Pub Date : 2022-01-01DOI: 10.17721/1728-2713.98.05
V. Ihnatyshyn, D. Malytskyy, T. Izhak, M. Ihnatyshyn, A. Ihnatyshyn
The article is devoted to the study of relations between the parameter variations of geophysical fields and the geodynamic state of the Transcarpathian Inner Trough. The research aims at studying the relations between the geodynamic state, observed meteorological parameters, and seismic phenomena in the Transcarpathian Inner Trough. Exploration target: seismotectonic processes in the region based on the results of monitoring geophysical fields. The scope of research includes the spatiotemporal distribution of local seismicity, modern lateral movements of the Earth's crust in the Oaș deep-seated fault area, precipitation parameter variations, water level in the Tysa River in 2019–2020. Research methodology presupposes the use of dynamic characteristics of modern lateral movements of the Earth's crust, spatiotemporal distribution of local earthquakes, observation of precipitation, as well as the comparison of heavy precipitation intervals with periods of seismic intensification. The research uses data obtained in the course of monitoring geophysical observations in the Transcarpathian Inner Trough area, especially at monitoring geophysical stations of the Seismicity Department of the Carpathian region of S.I. Subbotin Institute of Geophysics of the National Academy of Sciences of Ukraine. The data on the movements of the Earth's crust have been obtained at "Korolevo" strainmeter station. The results are significant to study the possible occurrence of local seismicity in the region and to settle the issue of seismically hazardous territories, as well as prediction of seismically hazardous phenomena in the future. The research studies the relation between the dynamic characteristics of modern lateral movements of the Earth's crust in the central part of the Transcarpathian Inner Trough and local seismicity in periods of intensive precipitation. The authors studied the relations between precipitation parameter variations and spatiotemporal distribution of local seismicity in 2019–2020. The analysis of spatiotemporal distribution of local seismicity and precipitation parameter variations in 2020 testifies to a high correlation of geophysical data series: increased amounts of precipitation are accompanied by an increased number of registered local earthquakes in the region; the hydrological aspect of seismotectonic processes in the Transcarpathian Inner Trough has been substantiated. In 2020 rock compression could be observed in the Oaș deep-seated fault area.
{"title":"MONITORING SEISMOTECTONIC PROCESSES IN THE TRANSCARPATHIAN INNER TROUGH BASED ON THE RESULTS OF COMPLEX GEOPHYSICAL OBSERVATIONS","authors":"V. Ihnatyshyn, D. Malytskyy, T. Izhak, M. Ihnatyshyn, A. Ihnatyshyn","doi":"10.17721/1728-2713.98.05","DOIUrl":"https://doi.org/10.17721/1728-2713.98.05","url":null,"abstract":"The article is devoted to the study of relations between the parameter variations of geophysical fields and the geodynamic state of the Transcarpathian Inner Trough. The research aims at studying the relations between the geodynamic state, observed meteorological parameters, and seismic phenomena in the Transcarpathian Inner Trough. Exploration target: seismotectonic processes in the region based on the results of monitoring geophysical fields. The scope of research includes the spatiotemporal distribution of local seismicity, modern lateral movements of the Earth's crust in the Oaș deep-seated fault area, precipitation parameter variations, water level in the Tysa River in 2019–2020. Research methodology presupposes the use of dynamic characteristics of modern lateral movements of the Earth's crust, spatiotemporal distribution of local earthquakes, observation of precipitation, as well as the comparison of heavy precipitation intervals with periods of seismic intensification. The research uses data obtained in the course of monitoring geophysical observations in the Transcarpathian Inner Trough area, especially at monitoring geophysical stations of the Seismicity Department of the Carpathian region of S.I. Subbotin Institute of Geophysics of the National Academy of Sciences of Ukraine. The data on the movements of the Earth's crust have been obtained at \"Korolevo\" strainmeter station. The results are significant to study the possible occurrence of local seismicity in the region and to settle the issue of seismically hazardous territories, as well as prediction of seismically hazardous phenomena in the future. The research studies the relation between the dynamic characteristics of modern lateral movements of the Earth's crust in the central part of the Transcarpathian Inner Trough and local seismicity in periods of intensive precipitation. The authors studied the relations between