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 study compares tar distillates obtained from thermal decomposition of peat ore materials with distillates from peat semicoking tar. The authors distilled the tars under nitrogen, separated neutral oils and phenolic fractions, and analyzed light fractions by gas liquid chromatography using packe…
This paper develops an extraction amalgam polarographic method with accumulation for determining trace antimony in model high-purity 0.8% sodium chloride and 0.5% hydrochloric acid solutions. The authors examine chloroform extraction of trivalent antimony as a diethyldithiocarbamate complex, select …
This study examines how moisture redistribution during convective bed drying affects the strength of green iron ore pellets. Laboratory pellets made from concentrate, limestone, and bentonite were dried in a vertical bed with hot air supplied from above, while moisture content and mechanical strengt…
This study examines shrinkage and deformation during drying of iron ore pellets and related charge materials, focusing on the effects of drying temperature, material composition, dispersion, and initial moisture content. Laboratory pellets made from magnetite concentrate, limestone, bentonite, and m…
The study examines how additions of Makharadze bentonite affect the mechanical strength and thermal stability of green iron ore pellets made from Sokolov-Sarbai magnetite concentrate, as well as the strength of pellets fired at 1200°C. Laboratory pelletizing tests were carried out with 0 to 5% bento…
This study examines intensification of granulation for alkali-containing window-glass batches by replacing calcined soda with sodium carbonate monohydrate. Sodium carbonate monohydrate was prepared from decahydrate and compared with calcined soda in particle size, specific surface area, plastic stre…
This study examines the swelling behavior of several bentonites used as binders in iron ore concentrate pelletizing, with attention to both equilibrium swelling and swelling kinetics under conditions closer to industrial practice. The authors compare swelling volume and swelling moisture in distille…
This study examines the thermal decomposition of soda and sodium sulfate decahydrate crystal hydrates, materials that influence the aggregate behavior of moistened glass batches. Prepared soda decahydrate and standard sodium sulfate decahydrate samples were held at 22, 45, and 60°C, periodically wei…
Industrial trials were conducted at the Kemerovo Coke-Chemical Plant to assess whether technical manganese sulfate additives could improve ammonium sulfate crystallization in coke-chemical saturators, including under temporary departures from normal operating conditions. Manganese sulfate was introd…
This study examines how the particle size of synthesized fluorophlogopite powder and the amount of orthophosphoric acid binder affect the sinterability of mica ceramics intended for heat-resistant insulating and vacuum-tight applications. Fine-crystalline fluorophlogopite was produced by solid-phase…
This study examines phase changes during heating of fluorophlogopite mica batches, first using a simplified talc and potassium silicofluoride mixture and then a stoichiometric normal fluorophlogopite charge. Differential thermal, thermogravimetric, X-ray phase, and microscopic analyses indicate earl…
This paper analyzes the global distribution of giant oil and gas fields by comparing their tectonic setting, stratigraphic age, reservoir lithology, depth, trap type, and sealing conditions. Using examples from platforms, marginal troughs, and intermontane basins, it argues that giant accumulations …
The paper argues for systematic exploration of lithological gas and gas-condensate accumulations in the southern part of Tomsk Oblast, using drilling results from the Ostanino and Mirnaya structures on the western slope of the Pudin arch. It describes how seismic interpretation and deep exploratory …
This paper examines the morphology of pyrite crystals from the Lyubavinskoye and Nikolayevskoye gold ore deposits in Central Transbaikalia and relates crystal forms to stages of ore formation. On the basis of mineralogical observations, the authors distinguish 18 morphological types across four pyri…
The paper examines the relationship between magmatism and gold mineralization in the Lyubavinskoye ore field of Central Transbaikalia. It characterizes the intrusive assemblage as Triassic granitoids and a Middle to Upper Jurassic dike complex, distinguishing acidic dikes from younger lamprophyre se…
This paper describes the intrusive rocks of the Alguy ore field, a talc-bearing area hosted by Upper Proterozoic dolomites and controlled by a northeast-striking tectonic zone. On the basis of petrographic observations, mineral compositions, alteration features, and spatial relations, it characteriz…
This paper presents detailed hydrogeochemical investigations of the Semiluzhenskoe antimony ore occurrence, aimed at identifying aqueous dispersion anomalies of antimony and mercury using sensitive analytical methods. The authors describe the geological setting, distinguish aquifer complexes in Ceno…
