Претрага

Упит dcterms_subject_txt:Mineral deposit exploration

363 items

  • Razvoj ARCGIS geobaze površinskog kopa korišćenjem UML CASE alata

    Aleksandra Tomašević, Ljiljana Kolonja, Ivan Obradović, Ranka Stanković, Olivera Kitanović (2012)
    ... Tehnologija. 4 Figure 2 depicts the class diagram IstrazniProstor, which models the exploration works (boreholes and observed lithology, interpretation of stratigraphy, results of performed analyses, as well as deposit contour). The central position in this diagram is taken by the class Busotine, defined ...
    ... ion on the right. The background of the map is set to a spatially referenced orthophoto photograph, followed by polygonal objects (pit contour, deposit contour, public and private objects, lakes), with the line objects (roads, rivers, channels, conveyor belts, railroads, electricity transmission network) ...
    ... Hence, further research in this area will focus on extension of the OpmGIS system with thematic classes related to production, integration with deposit modeling tools, and 3D extension. In the era of web publication of data in all areas, we plan to create a web GIS portal with contents from the OpmGIS ...

  • Public participation as an element of a mineral deposit safeguarding system – international experiences

    Alicja Kot-Niewiadomska, Vladimir Simić, Michael Tost, Linda Wårell (2022)
    angažovanje zajednice, javne konsultacije, administrativne procedure, zaštita ležišta mineralnih sirovina, društvena licenca za rad

  • The Rift Sequence Stratigraphy of the Itebej Field (Pannonian Basin, Serbia)

    Saša Ivanišević, Jelena Radišić, Ivana Isić, Dejan Radivojević (2019)
    ... marly limestones were deposited. The immediate post-rift system tract sediments represented by the Lake Pannon deep-water hemipelagic marls were deposit during the Pannonian sensu lato. The hemipelagic marls deposited in the Srpska Crnja Depression are the main source rock for Itebej field, while the ...
    ... - dejan.radivojevic@rgf.bg.ac.rs – University of Belgrade, Faculty of Mining and Geology, Department of Regional Geology, Belgrade, Serbia The exploration area of Itebej field is settled in the vicinity of the eastern edge of the Pannonian Basin (Central Paratethys). The rift sequence stratigraphy ...

  • Approach to operational mine planning: Case study Tamnava West

    Dejan Stevanović, Mirjana Banković, Milica Pešić Georgiadis, Ranka Stanković (2014)
    ... sufficient number of geological exploration data, necessary for production planning and operational management of coal quality, Figure 2. Figure 2. Portion of the pit Tamnava West All the boreholes were drilled vertically, but the regional dip of the Tamnava West deposit in average is 3°, the ...
    ... Geological modeling in Minex requires a lot of expertise and detailed knowledge of the deposit characteristics, but also is the practical solution for developing, verification, analysis and updating of deposit model. Since Minex is not specially developed for continuous mining technology operational ...
    ... represent as real as possible every lithological member within minimum mineable coal thickness and minimum removable parting. The Tamnava West deposit is characterized by geology that is of moderate complexity, both with respect to stratigraphy and structure. The geology was originally defined ...

  • Development of an integrated model for open-pit-mine discontinuous haulage system optimization

    Miodrag Čelebić, Dragoljub Bajić, Sanja Bajić, Mirjana Banković, Duško Torbica, Aleksej Milošević , Dejan Stevanović (2024)
    equipment selection, mine mechanization, expert judgment, linguistic variables, MCDM, FAHP

  • Improving efficiency of thermal power plants through mine coal quality planning and control

    Mirjana Banković, Dejan Stevanović, Milica Pešić, Aleksandra Tomašević, Ljiljana Kolonja (2018)
    Главни циљ контроле квалитета угља у рудницима лигнита је снабдевање термоелектрана угљем чији квалитет мора да се креће унутар одређених квалитативних ограничења. Карактеристике угља могу да утичу на ефикасност, поузданост и расположивост како котла тако и јединица за контролу емисије. У овом раду аутори су презентовали интегрисану симулацију рударског процеса као нови приступ у истраживању променљивости калоричне вредности угља приликом експлоатације комплексног лежишта лигнита. Резултати таквог приступа омогућавају драгоцен увид у перформансе континуалног рударског система у смислу контроле променљивости ...
    mine planning, variability of coal quality, simulation, coal blending

