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Упит dcterms_subject_txt:Mineral deposit exploration

363 items

  • Mineralni i hemijski sastav čestica u atmosferi zone Kolubarskog basena i uticaj na životnu sredinu

    Željko R. Cvetković (2013-11-18)
    Čestice iz vazduha su prikupljane u blizini termoelektrane i površinskih kopovarudnika uglja u Kolubarskom basenu. Izmereni srednji sadržaji koncentracija rastvornih,nerastvornih i ukupnih taložnih materija na godišnjem nivou prelaze 200 mg/m2dan (K-1, K-3, K-4, K-5). Distribucija čestica na svim lokacijama klasifikovana je na česticeveličine veće od 10 μm, zatim na čestice veličine od 10 μm do 2,5 μm i klase česticaveličine ispod 2,5 μm. Ovakva podela je dala odnos koncentracija inhalatornih irespiratornih čestica po mernim mestima. Skenirajuća elektronska mikroskopija jepokazala ...
    mineral, četica, prašina, leteći pepeo, aerosediment, PM10, teški metali,koncentracija, veličina čestice, Kolubara
    ... D-dolomit, Gl-minerali gline, A-anhidrit. Za aerosedimentane lokaliteta K-4 dobijen je sledeći mineralni sastav. Kvarc je dominantan mineral u oba ispitivana perioda. Sledeći mineral po zastupljenosti je feldspat koji je više prisutan od ostalih minerala dok su ostali minerali slabo zastupljeni ...
    ... međuatomskim rastojanjima za letnji i zimski period K – 1 K – 3 LETO ZIMA LETO ZIMA Ictg d Ǻ mineral Ictg d Ǻ mineral Ictg d Ǻ mineral Ictg d Ǻ mineral 14 10,09 M 17 14,88 Co 16 10,05 M 14 10,03 M 16 7,64 G 16 10,03 M 19 7,64 G 11 5,30 D 17 7,23 Co 17 7,62 G 23 4,46 M ...
    ... međuatomskim rastojanjima za letnji i zimski period K – 5 K – 7 LETO ZIMA LETO ZIMA Ictg d Ǻ mineral Ictg d Ǻ mineral Ictg d Ǻ mineral Ictg d Ǻ mineral 19 10,03 M 16 9,94 M 22 10,00 M 23 7,64 G 22 7,64 G 14 7,62 G 29 7,58 G 94 4,26 Q,G 18 7,16 M 11 6,37 F 19 6,31 F ...

  • Laboratory testing of fly ash

    Miloš Šešlija, Aleksandra Rosić, Nebojša Radović, Milinko Vasić, Mitar Đogo, Milovan Jotić (2016)
    Fly ash is one of the most common waste materials created by burning of coal. It is composed of smaller particles, consisting mainly of aluminosilicate glass, mullite and quartz, which are collected by electrostatic separators (filter) of gaseous products arising from the combustion of coal. This paper presents the pozzolanic properties, mechanical properties, chemical and mineral composition of fly ash obtained in the combustion process in a power plant Nikola Tesla A (PPNT A) with the addition of a ...
    chemical composition, fly ash, mechanical properties, mineral properties, pozzolanic properties, X-ray diffraction
    ... tions are most commonly used in practice. 3.2 Test results of mineral composition of fly ash X-ray diffraction is determined by the mineral composition of the ash and slags samples. The characteristic peaks of the mineral composition are show in Tab. 8 and Fig. 2a, 3a, 5a, 6a. Table ...
    ... using the fly ash from PPNT A for making elements of road structures (top and bottom layers of the road). 2 Experimental 2.1 Mineral properties of fly ash Mineral properties of samples of fly ash from thermal plant PPNT A production were determined by X-ray studies at the Laboratory of Cry ...
    ... strongest mineral calcite. Although the amount of added lime is very small, and the strongest peaks of the dominant portlandite that largely obscured broad diffuse peaks corresponding to a significant share of the amorphous material, it can be confidently said that in the samples this mineral cannot ...

