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Geoinformatics
- Conference date: May 11-14, 2021
- Location: Online
- Published: 11 May 2021
141 - 154 of 154 results
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Magnetic model of the White Sea region crust
Authors L. Bakunovich, M. Nilov, N. Sharov and B. BelashevSummaryThe deep crustal structure of the White Sea region and the surrounding areas has been well described in the framework of individual case studies. There are also a number of models for the geological structure available. We propose a uniform assessment of magnetic sourcies responsible for the long wavelength magnetic features. Within the considered area, the Precambrian formations of the Fennoscandian Shield and the Russian Plate overlain by a sedimentary cover are represented. Large geological domains are separated by regional faults and suture zones. The study is based on a 1: 1,000,000 scale aeromagnetic field map.
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Ways of information technologies usage in the interests of mineral resources development of deep-water zones of the International Seabed Area
Authors O. A. Shchyptsov and O. I. LiubaretsSummaryThere are considered the latest digital resources of the International Seabed Authority (ISA), which should be used for:
- carrying out research in the International Seabed Area, particularly in the Clarion-Clipperton Zone, including modern information technology usage;
- formation of the marine geological and geophysical module of the Oceanographic Data Bank of the National Academy of Sciences of Ukraine with the aim to exchange oceanographic data with the ISA DeepData database, as well as to develop the National Geospatial Data Infrastructure and form a modern digital oceanographic data industry in Ukraine.
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Local development eco-projects and their role in small rivers restoration in Ukraine.
Authors S. Bortnyk, K. Kulyk, M. Lavruk, T. Lavruk, O. Pidkova, O. Romanova, I. Sarakhman and L. TymuliakSummaryThe article highlights the problem of restoration of small rivers of Ukraine through the implementation of local development ecoprojects. The main task of such eco-projects is scientifically substantiated functional zoning of river basins, organization of water resources management system within territorial communities, protection of coastal zones, spatial planning of landscape and recreational areas adjacent to water bodies, creation of comfortable conditions for recreation, environmental education and culture, which in general will help to improve the environmental condition of rivers. An innovative approach to the restoration of small rivers using integrated databases is considered on the example of an eco-project to restore the Kolomyjka River, a tributary of the Prut River, proposed by the authors for the Kolomyia Territorial Community of Ivano-Frankivsk region.
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Neural network modeling in the problem of localizing the sources of seismic events in the territory of Ukraine in order to assess the seismic risk zones of industrialized territories.
Authors O. Herasymenko, O. Kendzera, L. Shumlianska, A. Ganiev, K. Petrenko and N. OstapchukSummaryIn order to identify areas of seismic risk in industrial regions of Ukraine, the authors used the possibilities of neural network modeling in the problem of localizing earthquake sources, registered, according to monitoring data 2007–2020, by a network of seismic stations IGF NASU Odessa, Skvira, Poltava, Nikolaev. Local hodographs of P-, S - earthquake waves of the Ukrainian shield and the Dnieper-Donetsk depression in the range of magnitudes 2.7–4.8 were constructed. Modeling localization problems in the operational mode allows to construct with sufficient accuracy the sources of seismic events in the territory of Ukraine, which is confirmed by the examination of the results obtained by global travel time curves D-B. Examples of localization of earthquakes of 2011, 2013 with magnitudes 3.9 and 4.6 in the Krivoy Rog basin area provide additional opportunities for analyzing the structural features of the lithosphere, and in the future – real-time evaluation of the characteristics of the seismic process in the task of its prevention.
