Pub Date : 2023-01-01DOI: 10.17072/psu.geol.22.1.1
A. Ya. Gaev, I. V. Kudelina
The complexity of the formation of hydrodynamics and chemical composition of natural waters of the Urals folded mountains and platform Pre-Urals is due to large differences in the geological structure and in the formation of fluids in the mountain-fold, platform, and transition zones. In addition, the properties and amount of waters in the hydrosphere in the supercritical state below the Conrad boundary are practically not investigated. Hydrogeochemical regularities are used in mapping, zoning of the territory, as well as for the interpretation of the actual material, and division of the cross-section in the drainage basins. For this purpose, concepts of hydrodynamic and hydrogeochemical floors, hydrogeochemical zones, hydrogeological and hydrogeochemical aquifer complexes and horizons are used. Each hydrogeological area is distinguished by its vertical hydrogeochemical zonation, which synthesizes the most essential features of the evolution of this structure during a particular period of history. As a result, chemical types of waters with zones of a certain thickness, successively replacing each other within adjacent areas or provinces (belts) are formed. The same type of zonation may also characterize a group of structures.
{"title":"On the Hydrogeological and Hydrogeochemical Features of the Orenburg Region and Adjacent Areas","authors":"A. Ya. Gaev, I. V. Kudelina","doi":"10.17072/psu.geol.22.1.1","DOIUrl":"https://doi.org/10.17072/psu.geol.22.1.1","url":null,"abstract":"The complexity of the formation of hydrodynamics and chemical composition of natural waters of the Urals folded mountains and platform Pre-Urals is due to large differences in the geological structure and in the formation of fluids in the mountain-fold, platform, and transition zones. In addition, the properties and amount of waters in the hydrosphere in the supercritical state below the Conrad boundary are practically not investigated. Hydrogeochemical regularities are used in mapping, zoning of the territory, as well as for the interpretation of the actual material, and division of the cross-section in the drainage basins. For this purpose, concepts of hydrodynamic and hydrogeochemical floors, hydrogeochemical zones, hydrogeological and hydrogeochemical aquifer complexes and horizons are used. Each hydrogeological area is distinguished by its vertical hydrogeochemical zonation, which synthesizes the most essential features of the evolution of this structure during a particular period of history. As a result, chemical types of waters with zones of a certain thickness, successively replacing each other within adjacent areas or provinces (belts) are formed. The same type of zonation may also characterize a group of structures.","PeriodicalId":30663,"journal":{"name":"Vestnik Permskogo Universiteta Seria Geologia","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135710079","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 : 2023-01-01DOI: 10.17072/psu.geol.22.1.51
O. V. Alikin, A. V. Chumakov, V. N. Rudashevsky
The article presents results of petrographic and mineralogical studies of gold-antimony ores of the Udereyskoe deposit and their concentration products. The main mineral associations of ores are characterized, mineral forms of occurrence are revealed, and distribution of Au, Pd, Ag is estimated. The paragenetic scheme of mineral formation sequence was clarified and supplemented. The important mineral forms of gold occurrence are goldbearing arsenopyrite and native gold (Au,Ag), as well as rare aurostibite AuSb2 and intermetallides such as antimony gold (Au,Sb), and palladium gold (Au,Pd). The revealed diversity of forms of noble metals and analysis of their relationships with associating sulfides and nonmetallic minerals indicate at least two contrasting early and late stages of ore genesis. Early quartz-pyrite and late pyrite, which are two stages of mineralization, are determened within the early stage. Three consecutive stages of mineralization are established in the late stage: quartz-stibnite, pyrite-stibnite-quartz, and pyrite-arsenopyrite-stibnite.
