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Moscow University Bulletin. Series 4. Geology最新文献

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Theoretical foundations of geoecology as an interdisciplinary science, built on the basis of the concept of ecological functions of abiotic spheres of the Earth 地质生态学作为一门交叉学科的理论基础，建立在地球非生物圈生态功能概念的基础上
Moscow University Bulletin. Series 4. Geology Pub Date : 2022-01-29 DOI: 10.33623/0579-9406-2021-5-3-12
V. Т. Trofimov
{"title":"Theoretical foundations of geoecology as an interdisciplinary science, built on the basis of the concept of ecological functions of abiotic spheres of the Earth","authors":"V. Т. Trofimov","doi":"10.33623/0579-9406-2021-5-3-12","DOIUrl":"https://doi.org/10.33623/0579-9406-2021-5-3-12","url":null,"abstract":"Six scientific-informative paradoxes of the current state of geoecology are determined. New theoretical foundations of geoecology as an interdisciplinary science, developed on the basis of the concept of ecological functions of Earth abiotic spheres, are formulated. They include ideas about the content, object, subject, logical and scientific structures of geoecology, geoecological conditions and their condition, the position of geoecology in the system of sciences about the Earth and the biosphere.","PeriodicalId":253271,"journal":{"name":"Moscow University Bulletin. Series 4. Geology","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126789512","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
Model of hydrocarbon compounds distribution in pore space of bazhenov horizon 巴治诺夫层位孔隙空间烃类分布模式
Moscow University Bulletin. Series 4. Geology Pub Date : 2022-01-29 DOI: 10.33623/0579-9406-2021-6-98-109
M. Tikhonova, A. Kalmykov, D. Ivanova, O. Vidishcheva, G. Kalmykov, R. B. Borisov
{"title":"Model of hydrocarbon compounds distribution in pore space of bazhenov horizon","authors":"M. Tikhonova, A. Kalmykov, D. Ivanova, O. Vidishcheva, G. Kalmykov, R. B. Borisov","doi":"10.33623/0579-9406-2021-6-98-109","DOIUrl":"https://doi.org/10.33623/0579-9406-2021-6-98-109","url":null,"abstract":"The article provides the results of the hydrocarbon compounds (HCS) molecular composition in open and closed pores of the Bazhenov horizon source rocks studying. Extraction with solvents of different polarity allows to withdraw additional HCS from both open and closed pores of rock samples, and their composition systematically differs both in the distribution of normal alkanes and in the values of biomarker parameters characterizing the maturity and sedimentary conditions. HCS in open pores is more thermally maturated than HCS in closed pores, and in both cases, maturity can decrease in blocked pores, especially in those sealed with soluble in alcohol-benzene resins-asphaltenes. The values of parameters Pr/Ph and dia/(dia+reg)C27 are higher for bitumen in open pores, but the values of C29/C30 and H35S/H34S are much higher for bitumen in closed pores, and can vary in blocked pores with respect to the open ones. As a result, a improved model of HCS distribution in the pore space was proposed, which shows the presence of residual light HCS in open pores, as well as two types of blocked pores, in which HCS are sealed by different resins-asphaltenes in both open and closed pore spaces.","PeriodicalId":253271,"journal":{"name":"Moscow University Bulletin. Series 4. Geology","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124493168","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
The initial stage of Early Carboniferous rifting in the Southern Urals: fi rst results of zircon U-Pb dating from granitoids of Neplyuevka complex 南乌拉尔早石炭世裂陷初期:Neplyuevka杂岩花岗岩锆石U-Pb定年初步结果
Moscow University Bulletin. Series 4. Geology Pub Date : 2022-01-29 DOI: 10.33623/0579-9406-2021-6-40-48
A. V. Tevelev, I. Sobolev, A. Borisenko, N. Pravikova, A. J. Kazansky, E. V. Koptev, I. Kosheleva, J. Žák