precipitation parameter variations and spatiotemporal distribution of local seismicity in 2019–2020. The analysis of spatiotemporal distribution of local seismicity and precipitation parameter variations in 2020 testifies to a high correlation of geophysical data series: increased amounts of precipitation are accompanied by an increased number of registered local earthquakes in the region; the hydrological aspect of seismotectonic processes in the Transcarpathian Inner Trough has been substantiated. In 2020 rock compression could be observed in the Oaș deep-seated fault area.","PeriodicalId":42798,"journal":{"name":"Visnyk of Taras Shevchenko National University of Kyiv-Geology","volume":"11 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86701997","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.17721/1728-2713.99.01
O. Ivanik, L. Tustanovska, К. Hadiatska
On the basis of a complex structural-morphometric analysis, methods of remote sensing of the Earth and spatial modeling, the evolution of different-scale morphostructures of the right bank of the Middle Dnieper region is analyzed. Based on the created structural-morphometric models, the features of tectogenesis and morphogenesis during the Neogene-Quaternary time were revealed. The regional and local structures are characterized and the amplitudes of the latest and modern crustal movements within them are determined. The complex relationship between endogenous and exogenous relief formation has been confirmed, and the role of glacial influence on relief formation has been characterized. The nature of the relationship between structural-tectonic processes and the development of dangerous geological processes has been determined. Geological and geomorphological field studies revealed the characteristic structural and tectonic features of block structures and their influence on individual factors of geomorphogenesis. Tectonic-geomorphological modeling, taking into account morphostructural analysis, illustrated the formation of relief of various types under conditions of variable rhythms of endogenous and exogenous processes.
{"title":"NEOTECTONICS AND MORPHOSTRUCTURAL FEATURES OF THE RELIEF OF THE RIGHT BANK OF THE MIDDLE DNIEPER REGION","authors":"O. Ivanik, L. Tustanovska, К. Hadiatska","doi":"10.17721/1728-2713.99.01","DOIUrl":"https://doi.org/10.17721/1728-2713.99.01","url":null,"abstract":"On the basis of a complex structural-morphometric analysis, methods of remote sensing of the Earth and spatial modeling, the evolution of different-scale morphostructures of the right bank of the Middle Dnieper region is analyzed. Based on the created structural-morphometric models, the features of tectogenesis and morphogenesis during the Neogene-Quaternary time were revealed. The regional and local structures are characterized and the amplitudes of the latest and modern crustal movements within them are determined. The complex relationship between endogenous and exogenous relief formation has been confirmed, and the role of glacial influence on relief formation has been characterized. The nature of the relationship between structural-tectonic processes and the development of dangerous geological processes has been determined. Geological and geomorphological field studies revealed the characteristic structural and tectonic features of block structures and their influence on individual factors of geomorphogenesis. Tectonic-geomorphological modeling, taking into account morphostructural analysis, illustrated the formation of relief of various types under conditions of variable rhythms of endogenous and exogenous processes.","PeriodicalId":42798,"journal":{"name":"Visnyk of Taras Shevchenko National University of Kyiv-Geology","volume":"23 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77017649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.17721/1728-2713.98.13
O. Azimov, I. Bagriy, V. Dubosarsky
Using the technology of structural, thermic, and atmogeochemical investigations a number of the studies within the Piatyhorivka area of the DnieperDonets Depression were performed. Among the studies there were the geostructural and morphostructural analyses, the structural interpretation of satellite data, field works on the emanation and thermometric surveys, laboratory chromatographic analyses of gas samples collected from the undersoil layer, integrated interpretation of atmogeochemical and remote sensing data, predicting oil-gas occurrence for the Piatyhorivka area. It is found that this area is located in the complicated structural and tectonic environment. Within its boundaries the relative "autonomic" northern and southern zones of the anomalous gas elimination are detected and five local plots of the difficult configuration in a plane projected for the further exploration of oil and gas deposits are identified.