  • 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)

  • Cutting Resistance Laboratory Testing Methodology for Underwater Coal Mining

    Vladimir Čebašek, Veljko Rupar, Stevan Đenadić, Filip Miletić (2021)
    Geology,Geotechnical Engineering and Engineering Geology
    ... facies. Its evolution is continuously present at the entire exploration area. Furthermore, the Kovin coal deposit belongs to the upper Miocene or Pontian stratigraphic unit, actually, the younger part—upper Pontian [22]. In this part of the deposit, the substratum section of the Miocene part are Pontian ...
    ... most used for determination of the cutting resistance of the material to be excavated. 2. Coal Mining in Underwater Pit “Kovin” Exploration work in the coal and gravel deposit area began in 1976, while coal exploita- tion began in 1995. Coal is mined from the bottom of the lake connected to the Danube ...
    ... (depth) of mining, i.e., cutting. 3. Geological Settings Coal and gravel deposit, “Kovin”, represents the northern part of the unique sedi- mentation area Kostolac-Kovin, which is separated by the Danube [21]. Gravel deposit stratigraphically belongs to the Pleistocene and it was developed in the riverbed ...

  • Coal homogenization stockyard sizing “Tamnava – Zapad” case study

    Božo Kolonja, Dinko Knežević, Ranka Stanković, Dejan Stevanović, Detlef Trummer (2016)
    ... level of the pit (mine), for safety reasons that range should be decreased, particularly considering the level of data confidence and exploration of the deposit. This increases the number of stacking layers. In the example shown in Figure 1 it can be seen that for a range of 300 kJ/kg the number ...
    ... results obtained by analysis of a certain number of samples from the entire deposit. Not considering the representativeness of the simulated data there is always suspicion that variations in certain parts of the deposit are much greater, meaning that the selected number of layers will not be sufficient ...
    ... stockyard sizing at the "Tamnava - Zapad" pit. The strata stacking method was selected. Approximately 50 layers need to be stacked for the entire deposit; however, depending on quality the number of layers will be variable, from 16 to over 150. The number of piles was also considered and stockyards ...

  • Trace elements and garnet formation in a distal skarn zone: a case study of the Rudnik deposit, Central Serbia

    Bojan Kostić, Pavle Tančić, Natalija Batoćanin (2024)
    geohemija granata, retke zemlje, fluidne inkluzije, skarnovsko ležište Rudnik

  • 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
    ... from Santanghu Coalfield, Xinjiang.– Jour­ nal of Geochemical Exploration, 186, 225–234. doi: 10.1016/j.gexplo.2017.12.006 ŽIVOTIĆ, D., ERCEGOVAC, M. & MILIVOJEVIĆ, J. (2005): Petrographic Composi­ tion and Genesis of Coal From the Kovin Deposit.– 14th Congress of Geologists of Serbia and Montenegro, 18–20 ...
    ... haematite, and limonite). In general, mineral matter in the matrix coal consists of illite/ smectite and quartz, while xylite-rich coals, apart from illite/smectite, have a higher content of sulphates and Fe-oxide/hydroxide minerals. The lignite from the Kovin deposit is enriched in As, Cd, Co, Cr, Cu ...
    ... (RUPPERT et al., 1996). Nickel G eo lo g ia C ro a ti ca Geologia Croatica 72/166 in seam II of the Kovin deposit shows no specific affinity, indi­ cating both organic and mineral associations. Lead mainly occurs as sulphide (galena) or associated with sulphide minerals (FIN­ KELMAN, 1994), as ...

