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 examines the geomorphological controls on the distribution and preservation of nickel-bearing weathering crusts developed on Ural hyperbasites. It argues, using regional geomorphological comparisons and earlier geological interpretations, that these Triassic to Jurassic crusts are chiefly…
This paper examines geological controls on the localization of supergene nickel deposits associated with weathering crusts of ultrabasic rocks. Using comparative examples from the USSR, Europe, the Americas, Asia, and island regions, it argues that many deposits are linked to preserved Mesozoic and …
This study examines the distribution of heavy-fraction minerals in Mesozoic deposits from the Pudin reference borehole in the Tomsk region, using more than 450 mineralogical samples treated as realizations of random time series. Probabilistic, correlation, and spectral analyses reveal periodically r…
The paper examines how potassium-bearing rocks and minerals may change in electrical conductivity over geological time, especially under metamorphic heating and through the accumulation of potassium-40 decay products. Using laboratory heating and cooling of rock samples from the Sorsk molybdenum dep…
This paper examines potassium-feldspathized intrusive rocks from massifs on the eastern slope of the Kuznetsk Alatau using temperature-dependent specific electrical conductivity as a basis for estimating absolute age and interpreting metasomatic alteration. Rock plates from potassium-rich samples we…
This paper examines how geological processes and time may influence the high-temperature electrical conductivity of potassium-bearing minerals and rocks, especially potassium feldspar and muscovite. It relates observed conductivity changes during heating and cooling experiments to dehydration, polym…
This paper analyzes schematic principles used in deflectors for directional drilling of core exploratory boreholes. It compares tools that curve a borehole by applying a lateral deflecting force with tools that achieve curvature by skewing the rock destroying tool or drilling assembly, identifying l…
This paper reassesses the stratigraphic position and age of the Litvinovskaya phosphorite-bearing sequence in the Batenevsky Ridge, addressing earlier disagreements that variously assigned it to Lower Cambrian or Upper Precambrian units. Using field relationships, lithologic description, phosphatic …
This paper reexamines Triassic deposits in the northeastern West Siberian Lowland, where earlier work had recognized only Lower Triassic formations on the Malo-Khetsky swell. Using lithological comparison, borehole data, electric-log characteristics, and a spore-pollen assemblage from well 2-R in th…
The paper addresses the problem of accounting for the influence of magnetic terrain relief on observed magnetic anomalies, especially in mountainous areas where existing analytical relations were largely limited to isolated bodies and simple observation surfaces. It derives recurrent analytical expr…
This paper investigates the forms in which nickel migrates in acidic and neutral sulfate groundwaters from the oxidation zone of the Norilsk copper and nickel deposit, a question important for hydrogeochemical prospecting. Using colorimetric nickel determination together with ceramic filtration, dia…
This paper examines the distribution of uranium and thorium in related volcanic and intrusive rocks from a central-type paleovolcano in the northeastern mountain frame of the North Minusinsk Depression. Based on uranium determinations in 144 samples and thorium determinations in 63 samples, it compa…
This article examines regional patterns of recharge, circulation, discharge, and resource formation in the groundwater of the Kolyvan-Tomsk folded zone in relation to its two-tier geological structure and surrounding tectonic units. Using regional water-balance methods, low-water river discharge mea…
This paper examines typomorphic features of pyrite from several Siberian, Ural, Transbaikalian, and Far Eastern gold ore deposits by comparing crystal morphology, thermoelectric properties, and impurity distributions in quartz veins and near-ore altered rocks. The study identifies common pyrite form…
This paper presents measurements of reservoir oil properties and an estimate of sandstone permeability for horizon Yu-1 in well 71 of the Ozernoye field, Tomsk Region. Oil samples were examined under reservoir and surface conditions using a reservoir-oil apparatus with a high-pressure viscometer, wi…
This paper examines the petrochemistry of Late Precambrian effusive rocks on the eastern slope of the Kuznetsk Alatau, a topic previously less developed than their stratigraphic and petrographic classification. Using available chemical analyses recalculated into numerical petrochemical parameters an…
This paper reviews new exploration results bearing on the gas and condensate potential of the Pudino arch in Tomsk Oblast, with emphasis on the Mirnaya and Ostanino structures between the previously discovered Luginetskoye and Kazanskoye fields. Using seismic structural interpretation, drilling data…
