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Tectonic setting of kimberlites in the Vilyui-Markhinsky fault zone according to modern data 从现代资料看维留-马金斯基断裂带金伯利岩的构造背景
Ores and metals Pub Date : 2021-11-03 DOI: 10.47765/0869-5997-2021-10015
E. Protsenko, N. Shakhurdina
{"title":"Tectonic setting of kimberlites in the Vilyui-Markhinsky fault zone according to modern data","authors":"E. Protsenko, N. Shakhurdina","doi":"10.47765/0869-5997-2021-10015","DOIUrl":"https://doi.org/10.47765/0869-5997-2021-10015","url":null,"abstract":"The lateral heterogeneity of the Vilyui-Markha fault zone was determined, the central and western subzones were identified. The high-grade diamondiferous Mir and Nakyn kimberlite fields are confined to the central subzone. The low-grade diamondiferous Syuldyukar kimberlite field is confined to the western subzone of the VilyuiMarkha zone. The analysis of the fault network density in the research area was carried out. It was found that the fault network density increases within the subzones, which characterizes them as increased permeability areas favorable for kimberlite melts uprising. This fact can be another tectonic criterion for setting up diamond prospecting operations.","PeriodicalId":19636,"journal":{"name":"Ores and metals","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87483389","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}
引用次数: 0
Geological and geophysical criteria as indicators of promising areas for diamond prospecting 作为金刚石找矿远景区的地质和地球物理指标
Ores and metals Pub Date : 2021-11-03 DOI: 10.47765/0869-5997-2021-10016
Natalya Prusakova, K. Gromtsev, M. Laptev
{"title":"Geological and geophysical criteria as indicators of promising areas for diamond prospecting","authors":"Natalya Prusakova, K. Gromtsev, M. Laptev","doi":"10.47765/0869-5997-2021-10016","DOIUrl":"https://doi.org/10.47765/0869-5997-2021-10016","url":null,"abstract":"The developed complex of geological and geophysical criteria is shown, which is recommended for use in localizing areas for setting up prospecting works on primary diamond deposits.","PeriodicalId":19636,"journal":{"name":"Ores and metals","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83425495","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}
引用次数: 0
Gold metallogeny of the East Tannu-Ola ore region, Tyva Republic 特瓦共和国东坦努—奥拉矿区金矿成矿作用
Ores and metals Pub Date : 2021-08-16 DOI: 10.47765/0869-5997-2021-10010
A. Chernykh, A. Shirobokov, I. Arsentieva
{"title":"Gold metallogeny of the East Tannu-Ola ore region, Tyva Republic","authors":"A. Chernykh, A. Shirobokov, I. Arsentieva","doi":"10.47765/0869-5997-2021-10010","DOIUrl":"https://doi.org/10.47765/0869-5997-2021-10010","url":null,"abstract":"The Elegest-Mezhegei, Aptara, and Shivilig forecasted gold ore clusters and the Kharalyg and Irbitei forecasted gold-silver-polymetallic ore clusters were distinguished within the East Tannu-Ola iron-copper-polymetallic-gold ore region, based on examination of historical and new geological, geochemical, and metallogenical data. Subsequently, the Urgailyg, Proezdnoe, and Chumurtuk forecasted gold ore fields were delineated within the Elegest-Mezhegei cluster; the Despen ore field was delineated within the Aptara ore cluster; and the Ovur-Ongesh ore field was outlined within the Shivilig cluster. In addition, the Ulug-Sailyg and Ak-Charinsk gold-molybdenum-copper ore fields were distinguished outside the ore clusters. The article summarizes the investigation history, geological-structural position, geological features, and geochemical specialization of the rocks of the East Tannu-Ola region. Descriptions of the ore clusters embrace peculiarities of their geological structure, ore mineralogy, and native gold, as well as parameters of the gold-sulfide-quartz, goldskarn, gold-containing polymetallic VMS, and porphyry molybdenum-copper mineralized zones. The conclusions highlight the metallogenic epochs and distribution regularities of the gold and gold-containing mineralization within the region studied.","PeriodicalId":19636,"journal":{"name":"Ores and metals","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79997530","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}
