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Упит dcterms_subject_txt:geological exploration

224 items

  • Konceptualni model hidrogeotermalnog sistema šire okoline Brusa - geološki, geofizički i hidrogeološki uslovi / Conceptual model of hydrothermal system of Brus area - geological, geophysical and hydrogeological condition

    Dejan Milenić, Ana Vranješ, Marinko Toljić, Ivana Vasiljević, Natalija Radosavljević, Matija Ognjanović (2024)
    Na širem području Brusa izvedena su naučna multidisciplinarna istraživanja za potrebe ocene geotermalnog potencijala sa zadatkom de9inisanja uslova formiranja geotermalnih i termomineralnih resursa. Interpretacijom podataka zaključeno je da je na predmetnom terenu formiran "hibridni" hidrogeotermalni sistem, koji sadrži elemente sistema u rov-strukturi i elemente konvektivnog hidrogeotermalnog sistema sa rezervoarom u pokrivaču granitoidne intruzije. Sistem čine dva nezavisna hidrogeotermalna rezervoara. Prvi rezervoar formiran je u gornjokrednim krečnjacima na dubini od oko 1550 m. Maksimalne prognozne temperature hidrogeotermalnih resursa u krečnjačkom ...
    hidrogeotermalni sistem, gornjokredni krečnjaci, trijaski mermeri, Brus

  • Еоценска фауна југозападног дела Сирт басена (Либија)

    Љупко Рундић, Мери Ганић (2020)
    Еоцен, крупни мекушци, нумулити, ЈЗ Сирт басен, Либија

  • Prostorni položaj ofiolita istočne Vardarske zone: geofizičko-geološki model i njegove geodinamičke implikacije

    Dragana D. Petrović (2015-12-29)
    Centralni deo Balkanskog poluostrva je geotektonski veoma složen. Tetis je zatvorentokom gornjeg mezozoika, a ofioliti na zapadu i ofioliti Vardarske zone predstavljajuostatke nekadašnjih okeanskih prostora. Najistočniji deo Vardarske zone razlikuje se odsvih ostalih ofiolita na Balkanskom poluostrvu i karakteriše se najizraženijim suprasubdukcijskimafinitetom. Istočna vardarska zona locirana je u centralom delu Srbije.Na severu se prostire do Apusena u Rumuniji, a na jugu obuhvata cetralni deoMakedonije i Peonias zonu u severnoj Grčkoj. Istočna vardarska zona se nalazi istočnood geotektonske jedinice Kopaonik ...
    Istočna vardarska zona; ofioliti; 2D i pseudo 3D geofizičko-geološkimodel; geodinamička evolucija
    ... ophiolites in the Vardar zone. Ofioliti 29, 251–254. Mavrides, A., Matarangas, D., Karfakis, J., 1982. Geological map of Greece, Skra sheet, 1:50.000, Institute of Geology and Mineral Exploration. Mendonça, C. A., Silva, J. B. C., 1993. A stable truncated series approximation of the reduction- ...
    ... Geologie France Bullettin 7, 1020–1049. Mercier, J., Kockel, E., Ioannides, K., Maltzaris, F.,1993. Geological map of Greece, Evzoni sheet, 1:50.000, Institute of Geology and Mineral Exploration. Miller, G. H. and Singh, V., 1994. Potential field tilt-a new concept for location of potential field ...
    ... similar to oceanic supra-subduction mantle. Keywords: East Vardar Zone; Ophiolite; 2D and pseudo 3D geophysical-geological models; Geodynamic evolution Scientific field: Geological engineering Field of academic expertise: Geophysics UDC number: 552.3/.5: 550.34.01(497)(043.3) 552 ...

  • Keyword-Based Search on Bilingual Digital Libraries

    Ranka Stanković, Cvetana Krstev, Duško Vitas, Nikola Vulović, Olivera Kitanović (2017)
    This paper outlines the main features of Biblisha, a tool that offers various possibilities of enhancing queries submitted to large collections of aligned parallel text residing in bilingual digital library. Biblishsa supports keyword queries as an intuitive way of specifying information needs. The keyword queries initiated, in Serbian or English, can be expanded, both semantically, morphologically and in other language, using different supporting monolingual and bilingual resources. Terminological and lexical resources are of various types, such as wordnets, electronic ...