Structural geological mapping and follow-up drilling from 1968 to 1970 reassessed the Abakan iron ore deposit, whose prospects had previously been considered limited to known ore bodies. The study subdivides the ore-bearing Upper Monok Formation, identifies western and eastern ore-bearing structures…
This paper examines the petrographic composition, petrogenetic coal types, and internal structure of the thick Novyi-1a seam in the Kharanor lignite deposit of Eastern Transbaikalia. Using coal-petrographic descriptions of microcomponent groups, including vitrinite, fusinite, and liptinite, it disti…
This paper examines factors affecting drilling and blasting performance in exploratory workings at the Eldorado gold ore deposit, where hard schist and quartz vein rocks require blasting methods. Based on production experiments, the authors compare cut designs for workings driven across rock strike …
This paper examines the occurrence and migration of antimony in groundwater associated with gold ore and related deposits of the Kurama Range, with attention to its possible use in hydrogeochemical prospecting. Groundwater samples from the Kochbulak, Aktyurpak, Kurgashinkan, and Kalmakyr deposits we…
This study examines gas-phase purification of finely ground corundum contaminated with iron oxides from steel-ball vibromilling, as an alternative to labor-intensive hydrochloric acid washing that causes losses of fine alumina. White corundum powder was treated in a quartz reactor with a carbon diox…
This study examines the electrochemical behavior of trivalent arsenic on graphite, platinum, and gold solid electrodes in 1 M hydrochloric acid under film polarography with accumulation conditions. The authors analyze anodic currents as functions of pre-electrolysis potential, arsenic concentration,…
This study examines the transesterification of dimethyl phosphite with aromatic alcohols of the guaiacyl and veratryl series, focusing on how ring substituents and hydroxyl position in the propyl side chain affect reactivity. Reactions were carried out without solvent or catalyst under helium at 100…
The study examines adsorption of beta-naphthol on mercury in 0.1 N sulfuric acid, motivated by its use as a regulator of cathodic tin deposit growth. Adsorption was investigated using electrocapillary curves and differential capacitance measurements on a dropping mercury electrode, with adsorption v…
This paper examines granulation as a method for improving preparation of window glass batches with about 20 percent alkali components, aiming to reduce dusting, segregation, high moisture, additives, and drying requirements. Using the batch composition of the Anzhero-Sudzhensk Glass Plant, the autho…
This study examines how a soluble manganese sulfate microadditive affects the kinetics and particle-size evolution of ammonium sulfate crystallization. Crystallization experiments were conducted isothermally at 32 degrees C from an ammonium sulfate suspension in 6% sulfuric acid during ammonia chemi…
The paper examines how adsorption of β-naphthol affects cadmium discharge and ionization at a cadmium amalgam dropping electrode. A kinetic model is developed in which adsorbed organic molecules can block the electrode surface, hinder ion penetration to the surface, alter the activation energy of ch…
This paper presents a photometric method for the quantitative determination of 3-nitrocarbazole in mixtures containing its 9-alkyl-substituted derivatives. The method is based on acid-type ionization of 3-nitrocarbazole in alkaline acetone, ethanol, and potassium hydroxide medium, producing an anion…
This paper examines the distribution law of anodic peak current measurements in amalgam polarography, where time dependent processes in solution and at the electrode can affect estimates from large repeated measurement sets. The authors propose testing small samples of 3 to 5 successive measurements…
This paper develops statistical criteria for detection sensitivity and resolving power in polarographic analysis, especially for anodic stripping and related methods under fluctuating interference. Building on hypothesis testing, it relaxes the assumption of equal variances for blank and signal-plus…
The paper investigates interactions in the Li, Cd, Hg system using amalgam accumulation polarography, with attention to whether lithium and cadmium form a sparingly soluble intermetallic compound in mercury. Experiments used a mercury film electrode in dimethylformamide electrolyte, electrode transf…
This study examines the electrodeposition and anodic dissolution of palladium bromide complexes in bromide electrolyte using film polarography with accumulation on a graphite electrode. On the basis of peak potential dependences on scan rate, electrolysis time, palladium concentration, and potassium…