  • Phase relations and physical indicators of municipal waste from old landfills in Serbia

    Dragoslav R Rakić, Irena G Basarić Ikodinović, Jovana M Janković, Tina D Đurić (2021)
    Due to certain similarities of municipal waste and soil, usually for the determination of basic parameters of physical state, laboratory and field tests which are common in geotechnical investigations are used. It is often to construct an apparatus for special purpose to perform some specific laboratory and field tests. Therefore, different values of indicators of municipal waste physical state can be found in the literature. The basic reasons should be found in different definitions and methods that researchers use ...
    municipal waste, moisture content, unit weight, specific gravity, grain size distribution, porosityGeneral Computer Science
    ... in geotechnical investigations such as: direc field measurements (excavation of exploration pit at the landfili with measurement of volume and weight of excavated waste), measurements on samples from exploration boreholes, geodetic surveying of geometry and calculation of landfill volume with ...

  • Dehydroicetexanes in sediments and crude oils: Possible markers for Cupressoideae

    Hans Peter Nytoft, Geir Kildahl-Andersen, Sofie Lindström, Frode Rise, Achim Bechtel, Danica Mitrović, Nataša Đoković, Dragana Životić, Ksenija A. Stojanović (2019)
    Two previously unidentified dehydroabietane isomers were isolated from Miocene Serbian lignite and Rhaetian (Late Triassic) coaly mudstones from South Sweden and characterized using NMRspectroscopy as cis- and trans-dehydroicetexane. Both have a 9(10?20)-abeo-abietane or icetexane skeleton, consisting of a 6-7-6 tricyclic framework with seven carbons in ring B instead of the usual six in common diterpanes of the abietane-type. Dehydroicetexanes can be detected using GC-MS-MS in m/z 270?146 chromatograms without interference from dehydroabietane or other isomers. Dehydroicetexanes are often abundant ...
    Geochemistry and Petrology

  • A Data Driven Approach for Raw Material Terminology

    Olivera Kitanović, Ranka Stanković, Aleksandra Tomašević, Mihailo Škorić, Ivan Babić, Ljiljana Kolonja (2021)
    The research presented in this paper aims at creating a bilingual (sr-en), easily searchable, hypertext, born-digital, corpus-based terminological database of raw material terminology for dictionary production. The approach is based on linking dictionaries related to the raw material domain, both digitally born and printed, into a lexicon structure, aligning terminology from different dictionaries as much as possible. This paper presents the main features of this approach, data used for compilation of the terminological database, the procedure by which it has ...
    sirovine, rudarstvo, terminologija, rečnik, terminološka aplikacija, mobilna aplikacija, digitizacija, leksički podaci, korpusi, otvoreni povezani podaci
    ... of Petroleum Exploration & Production]; INA Industrija nafte d.d. Sektor korporativnih komunikacija: Zagreb, Hrvatska, 2007; p. 1038. 17. Tomanec, R.; Miljanović, I. Mali Terminološki rečNik Pripreme Mineralnih Sirovina: Englesko-Srpski i Srpsko-Engleski [A small Dictionay of Mineral Preparation: ...
    ... dictionary of oil and gas exploration and production” [16], which is used both in Croatia and Serbia. With 12,200 definitions and 7100 terms, it contains a compre- hensive vocabulary of both scientific and professional terms used by scientists, experts and students in the area of exploration and production of ...
    ... other disciplines. There is also a small bilingual dictionary of mineral processing [17] with 2415 transla- tion pairs, in both directions, English to Serbian and Serbian to English, but also without definitions. Finally, a glossary of mineral processing terms with 1400 definitions in Serbian is used at ...

