This paper presents new data on conodonts from the Lower Devonian Lochkovian sediments recovered by Tomashovka 11 borehole drilled in the territory of Belarus, in the northwestern part of the Volyn Monocline. A number of conodont taxa previously unknown in the country have been identified: Zieglerodina mashkovae (Drygant), Z. formosa (Drygant), Z. remscheidensis (Ziegler), Pandorinellina camelfordensis (Farrell), Wurmiella excavata maxima (Drygant), Caudicriodus hadnagyi (Chatterton et Perry). The most important for stratigraphic purposes are Pandorinellina camelfordensis (Farrell), that is the marker of the Borshchovo Horizon, and Wurmiella excavata maxima (Drygant), that is among the index species of the Cypricriodus hesperius Zone. All identified conodont taxa from the assemblage prove the Early Lochkovian age of sedimentation for the studied part of the section.

The article presents the results of stratigraphic division of the Visean deposits of the Lower Carboniferous in sections of four wells drilled in the north of the Pripyat trough: Zelenkovichi 30-sl, Protasy 29-sl, Terekhovka 35-r and Sharpilovka 1-r, and also provides a correlation scheme for the identified stratigraphic units, which shows that completeness of the sections of the Visean deposits in the northern part of the Pripyat trough gradually increases from west to east.

The features of creating digital models of Quaternary deposits for the territory of the Gomel region using geographic information systems Golden Software Surfer and SAGA based on the database «Drilling knowledge of the Republic of Belarus» are considered. A set of algorithms for the analysis of digital models made it possible to obtain a number of statistical characteristics of Quaternary deposits, their distribution over the main tectonic structures, and their connection with faults penetrating into the cover of Quaternary deposits, which is partially manifested in the form of boundaries of tectonic structures. Several ring-shaped structures have been identified, coinciding with areas where there is a sharp increase in the thickness of Quaternary deposits, and zones of demolition and accumulation of material have been outlined. It has been established that the development of digital models of maps of Quaternary deposits allows you to quickly use the actual material and solve problems for the rational use of subsoil, identifying new areas of minerals, monitoring their condition.

The article contains a brief review of the history of palynological studies of the Belovezhian deposits (Pleistocene of Belarus). The evolution of views on their age and place in the stratigraphic scheme is characterized. The contribution of Belarusian palynologists to the study of the structure of sediments, vegetation and climate of the Belovezhian time is shown.

Based on the study of more than 200 borehole sections, spore-pollen data of about 60 sections, the results of field work and analysis of published materials, a map of the relief of Central Belarus in the Muravian interglacial was constructed. The identified types of relief are divided into two groups: formed in the Muravian time and inherited from the previous Late Pripyatian (Sozhian) glaciation. Generally, the paleorelief was similar to the modern one, but there were some differences that can be explained by the peculiarities of the morphogenesis of the PozerianHolocene stage, which led to decrease of height above mean sea level, increase of the depth, degree of dissection and a certain expand of square of a lacustrine-glacial lowlands (plains) and marginal glacial uplands.

On the basis of analysis of long-term data of regime observations of the state of groundwater in the area of the Mukhavetsky water intake and the Khotislavskoye deposit, published data on the features of the geological and hydrogeological conditions of the study areas, forecast of the hydrodynamic state of groundwater for objects with disturbed conditions, measures aimed at the rational use and protection of groundwater from depletion are developed.

The findings of the understudied metasomatic rocks investigation in the “Yelnya” site, located in the western part of the crystalline basement of Belarus, are presented. The peculiarities of their chemistry and the distribution of small elements patterns have been revealed. The conditions of the original rocks transformation have been determined. It is concluded that the altered rocks of this area belong to the class of hydrothermal-metasomatic rocks with the leading role of infiltration and accompanying diffusion metasomatism. It was found that metasomatites are potentially ore-bearing for non-ferrous and rare metals. The Yelnya occurrence belongs to a complex sulfidepolymetallic ore occurrence of the vein type.

Detailed geochemical characteristic is given and metallogenic specialization of the Early Proterozoic granitoids of western Belarus is determined. It has been established that the rocks are potentially ore-bearing for copper, molybdenum and a number of rare earth elements. The Bershtovsky massif of the Mostovsky complex is considered as the most promising object for identifying industrially significant occurrences of ore minerals.