{"title":"Mineralogical and Petrographic Features and Mineral Formation Sequence of Gold-Antimony Ores from Udereyskoe Deposit (Krasnoyarsk Region)","authors":"O. V. Alikin, A. V. Chumakov, V. N. Rudashevsky","doi":"10.17072/psu.geol.22.1.51","DOIUrl":"https://doi.org/10.17072/psu.geol.22.1.51","url":null,"abstract":"The article presents results of petrographic and mineralogical studies of gold-antimony ores of the Udereyskoe deposit and their concentration products. The main mineral associations of ores are characterized, mineral forms of occurrence are revealed, and distribution of Au, Pd, Ag is estimated. The paragenetic scheme of mineral formation sequence was clarified and supplemented. The important mineral forms of gold occurrence are goldbearing arsenopyrite and native gold (Au,Ag), as well as rare aurostibite AuSb2 and intermetallides such as antimony gold (Au,Sb), and palladium gold (Au,Pd). The revealed diversity of forms of noble metals and analysis of their relationships with associating sulfides and nonmetallic minerals indicate at least two contrasting early and late stages of ore genesis. Early quartz-pyrite and late pyrite, which are two stages of mineralization, are determened within the early stage. Three consecutive stages of mineralization are established in the late stage: quartz-stibnite, pyrite-stibnite-quartz, and pyrite-arsenopyrite-stibnite.","PeriodicalId":30663,"journal":{"name":"Vestnik Permskogo Universiteta Seria Geologia","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135709567","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 : 2023-01-01DOI: 10.17072/psu.geol.22.1.91
E. E. Kozhevnikova, E. A. Kuznetsovа
The article is devoted to the determination of petroleum systems in deep sediments of the section of the Upper Pechora Basin of the Pre-Ural trough. These strata are still poorly studied, and the prospects for their oil and gas potential have not been clarified. The article discusses the definitions of the term “Petroleum system” (“Oil and gas” or “Hydrocarbon”) adopted in Russia and abroad. Based on the study of the collected data, including geochemical and reservoir properties, and basin modeling, three deep-submerged petroleum systems were identified within the territory under consideration. It is shown that the generation of hydrocarbons occurred at a time favorable for the formation of deposits. In the deep sediments of the sedimentary cover, the most important conditions for the formation of oil and gas fields within the framework of the concept of petroleum systems are fulfilled. The presence of source rocks, reservoirs, seals and traps, the realization of generation, migration and accumulation of hydrocarbons, as well as the optimal ratio of the time of manifestation of these processes, and the area of formation of deposits were analyzed.
{"title":"Petroleum Systems in the Deep Subsoil of the Verkhnepechorskaya Depression","authors":"E. E. Kozhevnikova, E. A. Kuznetsovа","doi":"10.17072/psu.geol.22.1.91","DOIUrl":"https://doi.org/10.17072/psu.geol.22.1.91","url":null,"abstract":"The article is devoted to the determination of petroleum systems in deep sediments of the section of the Upper Pechora Basin of the Pre-Ural trough. These strata are still poorly studied, and the prospects for their oil and gas potential have not been clarified. The article discusses the definitions of the term “Petroleum system” (“Oil and gas” or “Hydrocarbon”) adopted in Russia and abroad. Based on the study of the collected data, including geochemical and reservoir properties, and basin modeling, three deep-submerged petroleum systems were identified within the territory under consideration. It is shown that the generation of hydrocarbons occurred at a time favorable for the formation of deposits. In the deep sediments of the sedimentary cover, the most important conditions for the formation of oil and gas fields within the framework of the concept of petroleum systems are fulfilled. The presence of source rocks, reservoirs, seals and traps, the realization of generation, migration and accumulation of hydrocarbons, as well as the optimal ratio of the time of manifestation of these processes, and the area of formation of deposits were analyzed.","PeriodicalId":30663,"journal":{"name":"Vestnik Permskogo Universiteta Seria Geologia","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135710922","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 : 2023-01-01DOI: 10.17072/psu.geol.22.1.80
G. P. Shcherbinina, G. V. Prostolupov, S. G. Bychkov