  • Savremene tendencije upravljanja mineralnim resursima u svetu i stanje u Republici Srbiji

    Dragan Ignjatović, Vladimir Pavlović (2024)
    Strategija upravljanja mineralnim i drugim geološkim resursima na održivim i holističkim osnovama, služi kao osnova za vladinu politiku vezanu za geološka istraživanja i eksploataciju mineralnih resursa u skladu sa njenim pravnim i regulativnim obavezama. Uspostavljanje Strategije obezbeđuje osnovu za dalji razvoj i ona se realizuje u relevantnim oblastima politike kako bi se postigli postavljeni ciljevi, pri čemu se resursi moraju dobijati i koristiti na održiv način. Strategija treba transparentno da istakne mogućnosti i izazove, stvori preduslove, razjasni uloge i ...
    strategija upravljanja, mineralni resursi, rezerve, rudarstvo, geologija.
    ... s in the transparent process of mineral resource management and updating the Strategy in accordance with changing circumstances. The paper presents the role and importance of mineral raw materials, trends in production and consumption, modern tendencies in mineral resource management, and the situation ...
    ... rudarstvo, geologija. Abstract The strategy for managing mineral and other geological resources on sustainable and holistic foundations serves as the basis for government policy related to geological research and the exploitation of mineral resources, in accordance with its legal and regulatory ...
    ... Zlatibor, 9-12 October 2024 SAVREMENE TENDENCIJE UPRAVLJANJA MINERALNIM RESURSIMA U SVETU I STANJE U REPUBLICI SRBIJI CONTEMPORATY TRENDS IN MINERAL RESOURCE MANAGEMENT IN THE WORLD AND THE SITUATION IN THE REPUBLIC OF SERBIA Ignjatović D.!, Pavlović V Apstrakt Strategija upravljanja mineralnim ...

  • Mesozoic carbonate rocks in Serbia used as dimension stone

    Vesna Matović, Tijana Vojnović Ćalić (2016)
    The building industry in Serbia uses, to a great extent, imported natural stone for architectural purposes. The significance of local deposits, particularly limestones, is not adequately perceived despite the country’s abundance of these valuable resources. Therefore, this study focuses on Serbia’s Mesozoic carbonate rocks, specifically on the deposits of four selected quarries: Klisura, Skrzut, Struganik, and Tisnica. The quality and prospects of the application of these limestones has not yet been the subject of a detailed, comprehensive investigation. Therefore, ...
    Ukrasni kamen, Mezozoik, Krečnjak, Srbija, Petrografija, Fizičko-mehanička svojstva
    ... range of 2,650–2,690 kg/ m* (Fig. 4a). The values of real density (2,700–2,712 kg/ m?) are in accordance with the mineral composition of these almost pure limestones (the main mineral is calcite with a density value of 2,710 kg/m?*; Fig. 4a). The constant real density values of the Tisnica limestone ...
    ... decisive factors in determining stone type. The other crucial criterions for the profitable production of dimension stone are the soundness of the deposit (possibility of block production of a suitable size) and market demand (Luodes et al. 2000). Despite the fact that concrete and glass were the ...
    ... and banked limestone of the Lower Cretaceous age corre- sponding to Urgonian facies. Flowing in a N-S direction, the river Tisnica splits the deposit in two (Fig. 1d). The exploitation takes place at a few exploitation levels on both sides of the riverbed covering an area of approximately 0 ...

  • E-Connecting Balkan Languages

    Cvetana Krstev, Ranka Stanković, Duško Vitas, Svetla Koeva (2009)
    In this paper we present a versatile language processing tool that can be successfully used for many Balkan languages. This tool relies for its work on several sophisticated textual and lexical resources that were developed for most of Balkan languages. These resources are based on several de facto standards in natural language processing.
    Query expansion, e-dictionary, wordnet, proper name, aligned text
    ... g various heterogeneous lexical resources. Subsequently, many new features were added, particularly those that helped in the production and exploration of aligned texts on the basis of the incorporated lexical resources [9]. The new tool WS4QE (shortened for Work Station for Query Expansion) ...
    ... user can freely browse. One such visualization is represented in Figure 1. Browsing, however, is not a particularly successful form of text exploration. WS4LR module for aligned texts offers users to pose different forms of queries that can be automatically expanded by using various bilingual ...