  • Towards a Mining Equipment Ontology

    Ranka Stanković, Ivan Obradović, Olivera Kitanović, Ljiljana Kolonja (2012)
    ... of such resources are the WAND Mining Taxonomy, which contains over 900 terms and 200 synonyms covering major mining engineering areas including exploration, extraction, extractive metallurgy, geology, equipment, safety, and more,1 or the Corporate Equipment Taxonomy developed by Meridium Asset Performance ...
    ... the Technological coal mine information system [5]. A slightly more complex terminological resource in the form of a thesaurus was developed for geological terms, with more than 3000 terms and their English equivalents, within the GeolISS project3. Development of various terminological resources at ...

  • Tektonska evolucija istočne periferije timočke eruptivne oblasti

    Stefan Zujić (2024)
    U radu su predstavljeni rezultati proučavanja tektonskih i litostratigrafskih karakteristika istočnog oboda Timočke eruptivne zone. Zaključci o geološkim odnosima u okviru Timočke eruptivne oblasti i susednih geotektonskih jedinica izvedeni su na osnovu podataka prikuljenih tokom terenskih istraživanja i podataka dobijenih iz publikovanih radova. Rezultati rada ukazuju da je teren koji je bio tema ovog istraživanja, u strukturno-tektonskom smislu oblikovan tokom glavnih geodinamičkih događaja u okviru Karpato-balkanskog orogenog luka. Analizom strukturnog sklopa su utvrđeni glavni deformacioni događaji koji su predsavljeni ...
    tektonska evolucija, timočka eruptivna oblast

  • Hypogene speleogenesis related to porphyry magmatic intrusions and its influence on subsequent karst evolution in the Peruvian high Andes

    Alexander Klimchouk, David Evans, Sasa Milanovic, Cristian Bittencourt, Mauro Sanchez, F. Carlos Aguirre (2022)
    Earth-Surface Processes

  • Отпад из процеса сагоревања угља као сировина за добијање елемената ретких земаља

    Бојан Земљак (2024)
    Због великог броја индустрија у којима се користе ови ресурси, глобална економија се у великој мери ослања на елементе ретких земаља. Елементи ретких земаља су есенцијална сировина — материјал за развој савремених технологија, али у односу на њихову огромну потражњу, њихово вађење је ограничено и повезано је са значајним утицајима на животну средину. Због њихове ограничене доступности, проблема који се јављају при процесима експлоатације, све више и више земаља почиње да тражи повољније могућности вађења елемената [REE] из секундарних ...
    Елементи ретких земаља, резерве, употреба, представници и методе опоравка елемената ретких земаља
    ... F., 2021. Recovery potential of rare earth elements from mining and industrial residues: A review and cases studies. Jourma! of Geochemical Exploration, 221, p.106699. [11] Mayer, B.K., Baker, L.A., Boyer, T.H., Drechsel, P., Gifford, M., Hanjra, M.A., Parameswaran, P., Stoltzfus, J.., Westerhoff ...
    ... . 6th ed. New York: John Wiley and Sons Ltd, p.427-74. [63] Balaram, V., 2019. Rare earth elements: A review of applications, occurrence, exploration, analysis, recycling, and environmental impact. Geoscience Frontiers, 10(4), p.1285-1303. [64] Ragheb, M., 2011. Thorium resources in rare earth ...
    ... Choudhury, A.S. and Mukherjee, K., 2022. Processing of port dredged sand in offshore set-up for value additton—Approach and constraints. In Innovafive Exploration Methods for Minerals, Oil, Gas, and Groundwater for Sustainable Development, Elsevier, p. 369-385. [79] Dight, P.M., Douglas, B., Henley, K ...

  • Primena digitalne fotogrametrije u rudniku Rudnik

    Nikola Mirković, Luka Crnogorac, Katarina Urošević (2023)
    Digitalna fotogrametrija, lasersko skeniranje i virtuelizacija sve više pronalaze aktivne uloge u rudarstvu, prvenstveno zbog svoje široke mogućnosti primene. Laserskim skeniranjem i fotogrametrijom snimaju se i kreiraju 3D modeli otkopa, jamskih hodnika, površinskih kopova, površinskih objekata (zgrada, spomenika, predmeta), a vrši se skeniranje celih rudnika koji se rekonstruišu u 3D digitalne modele. Fotogrametrija predstavlja proces fotografisanja objekata pomoću fotoaparata i daljom obradom fotografija u različitim softverskim alatima kreiraju se realne kopije 3D modela objekata ili predmeta u digitalnoj formi. Za ...
    digitalna fotogrametrija, prostorna vizuelizacija, rudarski objekti, podzemna eksploatacija
    ... Helfrich, W. J., Macdonald, B., Navoyski, J., & Demich, B. (2019). Developing a virtual reality environment for mining research. Mining, metallurgy & exploration, 36, 597-606 [19] Tichon, J., & Burgess-Limerick, R. (2011). A review of virtual reality as a medium for safety related training in mining. ...
    ... 109 financial investments of the company), 3D models of underground spaces can be obtained that are at a satisfactory level for the needs of geological mapping in the mine, insight of management and engineers into the state of underground spaces and quality assessment of performed mining works. ...