The article highlights some issues of geology and genesis of structural forms of the Verkhnekamskoye Salt Deposit (Perm krai). On the example of the Popovskiy salt dome location, the results of detailed studies and analysis of data on the geological structure of sedimentary strata and their morphology are presented. The reconstruction of the evolution of salt structures, the uplifts and depressions was carried out. The main factors and mechanisms, which controlled the development of a modern tectonic structure of this territory, were determined. Significant role in formation of the modern tectonic features of the upper part of the sedimentary cover played the accumulation in the Kungurian age of the Permian the ductile salt rocks, which, at the Late Paleozoic - Early Mesozoic subsequent stages of the territory evolution, determined the increased tectonic mobility of salt and supra-salt deposits, and the formation of high-amplitude uplifts and basins. Differences in tectonogenesis of the upper part of the sedimentary cover, comprising the ductile salt-bearing strata and the underlying rigid rocks, led to the division of the sedimentary cover of the Solikamskaya depression of the Cis-Ural trough into two tectonic stages. The lower level includes uplifts representing the draping structures of the Fransian-Tournaisian reef massifs and brachianticline folds of longitudinal compression, and the upper level comptises the structures formed as a result of the halokinesis of plastic rocks.
{"title":"Reconstruction of the Salt Structures Development on the Verkhnekamskoye Salt Deposit","authors":"G. P. Shcherbinina, G. V. Prostolupov, S. G. Bychkov","doi":"10.17072/psu.geol.22.1.80","DOIUrl":"https://doi.org/10.17072/psu.geol.22.1.80","url":null,"abstract":"The article highlights some issues of geology and genesis of structural forms of the Verkhnekamskoye Salt Deposit (Perm krai). On the example of the Popovskiy salt dome location, the results of detailed studies and analysis of data on the geological structure of sedimentary strata and their morphology are presented. The reconstruction of the evolution of salt structures, the uplifts and depressions was carried out. The main factors and mechanisms, which controlled the development of a modern tectonic structure of this territory, were determined. Significant role in formation of the modern tectonic features of the upper part of the sedimentary cover played the accumulation in the Kungurian age of the Permian the ductile salt rocks, which, at the Late Paleozoic - Early Mesozoic subsequent stages of the territory evolution, determined the increased tectonic mobility of salt and supra-salt deposits, and the formation of high-amplitude uplifts and basins. Differences in tectonogenesis of the upper part of the sedimentary cover, comprising the ductile salt-bearing strata and the underlying rigid rocks, led to the division of the sedimentary cover of the Solikamskaya depression of the Cis-Ural trough into two tectonic stages. The lower level includes uplifts representing the draping structures of the Fransian-Tournaisian reef massifs and brachianticline folds of longitudinal compression, and the upper level comptises the structures formed as a result of the halokinesis of plastic rocks.","PeriodicalId":30663,"journal":{"name":"Vestnik Permskogo Universiteta Seria Geologia","volume":"159 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135709564","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 : 2023-01-01DOI: 10.17072/psu.geol.22.1.12
B. M. Osovetsky
The peculiarities of kimberlite micromineral assemblages are described. The previous investigations results are analyzed and presented in the paper as well. The typical microminerals (main grains less than 5 µm in size) in 7 kimberlite tubes of Yakutiya (Nachalnaya, Novinka-1, 2, 4, Vodorazdelnaya, Obnazhennaya, Sytykanskaya) were studied in details under scanning electron microscope. The objects of investigations are included as the microminerals in large crystals, binding substance, and the kimberlites alteration products. The characteristic differences in chemical composition of indicative components (intermetals, sulfides, silicates, etc.) are revealed that may be used for evaluation of diamondiferousness of kimberlites