{"title":"PREDICTING HYDROCARBON FIELDS USING THE COMPLEX OF ATMOGEOCHEMICAL AND REMOTE SENSING METHODS","authors":"O. Azimov, I. Bagriy, V. Dubosarsky","doi":"10.17721/1728-2713.98.13","DOIUrl":"https://doi.org/10.17721/1728-2713.98.13","url":null,"abstract":"Using the technology of structural, thermic, and atmogeochemical investigations a number of the studies within the Piatyhorivka area of the DnieperDonets Depression were performed. Among the studies there were the geostructural and morphostructural analyses, the structural interpretation of satellite data, field works on the emanation and thermometric surveys, laboratory chromatographic analyses of gas samples collected from the undersoil layer, integrated interpretation of atmogeochemical and remote sensing data, predicting oil-gas occurrence for the Piatyhorivka area. It is found that this area is located in the complicated structural and tectonic environment. Within its boundaries the relative \"autonomic\" northern and southern zones of the anomalous gas elimination are detected and five local plots of the difficult configuration in a plane projected for the further exploration of oil and gas deposits are identified.","PeriodicalId":42798,"journal":{"name":"Visnyk of Taras Shevchenko National University of Kyiv-Geology","volume":"45 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90758706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.17721/1728-2713.98.03
O. Hnylko, M. Bogdanova, T. Bozhuk
A description of the geological/geotouristic "weekend" excursion from Lviv to the nearest part of the Carpathians is presented with an overview of the exposed deposits of the Western European platform and the Skole Beskyds on the route Lviv - Mykolaiv - Verkhnye Synyovydne - Kamyanka - Lviv. A comprehensive outline of the geological position of the route area is given. The main geological objects and observation points (stops) along the route are described. The proposed route will allow you to get acquainted with the whole complex of the sediments on both the Tethys Paleocean margin and the ancient Paratethys Sea, to trace some indicators of the beginning of growth of the Carpathian Mountains, as well as to see the main oil-generating strata of the entire Carpathian arc. In observation points 1 and 2 near Mykolayiv, we observe Miocene shallow-water sandy formations of Paratethys. Point 3 is the Uhersk gas field located in the Carpathian Foredeep. In point 4 (Verkhnye Synyovydne) the lithofacies of the transition link between the Tethys and Paratetys deposits are exposed, and the Paratetys deposits here are expressed by the Menilite Formation (Oligocene) - the main oil-generating stratum of the Carpathians. In points 5 and 6 (Kamyanka Stream) we observe the deepest-water sedimentary formations of the Outer Carpathian segment of the Tethys – the products of catastrophic (including turbidite) currents and background (hemi)pelagic sedimentation.
{"title":"COMPLEX CHARACTERISTICS OF GEOLOGICAL/GEOTOURISTIC OBJECTS OF THE SKOLE BESKYDS AS INDICATORS OF TECTONIC-SEDIMENTARY PROCESSES IN THE OUTER CARPATHIANS","authors":"O. Hnylko, M. Bogdanova, T. Bozhuk","doi":"10.17721/1728-2713.98.03","DOIUrl":"https://doi.org/10.17721/1728-2713.98.03","url":null,"abstract":"A description of the geological/geotouristic \"weekend\" excursion from Lviv to the nearest part of the Carpathians is presented with an overview of the exposed deposits of the Western European platform and the Skole Beskyds on the route Lviv - Mykolaiv - Verkhnye Synyovydne - Kamyanka - Lviv. A comprehensive outline of the geological position of the route area is given. The main geological objects and observation points (stops) along the route are described. The proposed route will allow you to get acquainted with the whole complex of the sediments on both the Tethys Paleocean margin and the ancient Paratethys Sea, to trace some indicators of the beginning of growth of the Carpathian Mountains, as well as to see the main oil-generating strata of the entire Carpathian arc. In observation points 1 and 2 near Mykolayiv, we observe Miocene shallow-water sandy formations of Paratethys. Point 3 is the Uhersk gas field located in the Carpathian Foredeep. In point 4 (Verkhnye Synyovydne) the lithofacies of the transition link between the Tethys and Paratetys deposits are exposed, and the Paratetys deposits here are expressed by the Menilite Formation (Oligocene) - the main oil-generating stratum of the Carpathians. In points 5 and 6 (Kamyanka Stream) we observe the deepest-water sedimentary formations of the Outer Carpathian segment of the Tethys – the products of catastrophic (including turbidite) currents and background (hemi)pelagic sedimentation.","PeriodicalId":42798,"journal":{"name":"Visnyk of Taras Shevchenko National University of Kyiv-Geology","volume":"31 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87676579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.17721/1728-2713.99.05