  • Application of VIКOR method in the selection of an optimal splution of excavation “Borska Reka” ore deposit

    Sanja Bajić, Dragoljub Bajić, Branko Glušćević, Radmila Gaćina (2023)

  • Distribution of major and trace elements in the Kovin lignite (Serbia)

    Dragana Životić, Olga Cvetković, Predrag Vulić, Ivan Gržetić, Vladimir Simić, Konstantin Ilijević, Biljana Dojčinović, Suzana Erić, Bogdan Radić, Sanja Stojadinović, Snežana Trifunović (2019)
    geochemical and mineralogical study was performed on lignite samples from the Upper Miocene Kovin deposit, hosting three coal seams. The Kovin lignite is characterized by high moisture content, medium to high ash yield, medium to high sulphur content and a relatively low gross and net calorific value. The mineralogical composition, and major and trace element contents were determined by X-ray diffraction, scanning electron microscopy with energy dispersive Xray spectroscopy (SEM-EDS) analyses, and inductively coupled plasma optical emission spectrometry (ICP-OES). ...
    General Earth and Planetary Sciences, General Environmental Science
    ... in 1991, and is still active. Since 1991, the Kovin mine has produced about 5 Mt of lignite, with an annual produc­ tion of ~ 300,000 t. Geological exploration of the wider area of the Kovin de­ posit, including the Kostolac coal basin, began in the late 19th century. The Upper Miocene (Pontian) age ...
    ... 2019 | 72/1 | 51–79 | 6 Figs. | 8 Tabs. | Suppl. Tabs. 7 | Suppl. Figs. 2 | www.geologia-croatica.hr Journal of the Croatian Geological Survey and the Croatian Geological Society 1. INTRODUCTION Lignites of Upper Miocene age are the most important energy source in Serbia. Almost all lignite production ...
    ... The same authors conclude that the geological origins leading to the enrichment of arsenic in coal are: hydrothermal solution activities controlled by the tec­ tonic fracturing of the region, sources of terrigenous detrital ma­ terial controlled by regional geological settings with the distribu­ tion ...

  • Keyword Extraction from Parallel Abstracts of Scientific Publications

    Slobodan Beliga, Olivera Kitanović, Ranka Stanković, Sanda Martinčić-Ipšić (2017)
    ... 1 The SBKE Method The network or graph-based approach, where a network (or graph) of words is used for the representation of texts, enables the exploration of the relationships and structural information incorporated in a text very efficiently. Although, there are variations, the usual way of representing ...
    ... extracted solely from short abstracts. Besides that, extracted key- words from whole papers can serve as a basis for the first approximation of a geological ontology construction. In addition, we will explore, if we can gain by translating the set of annotated keywords from the source to the target language ...

  • Terminology Acquisition and Description Using Lexical Resources and Local Grammars

    Cvetana Krstev, Ranka Stanković, Ivan Obradović, Biljana Lazić (2015)
    Acquisition of new terminology from specific domains and its adequate description within terminological dictionaries is a complex task, especially for languages that are morphologically complex such as Serbian. In this paper we present an approach to solving this task semi-automatically on basis of lexical resources and local grammars developed for Serbian. Special attention is given to automatic inflectional class prediction for simple adjectives and nouns and the use of syntactic graphs for extraction of Multi-Word Unit (MWU) candidates for ...
    ... AXAXN – a noun preceded by two adjectives that agree with it in gender, number, case and animateness; e.g. površinski istražni radovi ‘surface exploration works’. 8. N6X - a noun followed by three words that do not inflect in the MWU. Three syntactic structures are possible: a. NNgiPrepNp - a noun ...
    ... s and followed by a word that does not inflect in the MWU, usually a noun in the genitive or instrumental case; e.g. geološko kartiranje terena ‘geological field mapping’. 6. NXN – a noun followed by a noun that agrees with it in number and case, where the separa- tor can be a hyphen; e.g. bager kašikar ...