{"title":"The initial stage of Early Carboniferous rifting in the Southern Urals: fi rst results of zircon U-Pb dating from granitoids of Neplyuevka complex","authors":"A. V. Tevelev, I. Sobolev, A. Borisenko, N. Pravikova, A. J. Kazansky, E. V. Koptev, I. Kosheleva, J. Žák","doi":"10.33623/0579-9406-2021-6-40-48","DOIUrl":"https://doi.org/10.33623/0579-9406-2021-6-40-48","url":null,"abstract":"Zircons from the Early Carboniferous granitoids of the Neplyuevkа massif of the South Urals have been dated (SHRIMP). Two different age groups are distinguished among the studied zircons: 1 — from 334 to 342 Ma; 2 — from 354 to 356 Ma. The older ages probably correspond to the time of zircon crystallization from the melt, while the younger ages resulted from a partial loss of radiogenic lead by zircon during the cooling of the massif or from thermal impact of Early Carboniferous or even Early Permian intrusions. The formation of the Neplyuevkа complex at the very beginning of the Carboniferous marks the most important stage in the geodynamic evolution of the Southern Urals — a rapid transition from island arc magmatism, which continued during Devonian, to riftogenic magmatism, which ended only in middle Visean.","PeriodicalId":253271,"journal":{"name":"Moscow University Bulletin. Series 4. Geology","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116593852","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: 2
Neopleistocene aqifer sistem in the astrakhan gas condensate field: specifics, structure and models of formation 阿斯特拉罕凝析气田新新世含水层系统:特征、结构和形成模式
Moscow University Bulletin. Series 4. Geology Pub Date : 2022-01-29 DOI: 10.33623/0579-9406-2021-5-61-70
O. Golovanova, K. E. Pitjeva
{"title":"Neopleistocene aqifer sistem in the astrakhan gas condensate field: specifics, structure and models of formation","authors":"O. Golovanova, K. E. Pitjeva","doi":"10.33623/0579-9406-2021-5-61-70","DOIUrl":"https://doi.org/10.33623/0579-9406-2021-5-61-70","url":null,"abstract":"The paper presents an analysis of materials from studies of the Neopleistocene sedimentary complexes and aquifer system: lithological, mineralogical-geochemical, hydrogeochemical, hydrogeofiltration and hydrogeomigration in the region of development of the Astrakhan gas condensate field (AGCF). The main provisions of the model of the formation of groundwater, the specifics of their balance, the chemical composition of hydrogeodynamics, hydrogeomigration, and the main governing factors are formulated. The predominance of marine sediments in complexly constructed strata of the Neopleistocene, with a significant role of clay layers and fragmentary traces of continental development, was revealed. Facies and sedimentary environments characteristic of large deltas and shallow marine areas, like the modern North Caspian, have been identified. The system of deltas and deltas of large and small streams is considered with the involvement of geomorphological, landscape-climatic and geodynamic factors for the development of a model for the formation of the studied strata.In the upper part of the litho-hydrosphere of the AGKM region, a specific landscape-geomorphological pattern was revealed, reflecting the systems of zones of geodynamic instability on a scale of the first hundreds of meters-kilometers. In a significant part of the study area, an association of areas of the greatest thickness and conductivity of aquifers of the Neopleistocene complex with interdome depressions of deep halogenetic structures was revealed. The results obtained are relevant for the development of a model for the formation of aquatic-rock complexes of the Neopleistocene and management of the development of AGCF: identifying ways of spreading pollution; reducing the risk of accidents due to the instability of the foundations of the gas complex facilities and many others.","PeriodicalId":253271,"journal":{"name":"Moscow University Bulletin. Series 4. Geology","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122907427","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
Application of methods of structural petrophysical analysis for estimating metamorphogenic transformations of host rocks and ores of Dzhusa massive sulfide deposit (South Urals) 构造岩石物理分析方法在南乌拉尔珠萨块状硫化物矿床主岩及矿石变质作用评价中的应用
Moscow University Bulletin. Series 4. Geology Pub Date : 2022-01-29 DOI: 10.33623/0579-9406-2021-6-77-85
A. A. Burmistrov, I. Vikentyev, E. I. Yartsev