  • Advantages and Disadvantages of a Parallel and Zigzag Method of Acquisition in Walking Mode in Magnetometric Archeological Research

    Mirko Petković, Vesna Cvetkov, Branislav Sretenović (2014)
    магнетометријска испитивања, цик-цак и паралелна аквизиција у ходајућем моду, линеарне аномалије, археологија
    ... coordinates measured using an absolute station. Also, if large areas are to be explored, it is desirable to divide them into a se- ries of smaller exploration polygons with margin lengths not exceeding 25 m. CONCLUSION The linear interpolation method is the most common choice of interpolative methods ...
    ... the Polytechnical University. Urquhart, T. 1988 Decorrugation of enhanced magnetic fi eld maps, 58th Annual International Meeting, Society of Exploration Geophysicists, Expanded Abstracts: 371-372. Vasiljević, I. 2013 Defi nisanje arheoloških objekata na lokalitetu Kremenite njive primenom geofi ...
    ... uspešnu pri- menu magnetometrije za arheološko rekognosci- ranje. Pored gvozdenih materijala, veoma je bitno prisustvo male količine magnetičnih minerala iz grupe gvožđe-oksida i gvožđe-sulfi da, organskog ili neorganskog porekla, koji prouzrokuju razliku u magnetskoj susceptibilnosti arheoloških ...

  • Linear-motor plunger pump increases lifting efficiency

    Bojan Martinović, Dušan Đekić, Dušan Danilović, Pavel Isaev (2022)
    plunger, linear, motor, pumps

  • The state and perspective of the natural gas sector in Serbia

    Dejan Ivezić, Marija Živković, Dušan Danilović, Aleksandar Madžarević, Miloš Tanasijević (2016)
    The strategy of long-term energy development of Serbia identifies an increase of share of natural gas in final energy consumption as one of the main aims. Serbia has signed a strategic agreement with the Russian Federation on cooperation in the oil and gas sector, within which the project South Stream pipeline is planned to be realized. In addition, the Republic of Serbia has signed the Treaty that establishes the Energy Community and accepted the obligation to implement the Energy ...
    Consumption, natural gas, scenarios of development

  • Hydraulic impact of pressure transients from water conveyance tunnel on the complex hydrogeological system: A case study HPP

    Igor Jemcov, Maja Todorović, Aleksandar Jemcov, Marina Ćuk Đurović (2024)
    Tunel pod pritiskom, Unutrašnji pijezometri, Tranzijenti pritiska, Karstna izdan, Pukotinska izdan, Hidraulički odziv
    ... exhibited attenuated responses, indicating the presence of different hydraulic conductivity zones Conclusion This study represents the first exploration of the dynamic behavior of pore pressure, particularly water mass oscillations (WMO), within the rock mass under the operational conditions of ...

  • Valorization of non-balanced coal reserves in Serbia for underground coal gasification

    David Petrović, Lazar Kričak, Milanka Negovanović, Stefan Milanović, Jovan Marković, Nikola Simić, Ljubisav Stamenić (2019)
    In the name of a better and safer energy future, it is our responsibility to focus our knowledge and activities to save on imported liquid and gas fossil fuels, as well as coal on which energy security of Serbia is based. The rationalization in the use of available energy resources certainly positively affects economy and the environment of a country. This paper indicates motivations for the application of the underground coal gasification process, as well as surface gasification for ...
    ugalj, gasifikacija, zaštita životne sredine, skladištenje, solarna
    ... performed on the industrial UCG complex in Iran, and it was generally positively assessed 18, 19]. In the case of the possible UCG on Ćirikovac deposit, for the considered framed ex- ploitation field (size 75 x 50 m, layer thickness 6 m), the amount of gas that would be obtained is O=29-·10% mž ...
    ... chemical industry, for fractional distillation of crude oil refining, to obtain hydrogen, etfc. The energy gas from the proposed UCG at Ćirikovac deposit near TPP Kostolac, or similar deposits for other TPP, is extremely convenient because UCG method mainly utilizes Petrović, D. T., et al.: Valorization ...
    ... necessary onsite clean energy generation option, which could deliver on- site power for running dedicated loads of the UCG process equipment. Ćirikovac deposit near TPP Kostolac is considered to house a dedicated photovoltaic power plant that can completely power the proposed UCG plant. In addition to ...