V. Mykhailov, S. Vyzhva, S. Paiuk
A systematic analysis of the mineral resource base (MRB) of strategically important minerals for the Ukrainian economy is carried out. Four categories of strategic minerals from the point of view of their investment attractiveness are identified: traditional (iron, manganese, titanium, uranium, kaolin, sand molding, building stones, quartz raw materials, refractory clay); highly promising (rare earths, zirconium and hafnium, lithium, scandium, germanium, graphite, potassium salts, abrasive raw materials, piezooptical raw materials); promising (nickel, cobalt, chromium, aluminum, copper, tantalum and niobium, beryllium, gold, phosphorite, apatite, fluorspar, glauconite, limestones for sugar industry, flux limestones and dolomites, bentonite clays, feldspar, rough semi-precious stones); with unclear prospects (vanadium, lead and zinc, tungsten, molybdenum, platinum minerals, strontium, magnesium, arsenic, rubidium, cesium, barite, boron, dawsonite, bromine and iodine, mineral sorbents, high alumina raw materials, raw materials for mineral production of paints, fluorine, sulfur). Factors and criteria of investment attractiveness are determined and its expert assessment for deposits of metallic and industrial minerals and rocks of Ukraine is carried out, ways of creation of harmoniously developed balanced MRB of strategic minerals are shown.
{"title":"SYSTEM ANALYSIS OF THE MINERAL RAW MATERIAL BASE OF STRATEGIC MINERALS OF UKRAINE","authors":"V. Mykhailov, S. Vyzhva, S. Paiuk","doi":"10.17721/1728-2713.99.05","DOIUrl":"https://doi.org/10.17721/1728-2713.99.05","url":null,"abstract":"A systematic analysis of the mineral resource base (MRB) of strategically important minerals for the Ukrainian economy is carried out. Four categories of strategic minerals from the point of view of their investment attractiveness are identified: traditional (iron, manganese, titanium, uranium, kaolin, sand molding, building stones, quartz raw materials, refractory clay); highly promising (rare earths, zirconium and hafnium, lithium, scandium, germanium, graphite, potassium salts, abrasive raw materials, piezooptical raw materials); promising (nickel, cobalt, chromium, aluminum, copper, tantalum and niobium, beryllium, gold, phosphorite, apatite, fluorspar, glauconite, limestones for sugar industry, flux limestones and dolomites, bentonite clays, feldspar, rough semi-precious stones); with unclear prospects (vanadium, lead and zinc, tungsten, molybdenum, platinum minerals, strontium, magnesium, arsenic, rubidium, cesium, barite, boron, dawsonite, bromine and iodine, mineral sorbents, high alumina raw materials, raw materials for mineral production of paints, fluorine, sulfur). Factors and criteria of investment attractiveness are determined and its expert assessment for deposits of metallic and industrial minerals and rocks of Ukraine is carried out, ways of creation of harmoniously developed balanced MRB of strategic minerals are shown.","PeriodicalId":42798,"journal":{"name":"Visnyk of Taras Shevchenko National University of Kyiv-Geology","volume":"243 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89433343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.17721/1728-2713.96.12
D. Khrushchov, S. Chumachenko, V. Zatserkovnyi, P. Trofymenko, А. Splodytel
The purpose of the study is to elaborate framework of infogeological modeling of the military activity territories (using territorial objects in Ukraine) to provide informational support of research and works on the treatment of the geological environment of territories of military activity. The main methodological instrument of informational support of research and works on the treatment of the geological environment of territories of military activity is information modeling. Given the local level of military activity territories, the complex ecological and geological model serves as the primary methodological technique. Methods developed on this paradigm's principles aim to eliminate the consequences of military activity and restore the territories of the military conflicts. Ground research was developed using conceptual models, particularly checking main components of these models that aim at determining the indetermination. To identify the influence of the military activity sources, we used the Leopold Matrix and Sorensen Level Diagram, network diagram, method of the combined analysis of maps, and factor analysis. The evaluation of the spread of factors of military and technogenic load of chemical origin in the functional zones and subzones of the military polygon was carried out based on the complex approach to the ecological evaluation of the contamination of the territories of