  • Properties of fly ash and slag from the power plants

    Miloš Šešlija, Aleksandra Rosić, Nebojša Radović, Milinko Vasić, Mitar Đogo, Milovan Jotić (2016)
    This paper describes the physical, chemical and mineral properties of ash and slag, which were taken from thermal power plants Nikola Tesla A, Nikola Tesla B, Kostolac A and Kostolac B. The knowledge of the mineralogical material composition is important because the type of minerals directly determines the properties of the fly ash and slag and their possible application. Laboratory tests showed that ash and slag samples consist of the following minerals: amorphous materials, quartz, feldspar, mullite, melilite, cristobalite, ...
    fly ash, slag, physical composition, chemical composition, mineral composition, X-ray diffraction method
    ... available at: www.dr.rgf.bg.ac.rs 2016 | 69/3 | 317–324 | 6 Figs. | 4 Tab. | www.geologia-croatica Journal of the Croatian Geological Survey and the Croatian Geological Society 1. INTRODUCTION Fly ash is the product of burning coal and arises from inorganic substances melting in the thermal ...
    ... parts of the basin (Fig. 3). The Drmno and Ćirikovac fields are ex- ploited, while the Smederevsko Podunavlje field is still under pre- liminary exploration (STOJANOVIĆ et al., 2012). 3. GEOLOGY The area of the Kolubara basin consists of Palaeozoic, Mesozoic, Tertiary and Quaternary rocks (Fig. 4) ...
    ... 1974). Annually, the Kolubara basin produces about 30Mt lignite, which amounts to 70% of the total coal production in Serbia. According to the Geological Survey of the Kolubara basin, the lignite re- sources and reserves are currently estimated at 2811Mt. Most of the lignite produced (90%) is used ...

  • Availability as a dimension of energy security in the Republic of Serbia

    Boban Pavlović, Dejan Ivezić (2016)
    There is a range of modern approaches and models in literature for the evaluation and determination of energy security, which are based on different parameters and indicators. For most of them, a common characteristic is emphasizing the avail ability of energy, as an important dimension for ensuring energy security. In this paper, concise overview of Serbian energy sectors is given and appropriate energy indicators are defined and determined. Selected indicators provide insight into the main components that characterize availability ...
    raspoloživost energije, energetski indikatori, energetska bezbednost
    ... consumption per year = = (10) Except in the case of coal, it is evident that Serbian SS is very low and additional activities in oil and gas exploration should be undertaken. Diversification Diversity index provides more information than simply the number and amount of en- ergy sources used. ...

  • Crystallography and Surface Oxidation of Stoichiometric Arsenopyrite from Šumadija-Kopaonik Pb-Zn/Polymetallic Ore District (Serbia)

    Ivana Jelić, Aleksandar Pačevski, Aleksandar Kremenović, Aleš Šoster, Andreja Šestan, Janez Zavašnik (2023)
    The behaviour and stability of arsenopyrite largely depend on its crystal structure, but studies of crystallography and structural defects are scarce. For clarification, we investigated a series of natural arsenopyrite crystals from the polymetallic Pb-Zn-(±Cu,Ag,Au,Sb,Bi,W) Šumadija-Kopaonik ore district (Serbia) by powder X-ray diffraction (XRPD). Among them, samples from the Drenjak gold mineralisation showed near-stoichiometric FeAsS composition and were further investigated by conventional and high-resolution transmission electron microscopy methods. TEM revealed abundant planar crystallographic defects and epitaxial surface oxide layer ...
    Inorganic Chemistry, Condensed Matter Physics,General Materials Science, General Chemical Engineering, crystal structure, FeAsS, oxidation, TEM, XRPD
    ... [CrossRef] 13. Maksimović, Z.; Divljan, S. The Results of Geological-Petrographic Mapping, and Observation of Ore Occurrences in the Areas of Plana and Gokčanica on the Western Slopes of Željin. In Book of Abstracts S.A.N. XXXIIIL; Geological Institute S.A.N.: Belgrade, Serbia, 1953; Volume 5, pp. ...
    ... n renders arsenopyrite an economically relevant ore mineral and is the main reason for the extensive industry-driven research. Subjected to exploration and mining activities, arsenopyrite is also one of the main natural sources of arsenic in environmental geochemistry, presenting, potential ...