This paper examines microorganisms inhabiting pore solutions in rocks of the Kolyvan-Tomsk fold zone and their possible role in forming groundwater chemistry. The authors isolated autotrophic bacterial cultures, primarily related to thionic bacteria, from pore waters of weathering-crust clays using …
This paper examines the tectonic setting of the Anzherka coal deposit in the northeastern Kuznetsk Basin, emphasizing its position between the Kuznetsk Alatau and the Tomsk Kolyvan folded region. On the basis of stratigraphic, facies, drilling, mapping, geophysical, and earlier published data, it re…
This paper proposes a technical and economic method for comparing directional drilling deflectors under specific drilling conditions. It argues that assessment by separate changes in inclination and azimuth is insufficient, and instead uses spatial curvature intensity, adjusted for natural borehole …
This paper reports laboratory and calculation-based characterization of oil from the B-Kh reservoir of the Severnoye field in Tomsk Oblast, using a sample from well 204 and well-test data from stabilized flow regimes. The study determines reservoir oil properties including saturation pressure, gas c…
This study examines spatial variability in the magnetization of rocks enclosing gold sulfide mineralization in the Darasun ore field, focusing on differences within the same rock types caused by secondary hydrothermal processes rather than petrographic diversity. Magnetic susceptibility and remanent…
This article summarizes engineering-geological investigations conducted to support planned expansion of the Nazarovo open-pit coal mine. Based on detailed mapping, borehole and pit-wall testing, and laboratory study of rock monoliths, it characterizes the Jurassic and Quaternary strata, groundwater …
The article addresses engineering-geological investigation methods needed for planning large open-pit brown-coal mines in Siberia, especially in the Kansk-Achinsk Basin, where quarry depth and slope stability are major design concerns. It outlines a staged methodology beginning with preliminary expl…
This paper examines the petrographic and material composition of brown coals from the Moshchnyi seam of the Kharanor deposit in Eastern Transbaikalia. Based on macroscopic observations and microscopic study of 273 samples in polished sections and blocks, the coal is characterized mainly by vitrinite…
This study examines whether native gold can dissolve in aqueous media produced by oxidation of pyrite, galena, and chalcopyrite under near-surface conditions without forced oxygen supply. Long-duration laboratory experiments used natural sulfides, calcite, and native gold alloy in initially weakly a…
The paper proposes a gravitational-plasma hypothesis for terrestrial magnetism in which centrifugal effects in a rotating, high-pressure plasma core separate heavy positive ions from electrons, producing moving charge distributions that generate magnetic fields. It develops an approximate model of t…
This paper compares basaltoids from three volcanogenic strata in the Yulia Mine area of the Kuznetsk Alatau, assigned to the Upper Proterozoic, Middle Cambrian, and Lower Devonian, in order to clarify whether disputed volcanic units belong to one or several stratigraphic suites. Using petrographic, …
This article addresses the problem of controlling flushing fluid flow during geological exploration drilling, especially in small-diameter wells where existing pumps and bypass regulation can worsen abnormal downhole conditions. It argues that available flowmeters were either unreliable or only indi…
This paper addresses sampling difficulties in geological exploration boreholes drilled through rocks and minerals that are easily washed out, fractured, or selectively abraded by flushing fluid. It reviews the limitations of double core barrels, reverse circulation methods, and existing ejector barr…
This paper revises the biostratigraphic interpretation of Cambrian deposits on the Batenev Ridge and Azyrtal Range, focusing on the Azyrtal, Suyaryk, Obruchev, and related faunal complexes. Using lithologic observations, stratigraphic sections, and comparative lists of trilobite and archaeocyathid a…
The paper argues for determining the specific gravity of oil directly in wells as a way to verify reservoir oil property analyses and reduce the labor associated with repeated sampling and laboratory work. It explains the standard calculation of reservoir specific gravity from surface specific gravi…
This paper examines the reservoir oil properties and permeability of reservoir A-X in the South Cheremshan field, using samples from well 335 analyzed under reservoir conditions. It reports low gas content, saturation pressure, and formation volume factor relative to many other Tomsk Oblast oils, ch…