  • A contribution to the knowledge of facial diversity of Badenian sediments in the Belgrade area

    Filip Anđelković, Dejan Radivojević (2018)
    baden, Beograd, facije, facijalna raznovrsnost, sedimenti
    ... l facies in the Belgrade area, Višnjica clays and  Konjarnik schlier, but they have limited exposure and were inaccessible at the time of field exploration.  The following localities have been visited: Kalemegdan, Tašmajdan, Višnjica, Rakovica. The focus was on  the poorly exposed „Leitha  limestone ...

  • Regionalno-geološke karakteristike miocenskih sedimenata na prostoru severnog Banata

    Dejan N. Radivojević (2014-12-30)
    Predmet doktorske disertacije predstavljalo je rešavanje strukturno‐stratigrafskihodnosa miocenskih sedimenata na prostoru severnog Banata. U cilju regionalnogsagledavanja, korišćeni su svi raspoloživi geofizički i geološki podaci sa širegistražnog područja, odnosno iz celog Panonskog basena i susednog orogena. Osimklasičnih metoda primenjene su i savremene metode seizmostratigrafije,tektonostratigrafije i riftne sekvencione stratigrafije. Primenjene metode omogućilesu izradu modela progradacije ivice šelfa za ceo Panonski basen, modela uzajamnihveza između basena i geodinamičkog modela jugoistočnog oboda basena.Jezero Panon je većim delom zapunjeno prilivom sedimenata paleo‐Dunavom saseverozapada, odnosno ...
    Centralni Paratetis, Panonski basen, miocen, jezero Panon,seizmostratigrafija, sekvenciona stratigrafija, paleogeografija, geodinamika
    ... Forschungsinstitut Sencke‐ nberg, v. 237, p. 47–67. Rose, P. R., 1992, Chance of success and its use in petroleum exploration. In: Steinmetz, R. (Ed.), The business of petroleum exploration. American Association of Petroleum Geologists Treatise of Petroleum Geology, Handbook of Petroleum ...
    ... stakla, karbonata i kriptokristalastih do mikrozrnastih minerala (kvarca, feldspata, kaolinita, sericita) nastalih devitrifikacijom vulkanskog stakla. Kristaloklaste čine kvarc, plagioklasi, biotit, hlorit i metalični minerali. Litoklasti su približno iste veličine, različitog oblika i ...
    ... stena i minerala, fragmenata i ljušturica fosila. Od odlomaka stena, najčešći su fragmenti granitoida i kristalastih škriljaca, dok se znatno ređe sreću delovi milonita, krečnjaka, alevrolita, metapeščara, kvarcita, kiselih vulkanita, gnajseva i sitnozrnih peščara. Među odlomcima minerala javljaju ...

  • Models of Determining the Parameters of Rock Mass Oscillation Equation with Experimental and Mass Blastings

    Suzana Lutovac, Branko Gluščević, Rade Tokalić, Jelena Majstorović, Čedomir Beljić (2018)
    ... municipality of Lajkovac. It is situated on the left bank of the Kolubara River in Central Serbia, and belongs to Kolubara District. The limestone deposit Nepričava consists of rock masses of sedimentary origin, not entirely homogeneous in composition. Limestones are the most important lithological members ...
    ... members from both economic aspect and aspect of mining exploitation technology. Physical and mechanical properties of limestone in the deposit are spatially very uneven. Examination of physical and mechanical properties of the working environment, submitted the following results: • Compressive strength ...
    ... suction 0.08%–0.23% 4.2.2. Blasting Method Measurements of seismic shocks at the Nepričava open pit were performed during blasting, conducted for deposit exploitation [18]. Three blasting operations were performed. Balkanit 60/1000 and Videksil 65/2000 (Videks Company, Sofia, Bulgaria) were used as ...