The isotope-geochemical study of deposits containing carbonate from the Upper Emsian Vitebsk and Lower Eifelian Adrov horizons in Belarus has been carried out in geological sections of five boreholes. These boreholes are the North-Polotsk (southeast of the Latvian Saddle), Bykhov (the conjugation zone of the Orsha Depression and Zhlobin Saddle), Korma (Zhlobin Saddle), Privolje (the North Shoulder of the Pripyat Trough) and GGK-1 (southwestern edge of the Voronezh Anteclise).
The δ13C values typical for marine sedimentary carbonates and δ18О values characteristic of Emsian and Eifelian carbonates prevail in the Vitebsk and Adrov horizon deposits of the North-Polotsk, Bykhov and Korma sections. However, there are isotopic signals testifying about the increase of land water role during the basin shallowing (negative δ13C excursions), evaporitization (δ18О increase) and periodic changes of sea water temperature due to sea depth fluctuations (negative or positive δ18О shifts).
Synchronous negative δ13C and δ18О excursions trace intervals of geological sections which were affected by infiltration catagenesis in the Vitebsk horizon Obol layers and Adrov horizon of the GGK-1 section as well as in the Vitebsk horizon Lepel layers of the Korma section.
The unusual combination of normal sea δ13C values and very low δ18О ones in lower parts of the Vitebsk and Adrov horizons in the Privolje section situated in the area of the highest in Belarus heat flow density and on the flank of paleovolcano is, presumably, connected with new formation of catagenetic carbonates in the environment of buried sea water or brine which were not be significantly affected by infiltration, and at elevated (or high) temperature.

The article presents the results of geological and geophysical studies of the Belarusian Antarctic Expedition (BAE) 14 and 15, carried out during the field work in 2021–2023. The previous geological and geophysical works carried out during the implementation of the BAE-1–BAE-10 projects carried out general geological and geophysical studies in accessible areas of the Vechernegorskaya area. The analyzed present stage, which has been carried out in recent years, has been expanded by a set of studies, including radiometric survey, kappametric studies, heavy mineral concentrate sampling of clastic rocks, according to which maps of radiometric surveys, heavy mineral concentrate sampling, and kappametric surveys have been built. According to the results of the analysis of the magnetic and non-magnetic fractions of samples from the heavy mineral concentrate survey, diverse mineral associations were established. According to the macro- and microscopic analysis of thin sections, the mineral composition of the rocks was determined. Studies of this period of study of the Vechernegorskaya area will expand the range of geological and geophysical studies.

Alluvial salt plate is formed on waste sludge storage as a basement for solid halite waste storage. In the process of its construction, alluvial salt plate requires constant condition monitoring, including geophysical monitoring. The article presents the results of the electrometric survey conducted at the salt plate construction site. Several examples of interpretation of these materials are given.

The article is devoted to the features of the lithofacies conditions of the Devonian subsalt terrigenous deposits of the Polotsk horizon and the Lan’ superhorizon of the Rechitsa oil field. Based on the analysis of the available description of core material, petrographic thin sections, as well as facial zoning, a lithofacies analysis was performed, the results of which showed that the process of sedimentation of terrigenous deposits occurred under conditions of an intraplatform shallow sea with the strongest influence of water flows from the surrounding land and was controlled mainly by the intensity and direction of synsedimentary tectonic movements and the dissected topography of the bottom of the sedimentation basin. The conceptual model of a tidal delta was adopted as the highest priority model of sedimentation within the Rechitsa field, whereas the barrier coast model was adopted for the lower part of the Lan’ superhorizon section.

A review of world experience in the injection of displacing agents into low-permeability unconventional reservoirs in order to increase their oil recovery is presented. The results of the first field experiment on the water injection into reservoirs of such tipe of the inter-salt strata of the Pripyat trough are reflected. Schemes and modes of injection of displacing agents are presented, prospects for increasing oil recovery from the Yelets-Petrikov productive deposits of the Rechitsa oil field are outlined and organizing a reservoir pressure maintenance system.

The article presents the results of work on creating an educational collection of minerals and rocks in the geological museum of the State Educational Institution «Gymnasium No. 5 of Minsk named after the heroes of the meeting on the Elbe» in order to popularize geological knowledge among teachers and students, as well as to develop a scientific worldview and respectful attitude to geological heritage.