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 estimates the thermal metamorphism of gold-bearing quartz veins caused by post-ore hyperbasite dikes in the Sarala ore field. A scaled thermophysical model of a heated dike intruding a quartz plate was used to relate vein temperature to dike emplacement temperature, thickness, distance fr…
This paper examines prospecting methods for gold ore deposits in northeastern Transbaikalia, where abundant placer gold contrasts with relatively few identified primary deposits. It relates placer characteristics, fault-controlled belts of Late Jurassic subvolcanic and hypabyssal intrusions, and hyd…
This study examines the distribution of gold and trace elements among major ore minerals of the Staryi Berikul gold deposit in relation to five stages of vein formation. Using neutron activation, spectrochemical, and approximate quantitative spectral analyses of sulfides, quartz, and carbonates from…
This paper examines the distribution of gold and associated indicator elements in gold-ore fields of the northern Kuznetsk Alatau, focusing on primary ores, oxidation zones, unconsolidated cover, soils, and waters. Using radioactivation and spectrochemical analyses from several vein, skarn, and stoc…
This paper examines pediments and their relationship to gold-bearing placer deposits in the Martayga region of the Altai-Sayan folded area. Using geomorphological observations, it argues that many landforms previously interpreted as ancient or abandoned valleys are instead elements of denudational p…
This paper evaluates the placer gold potential of pre-Quaternary ancient valley deposits in the Mariinsk taiga of the Kuznetsk Alatau, where most placers of the modern drainage network had already been explored or mined. Using geomorphological interpretation, stratigraphic descriptions of alluvial s…
This paper examines the distribution of gold-bearing placers in Mountain Shoria and evaluates how placer location, gold morphology, fineness, and associated minerals can be used to infer primary gold sources. Drawing on heavy-mineral sampling, exploration and mining data, and field observations from…
This paper evaluates the gold potential of the Kolyvan-Tomsk folded zone in relation to its structural geology, intrusive history, and known ore occurrences. Using regional hydrogeochemical observations and gold analyses of samples from polymetallic and quartz-vein occurrences, with detailed mineral…
This paper examines the structural controls on gold mineralization at the Komsomolskoye deposit, located within a gabbro-diorite stock of the Martayginsky complex cutting Cambrian carbonate and volcanogenic rocks. It analyzes the intrusion, xenolith distribution, acidic and basic dike systems, vein …
This paper examines the structural role of melanocratic dikes, especially spessartite dikes, in controlling gold mineralization at the Central gold-ore deposit in the northern Kuznetsk Alatau. Using observations from mine workings, the author describes the occurrence, composition, deformation, and c…
This paper examines the structural and temporal relationships between dike formations and gold-bearing quartz veins in the Berikul ore field. On the basis of field observations of crosscutting relations, hydrothermal alteration, fracture morphology, and selected physico-mechanical properties of host…
This paper reports newly identified gold mineralization in listvenites associated with a hyperbasite massif in the Mount Zelenaya area of the northern Kuznetsk Alatau. On the basis of petrographic observations, metasomatic zonation, mineral associations, and chemical data for related leucocratic gra…
This paper describes the geology and metal content of the Lebed skarn zone in southwestern Gornaya Shoria, with emphasis on the northern sector containing the Lebed gold ore deposit. Based on mapping, exploration data, and mineralogical observations, it characterizes the zone’s subdivision into sout…
This paper examines the formation of quartz veins in the Znamenitinsky ore field on the eastern slope of the Kuznetsk Alatau, focusing on the relation between vein morphology, fracturing, hydrothermal alteration, and gold-sulfide mineralization. On the basis of field and mine observations, it argues…
This paper examines contact-metasomatic and hydrothermal formations of the Kommunar gold ore field on the eastern slope of the Kuznetsk Alatau, focusing on their genesis, localization, relation to intrusive magmatism, and significance for gold prospecting. On the basis of geological, mineralogical, …
This paper analyzes the three-dimensional morphology and genesis of the Olkhovskoye gold ore field in relation to the Shindinsky intrusive massif, surrounding folded carbonate and effusive-sedimentary rocks, and associated fault and dike systems. Using morphogenetic interpretation of ore zones at su…
This paper examines the structural controls on sulfide and quartz-sulfide mineralization in the Olkhovskoye ore field. It argues that ore localization is governed primarily by the geometry and renewal history of fault and fissure systems associated with a regional anticlinal structure, a synclinal f…