{"title":"Application of methods of structural petrophysical analysis for estimating metamorphogenic transformations of host rocks and ores of Dzhusa massive sulfide deposit (South Urals)","authors":"A. A. Burmistrov, I. Vikentyev, E. I. Yartsev","doi":"10.33623/0579-9406-2021-6-77-85","DOIUrl":"https://doi.org/10.33623/0579-9406-2021-6-77-85","url":null,"abstract":"Based on a comparison of the chemical composition and a number of petrophysical and thermodynamic parameters of changed to varying degrees syn-ore and post-ore Devonian gabbroids of the Dzhusa pyrite-polymetallic deposit (South Ural), the principal possibility of quantifying the grade of their alteration and transformation related with the hydrothermal post-volcanic and dynamic metamorphism is shown.","PeriodicalId":253271,"journal":{"name":"Moscow University Bulletin. Series 4. Geology","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123799019","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
Conditions for the formation sellaite in saline deposits 盐酸盐矿床形成的条件
Moscow University Bulletin. Series 4. Geology Pub Date : 2022-01-29 DOI: 10.33623/0579-9406-2021-5-71-74
A. Savenko, V. Savenko
{"title":"Conditions for the formation sellaite in saline deposits","authors":"A. Savenko, V. Savenko","doi":"10.33623/0579-9406-2021-5-71-74","DOIUrl":"https://doi.org/10.33623/0579-9406-2021-5-71-74","url":null,"abstract":"The conditions for precipitation of magnesium fluoride (sellaite) from seawater with salinity of 35–105‰ were experimentally determined. It was established that precipitation of MgF2 at salinity of 35, 70, and 105‰ occurs at the concentration of dissolved fluorine above 37, 46, and 51 mg/l, respectively. In isolated evaporitic basins, the fluorine concentration required for the formation of sellaite is not achieved at all stages of the evaporation of seawater. It is assumed that high concentration of fluorine sufficient for the precipitation of sellaite arise as a result of the combined effect of evaporation and additional inflow of this element into evaporitic basins with river runoff or/and the release of coprecipitated and adsorbed fluorine during of postsedimentary recrystallization of salt minerals.","PeriodicalId":253271,"journal":{"name":"Moscow University Bulletin. Series 4. Geology","volume":"257 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117049519","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
The structure of the tectonosphere the Mozambique and Madagascar ridges by geophysical data 用地球物理资料研究莫桑比克和马达加斯加脊构造圈的结构
Moscow University Bulletin. Series 4. Geology Pub Date : 2022-01-29 DOI: 10.33623/0579-9406-2021-6-20-29
D. A. Ryzhova, M. Kosnyreva, E. Dubinin, A. Bulychev
{"title":"The structure of the tectonosphere the Mozambique and Madagascar ridges by geophysical data","authors":"D. A. Ryzhova, M. Kosnyreva, E. Dubinin, A. Bulychev","doi":"10.33623/0579-9406-2021-6-20-29","DOIUrl":"https://doi.org/10.33623/0579-9406-2021-6-20-29","url":null,"abstract":"The study area occupies the southwestern part of the Indian Ocean, where the Mozambique and Madagascar ridges are located. Ideas about the tectonic structure of these ridges are still debatable. The anomalous structure of the crust of these ridges can be explained either by underplating — thickening of the oceanic crust from below due to magmatism, or by stretching and thinning of the continental crust. Based on the data on anomalous gravitational and magnetic fields, seismotomography, and other geological and geophysical information, density modeling was performed for four profiles, which revealed differences in the crustal structure and evolution of the Mozambique and Madagascar ridges.","PeriodicalId":253271,"journal":{"name":"Moscow University Bulletin. Series 4. Geology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129265500","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: 1
Exploration of overlapped endogenous mineralization on the basis of paleovolcanic reconstructions 古火山重建基础上的叠置内源矿化勘探
Moscow University Bulletin. Series 4. Geology Pub Date : 2022-01-29 DOI: 10.33623/0579-9406-2021-5-31-38
A. Kotelnikov, V. Dyakonov, A. Dergachev