intensive military and technogenic load using the landscape profiling and imitating modeling taking into account geochemical and hydrometeorological conditions. The analysis of the soils, contaminated with military and technogenic origin substances in the places of functional subzones locations targeted fields of military polygon showed the indicators of concentration of some of the contaminating substances exceed norms 5-20 times. Field research in military polygon showed that contamination of its territory has zonal character and is grouped around local subzones of the military object where military preparation using armaments and military equipment is carried out, being the primary source of factors of military and technogenic load of the geological environment. Prospects for further development of this field lie in developing the integral theory of infogeological modeling of geological environment of military activity territories, oriented at the evaluation of different types of influences and threats.
{"title":"CONCEPTUAL FRAMEWORK FOR INFOGEOLOGICAL MODELING OF MILITARY ACTIVITY TERRITORIES","authors":"D. Khrushchov, S. Chumachenko, V. Zatserkovnyi, P. Trofymenko, А. Splodytel","doi":"10.17721/1728-2713.96.12","DOIUrl":"https://doi.org/10.17721/1728-2713.96.12","url":null,"abstract":"The purpose of the study is to elaborate framework of infogeological modeling of the military activity territories (using territorial objects in Ukraine) to provide informational support of research and works on the treatment of the geological environment of territories of military activity. The main methodological instrument of informational support of research and works on the treatment of the geological environment of territories of military activity is information modeling. Given the local level of military activity territories, the complex ecological and geological model serves as the primary methodological technique. Methods developed on this paradigm's principles aim to eliminate the consequences of military activity and restore the territories of the military conflicts. Ground research was developed using conceptual models, particularly checking main components of these models that aim at determining the indetermination. To identify the influence of the military activity sources, we used the Leopold Matrix and Sorensen Level Diagram, network diagram, method of the combined analysis of maps, and factor analysis. The evaluation of the spread of factors of military and technogenic load of chemical origin in the functional zones and subzones of the military polygon was carried out based on the complex approach to the ecological evaluation of the contamination of the territories of intensive military and technogenic load using the landscape profiling and imitating modeling taking into account geochemical and hydrometeorological conditions. The analysis of the soils, contaminated with military and technogenic origin substances in the places of functional subzones locations targeted fields of military polygon showed the indicators of concentration of some of the contaminating substances exceed norms 5-20 times. Field research in military polygon showed that contamination of its territory has zonal character and is grouped around local subzones of the military object where military preparation using armaments and military equipment is carried out, being the primary source of factors of military and technogenic load of the geological environment. Prospects for further development of this field lie in developing the integral theory of infogeological modeling of geological environment of military activity territories, oriented at the evaluation of different types of influences and threats.","PeriodicalId":42798,"journal":{"name":"Visnyk of Taras Shevchenko National University of Kyiv-Geology","volume":"1 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74166765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.17721/1728-2713.99.06
L. Stepaniuk, V. Zagnitko, T. Dovbush, N. Kovalenko, O. Zülzle, T. Yaskevych
Geochronological studies of granitoids from the Vilshansky mine of Middle Pobuzhzhya were carried out. Zircons and monacites from plagiogneiss, plagiogranites and migmatites of the Bug complex were analyzed. As a result, it was established that the rock association, which consists of migmatites with numerous xenolites of biotite gneisses, plagiogneises, occasionally graphite-containing gneisses, amphibolites and biotites (Khashchuvate-zavalivska suite of the Bug series) and intersected with the veins of aplito-pegmatoid granites, was formed as a result of a large-scale manifestation of graniteization processes, which began not later than 2.02 billion years ago and ended about 2.0 billion years ago. The age of metamorphic host rocks corresponds to the Archean values of uranium-lead dating.