This paper examines how host-rock composition and properties influence the localization, morphology, and mineral composition of gold mineralization in deposits of the Olkhovsko-Chibizhek district of the Eastern Sayan. Based on observations from several deposits, it distinguishes ore types developed …
This paper examines how lithology influences the distribution of gold ore occurrences in the central Lena Province. Using statistical processing of assay data from rocks without visible hydrothermal alteration, it compares gold occurrence across terrigenous, terrigenous-carbonate, and carbonate rock…
This paper examines gold mineralization in the Yenisei Ridge, a major Soviet gold-bearing province historically dominated by placer production, with emphasis on primary ore sources and their spatial distribution. Drawing on geological observations, sampling data, mineralogical descriptions, and comp…
This paper examines the genesis of the Lyubavinskoye gold deposit in southern Chita Oblast, where quartz gold veins are localized in a sublatitudinal fracture zone associated with granitoid stocks and dike complexes. On the basis of mineral associations, textures, paragenetic relations, gold morphol…
This article synthesizes prospecting and exploration data on primary gold deposits in a district of the southeastern Eastern Sayan, focusing on their geological setting, structural controls, and inferred genesis. It relates the deposits to the contact zone of a Paleozoic granitic intrusive complex w…
This paper analyzes the structural controls of a gold-quartz vein deposit in the Amur Region, located near the junction of major folded systems and basement blocks. Using geological mapping, mine-level structural observations, fracture orientation data, and petrostructural evidence, the authors rela…
This paper addresses the lack of a consistent geological concept for ancient metal-bearing conglomerates, whose mineralization has been variously interpreted as buried placer concentration or as related to later metamorphic processes. Drawing on comparative data from foreign deposits, it proposes a …
This paper examines regularities in the distribution of gold-bearing territories in the Urals and their relationship to regional ore-controlling structures. Using comparative structural analysis of geological maps, geophysical data, and known magmatogenic deposits, it identifies clustered mineraliza…
The paper studies the asymptotic optimality of cubature formulas with a boundary layer regular in the sense of S. L. Sobolev in Sobolev-type spaces, focusing on the case of the weight function given by a power of the Fourier variable. It develops properties of discrete functions associated with a re…
This paper compares zoning patterns of gold mineralization in selected districts of the Kuznetsk Alatau and Central Transbaikalia to identify features that may be common across regions of different geological age. Using structural, magmatic, and ore association relationships, it argues that gold dep…
This paper examines hypogene zoning of gold mineralization in the Precambrian formations of the Patom Highlands, especially the Lena gold-bearing region. On the basis of prospecting and exploration observations, it distinguishes regional zoning related to metamorphic facies, zoning within ore fields…
This paper examines how deep fault zones along the southern margin of the Siberian Platform influenced the regional distribution of Precambrian gold and associated endogenous mineralization in the Sayan Baikal folded region. It argues from observed metamorphic facies zonation, ore associations, geop…
This paper examines the Mesozoic Amanan-Amudzhikan volcano-plutonic complex of the Nerchinsk-Kuenga structural zone in Eastern Transbaikalia, with emphasis on its origin and relation to gold mineralization. On the basis of field relations, petrography, mineralogical variability, structural textures,…
This paper examines the relative roles of basaltoid and granitoid magmatism in gold mineralization, using neutron activation data on average gold contents in igneous rocks from the Altai Sayan folded region. It compares gold concentrations in intrusive and effusive equivalents of basic and granitoid…
This paper examines the relationship between gold mineralization, intermediate intrusive rocks, and postmagmatic metasomatic processes in the South Primorye and Selemdzha gold-bearing zones of the Pacific ore belt. Using spectrochemical determinations checked in part by radioactivation analysis, the…
This paper examines the relationship between gold mineralization and magmatism in folded regions, distinguishing basaltoid and granitoid series of gold-ore formations. Using examples from Rudny Altai, the Urals, Kazakhstan, and other districts, the authors compare ore associations, magmatic sources,…