{"title":"Microminerals in Kimberlites","authors":"B. M. Osovetsky","doi":"10.17072/psu.geol.22.1.12","DOIUrl":"https://doi.org/10.17072/psu.geol.22.1.12","url":null,"abstract":"The peculiarities of kimberlite micromineral assemblages are described. The previous investigations results are analyzed and presented in the paper as well. The typical microminerals (main grains less than 5 µm in size) in 7 kimberlite tubes of Yakutiya (Nachalnaya, Novinka-1, 2, 4, Vodorazdelnaya, Obnazhennaya, Sytykanskaya) were studied in details under scanning electron microscope. The objects of investigations are included as the microminerals in large crystals, binding substance, and the kimberlites alteration products. The characteristic differences in chemical composition of indicative components (intermetals, sulfides, silicates, etc.) are revealed that may be used for evaluation of diamondiferousness of kimberlites","PeriodicalId":30663,"journal":{"name":"Vestnik Permskogo Universiteta Seria Geologia","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135709570","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 : 2023-01-01DOI: 10.17072/psu.geol.22.1.32
N. N. Zinchuk
Basing on complex research of accessory and rock-forming minerals of kimberlite rocks of pipes Udachnaya, Nyurbinskaya and Botuobinskaya, the processes of secondary mineral formation have been determined in details. The products of kimberlite rocks alteration have been studied, the scheme of initial minerals transformation has been constructed, typomorphic features of final weathering products have been revealed, the profile of kimberlite rocks’ weathering crust of Nakyn field has been established. It was shown that saponite in Yakutian kimberlite pipes has a hydrothermal origin that make it possible to use it during prospecting of kimberlite bodies under certain conditions. Complex comparative investigation of ancient weathering crusts of rocks of various chemical and mineralogical composition allowed tracing specific features of their hypergene alteration and typomorphic indications of eluvial products that is very important for solving a number of applied tasks. It is possible to differentiate at the structural level the same varieties of primary minerals in redeposited weathering products of various rocks, as well as identify secondary stratified silicates, differing in the last case either by character of octahedral positions’ occupation in their structure, either by the way of mutual superposition of individual silicate layers or by their polytypic character. That is why redeposited in ancient sedimentary thick layers products of various types of weathering crusts preserve structural and chrystallochemical features in relation to the minerals of eluvial strata, allowing tracing the ways of terrigenous material transport into sedimentation basins (including diamondiferous material
{"title":"Specific Features of Hydrothermal and Hypergene Alterations of Micaceous Kimberlites","authors":"N. N. Zinchuk","doi":"10.17072/psu.geol.22.1.32","DOIUrl":"https://doi.org/10.17072/psu.geol.22.1.32","url":null,"abstract":"Basing on complex research of accessory and rock-forming minerals of kimberlite rocks of pipes Udachnaya, Nyurbinskaya and Botuobinskaya, the processes of secondary mineral formation have been determined in details. The products of kimberlite rocks alteration have been studied, the scheme of initial minerals transformation has been constructed, typomorphic features of final weathering products have been revealed, the profile of kimberlite rocks’ weathering crust of Nakyn field has been established. It was shown that saponite in Yakutian kimberlite pipes has a hydrothermal origin that make it possible to use it during prospecting of kimberlite bodies under certain conditions. Complex comparative investigation of ancient weathering crusts of rocks of various chemical and mineralogical composition allowed tracing specific features of their hypergene alteration and typomorphic indications of eluvial products that is very important for solving a number of applied tasks. It is possible to differentiate at the structural level the same varieties of primary minerals in redeposited weathering products of various rocks, as well as identify secondary stratified silicates, differing in the last case either by character of octahedral positions’ occupation in their structure, either by the way of mutual superposition of individual silicate layers or by their polytypic character. That is why redeposited in ancient sedimentary thick layers products of various types of weathering crusts preserve structural and chrystallochemical features in relation to the minerals of eluvial strata, allowing tracing the ways of terrigenous material transport into sedimentation basins (including diamondiferous material","PeriodicalId":30663,"journal":{"name":"Vestnik Permskogo Universiteta Seria Geologia","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135709561","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：