{"title":"U-PB GEOCHRONOLOGY OF CRYSTALLINE ROCKS OF VILSHAN MINE (MIDDLE BUG, UKRAINIAN SHIELD)","authors":"L. Stepaniuk, V. Zagnitko, T. Dovbush, N. Kovalenko, O. Zülzle, T. Yaskevych","doi":"10.17721/1728-2713.99.06","DOIUrl":"https://doi.org/10.17721/1728-2713.99.06","url":null,"abstract":"Geochronological studies of granitoids from the Vilshansky mine of Middle Pobuzhzhya were carried out. Zircons and monacites from plagiogneiss, plagiogranites and migmatites of the Bug complex were analyzed. As a result, it was established that the rock association, which consists of migmatites with numerous xenolites of biotite gneisses, plagiogneises, occasionally graphite-containing gneisses, amphibolites and biotites (Khashchuvate-zavalivska suite of the Bug series) and intersected with the veins of aplito-pegmatoid granites, was formed as a result of a large-scale manifestation of graniteization processes, which began not later than 2.02 billion years ago and ended about 2.0 billion years ago. The age of metamorphic host rocks corresponds to the Archean values of uranium-lead dating.","PeriodicalId":42798,"journal":{"name":"Visnyk of Taras Shevchenko National University of Kyiv-Geology","volume":"12 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78552494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.17721/1728-2713.98.06
Е. Kuzmenko, V. Maksymchuk, I. Chepurnyi, S. Bagriy, О. Romaniuk, R. Kuderavets
The article is devoted to the results of geological and geophysical research conducted on the territory of the Dominican Church in Chortkiv, Ternopil region to determine the stress-strain state of building elements and search for voids and compaction zones in the subsurface soil layer. Research methods were methods of natural pulsed electromagnetic field of the Earth, vertical electric sounding, natural electric potentials, radio wave acoustic profiling, and georadar sounding. The reasons for the development of dangerous processes that negatively affect the condition of the church building are identified and analyzed. It is established that the causes of these deformations are the geological structure of the rocks on which the church is built, the slope of the terrain, natural soil moisture, heavy traffic and the creation of additional sources of water infiltration.
{"title":"DOMINICAN CHURCH IN CHORTKIV: GEOLOGICAL CONDITIONS, THE CRYPT GEOMETRIZATION, THE BUILDING STABILIZATION","authors":"Е. Kuzmenko, V. Maksymchuk, I. Chepurnyi, S. Bagriy, О. Romaniuk, R. Kuderavets","doi":"10.17721/1728-2713.98.06","DOIUrl":"https://doi.org/10.17721/1728-2713.98.06","url":null,"abstract":"The article is devoted to the results of geological and geophysical research conducted on the territory of the Dominican Church in Chortkiv, Ternopil region to determine the stress-strain state of building elements and search for voids and compaction zones in the subsurface soil layer. Research methods were methods of natural pulsed electromagnetic field of the Earth, vertical electric sounding, natural electric potentials, radio wave acoustic profiling, and georadar sounding. The reasons for the development of dangerous processes that negatively affect the condition of the church building are identified and analyzed. It is established that the causes of these deformations are the geological structure of the rocks on which the church is built, the slope of the terrain, natural soil moisture, heavy traffic and the creation of additional sources of water infiltration.","PeriodicalId":42798,"journal":{"name":"Visnyk of Taras Shevchenko National University of Kyiv-Geology","volume":"20 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89392237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.17721/1728-2713.97.03
K. Poliakovska, O. Ivanik, I. Annesley, N. Guest, A. Otsuki
Nowadays, rare earth elements (REEs), which belong to the group of rare metals, are considered worldwide to be strategic critical raw materials and are extremely important for the economic development of any country. Various methods and approaches are used for prospecting and exploration of deposits of these critical metals; among which the methods of 3D geological modeling are currently prioritized, which allow a comprehensive analysis of the structural features of potentially promising areas as well as individual deposits. One of the methods used for REE exploration is structural mapping combined with geological terrain analysis, including structural lineament analysis. The latter is considered an important geological tool for identifying the primary and secondary structural and tectonic features of our study areas of investigation. The objectives of the present research work are: 1) to identify