This paper examines the genetic association of gold mineralization with major groups of igneous rocks, using evidence chiefly from the Altai Sayan mountain region and comparisons with other ore provinces. It reviews ultrabasic, basic, intermediate, granitoid, alkaline, and dike rocks, distinguishing…
This paper surveys the contribution of scientists from Tomsk higher educational institutions to the study of Siberia’s gold-bearing regions from the late nineteenth century through the Soviet period. It traces the shift from sporadic geological observations to systematic research on gold deposits, e…
This opening address introduces a geological conference on the study of Siberian gold deposits held for the seventieth anniversary of Tomsk Polytechnic Institute. It situates the meeting within Soviet economic planning priorities for Siberia and the Far East, reviews the institute’s historical role …
The note studies structural descriptions of solution sets for systems of equations with one unknown in a free group, building on earlier work of Lyndon and the author on finite parametric representations. It proves that any soluble such system has its solution set representable by finitely many word…
The paper studies a pursuit or meeting problem for two controlled linear motions with bounded controls, where one control must be formed from the observed states rather than from the opponent’s realized control. It proposes a regularization based on replacing exact terminal coincidence in selected c…
This note studies simple graded Lie algebras over the complex numbers whose negative part is generated by the degree minus one component. It constructs a universal infinite-dimensional graded Lie algebra using a free Lie algebra in negative degrees and multilinear operator spaces in nonnegative degr…
The paper analyzes spectral lines whose profiles are represented by a convolution of Gaussian and Lorentzian distributions, with particular attention to how the component widths combine in experimentally relevant line shapes. Using the Fourier transform of the profile as a correlation function and c…
The paper studies analytic properties of the resolvent kernel for a self-adjoint fourth-order ordinary differential operator on the half-line with a compactly supported smooth real potential. It relates this problem in L2(0, infinity) to a parameter-dependent boundary-value problem on a finite inter…
This paper studies linear differential systems with bounded uniformly continuous recurrent coefficients and asks when their probable spectrum is stable. It introduces absolute regularity, states that almost every system in the associated dynamical hull has this property, and derives a stability crit…
The paper derives a hydromagnetic stability condition for an arbitrary equilibrium plasma configuration in the immediate neighborhood of the magnetic axis. Starting from a general stability criterion, it expands the magnetic field, scalar potential, magnetic surfaces, and coordinate transformations …
This paper examines whether the observed surface brightness and isophote shapes in cometary comae can be explained by photodissociation and velocity dispersion of C2 molecules, with particular attention to comet 1959k. Using photometric measurements of C2 emission, estimates of observational error, …
The paper studies algorithmic and definability properties of algebras of one-place primitive recursive, general recursive, and partial recursive functions under addition, multiplication, and inverse-type operations. It proves a general nonrecursiveness criterion for subsets of these function classes…
The paper proposes a method for accelerating two-sided iterative approximations to fixed points of operators in partially ordered Banach spaces with cones. For linear positive operators of the form x equals Ax plus f, it constructs smaller invariant cone segments by replacing each pair of lower and …
This paper examines whether the component-field construction of infinite multiplets can be reformulated in terms of a single large field, using self-conjugate representations of the symmetry group SL(2,C). The authors construct expansions in momentum-dependent spinor bases, derive commutation relati…
This note studies harmonic analysis on the hyperboloid associated with a real pseudo-orthogonal group, where noncompact stabilizers make the decomposition of the natural unitary representation in L2 difficult. Using representations connected with the isotropic cone and invariant generalized spherica…
The paper studies cubature formulas for weighted integration over an n-dimensional domain that are exact for all polynomials of even degree 2l and use the minimal possible number of nodes. It reformulates the exactness conditions as a matrix equation involving the node matrix, weights, and Gram matr…
The paper formulates an optimization problem for synthesizing the current distribution of a linear antenna whose realizable radiation pattern best approximates a prescribed, generally nonrealizable pattern. The approximation is measured in the mean-square sense, while constraints on the mean-square …