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Conjugated effects between surface- and groundwater mineralization within the drainage zone of Dombrovsky quarry
Authors Y. Malkova, V. Dolin, Y. Yakovlev, E. Kuzmenko and O. ShcherbakSummaryThe hydrogeofiltration structure and water balance of the Dombrovsky quarry depression cone were analyzed. The radius of the quarry depression was about 1.5 km. Environmental threats are following the modern transformation of the quarry from a drainage system into a source of aquifer feeding by highly mineralized water. The assessment of gravel and pebble drinking water horizon pollution and mineralization of Limnitsa river, which is a regional local drainage, is carried out. The value of salts annually transported into the gravel and pebble aquifer is assessed to 648 kt. During nearest 2.5 years the front of highly mineralized groundwater will discharge to Limnitsa river that provide the growth of surface water mineralization to 0,81 g/l. The liquid body of Dombrovsky quarry is came to quasi-equilibrium water balance and hydrochemical state with groundwater aquifer that determines the additional threat of drinking water source pollution.
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Principles of information support of research in applied hydrogeology
Authors O. Shevchenko, D. Khrushchov, O. Azimov and V. PerekheidaSummaryThe theoretical basis of information support for R&D on underground water management, i. e. use and protection (ISR&DUWM) is based uponInfogeological image of underground waters as subordinate system (subsystem) of geoenwironment (hydrogeosphere). From the methodological point of view it is logically to consider underground waters as a fluid constituent of predominantly solid phase system of the lithosphere. The methods apparat of ISR&DUWM is also infogeological modeling based on the principles of target structuring of geological environment on the basis of traditional methods of formational analysis taking into account hydrogeological (hydrodynamic and hydrochemical) components. The content of theoretic developments is illustrated by figures, graphs and tables. Prospects for the introducing of geological environment geoframe organization principles into infogeological modeling are in development. Basing upon these methodological and methods principles the prospects and requirements related with the problem of efficient use and protection of underground waters resources are presented.
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Experiments with anisotropies transformations of Andreyev and Klushin (on the example of the gravity and magnetic fields of the southeast Ukrainian Carpathians)
Authors S. G. Anikeyev, S. E. Rozlovska and S. V. GrechukhSummaryProspects for the discovery of new oil and gas fields, in the Carpathian region, depend on the development of methods for tracing the contours of tectonic zones, deep faults, as well as thrusts and other large linear structures of the sedimentary cover. In gravity and magnetic fields, these extended objects are displayed in the form of elongated anomalies, zones of high gradients, as well as a sharp change of the morphology in the fields. However, these features of the fields are often obscured by the regional background or by the influence of the complex structure of the sedimentary cover and basement surface. The paper proposes versions of anisotropic transformations, which are based on the ideas of B. A. Andreev and I. G. Klushin, for identifying and tracing significantly elongated anomalies, gradients, or zones of changes in the morphology of gravimagnetic fields. Examples of experimental application of these transformations are also given.
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Methodology of infogeological modeling for oil and gas fields forecasting
Authors V. Ye. Goncharov, V. V. Makogon and D. P. KhrushchovSummaryThe article presents a generalized presentation of the theoretical foundations of information support for research and work on forecasting oil and gas fields of various geological and genetic types. The main working tool of such support is targeted multi-scale information modeling of promising geological objects, based on the general theoretical scheme of the predictive-paleoreconstructive retrospective-static model with the introduction of the concept of formation-material oil and gas accumulation system. It includes cognitive and functional components: primary sources of hydrocarbon components, ways and methods of their transportation, and objects for localization of naphthides. Such a methodological apparatus provides a solution to two predictive and diagnostic tasks: forecasting traps and assessing the potential for their implementation, that is, forecasting deposits. The proposed apparatus is multi-scale, allowing forecasting at the zonal (groups of deposits), local (deposits) and sublocal (deposits) levels. The effectiveness of the presented methodological and methodological developments is demonstrated by examples of targeted modeling of geological objects. Two groups of infogeological models of . promising objects have been developed: the series of Tournaisian Visean productive horizons –areas and the same of Talalayevka area. Several specific recommendations have been realized.
