SovietRxiv · Open Access in English
Rediscovering the Soviet scientific archive, in English
25357 full-text translations 14926 English PDFs 22539 abstracts
Showing 50 of 25357 papers
This paper describes garnet-bearing nepheline syenite from the Tyrdanov Ulus area in the Kuznetsk Alatau, where alkaline nepheline-bearing rocks occur in the endocontact zone of the Uybat granitoid pluton adjacent to Proterozoic carbonate rocks. Petrographic and chemical observations identify a medi…
This paper examines the hypsometric and structural controls on quartz-gold veins in the Kindikan-Irokinda ore cluster of the South Muya block. Using a structural and elevation-based diagram of known veins, the authors compare vein orientation, distance from the Irokinda fault, elevation, mineral ass…
This article estimates the possible rate of electrochemical gold dissolution in the oxidation zones of quartz sulfide deposits in the Mariinskaya taiga, Kuznetsk Alatau. Using prior experimental data on gold dissolution under applied current and published estimates of natural current densities in su…
This paper reexamines the geological and structural position of the Ob granitoid massif in the Novosibirsk Cis-Ob region, questioning its common interpretation as a set of separate Late Hercynian intrusions. Drawing on geological mapping, geophysical evidence, contact relationships, petrographic obs…
This paper examines the occurrence and probable sources of gold in the vicinity of Tomsk, where earlier reports noted both primary and placer gold but detailed prospecting had been limited. Heavy-mineral sampling of modern channel deposits from several small rivers, combined with microscopic study o…
This paper examines garnets from gold-bearing skarns of the Sayan-Altai folded region, focusing on deposits including Kommunar, Tardan, Lebed, and related ore fields. On the basis of mineralogical, chemical, optical, X-ray, spectral, polarographic, and neutron-activation data, the study distinguishe…
This paper examines the origin and role of gabbroids in variegated gabbro-plagiogranite complexes of the Altai-Sayan folded region, especially in relation to Early Caledonian plutons of the Kuznetsk Alatau. It argues that neither simple hybridization by granite magma nor fully independent gabbroic i…
This paper evaluates typomorphic indicator elements for prospecting antimony and mercury mineralization at the Semiluzhenskoye ore occurrence in Tomsk Region. Using semiquantitative spectral analyses of about 2,000 rock samples from drill cores, outcrops, and areal sampling, the authors applied rank…
This paper examines alkali potassic feldspars as major rock-forming minerals in syenitoids of the Kondoma gabbro-syenite complex, with attention to their composition and implications for crystallization conditions. Using optical determinations, chemical analyses, and two-feldspar thermometry based o…
This study examines the composition of ore-forming hydrothermal solutions and approximate temperatures of mineral deposition at the Lyubavinskoye gold deposit in Central Transbaikalia. Using aqueous extracts from gas-liquid inclusions in vein quartz and altered wall rocks, together with decrepitatio…
The paper reexamines the age, composition, and structural relationships of alkaline and granitoid intrusions on the eastern slope of the Kuznetsk Alatau, especially the debated separation of the Nordmarkite and Kolodzhul intrusive complexes. Using field mapping in the Sokhochul area, supplemented by…
This paper examines the timing and genetic relationships of hydrothermal mineralization in the Sarala gold-bearing district of the Kuznetsk Alatau, where long-lived faulting and repeated magmatism produced several intrusive and dike complexes. On the basis of field relations, mineral assemblages, st…
This paper describes chlorine-bearing minerals identified in skarns and metasomatically altered rocks of the Samson skarn deposit in Khakassia, associated with the Ulen-Tuim granitoid complex. Based on microscopic study of core material, optical measurements, chemical analyses, spectral analyses, an…
This anniversary note surveys the life and professional contributions of Dmitrii Stepanovich Mikov, a Soviet geophysicist and professor at Tomsk Polytechnic Institute. It traces his education, field and research work in Ural geophysical organizations, and later leadership in establishing and develop…
This paper argues that Earth’s internal heat should be considered a climatic factor, particularly in relation to past warm and humid epochs and present climatic fluctuations. It reviews geological and oceanographic observations, including heat flow near mid-ocean ridges, hypothesized changes in Eart…
This paper addresses the optimization of muck removal during the driving of horizontal mineral exploration workings, a process described as accounting for a large share of the driving cycle and strongly influencing equipment choice, productivity, cost, and labor requirements. Using the conditions of…