  • Agates of the Lece Volcanic Complex (Serbia): Mineralogical and Geochemical Characteristics

    Zoran Miladinović, Vladimir Simić, Nenad Nikolić, Nataša Jović Orsini, Milena Rosić (2024)
    Agate veins and nodules occur in the Lece Volcanic Complex (Oligocene-Miocene) situated in the south of Serbia and occupying an area of 700 km2. This volcanic complex is composed predominantly of andesites, with sporadic occurrences of andesite-basalts, dacites and latites, and features agate formations that have been very little investigated. This study focuses on five selected agate occurrences within the Lece Volcanic Complex, employing optical microscopy, scanning electron microscopy (SEM), X-ray powder diffraction analysis, inductively coupled plasma mass spectrometry ...
    Lecki vulkanski kompleks, andeyit, kalcedon, kvarc, opal-CT, mikrostruktura, organska materija

  • The use of biological markers in determination of origin and type of organic matter in the Tisza river sediments

    Snežana Štrbac, Gordana Gajica, Aleksandra Šajnović, Nebojša Vasić, Ksenija Stojanović, Branimir Jovančićević (2013)
    The objective of the study was to determine the origin and type of organic matter (OM) of the Tisza recent sediments along the distance of 153 km through the territory of Serbia. For this purpose group organic-geochemical parameters and biomarker compositions were used. All samples contain approximately same amount of OM, which was deposited under uniform, slightly reducing conditions. Based on the distribution of n-alkanes, the origin and type of OM could not be precisely estimated. However, n-alkane patterns ...
    sediments, Tisza River, organic matter, biomarkers, oil pollutants
    ... августа 2013) REFERENCES 1. K. E. Peters, C. C. Walters, J. M. Moldowan, The Biomarker Guide, Vol. 2: Biomarkers and Isotopes in the Petroleum Exploration and Earth History, Cambridge University Press, Cambridge, 2005, pp. 483–486, 499–500, 483–486, 493, 499, 558, 569, 612 2. B. P. Tissot, D. H. ...
    ... cules in living organisms. In organic geochemistry, they are extensively used to estimate the origin of sedimentary organic matter (OM) and its geological evo- lution.1 In other words, based on the presence, abundance and distribution of res- pective biomarkers in oils, the origin, depositional environment ...
    ... sediments, apart from heavy fuel oil from barges, to a lower extent can probably be related to the Rusanda and Elemir crude oils. According to the geological setting of the terrain, there is no possibility of natural migration of oils from the oil fields to the Tisza River surface sediments. Therefore ...

  • Anisotropic grossular–andradite garnets: Evidence of two stage skarn evolution from Rudnik, Central Serbia

    Bojan Kostić, Danica Srećković-Batoćanin, Petyo Filipov, Pavle Tančić, Kristijan Sokol (2021)
    This paper presents LA-ICP-MS data for garnets from the Rudnik skarn deposit (Serbia), which range from Grs45–58Adr40–52Alm2–3 in the core and Adr70–97Grs2–29Sps1 in the rim displaying anisotropy and zoning. In spite of wide compositional variations the garnets near the end-member of andradite (Adr > 90) are generally isotropic. Fe-rich rims exhibit LREE depletion and flat HREE pattern with weak negative Eu anomaly, including higher As and W contents. On the other side, the Fe-poorer core shows flat REE pattern ...
    grandite, garnets, skarn, Rudnik
    ... In: Basic Geological Map of Yugoslavia 1:100,000. Federal Geological Institute, Belgrade, 1–82 (in Serbian with English and Russian summaries). Brković T., Radovanović Z., Pavlović Z. & Dimitrijević M. 1980: Geological Map of Yugoslavia 1:100,000, Sheet Kragujevac. Federal Geological Institute ...
    ... composed of pyrrhotite, galenite, sphalerite, chalcopyrite and arsenopyrite (Stojanović et al. Fig. 1. a — Simplified geological map of Rudnik area modified according to the Basic geological Map 1:100,000, Sheets Kragujevac (Brković et al. 1980) and Gornji Milanovac (Filipović et al. 1978); b — Exact position ...
    ... 1183 Filipović I., Pavlović Z., Marković B., Rodin V., Marković O., Gagić N., Atin B. & Milićević M. 1978: Geological Map of Yugoslavia 1:100,000, Sheet Gornji Milanovac. Federal Geological Insti­ tute, Belgrade. Gaspar M., Knaack C., Meinert D.L. & Moretti R. 2008: REE in skarn systems: A LA-ICP-MS ...

  • Laboratory Testing of Nanosilica- Reinforced Silicate and Polyacrylamide Gels

    Irina Zahirovic, Dušan Danilović, Milica Šuput Vranjin, Miloš Tripković (2023)
    drilling fluid formulation, upstream oil and gas, fluid dynamics, fluid loss control, gel