The paper addresses the development of offshore oil and gas fields in sea areas affected by drifting ice, where pile-supported drilling and production structures are vulnerable to damage. It proposes drilling from a trimaran-type floating platform supported by three long rocking float-vessels intend…
This paper examines the hydrogeochemistry of groundwater in Jurassic sedimentary deposits and associated igneous formations in the central Kuzbass, with attention to water abundance, recharge and discharge conditions, and trace element composition. It relates groundwater chemistry to lithology, stru…
This article reviews available a priori assumptions about probability distribution laws for common engineering-geological indicators of rock properties. It argues that granulometric characteristics lack sufficient established evidence, while water-physical properties often may be modeled by normal d…
This article examines factors that determine the distribution laws of indicators of the engineering-geological properties of rocks, with attention to their practical role in design parameters, sampling systems, and rock classification. It reviews how effective heterogeneity, scale effects, functiona…
This paper examines how the density of exploration points should be evaluated in relation to regular and random variations in mineral body parameters such as thickness, grade, and volumetric weight. It argues that conventional probabilistic estimates based mainly on the number of observations and ra…
The paper addresses the difficulty of objectively assigning solid mineral deposits or deposit sectors to exploration complexity groups when selecting exploration grid density at the detailed exploration stage. It proposes a formalized geological grouping scheme for bedrock ore and coal deposits base…
The paper discusses engineering-geological investigation methods for large Siberian brown-coal deposits intended for high-capacity open-pit mining, with emphasis on the Kansk-Achinsk basin. It proposes a staged program beginning during preliminary exploration and continuing through detailed explorat…
This paper examines the genesis of intrusive and effusive rocks in the Goryachegorsk alkaline volcano-plutonic complex, situated near the junction of the Kuznetsk Alatau and the Chulym-Yenisei depression. On the basis of field relations, trace-element behavior, petrochemical variation diagrams, and …
This paper addresses the interpretation of magnetic anomalies when geological bodies are not vertically magnetized, a condition that can substantially alter anomaly form and lead to errors in estimating body geometry. It reviews formula-based methods for deriving magnetization direction from magneti…
This paper presents an album of technological charts intended to improve the mechanized driving of main horizontal and inclined mine workings during mine construction in Kuzbass. Drawing on domestic and foreign high-speed tunneling practice and the experience of leading Kuznetsk Basin brigades, the …
This paper presents the development of technological charts for high-speed driving of small-section horizontal mine workings during exploration and development of the Eldorado gold deposit. Drawing on Soviet and international practice, as well as the experience of leading heading crews, the authors …
This paper examines the oxidation zones of sulfide ore occurrences in the Kolyvan-Tomsk zone as a means of refining geochemical and geophysical anomalies during mineral exploration. Based on field sampling from outcrops and workings, petrographic, spectral, microchemical, X-ray, and electron-microsc…
This paper reports palynological evidence for Early Triassic deposits in the central West Siberian Plain, based on samples from deep wells in Tomsk Oblast near Strezhevoy and Kenga. Spore and pollen assemblages from sandy clay deposits are compared with established Early Triassic assemblages of the …
This paper examines how structural and tectonic complexity affects coal exploration in the Kuznetsk Basin, where earlier threefold classifications are judged too schematic for practical use. Drawing on mine geological observations, exploration data, and regional tectonic interpretations, the authors…
This paper examines spontaneous nucleation and early growth of yttrium and lead ferrite crystals from molten oxide-fluoride solutions, with emphasis on collective effects in the surface layer before crystallization. Using direct microscopic observation during cooling and subsequent study of the init…
This paper examines the initial growth morphology of yttrium ferrite crystals crystallized from a molten complex solvent containing yttrium, iron, lead oxide, and lead fluoride components. Using direct microscopic observation and subsequent examination of crystals grown in open crucibles, the author…
This paper examines how crushing size affects the extraction and preservation of accessory minerals from igneous rock samples prepared as artificial heavy-mineral concentrates. Using granites and aplites of the Belokamenka complex, with additional observations on gabbro and nordmarkite samples, the …