This paper describes the geological structure and ore localization of the Udarny Pervenets quartz vein deposit in the central Perevalninsk ore field. On the basis of petrographic observations, mineral assemblages, and structural relationships, it distinguishes progressive epidote-amphibolite facies …
This paper examines garnets in the host rocks and ores of the Eldorado deposit as indicators of multistage metamorphic and metasomatic formation processes. On the basis of mineral associations, physical properties, and recalculated chemical compositions, three garnet generations are distinguished: a…
This paper reports laboratory measurements of reservoir oil from well R-1 in the Nikolskoye field, Tomsk Oblast, sampled from the Yu-1 bed at 2380 to 2400 m. Using standard reservoir-oil analysis methods, two samples were examined for saturation pressure, gas content, formation volume factor, densit…
This paper reexamines the stratigraphic age and scope of the Bagrad Formation in the Batenyov Ridge, focusing on its relationship to the Brodovskaya, Kutenbuluk, Kurenin, and Usin units. Using lithological comparisons and reported fossil assemblages, including gastropods, hyoliths, trilobites, archa…
This paper develops a geotectonic interpretation based on a meteoritic hypothesis in which planetary satellites form by collisions and accretion within a planet’s zone of influence, rather than by detachment from the planet. After reviewing objections to lunar detachment theories and estimating the …
The paper presents a formula-based method for estimating the permeability of reservoir Yu-1 in the Olenye oil field from steady-state well inflow tests, accounting for hydrodynamic imperfection caused by perforation geometry and incomplete perforation. Using test data from wells 123, 125, and 129, t…
This paper presents engineering-geological investigations conducted in 1969 to 1971 to predict rock stability for planned open pits at the Abakan brown coal deposit. The study combined field surveys, laboratory and in situ testing, hydrogeological observations, geophysical data, and comparisons with…
The paper examines the reliability of abandonment plugging practices for exploratory wells in the Kuznetsk coal basin, where inadequately sealed boreholes may create pathways for groundwater inflow into future mine workings. Based on field observations and analysis of caliper survey materials, it ar…
This paper examines the lithology and mineralogy of Early to Middle Jurassic deposits of the Tyumen Formation in Tomsk Oblast, addressing inconsistencies in earlier mineralogical correlations based mainly on reference wells. Using core material from exploratory wells studied between 1969 and 1972, i…
The paper examines how to assess errors in estimating mineral reserves and mean reserve parameters at different stages of geological exploration. It argues that the usual division between technical and geological errors is insufficient, and proposes distinguishing geological errors of analogy, typic…
The paper reviews and revises the regional stratigraphic subdivision of Devonian deposits in the Kolyvan-Tomsk folded zone, comparing earlier schemes based on lithology, fossil evidence, and local sections. It argues that several previously correlated units differ in age and distribution, and propos…
This paper examines the formation and filling conditions of oil accumulations at the Bobrovskoye field in Orenburg Oblast using carbon isotope data from oils in the Bashkirian A4 bed and the Oka O2 bed. The authors measured carbon isotope ratios in samples from eight wells, converted the results to …
This paper examines the origin and sedimentary development of the Itkul and Karysh deflation depressions in Khakassia within the Minusinsk intermontane basin. Using geomorphological observations, inferred sedimentary sections, geophysical data, shoreline features, and archaeological indicators, it r…
The paper examines how to analyze the correlation-type integrals introduced by I. I. Gurvich for seismic signals, receiving regions, and reflecting regions when the dimensionality of the underlying random processes is not known. It argues that the usual Wiener-Khinchin cosine transform, appropriate …
This paper examines the material composition, petrogenetic coal types, and seam structure of the Tataurovo brown coal deposit in the Chita region, situated within the Chita-Ingoda intermontane depression. Based on macro- and microscopic study of 360 coal thin sections from 16 boreholes, the authors …
This paper examines the degree and character of organic matter metamorphism in thick brown coal seams from the Tarbagatai, Chernovskoe, and Kharanorskoe deposits of Transbaikalia. Using petrographic study of polished sections and vitrinite reflectance measurements, with attention to factors such as …
This paper examines the disputed stratigraphic boundary between two regional sedimentation cycles in the Mesozoic and Cenozoic platform cover of the West Siberian Plate. Reviewing proposed boundaries at the Barremian to Aptian and Cenomanian to Turonian levels, the author argues that neither is supp…
