzhenets body. Compared to the Yubileinaya pipe, the Ottorzhenets body exhibits a decreased amount of garnets of the harzburgite-dunite paragenesis in the composition range of Cr2O3 > 8.5 wt. % and CaO < 3 wt. %. On this basis, we assume that the Ottorzhenets body is not a displaced fragment of the Yubileinaya pipe, but belongs to a new unknown kimberlite body. We also assume that the diamond-bearing potential of the primary Ottorzhenets body is reduced compared to the Yubileinaya pipe, which is consistent with the information on the diamond con-tent, according to the data of AK ALROSA (PJSC)
文章介绍了对来自尤比利纳亚管道和奥托热内茨金伯利岩体的金伯利岩重组分浓缩物中的石榴石异晶的化学成分进行研究的结果。对来自 Yubileinaya 管的斑岩金伯利岩和自生金伯利岩碎屑岩样本进行了分析。所研究的尤比利纳亚金伯利岩管和奥托热内茨岩体橄榄岩石榴石样本存在显著差异。与 Yubileinaya 管道相比，Ottorzhenets 岩体在 Cr2O3 > 8.5 wt. % 和 CaO < 3 wt. % 的成分范围内，显示出哈兹堡岩-云英岩成因的石榴石数量减少。在此基础上，我们认为奥托热涅茨岩体不是尤比利纳亚岩管的移位碎片，而是属于一个新的未知金伯利岩体。根据 AK ALROSA（PJSC）公司的数据，我们还假设原生奥托热内茨岩体的含钻潜力比尤比利纳亚岩管要低，这与有关钻石含量的信息是一致的
{"title":"Mineralogy of garnets from the Jubileinaya kimberlite pipe and Ottorzhenets kimberlite body","authors":"M. Milaushkin, Vladimir Mal’kovets, Anastasia Gibsher, Igor Yakovlev, Nikolai Tychkov","doi":"10.47765/0869-5997-2024-10008","DOIUrl":"https://doi.org/10.47765/0869-5997-2024-10008","url":null,"abstract":"The article presents results of a study of the chemical composition of garnet xenocry-stals from a concentrate of the heavy fraction of kimberlites from the Yubileinaya pipe and Ottorzhenets kimberlite body. Samples from porphyry kimberlites and autolithic kimberlite breccias were taken for analysis from the Yubileinaya pipe. Significant differences are noted in the studied samples of peridotite garnets from the Yubileinaya kimberlite pipe and the Ottorzhenets body. Compared to the Yubileinaya pipe, the Ottorzhenets body exhibits a decreased amount of garnets of the harzburgite-dunite paragenesis in the composition range of Cr2O3 > 8.5 wt. % and CaO < 3 wt. %. On this basis, we assume that the Ottorzhenets body is not a displaced fragment of the Yubileinaya pipe, but belongs to a new unknown kimberlite body. We also assume that the diamond-bearing potential of the primary Ottorzhenets body is reduced compared to the Yubileinaya pipe, which is consistent with the information on the diamond con-tent, according to the data of AK ALROSA (PJSC)","PeriodicalId":19636,"journal":{"name":"Ores and metals","volume":"121 46","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141667489","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 : 2024-04-09DOI: 10.47765/0869-5997-2024-10005
I. Starostin
A comprehensive study of the Kyzyk-Chadr porphyry copper deposit included determination of the composition and spatial distribution of trace elements in ore-forming sulfide minerals over the ore- hosting rock volume. The study was carried out using the mass spectrometric analysis with laser ablation of the analyzed material. Steady qualitative and quantitative elements of a “hidden” mineralogical and geochemical zonality have been identified, that are expressed in variations in the concentration of trace elements and their ratios in pyrites and chalcopyrites over the volume of the ore-bearing porphyry copper stockwork. The identified regularities correlate with the established centrifugal vector and concentric pattern of the mineralogical ore-metasomatic zonality of the ore deposit.
