The article presents the results of the study of crystalline rocks of the poorly studied “Lyatskoe” site located in the west of Belarus. Their mineralogical, petrographic and geochemical features are determined. The main attention is paid to metasomatically altered formations. It is established that the “Lyatskoe” occurrence is metallogenically specialized in non-ferrous and rare metals and belongs to the sulfide-polymetallic vein-type ore formation.

The object of the study is the deposits of the subsalt terrigenous strata (Polotsk horizon and Lan superhorizon) of the Northern and Southern structural zones of the Pripyat trough. Based on the materials of geophysical studies of wells and laboratory core studies, the section of the Polotsk and Lan deposits was divided into lithotypes. In addition, the filtration-capacity properties and mineral composition of the lithotypes were analyzed based on core data.
The analysis of the results of complex geophysical (GIS) and mineralogical studies, as well as the determination of filtration-capacity properties, made it possible to establish the presence of 6 main lithotypes in the sediments of the Polotsk horizon and Lan superhorizon, differing primarily in their mineral composition.
Conclusions are drawn about the presence of reservoir rock packs in the Polotsk horizon and Lan superhorizon, which can be traced on a regional scale. The presence of various lithotypes has revealed the need to build mineral and petrophysical models of both individual deposits and the entire Pripyat trough at further stages of studying the above-mentioned deposits.

This article presents a schematic model of zoogenic sedimentary deposits common in the Voronezh Formation (Upper Frasnian, Upper Devonian) of the Prypiat Trough. Layered carbonate bodies, in which limestone intervals with abundant ramose Tabulate and fasciculate Rugose corals alternate with intervals devoid of coral remains, represent them. These structures are considered multilayered coral biostromes. Certain features of the deposits and the preservation of coral skeletons within them indicate an active sedimentation environment, particularly the influence of hydrodynamic and, likely, seismic factors. It is suggested that the multilayered biostromes may have been confined to active fault zones of the Voronezh time.

The relationship between the heat flow, the quantity and quality of oil in the Pripyat Trough and the geodynamics of its development is investigated. It has been established that the overwhelming amount of oil deposits and its high quality are confined to the Northern Structural District, within which the maximum heat flow is recorded in the area of the Pripyat paleorift. It is shown that the high heat flow in this area is caused, firstly, by increased convective heat and mass transfer in the crustal segment of the detachment (main extention fault) of the Pripyat Trough located here. Secondly, by conductive cooling of the effusive rocks of the cover and consolidated crust, containing a large volume of intrusive bodies of Late Devonian magmatism. A significant manifestation of magmatism in the northeastern part of the trough was due to active plume-tectonic processes generated by the head part of the West Dnieper rift pillow of the Dnieper graben during the period of maximum stretching of the lithosphere. Tectonically, this led to the formation of a deep Pripyat-Dnieper sedimentary paleostrait here. Pripyat riftogenesis developed due to plastic stretching of the lower crust with simultaneous thinning of its upper and middle crust as a result of brittle stretching. The strong resistance to stretching of the lower acid crust of the Korosten pluton, which underlies the Southern structural region, and the increased plasticity of the basic-ultrabasic lower crust of the Central and Northern structural regions caused the asymmetric development of the Pripyat rift with the formation of a tension neck, a listric fault system, and a translithospheric detachment.The upper mantle segment of the detachment zone and its branches in the crust of the Northern structural region in the form of listric faults served as the main channels of intensive heat and mass transfer and migration of mantle hydrocarbon-containing fluids into the sedimentary cover, favoring the formation of high heat flow and oil deposits here.

Void space (VS) is a key reservoir rock element associated with hydrocarbon (HC) content, and its structure determines all processes involved in hydrocarbon extraction from the subsurface. VS structure and its properties directly impact ultimate oil recovery during oil field development. Despite advances in VS technologies and methods, we remain far from fully understanding the structure and physical characteristics of this formation, nor from describing the processes of fluid movement within VS. A systems-based approach is used to address this problem, dividing geological objects into levels using the principle of complex systems. An alternative approach to studying VS and understanding the processes occurring within it is proposed. This approach is based on considering the reservoir void space as an emergent formation, an emergent structure of the rock, allowing VS to be characterized by its emergent properties.