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Tectonic structure and oil and gas potential of the Kolomyia and Slobidko-Lisna paleoledges according to the gravity and magnetic data
Authors S. G. Anikeyev, V. Yu. Maksymchuk, R. S. Kuderavets and N. B. PyrizhokSummaryThe Kolomyia paleovalley is located in the Southeastern part of the Bilche-Volytsia zone of the Precarpathian Depression. On the slopes of the Pre-Miocene surface of the paleoledges surrounding the paleovalley, overlay the terrigenous deposits of the upper Baden with good reservoir properties. Despite the considerable study of the region of the paleovalley by seismic survey methods, only a few insignificant oil and gas deposits were discovered here. Among the reasons there are complex seismogeological conditions and insufficient application of a complex of “light” geophysical methods.
The article presents an analysis of gravity-magnetic materials for the Slobidko-Llisna-Kolomyia area, adjacent from the South-West to the central part of the Kolomyia paleovalley floor. As a result of the research, it was shown that the geometry of the slopes of the paleoledges, as well as the features of tectonics, are clearly reflected in the anomalies of the gravity and magnetic fields. This makes it possible to predict promising areas on the slopes of the Slobidko-Lisna and Kolomyia paleoledges for oil and gas prospecting.
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Technique of paleotectonic backstripping and assessment of hydrocarbon potential in anticline traps (South Caspian Basin)
Authors G. N. Gahramanov, Kh. Z. Mukhtarova and S. ShpyrkoSummaryWe present an outline of a backstripping technique used for the paleotectonic reconstruction, in particular, to trace back the evolution of hydrocarbon bearing structures in the major oil and gas fields worldwide. As case study we consider three anticline structures located offshore in the South Caspian Basin (SCB) and forming a part of a lineated tectonic structure with SE trending. The study goes in parallel with similar studies on other anticline structures in the area with the results reported elsewhere. The content of organic matter in a sedimentary basin depends on its formation conditions, including rates of sedimentation and rising of anticline structures (traps for hydrocarbons). Stratigraphy and lithology of a structure can be derived in cross-sections via seismic transects. These cross-sections point not only at the current state of the structure, but give hints to its past development, that is allow to reconstruct its tectonic history under a number of plausible assumptions as to the geological development. As a second step, paleoprofiles are reconstructed which should correspond to the cross section of the same structure in the past. In particular, time moments corresponding to the end of formation of Upper and Lower Productive Series of Pliocene are important marks for SCB. From these, the rates of fold development can be derived, and the sedimentation rates for different geological epochs assessed. The sedimentation rates point at the hydrocarbon potential of the formation rocks. In this communication, we perform paleoanalysis of Aran-Deniz, Dashli and Sabail anticline structures and oil deposits in the Caspian Sea. The reconstructed sedimentation rates vary from a few tens of meters per million years to 2 km/MA and agree well with the actual results from well logging and exploration practices on these fields.
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The use of data on the material composition of sediments during forecasting works of titanium root and placer deposits
Authors O. Komliev, S. Bortnyk, O. Remezova, R. Spytsia, S. Vasylenko and S. ZhylkinSummaryThis work is devoted to using the coefficients of granulometric and material composition of sediments that contain productive bodies from 16 placer and promising areas of the Irshansky placer field the Ukrainian sub-province of titanium and titanium-zirconium placer deposits (USTTCPD). There are show the efficiency of using these methods to solve various problems that arise during forecasting and exploration of titanium deposits of the Irshansky placer field on 3 tables. These are: stratigraphical (age) correlations (regional, local); genetic diagnosis of continental and marine sediments; reconstruction of facial conditions and paleogeographic elements; assessment of the intensity of hypergenic processes. To solve these problems, various quantitative coefficients were used: mineralogical, granulometric, granulometric monofractions of ilmenite and chemical composition of ilmenite. There weare used of their groups: mineralogical petrofond, tectonic, sedimentation, paleogeographic coefficients; granulometric and statistical coefficients of the empirical distribution polygon (UPR) of sediments, calculated by weight and quantitative presentation systems and their efficiency (measuers: location - average size, trend, average; scattering - sorting, standard deviation, variations; deviations from the normal law of distribution - asymmetry, excess.