{"title":"“Hidden” mineralogical-geochemical zonality revealed by the laser microanalysis of sulfides at the Kyzyk-Chadr deposit, Republic of Tyva","authors":"I. Starostin","doi":"10.47765/0869-5997-2024-10005","DOIUrl":"https://doi.org/10.47765/0869-5997-2024-10005","url":null,"abstract":"A comprehensive study of the Kyzyk-Chadr porphyry copper deposit included determination of the composition and spatial distribution of trace elements in ore-forming sulfide minerals over the ore- hosting rock volume. The study was carried out using the mass spectrometric analysis with laser ablation of the analyzed material. Steady qualitative and quantitative elements of a “hidden” mineralogical and geochemical zonality have been identified, that are expressed in variations in the concentration of trace elements and their ratios in pyrites and chalcopyrites over the volume of the ore-bearing porphyry copper stockwork. The identified regularities correlate with the established centrifugal vector and concentric pattern of the mineralogical ore-metasomatic zonality of the ore deposit.","PeriodicalId":19636,"journal":{"name":"Ores and metals","volume":"62 13","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140726348","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 : 2024-04-08DOI: 10.47765/0869-5997-2024-10004
Vitali Stepanov, Anton Melnikov
The data are presented on the geological and isotopic age of gold deposits of the Solovyovsky gold ore center in the Amur province, assigned to the gold-polymetallic, gold-sulfide-quartz, and goldquartz formation types. It is demonstrated that the geological and isotopic age of the most productive ore deposits of the gold-polymetallic (Berezitovoe) and gold-sulfide-quartz (Kirovskoe) types is Early Cretaceous according to geological data and Barremian (in the range of 131–125 million years) according to isotopic determinations. The geological age of poorly productive ore deposits of the gold-quartz type is difficult to determine due to the fact that the host rocks are most often represented by gneisses and crystal shales of Precambrian age. The isotopic age of formation of the Snezhninka and Zolotaya gora gold-quartz deposits is, respectively, Late Triassic (212 million years) and Late Jurassic (155 million years).
报告提供了阿穆尔州索洛维约夫斯基金矿中心金矿床的地质和同位素年龄数据，这些矿床被归类为金多金属、金硫化物石英和金石英形成类型。研究表明，根据地质数据，金多金属（Berezitovoe）和金硫化物石英（Kirovskoe）类型的高产矿床的地质和同位素年龄为早白垩世，而根据同位素测定，其地质和同位素年龄为巴雷姆世（1.31-1.25 亿年）。由于母岩多为前寒武纪的片麻岩和水晶页岩，因此很难确定金-石英型贫矿床的地质年代。Snezhninka 和 Zolotaya gora 金石英矿床的同位素形成年龄分别为晚三叠世（2.12 亿年）和晚侏罗世（1.55 亿年）。
{"title":"Geological and isotopic reference points of the age of gold deposits of the Solovyovsky gold ore center in the Amur province","authors":"Vitali Stepanov, Anton Melnikov","doi":"10.47765/0869-5997-2024-10004","DOIUrl":"https://doi.org/10.47765/0869-5997-2024-10004","url":null,"abstract":"The data are presented on the geological and isotopic age of gold deposits of the Solovyovsky gold ore center in the Amur province, assigned to the gold-polymetallic, gold-sulfide-quartz, and goldquartz formation types. It is demonstrated that the geological and isotopic age of the most productive ore deposits of the gold-polymetallic (Berezitovoe) and gold-sulfide-quartz (Kirovskoe) types is Early Cretaceous according to geological data and Barremian (in the range of 131–125 million years) according to isotopic determinations. The geological age of poorly productive ore deposits of the gold-quartz type is difficult to determine due to the fact that the host rocks are most often represented by gneisses and crystal shales of Precambrian age. The isotopic age of formation of the Snezhninka and Zolotaya gora gold-quartz deposits is, respectively, Late Triassic (212 million years) and Late Jurassic (155 million years).","PeriodicalId":19636,"journal":{"name":"Ores and metals","volume":"33 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140730211","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}
The article provides an overview of published and deposited data on the geological structure, mineral and chemical composition of ores, and the ore processing technologies for the Barun-Naryn and other technogenic deposits formed during long-term exploitation of natural molybdenum and tungsten deposits of the Dzhida ore field. Based on statistical analysis of these data and on author’s laboratory analytical studies, the mineral potential of the natural and technogenic deposits of the region was appro- ximately quantitatively assessed for a wide complex of by-product components of the ores. Modern possibilities of multi-element processing of the technogenic raw materials accumulated in this area and outlook for solving the actual problems in the future are demonstrated
{"title":"Potential mineral resources and multi-component use of natural and technogenic tungsten deposits of the Dzhida ore field \u0000(city of Zakamensk, Republic of Buryatia)","authors":"Alexei Samsonov, Alexei Burmistrov, Afanasiy Tel’nov","doi":"10.47765/0869-5997-2024-10002","DOIUrl":"https://doi.org/10.47765/0869-5997-2024-10002","url":null,"abstract":"The article provides an overview of published and deposited data on the geological structure, mineral and chemical composition of ores, and the ore processing technologies for the Barun-Naryn and other technogenic deposits formed during long-term exploitation of natural molybdenum and tungsten deposits of the Dzhida ore field. Based on statistical analysis of these data and on author’s laboratory analytical studies, the mineral potential of the natural and technogenic deposits of the region was appro- ximately quantitatively assessed for a wide complex of by-product components of the ores. Modern possibilities of multi-element processing of the technogenic raw materials accumulated in this area and outlook for solving the actual problems in the future are demonstrated","PeriodicalId":19636,"journal":{"name":"Ores and metals","volume":"283 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140730644","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 : 2024-04-08DOI: 10.47765/0869-5997-2024-10001
Vladimir Makarov, Nikita Babintsev, Vladimir Losev, Vladimir Mezhubovsky, Sergei Serdyuk, Maria Samorodskaya
The article provides conclusions on the history of development of the topography within the Kurtushibinsky metallogenic zone, based on compilation of maps of the vertex and base surfaces of different levels. The areas of erosion and accumulation of loose material, took place at different phases, have been distinguished. The outlines of the potentially gold-bearing Gagul River paleovalley were drawn, that was not previously identified. The prospect for gold of this paleostructure and its associated recent alluvial systems has been concluded. The sites most promising for placer gold exploration have been outlined.