This study examines the determination of trace arsenic in high-purity materials by film polarography with accumulation using a gold electrode in hydrochloric and tartaric acid media. The authors characterize the arsenic anodic response, finding a maximum at a pre-electrolysis potential of -0.5 V, li…
This study examines how preliminary moistening and temperature controlled plasticization affect the granulation of a window glass batch rich in soda and sodium sulfate. Using a production batch from the Anzhero-Sudzhensk Glass Plant, the authors varied water addition and batch temperature before lab…
This study compares the water-physical properties of slime fractions smaller than 0.030 mm in magnetite concentrates from the Sarbai deposit and from a Sokolov-Sarbai ore mixture. The authors separated slime fractions by washing, characterized particle-size distribution, specific surface, moisture c…
The study examines surface dissolution of finely dispersed materials used in iron ore pelletizing, where leached ions affect pH, electrical double layer structure, colloidal stability, and wet granulation behavior. Using aqueous dispersions with contact times from 6 to 1500 minutes, the authors asse…
This paper addresses prediction of the optimal moisture content of a dispersed charge before wet pelletizing, using iron ore concentrate with bentonite as an example. It argues that the required moisture can be represented as the sum of the maximum hygroscopic moisture of the framework grains and th…
This study examines conditions for the amalgam polarographic determination of metallic impurities in petroleum and petroleum products, using antimony, lead, and cadmium as model elements. Measurements were performed in water ethanol mixtures and in carbon tetrachloride ethanol, chloroform ethanol, a…
An experimental apparatus is described for investigating concentration limits of flame propagation in vapor and gas mixtures under varying initial temperature, pressure, flow, ultraviolet irradiation, ignition, and orientation conditions. The design combines a thick-walled combustion chamber with fl…
This paper examines amalgam polarography with accumulation for determining trace copper and lead in crude oils from Western Siberia, addressing limitations of slower and less accurate spectral methods. The authors study temperature effects on anodic peaks after matrix separation and in direct oil an…
This review surveys analytical methods for determining trace metal impurities in crude oils and petroleum products, a problem of practical importance for refining, catalyst performance, product quality, and studies of oil genesis. It summarizes photometric procedures for elements such as vanadium, c…
This paper develops a kinetic adsorption and electrochemical model for the ammonium amalgam effect in the APN method at constant solution temperature. It describes the growth of a mercury drop containing ammonia as the balance between formation of gas foam within the drop and diffusion of gas bubble…
This study examines how small oxide additions affect the sintering of high alumina ceramics, where achieving dense and homogeneous bodies is limited by the high temperature required for corundum densification. Technical alumina powder was ground, mixed with 0.012 to 1.2 mol% additions of MgO, SrO, Y…
This study examines the sintering of magnesium aluminate spinel ceramic of composition Sh-64, intended for titanium ceramic seals, with small additions of BeO, Y2O3, La2O3, ZrO2, and SrO. Specimens prepared from MgO and Al2O3 were pressed, fired at 1450°C with varying holding times, and evaluated by…
This paper examines the origin of hydrocarbons in oil and combustible natural gases, focusing on unresolved energy and reaction mechanisms in existing organic and inorganic hypotheses. It argues that electrical discharges and plasma processes in the Earth’s crust could transform mechanical, thermal,…
This paper examines the catalytic synthesis of gaseous hydrocarbons from carbon monoxide and water vapor over an iron copper catalyst, with attention to improving experimental efficiency through statistical planning. The authors used the simplex method of experiment planning to search for favorable …
This paper examines the kinetics of low molecular weight hydrocarbon synthesis, mainly ethylene and other C2 products, from carbon monoxide and water vapor over an iron copper catalyst. It applies a pulsed chromatographic microreactor method in which carbon monoxide serves as the carrier gas and wat…
This study examines phase changes in promoted iron catalysts used for carbon monoxide based synthesis during reduction, stabilization, and operation. Using X-ray structural analysis, the authors compare catalysts treated with carbon monoxide, hydrogen containing mixtures, and steam containing mixtur…
This paper develops a gas chromatographic procedure for analyzing fatty alcohols and fatty acids in complex synthesis products containing hydrocarbons and oxygenated compounds. The authors examine several liquid phases and additives for reducing peak tailing caused by hydrogen bonding, and identify …