{"title":"Exploration of overlapped endogenous mineralization on the basis of paleovolcanic reconstructions","authors":"A. Kotelnikov, V. Dyakonov, A. Dergachev","doi":"10.33623/0579-9406-2021-5-31-38","DOIUrl":"https://doi.org/10.33623/0579-9406-2021-5-31-38","url":null,"abstract":"By these days issues of survey of blind and covered deposits are very actual. High affectivity of geological and prospecting abilities could be achieved only when complex studies have been done which allow to indicate structural elements of explores area and evaluate geological and geochemical potential of prospective areas. In the article the structural and geochemical criterion developed by authors is considered. Its use is preceded by definition of the structural and geological characteristic of the territory based on the method of paleovolcanic reconstruction. At the later stage areas, perspective for detection of an ore mineralization are outlined basing on localization of various type of a mineralization at specified structural units of paleovolcanic structures. Application of geochemical mapping within the perspective areas allows to estimate prospects of the areas, to allocate most perspective sites with their preliminary geochemical estimate.","PeriodicalId":253271,"journal":{"name":"Moscow University Bulletin. Series 4. Geology","volume":"76 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128067680","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
Three-dimensional inversion of magnetotelluric sounding data in the Southern Ladoga area 南拉多加地区大地电磁测深资料三维反演
Moscow University Bulletin. Series 4. Geology Pub Date : 2022-01-29 DOI: 10.33623/0579-9406-2021-6-133-141
V. Kulikov, A. P. Ionicheva, A. Korolkova, P. Pushkarev, E. Sokolova, A. Yakovlev
{"title":"Three-dimensional inversion of magnetotelluric sounding data in the Southern Ladoga area","authors":"V. Kulikov, A. P. Ionicheva, A. Korolkova, P. Pushkarev, E. Sokolova, A. Yakovlev","doi":"10.33623/0579-9406-2021-6-133-141","DOIUrl":"https://doi.org/10.33623/0579-9406-2021-6-133-141","url":null,"abstract":"The article presents the results of the interpretation of magnetotelluric soundings performed in the Southern Ladoga region. When performing the 3D inversion, both new data obtained by the LADOGA working group in 2018–2021 and data from the profile 1-EV (the “Loop” section) worked out in the early 2000s were used. Based on the results of automatic inversion performed in the ModEM program (Egbert and Albert), a three-dimensional geoelectric model of the earth’s crust to a depth of 60 km is constructed, which shows the complex heterogeneous structure of the studied territory.In the geoelectric model, two anomalous zones of core electrical conductivity of the south-eastern and north-eastern directions are distinguished, the first of which is a continuation of the well-known Ladoga anomaly. The presence of the second conducting structure confirms the results of single magnetovariational sounding performed by Igor Ivanovich Rokityansky in different parts of the East European Platform in the early 80s of the last century.","PeriodicalId":253271,"journal":{"name":"Moscow University Bulletin. Series 4. Geology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128337533","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
Hybrid receiving line for broadband electric field measurement 用于宽带电场测量的混合接收线
Moscow University Bulletin. Series 4. Geology Pub Date : 2022-01-29 DOI: 10.33623/0579-9406-2021-5-54-60
N. I. Zorin, A. Yakovlev
{"title":"Hybrid receiving line for broadband electric field measurement","authors":"N. I. Zorin, A. Yakovlev","doi":"10.33623/0579-9406-2021-5-54-60","DOIUrl":"https://doi.org/10.33623/0579-9406-2021-5-54-60","url":null,"abstract":"High-frequency electric field measurements with a regular receiving dipole characterized by poor electrode contact are greatly influenced by the capacitive currents arising between wires and ground. At the same time, making use of the non-contact receiving dipoles is not generally suitable for low-frequency electric field measurements.We introduce a novel hybrid galvanic-capacitive receiving dipole, which could be used for broadband electric field measurement even with high contact resistance of the grounded electrodes.","PeriodicalId":253271,"journal":{"name":"Moscow University Bulletin. Series 4. Geology","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122863862","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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