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The importance of an integrated approach in solving scientific and practical issues of geology, geomorphology, paleogeography of the Left Bank of the Middle Dnieper
Authors O. Komliev, S. Bortnyk, Yu. Filonenko, O. Kovtoniuk, T. Lavruk and N. PohorilchukSummaryDevelopment of relief and paleogeography of the territory of the hydrographic basin of the Left Bank of the Middle Dnieper in the middle and late Pleistocene in the publications of researchers are most often associated with direct and side effects of the Dnieper glaciation. This applies, in particular, to the problem of restructuring the quaternary hydrographic network of the territory. The glacier squeezed out compensatory shafts, created dams and before him there were glacial pools. These were changed the course of erosion-accumulation processes in the riverbeds, valleys, and the entire basin. This inevitably caused the restructuring of the hydrographic network: intra-valley, intra-system and intersystem structures of the hydrographic system. Glacioisostasis also plays an important role. Specific examples of restructuring is interception collision, upper and lateral collisions. Hydrographic basin of the Left Bank of the Middle Dnieper is located on the Dnieper-Donetsk depression (DDD), which according to a set of geological, geophysical, paleogeographic, paleogeomorphological data is an active geodynamic structure. Studies of various issues of Quaternary geology, geomorphology and paleogeography of the Left Bank of the Middle Dnieper should be conducted on a comprehensive basis, which is created geology, geophysics, paleogeomorphology. It is necessary to take into account and link the results obtained for this area, as well as the results of research in other regions.
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Features of the local areas deep structure of on tropical cyclone movements trajectories
Authors M. Yakymchuk, I. Korchagin and K. YanushkevichSummaryThe results of studying the deep structure in local areas along the trajectories of tropical cyclones (TCs) movement in 2017 are presented. In four regions of TC activity, 56 local areas were examined along 5 trajectories of cyclone movement. Additionally, a survey of the central zones of 25 TCs, recorded by spacecraft, was carried out. Investigations on local areas of cyclones movement were carried out using frequency-resonance methods of satellite images processing. During the images processing of survey areas on the trajectories of cyclone movement, from the surface instrumental measurements were carried out in order to register responses (signals) at the frequencies of hydrogen and basalts. The results of processing images of the 81st local area indicate that the formation and movement of TCs occurs mainly along the areas of basalt volcanoes location, as well as basalt deposits in the upper part of the cross-section. The results of the conducted studies indicate the feasibility of using mobile methods of frequency-resonance processing of satellite images for predicting the places of formation and trajectories of the tropical cyclones.
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Geoinformation support for the management of the localization objects of municipal solid waste
Authors O. T. Azimov, O. G. Rogozhin, O. M. Trofymchuk and D. P. KhrushchovSummaryThe report considers the relevance of approaches to municipal solid waste (MSW) management, describes two classes of the objects for their localization such as the unauthorized dumps and disposal landfills which play the different functional roles in waste management. Together with the host and surrounding components of the environment the landfills and the dumps are represented as a special environmental-techno(anthropo)genic system. Since the waste itself is deposited into the geological environment (GE), within the framework of this system in a whole, the technogenic-geological subsystem is considered, which can be represented by certain functional model or an infogeoframe for specified application (i.e. target-oriented). The methodical complex of information support is proposed conceptually for the studying and management of the GE as a basis for MSW localization. This complex should include two blocks: a prognostic-retrospective-static model for the GE and an integrated ecological-geological model for the technogenic-geological object. Therefore, the main service tool of the information support for the MSW management of the objects of localization in the GE is a provision of the information-functional models for the certain infogeoframes. Completeness of these ecological-geological models is specified by the goals and problems of the management of reference class of the objects (an abstract infogeoframe). As an illustration of the filling the information model by some data and its implementation into the Kyiv’s Landfill area No 5 is present. The main directions of further research are outlined.
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