The structure and characteristic features of residential ecological-geological systems of the territory of Belarus have been identified and analyzed for the first time. The main abiotic component of these systems is the urbolitotope, which forms the lithogenic basis of the ecosystem. It includes urbanized relief, technogenically altered and artificial soil massifs, as well as related engineering-geological processes and technogenic changes in geochemical and geophysical fields. The most important abiotic components of residential EGS are also the urbohydrotope, characterized by technogenically altered hydrogeological conditions, the urboedaphotope, consisting of various types of urbozems, and the urboatmotope, reflecting technogenic changes and pollution of the atmospheric air of cities. In addition, the abiotic components of the considered EGS include all elements of the urban infrastructure: residential and public buildings, various public utilities, urban public and private vehicles, road communications, etc. It has been established that the main sources of technogenic transformation of natural components are urban engineering facilities of various purposes associated with residential development of territories. The relationship between all abiotic and biotic components of residential EGS, which have specific characteristics formed under the influence of urbanization and anthropogenic factors, is shown. These aspects should be considered when systematizing, describing and analyzing the ecological functions of the lithosphere. The identified patterns and features of residential EGS of the territory of Belarus can be considered as common for similar EGS in Russia, which must be considered in engineering and environmental studies and engineering and environmental surveys.

The article presents the main approaches to the creation of geologic information resources, describes the concept, functionality and principles of user work with databases and cartographic materials available on the Web-portal of the remote base for digital geologic maps of the territory of the Republic of Belarus (https://gisproject.geologiya.by).

The article considers the structure of the Bobruisk-Klimovichy geophysical megaanomaly. The nature of the negative field values of the Bobruisk and Krasnapolle structures in west and east of the megaanomaly is shown not only as impersonal contour areas of magnetic objects on the periphery of the belt, but also as features of their geological structure. The negative field of the Bobruisk Structure is associated with granitoids of the Zhitkovichy Complex, to a lesser extent with non-magnetic formations of the Bobruisk Series and sandy deposits of the Riphean. The presence of a large Bobruisk-Boretsk Batholith of granitoids – an analogue of the Korosten Pluton is assumed. The Bobruisk Graben-Syncline has slightly different outlines than previously assumed. The negative field of the Krasnapolle Structure is to some extent associated with the graben-syncline on the surface of the crystalline basement, filled with sandstones of the Sherovichy Series of the Riphean.

The aim of the work is to study anomalous spatio-temporal variations of local geophysical fields in geodynamically active zones. The tasks to be solved: analysis of experience in studying anomalous dynamics of geophysical fields; development of a methodology for studying anomalous variations of local geophysical fields; identification of spatio-temporal anomalies of geophysical fields caused by exogeodynamic processes; identification of spatio-temporal anomalies of geophysical fields caused by modern geodynamic activity in fault zones. The methods used: electrical profiling and vertical electrical sounding using the resistance method, natural electric field method, gravimetry. The landslide development zone is characterized by anomalous dynamics of the natural electric field (oscillation amplitude of 10–30 mV) and apparent electrical resistance (oscillation amplitude up to 90 Ohm m), detected over several days. The zone of active suffusion in technogenic soils is diagnosed by anomalous dynamics of the natural electric field (oscillation amplitude of 5–15 mV), manifested in a time interval from several weeks to the first months. Active faults are manifested in anomalous variations of the gravitational field (oscillation amplitude of 0,1–0,3 mGal).

Significant differences in radon content in rainwater carried by winds of different directions have been identified, indicating the likely inaccuracy of estimates of radon emission rates from the Earth’s surface used in models of atmospheric transport of pollutants or greenhouse gases that use radon as a baseline tracer. A dependence of radon input to the Earth’s surface via liquid atmospheric precipitation (LIP) on the wind direction carrying rain clouds is demonstrated, demonstrating the need to consider this factor when constructing models. The presented research results illustrate the role of LIP in radon transport from the atmosphere to the Earth’s surface and provide a quantitative characterization of one of the real pathways for its runoff, which is not considered in current models of atmospheric pollutant transport.