引用次数: 0
New data on the reduced intrusion-related Au mineralization of Central Kolyma gold region: age, formation conditions, composition, orecontrolling factors 中柯立马金矿区侵入体减弱相关金矿化新资料:年龄、形成条件、成分、控矿因素
Ores and metals Pub Date : 2021-08-16 DOI: 10.47765/0869-5997-2021-10011
Nikolay Pachersky, S. Kryazhev, E. Naumov, Darya Desyatova, S. Dvurechenskaya, Maxim Samoilenko
{"title":"New data on the reduced intrusion-related Au mineralization of Central Kolyma gold region: age, formation conditions, composition, orecontrolling factors","authors":"Nikolay Pachersky, S. Kryazhev, E. Naumov, Darya Desyatova, S. Dvurechenskaya, Maxim Samoilenko","doi":"10.47765/0869-5997-2021-10011","DOIUrl":"https://doi.org/10.47765/0869-5997-2021-10011","url":null,"abstract":"New data are presented on the formation conditions and ages of the reduced intrusion-related Au mineralization of the Vetrenskaya area in the Central Kolyma region. The mineralization is predominantly confined to intersections of Late Jurassic minor intrusive bodies and NE-trending fracture systems and is represented by zones of thin quartz veinlets with sericite-quartz halos. The major ore mineral is gold-bearing arsenopyrite (up to 10%), while minor minerals are represented by lellingite, pyrite, chalcopyrite, and pyrrhotite. Microscopic native gold of a low fineness is paragenetically associated with bismuth minerals (bismuthine, native bismuth, andtellurides of Bi and Au), forming microinclusions (1–10 μ) in the arsenopyrite. Isochronous Re-Os age of the goldbearing arsenopyrite is 137–117 Ma, which suggests the mineralization was formed significantly later than the hosting granitoids (147–153 Ma). The reduced intrusionrelated Au ore deposit was formed at shallower depths in comparison with orogenic Au deposits, and at lower temperatures in comparison with rare metal (W, Mo) ore deposits.","PeriodicalId":19636,"journal":{"name":"Ores and metals","volume":"146 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85339152","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}
引用次数: 0
Aldan-Vilyui ore-placer gold-bearing province, Russia 俄罗斯Aldan-Vilyui含金矿矿省
Ores and metals Pub Date : 2021-08-16 DOI: 10.47765/0869-5997-2021-10009
A. Molchanov, A. Terekhov, G. Kozlov, I. Lebedev, Elena Horochorina, V. Gusev
{"title":"Aldan-Vilyui ore-placer gold-bearing province, Russia","authors":"A. Molchanov, A. Terekhov, G. Kozlov, I. Lebedev, Elena Horochorina, V. Gusev","doi":"10.47765/0869-5997-2021-10009","DOIUrl":"https://doi.org/10.47765/0869-5997-2021-10009","url":null,"abstract":"Analysis of materials of the State Geological Map 1 : 1 000 000 (3rd generation) for the southern Sakha–Yakutiya territory in the course of compilation of the Minerogenic forecast map of the Russian Federation and its continental shelf, 1 : 2 500 000, and of the Map of the distribution regularities and forecast for porphyry goldcopper, large-tonnage black-shale gold, and epithermal gold deposits of the Russian Federation, 1 : 2 500 000, has allowed the authors to substantiate distinguishing the new Aldan-Vilyui ore-placer gold-bearing province with a total area of 450 000 km2 in the basins of the Lena, Aldan, and Vilyui rivers. The authors estimate the metallogenic potential of the province at 5000 t of gold. In the near future, this province may become a new extensive resource base of gold and related elements for the Russian Federation.","PeriodicalId":19636,"journal":{"name":"Ores and metals","volume":"71 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79990280","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}
引用次数: 0
Upgrading of a lead-fluorspar ore by flotation: effects of ore characteristics and kinetics of flotation 某铅萤石矿石的浮选改造:矿石特性和浮选动力学的影响
Ores and metals Pub Date : 2021-08-16 DOI: 10.47765/0869-5997-2021-10013
A. Escobar, R. Seltmann, C. Broadbent, P. Robinson