structural lineaments within two studied areas – the Alces Lake area (Northern Saskatchewan, Canadian Shield) and the Western Azov region (Azov block of the Ukrainian Shield) using automated and manual approaches, 2) to compare the results obtained for both areas, and 3) to discuss interpretation/conclusions over the overall suitability of the method for the exploration purposes. In the current research, we conducted the extraction and geospatial analysis of linear features and their tectonic interpretation. During the modeling process, remote sensing and geostatistical methods were used to analyze topographic, geological and geophysical data. As a result, the main structural lineament trends for the two studied areas were identified and structural-tectonic criteria for the formation and localization of deposits of rare earth elements were determined/proposed.
{"title":"IDENTIFICATION AND ANALYSIS OF STRUCTURAL-TECTONIC FEATURES OF GEOLOGICAL TERRAINS USING LINEAMENT ANALYSIS: EXAMPLES OF GEOMODELLING FOR CANADIAN AND UKRAINIAN SHIELDS","authors":"K. Poliakovska, O. Ivanik, I. Annesley, N. Guest, A. Otsuki","doi":"10.17721/1728-2713.97.03","DOIUrl":"https://doi.org/10.17721/1728-2713.97.03","url":null,"abstract":"Nowadays, rare earth elements (REEs), which belong to the group of rare metals, are considered worldwide to be strategic critical raw materials and are extremely important for the economic development of any country. Various methods and approaches are used for prospecting and exploration of deposits of these critical metals; among which the methods of 3D geological modeling are currently prioritized, which allow a comprehensive analysis of the structural features of potentially promising areas as well as individual deposits. One of the methods used for REE exploration is structural mapping combined with geological terrain analysis, including structural lineament analysis. The latter is considered an important geological tool for identifying the primary and secondary structural and tectonic features of our study areas of investigation. The objectives of the present research work are: 1) to identify structural lineaments within two studied areas – the Alces Lake area (Northern Saskatchewan, Canadian Shield) and the Western Azov region (Azov block of the Ukrainian Shield) using automated and manual approaches, 2) to compare the results obtained for both areas, and 3) to discuss interpretation/conclusions over the overall suitability of the method for the exploration purposes. In the current research, we conducted the extraction and geospatial analysis of linear features and their tectonic interpretation. During the modeling process, remote sensing and geostatistical methods were used to analyze topographic, geological and geophysical data. As a result, the main structural lineament trends for the two studied areas were identified and structural-tectonic criteria for the formation and localization of deposits of rare earth elements were determined/proposed.","PeriodicalId":42798,"journal":{"name":"Visnyk of Taras Shevchenko National University of Kyiv-Geology","volume":"54 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91369311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.17721/1728-2713.98.09
I. Lomakin, E. Sarvirov, V. Kochelab, R. Medvedskij
The consistently high level of world gold prices against the background of depletion of reserves with easily extracted metal, lead to the need to introduce the industrial development of deposits with low-tech ores and sands. This requires improving the methodology of exploration and the use of efficient technologies for the enrichment and extraction of gold. The article is devoted to an important problem - the question of the real potential of placer gold in the south of Ukraine and its practical significance. An attempt is made on the basis of the analysis of the accumulated geological information to assess the quality of previously obtained results on loose gold of Ukraine. According to geological data, numerous manifestations of loose gold of various scales associated with sedimentary strata of Meso-Cenozoic sediments are widespread on the territory. It is noted that the geological study of placers in Ukraine was suspended during the lowest world gold prices - in the late 90's of last century - as a result of which many promising areas were left out. The authors refute the assertion that gold deposits on the Ukrainian Shield and in the Northern Black Sea Coast are of no industrial importance due to their low gold content. The negative assessment of placer gold content is due to the shortcomings of the methodology and test methods that were used in the work. The previously used exploratory