{"title":"Forecasting for new lode-placer gold objects in the southwestern ending of the Kurtushibinsky metallogenic zone, based on the digital relief analysis","authors":"Vladimir Makarov, Nikita Babintsev, Vladimir Losev, Vladimir Mezhubovsky, Sergei Serdyuk, Maria Samorodskaya","doi":"10.47765/0869-5997-2024-10001","DOIUrl":"https://doi.org/10.47765/0869-5997-2024-10001","url":null,"abstract":"The article provides conclusions on the history of development of the topography within the Kurtushibinsky metallogenic zone, based on compilation of maps of the vertex and base surfaces of different levels. The areas of erosion and accumulation of loose material, took place at different phases, have been distinguished. The outlines of the potentially gold-bearing Gagul River paleovalley were drawn, that was not previously identified. The prospect for gold of this paleostructure and its associated recent alluvial systems has been concluded. The sites most promising for placer gold exploration have been outlined.","PeriodicalId":19636,"journal":{"name":"Ores and metals","volume":"217 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140730974","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 : 2024-01-17DOI: 10.47765/0869-5997-2023-10018
S. Kryazhev, S. Dvurechenskaya, Aleksey Okulov, Stepan Fedak
Gold-arsenic sulfide type mineralization has first been revealed for the Gorny Altai region. The mineralized zones associate with lamprophyre dikes and are controlled by steeply dipping faults transecting the Vendian-Cambrian terrigenous-carbonate-volcanogenic sequence. The ore bodies are localized in horizons of basic metavolcanic rocks, enclosed between limestone layers. The near-ore metasomatites are composed of the paragenesis of albite, magnesiosiderite, and sericite. The gold content is related to fine dissemination of arsenic pyrite and arsenopyrite. Gold in the primary and oxidized ores is submicroscopic and finely dispersed. The sulfur isotopic composition of the sulfides (δ34SCDT = 0 ‰) indicates an association of the mineralization with a deep-seated magmatic source. The Kokpatas gold deposit in western Uzbekistan is considered as an analogue.
{"title":"Gold-arsenic sulfide mineralization of the Kayancha area, Gorny Altai","authors":"S. Kryazhev, S. Dvurechenskaya, Aleksey Okulov, Stepan Fedak","doi":"10.47765/0869-5997-2023-10018","DOIUrl":"https://doi.org/10.47765/0869-5997-2023-10018","url":null,"abstract":"Gold-arsenic sulfide type mineralization has first been revealed for the Gorny Altai region. The mineralized zones associate with lamprophyre dikes and are controlled by steeply dipping faults transecting the Vendian-Cambrian terrigenous-carbonate-volcanogenic sequence. The ore bodies are localized in horizons of basic metavolcanic rocks, enclosed between limestone layers. The near-ore metasomatites are composed of the paragenesis of albite, magnesiosiderite, and sericite. The gold content is related to fine dissemination of arsenic pyrite and arsenopyrite. Gold in the primary and oxidized ores is \u0000submicroscopic and finely dispersed. The sulfur isotopic composition of the sulfides (δ34SCDT = 0 ‰) indicates an association of the mineralization with a deep-seated magmatic source. The Kokpatas gold deposit in western Uzbekistan is considered as an analogue.","PeriodicalId":19636,"journal":{"name":"Ores and metals","volume":" 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139617283","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：