This paper examines factors limiting the advance rate of horizontal geological exploration workings at the Eldorado gold deposit, where hard schist and quartz vein rocks require drill-and-blast driving with mechanized drilling, loading, and haulage. Based on time-study observations of the operating …
This paper proposes that high electric fields and electrical discharges can arise within dielectric rocks of the lithosphere, rather than being confined to the atmosphere and Earth’s surface. It argues from laboratory experiments, borehole observations, theoretical considerations, and calculations f…
This paper evaluates the oil and gas potential of the contact zone between the Mesozoic sedimentary cover and Paleozoic basement in Tomsk Oblast, focusing on the basal horizon of the Tyumen Formation and weathered or fractured basement rocks. Drawing on well tests, drilling observations, lithologic …
This paper discusses the proposed use of the biophysical effect, defined as spontaneous movement of a handheld metal frame by an operator, for mineral and hydrocarbon prospecting. Based on field investigations conducted on foot, by automobile, and by helicopter at nickel weathering crusts, chromite …
This study examines the initial plant material and paleogeographic conditions involved in the formation of the principal brown coal seams at the Tataurovo deposit in the Chita-Ingoda depression of Central Transbaikalia. Using organographic study of fossil plant remains, drill-core observations, coal…
This article examines the early nineteenth century Russian scholar I. D. Ertov as a precursor of mobilist ideas, especially continental drift and accretionary cosmogony. Through a review of Ertov’s works from 1798, 1811, and 1829, it traces his hypotheses on the formation of planets and satellites f…
This paper reviews the occurrence of oil, gas-condensate, and gas fields at depths greater than about 4.5 km, drawing mainly on exploration results from the United States with comparisons to the USSR, France, Venezuela, and other regions. It summarizes examples from major petroleum provinces, includ…
This paper examines the hydrodynamic imperfection of oil wells caused by incomplete perforation of the productive formation, with particular attention to the flow-constriction zone between the perforation-hole influence region and the plane-radial flow region. It formalizes a classification of incom…
This paper reports laboratory measurements of the physical properties of formation waters from several oil fields and exploratory areas in Tomsk Oblast, including the Cheremshanskaya, Strezhevoy, and Pervomaiskoye sites. Using procedures analogous to those applied to formation oils, the authors dete…
This paper examines whether average advance rates for horizontal exploratory mine workings in RSFSR geological organizations could be raised to 250 m per month. Drawing on production statistics, examples of high-speed drifting crews, and analysis of drilling, blasting, loading, transport, support, r…
This paper presents petrographic study of coal interbeds from the Kvartovaya, Nizhne-Tabaganskaya, and Kalinovaya areas of Tomsk Oblast, mainly within the Vasyugan Formation, with one sample from the Bazhenov Formation. Using polished and thin polished sections, microcomponent counts, and the GOST 9…
This paper reports laboratory determination of the physical properties of reservoir oil from the Lotyn-Yakh field in Tomsk Oblast, using a sample collected from well 63 in July 1974. The authors apply an established procedure with an added calculation method to improve estimation of the final volume…
This paper addresses the engineering-geological significance of widespread bog formation in the Alexandrovskoye Ob region, where waterlogging strongly affects conditions for civil, pipeline, and road construction. Using engineering-geological survey materials, aerial observations, and aerial photogr…
This paper addresses the typification of engineering-geological conditions in the Aleksandrovskoye Ob region as a step beyond conventional engineering-geological zoning, which identifies territorially distinct units but does not readily support comparison or extrapolation among similar areas. Using …
This paper examines how geochemical barriers affect the formation and interpretation of aqueous dispersion flows of heavy metals in the Kolyvan-Tomsk zone. Using observations of modern spring deposits and ancient epigenetic formations, including travertines, iron and manganese hydroxides, limestones…
This paper examines the problem of distinguishing low-frequency magnetic anomalies of different origins when their conventional parameters are similar, making standard separation methods ineffective. It proposes using spatial statistical relationships between magnetic-field variations, terrain relie…
This paper proposes a biostratigraphic subdivision of the lower Middle Cambrian deposits of the Batenev Ridge, based on multiyear study of sections in the Mount Balykhtag, Podtemny Log, Kurenei, and adjacent areas. Using lithological succession and trilobite and archaeocyath assemblages, the Efremki…