model of "classic" gold placers does not correspond to the real properties of gold-bearing deposits in the sedimentary stratum. The predominant mass of gold of indigenous springs and placers of Ukraine belongs to small and thin classes of particle size distribution, and gold-bearing deposits have high clay content. In this regard, the deposition of gold occurred, as a rule, not in the subglacial part of the section of river valleys, but in the so-called "oblique" facies, which were almost not studied previously. The test used a mining method of gold extraction, which is not suitable for reliable determination of the gold content of small and fine grades. This led to a systematic underestimation of the gold content in the studied manifestations, as well as a significant reduction in the size of gold deposits. Therefore, a reassessment of previously obtained geological data is needed to determine the objective characteristics of the distribution and actual gold content in placers. Suggestions for further study of placers are given. Modern approaches to forecasting, studying and testing placers are considered, in particular, the use of data from remote sensing of the Earth, GIS-technologies and methods of neotectonic analysis for forecasting and searching for placers. The need to use separate determination of gold content depending on the particle size is emphasized.
{"title":"GOLD PLACERS IN THE SOUTH OF UKRAINE – CURRENT VIEWS AND PROSPECTS","authors":"I. Lomakin, E. Sarvirov, V. Kochelab, R. Medvedskij","doi":"10.17721/1728-2713.98.09","DOIUrl":"https://doi.org/10.17721/1728-2713.98.09","url":null,"abstract":"The consistently high level of world gold prices against the background of depletion of reserves with easily extracted metal, lead to the need to introduce the industrial development of deposits with low-tech ores and sands. This requires improving the methodology of exploration and the use of efficient technologies for the enrichment and extraction of gold. The article is devoted to an important problem - the question of the real potential of placer gold in the south of Ukraine and its practical significance. An attempt is made on the basis of the analysis of the accumulated geological information to assess the quality of previously obtained results on loose gold of Ukraine. According to geological data, numerous manifestations of loose gold of various scales associated with sedimentary strata of Meso-Cenozoic sediments are widespread on the territory. It is noted that the geological study of placers in Ukraine was suspended during the lowest world gold prices - in the late 90's of last century - as a result of which many promising areas were left out. The authors refute the assertion that gold deposits on the Ukrainian Shield and in the Northern Black Sea Coast are of no industrial importance due to their low gold content. The negative assessment of placer gold content is due to the shortcomings of the methodology and test methods that were used in the work. The previously used exploratory model of \"classic\" gold placers does not correspond to the real properties of gold-bearing deposits in the sedimentary stratum. The predominant mass of gold of indigenous springs and placers of Ukraine belongs to small and thin classes of particle size distribution, and gold-bearing deposits have high clay content. In this regard, the deposition of gold occurred, as a rule, not in the subglacial part of the section of river valleys, but in the so-called \"oblique\" facies, which were almost not studied previously. The test used a mining method of gold extraction, which is not suitable for reliable determination of the gold content of small and fine grades. This led to a systematic underestimation of the gold content in the studied manifestations, as well as a significant reduction in the size of gold deposits. Therefore, a reassessment of previously obtained geological data is needed to determine the objective characteristics of the distribution and actual gold content in placers. Suggestions for further study of placers are given. Modern approaches to forecasting, studying and testing placers are considered, in particular, the use of data from remote sensing of the Earth, GIS-technologies and methods of neotectonic analysis for forecasting and searching for placers. The need to use separate determination of gold content depending on the particle size is emphasized.","PeriodicalId":42798,"journal":{"name":"Visnyk of Taras Shevchenko National University of Kyiv-Geology","volume":"13 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87325958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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