{"title":"Upgrading of a lead-fluorspar ore by flotation: effects of ore characteristics and kinetics of flotation","authors":"A. Escobar, R. Seltmann, C. Broadbent, P. Robinson","doi":"10.47765/0869-5997-2021-10013","DOIUrl":"https://doi.org/10.47765/0869-5997-2021-10013","url":null,"abstract":"British Fluorspar Ltd (BFL) operates a lead-fluorite-barite deposit located in the Peak Lake District (Derbyshire, UK) with fluorspar as the main product and lead and barite as by-products. Recent analysis of the CaF2 concentrate showed high values of deleterious elements such as Pb, P, S and As, which affect the quality of the product. Grindability studies showed an overgrinding of material prior to the flotation stage with high liberation of P2O5 mainly to the fluorspar concentrate. \u0000Data obtained from bath flotation test indicated an improvement of lead recovery from 2.33 % to 15.03 %, decreasing Na2S to 100g/t and pH to 9 in the lead oxide circuit and a depression of P2O5 in the fluorspar flotation stage from 87 % to 91 % recovered in the tailings using 200 g/t of CaCl-CuSO4 as “depressant” of phosphates related minerals","PeriodicalId":19636,"journal":{"name":"Ores and metals","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86896654","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}
引用次数: 0
Nickel anomalies and gold-quartz mineralization in dunite-harzburgite massifs of the Pervomaisko-Verkhoturinskaya area, Central Urals 中乌拉尔Pervomaisko-Verkhoturinskaya地区黑锰矿岩体中镍异常与金-石英成矿作用
Ores and metals Pub Date : 2021-08-16 DOI: 10.47765/0869-5997-2021-10012
A. Motov, Yu. E. Malakh, I. Voropaev
{"title":"Nickel anomalies and gold-quartz mineralization in dunite-harzburgite massifs of the Pervomaisko-Verkhoturinskaya area, Central Urals","authors":"A. Motov, Yu. E. Malakh, I. Voropaev","doi":"10.47765/0869-5997-2021-10012","DOIUrl":"https://doi.org/10.47765/0869-5997-2021-10012","url":null,"abstract":"Along with some gold-quartz deposits hosted by dunite-harzburgite massifs elsewhere in the Urals, elevated Ni concentrations were revealed within the ore field of the Anna gold-(sulfide)-quartz deposit localized in weathered oxidized dunites and harzburgites of the Pervomaisky complex (συO2p) in the Pervomaisko-Verkhoturie district of the Central Urals. The spatial association of Au and Ni concentrations in dunites-harzburgites may be attributed to a partial inheritance of Ni-controlling tectonic dislocations by those hosting gold mineralization. Therefore, the combination of halos of Ni and Au concentrations in dunite-harzburgite massifs is a favorable indicator of areas prospective for discovery of goldquartz mineralization.","PeriodicalId":19636,"journal":{"name":"Ores and metals","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87338124","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}
引用次数: 0
Forecast-exploration model of gold deposits of the Toupugol-Khanmeishor ore cluster as a basis for identification of promising areas for geological exploration within the Malyi Ural volcano-plutonic belt in the Polar Urals 极地乌拉尔玛伊乌拉尔火山-深部构造带图普格尔-汗梅肖尔矿群金矿预测找矿模型及其地质找矿远景区识别依据
Ores and metals Pub Date : 2021-08-16 DOI: 10.47765/0869-5997-2021-10008
A. Andreev
{"title":"Forecast-exploration model of gold deposits of the Toupugol-Khanmeishor ore cluster as a basis for identification of promising areas for geological exploration within the Malyi Ural volcano-plutonic belt in the Polar Urals","authors":"A. Andreev","doi":"10.47765/0869-5997-2021-10008","DOIUrl":"https://doi.org/10.47765/0869-5997-2021-10008","url":null,"abstract":"A forecast-exploration model of gold deposits of the Toupugol-Khanmeishor ore cluster was developed, which made it possible to recommend geological exploration within other promising areas of the Malyi Ural volcano-plutonic belt (VPB) in the Polar Urals. The studies have demonstrated that the Manyukuyu and Kokpela potential ore clusters of the Tan’yu-Lagorta complex ore district in the southern Malyi Ural VPB represent the most promising targets for the further prospecting for lode gold mineralization assigned to various structural-compositional subtypes of the gold-sulfide-quartz mineral type.","PeriodicalId":19636,"journal":{"name":"Ores and metals","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88497550","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}
引用次数: 0
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