  • High-resolution sequence stratigraphy of carbonates - theory and examples

    Jelena Stefanović, Dejan Radivojević (2020)
    Циљ рада је да кроз теоријски аспект и примере примене представи секвенциону стратиграфију високе резолуције карбонатних седимената. У том смислу први део се односи на појам и значење високе резолуције у секвенционој стратиграфији. Од временских и просторних скала које одговарају сеизмичким профилима у последњих двадесет година метода је нашла примену на скалама које одговарају бушотинским подацима или изданцима. Као најпогоднији седименти за овај тип истраживања су се показали карбонати јер су осетљиви на еустатичке промене, а основе секвенционе стратиграфије ...
    изданак, системска група, јура-креда, карбонатна платформа, плитководна средина
    ... depositional sequence as a basic unit for stratigraphic analysis. In: In: Payton, C.E. (Ed.), Seismic Stratigraphy - Applications to Hydrocarbon Exploration, vol. 26. American Association of Petroleum Geologists, Memoir, pp.53–62. POMONI-PAPAIOANNOU, F. and KARAKITSIOS, V., 2016. Sedimentary facies ...
    ... of sea level, part: relative changes of sea level from coastal onlap. In: PAYTON, C.E. (Ed.), Seismic Stratigraphy Applications to Hydrocarbon Exploration. Memoir, vol. 26. American Association of Petroleum Geologists, pp. 63–81. VAN WAGONER, J.C., POSAMENTIER, H.W., MITCHUM, R.M., VAIL, P.R., SARG ...
    ... а непосредно изнад граничне површи долази до промене у минералном саставу, као и дуж саме површи где може доћи до повећања концентрације тешких минерала. Секвенца се независно од размере увек састоји од системских група и депозиционих система, а секвенциона стратиграфија високе резолуције подразумева ...

  • 2D geoelectrical resistivity tomography application at the former city waste dump "Ada Huja": Eco-geological problem

    Branislav Sretenović, Filip Arnaut, Ivana Vasiljević, Vesna Cvetkov (2019)
    2D inversion, geoelectrical method, Wenner array, ecology, Ada Huja
    ... structures serve as economically efficient and time-saving process (with regards to other subsurface surveying methods). The main limitation of exploration drilling is a high cost (drills, required staff etc.), and in this case (communal waste dump) the lack of utilization of geological logic in ...
    ... little use, except to provide the information about the impermeable marl base. Geotechnical profile (Figure 2), constructed using data from 22 exploration drill holes is an improved source of information about the subsurface. It is noticeable that there exists a surface embankment layer (sand, gravel ...
    ... note that the Republic of Serbia does not have a waste dump site for the disposal of environmental threatening and industrial waste where asbestos, mineral wool, waste with adsorption properties and ionic masses belong (Environmental protection secretariat, 2008). Because of this kind of assertion ...

  • Definition of groundwater genesis and circulation conditions of the complex hydrogeological karst system Mlava–Belosavac–Belosavac-2 (eastern Serbia)

    Ljiljana Vasić, Saša Milanović, Zoran Stevanović, Laszlo Palcsu (2020)
    Geochemistry and Petrology

  • Integrative GHG Assessment in Oil and Gas Industry

    Aleksandar Mirković, Marija Živković, Stevan Đenadić, Darja Lubarda, Chinedu Anyanwa (2023)
    Reducing greenhouse gas emissions is one of the main targets of national strategies in European countries. As a main contributor to emissions, the energy sector is recognized as the most promising to apply measures and actions aimed to decrease GHG emissions. The Oil and Gas industry as a significant contributor to global greenhouse gas emissions is facing a growing need for estimating, mitigating, and reducing the impact of their operations on the atmosphere to stay competitive in a newly ...
    energetska tranzicija, gasovi staklene baste, industrija, nafta i gas
    ... flaring and minimize the environmental impact of oil production. II METHODOLOGY There arc various sources of GHG emissions, including the exploration and exploitation of energy sources, conversion of primary cnergy sources into usable forms in refineries and power plants, transmission and di ...
    ... non-stationary combustion. Fugitive Emissions Fugitive emission refers to intentional or unintentional release of GHG that occurs during thce exploration, production, processing, and delivery of fossil fuciIs to users. Methane leaks being the major source of GHG emissions under this category. Commonly ...