  • 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
    ... examination of the chemical composition of the ash (THOMAS, 2007; KIM et al., 2005), the mineral ash composi- tion (ŽIVOTIĆ et al., 2015), the mineral ash and coal composition (WARD & FRENCH, 2005) and chemical-mineral ash composi- tion (VASSILEV et al., 2013; VASSILEV et al., 2014; VASSILEV et al., 2003; ...
    ... many papers of narrower scope that establish correlations between the chemical, mineral and physical properties of fly ash (VASSILEV & VAS- SILEVA, 2007). Based on the most common characteristics (chemical and mineral composition) of ash and slag from the Ko- lubara and Kostolac coal basins, the research ...
    ... Available online October 20, 2016 Keywords: fly ash, slag, physical composition, chemical composition, mineral composition, X-ray diffraction method cal properties, chemical and mineral compositions of the fly ash from thermal power plants (PP) „Nikola Tesla A” (NT A), „Nikola Tesla B” (NT B) ...

  • 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
    ... org/10.1093/petrology/egg087 Somarin A.K. 2004: Garnet composition as an indicator of Cu mine- ralization: Evidence from skarn deposit of NW Iran. Journal of Geochemical Exploration 81, 47–57. https://doi.org/10.1016/ S0375-6742(03)00212-7 Srećković-Batoćanin D., Vasković N., Milutinović S., Ilić V. & ...
    ... using natural and synthetic mineral standards including albite (Al, Si), wollastonite (Ca), titanium monoxide (Ti), chromium oxide (Cr), and manganese (Mn) and iron (Fe) metal. Backscattered (BSE) images were used to reveal zoning and possibly inclu- sions of another mineral phase within the garnet and ...
    ... follow Ca concentrations if the reaction for garnet growth involves epidote mineral consumption. Thus, the sharp decrease of grossular component from core to rim in garnet SN-310 could reflect epidote consumption from the mineral assemblage. Stable Ca concentration values in Fe-rich and Fe-poor garnet ...

  • 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

  • Просторни положај лежишта угља Ђурђевик: геофизичко-геолошки модел

    Синиша Арсеновић (2019)
    Лежиште угља Ђурђевик представља источни део Бановићког угљеног басена и припада северној страни босанске офиолитске зоне унутрашњих Динарида у чији састав улазе стене палеозојске, мезозојске и кенозојске старости. Језерска доњомиоценска угљоносна серија изграђена је од лапоровито-глиновитих седимената са једним слојем мрког угља. Дебљина угљеног слоја креће се у интервалу од 5 до 25 m са генералним правцем пружања СЗ - ЈИ и падом према ЈЗ. У зони обухваћеноj геофизичким истраживањима изражена je пострудна тектоника у виду раседа мањег и ...
    рефлективна сеизмика, 3Д геофизичко-геолошки модел, угаљ, синтетички модел, моделирање
    ... for coal exploration. ASEG Extended Abstracts, 10.1071/ASEG2004ab066 Hosken, J. W. J., 1988. Ricker wavelets in their various guises. First Break 6(1), 24-33. Chuster, G., 2017. Seisimic Inversion. Society of Exploration Geophsicists. Clarke, A.M., 1976. Why modern exploration has little to ...
    ... analysis techniques in hydrocarbon exploration. Doi: 10.1016/B978-0-12-420023-4.00002-2, ISBN: 9780124200234. Palmer, D., 1987. High resolution seismic reflection surveys for coal. Geoexploration 24, 397-408. Pesowski, M. S., Larson, R. K., 2000. Seismic exploration methods applied to Potash mining: ...
    ... seismic resolution, Seissmic stratigraphy II – An integrated approach to hydrocarbon exploration. AAPG Memoir 39, 1-10. Sheriff, R., 2002. Encyclopedic Dictionary of Applied Geophysics. Society of Exploration Geophysicists, ISBN (print): 978-1-56080-118-4. ISBN (online): 978-1-56080- 296-9. ...

  • BEYOND 2020 - Geology explorations and open pit activities affectation in reclamation designing in Kolubara Coal Mines (KCM) Serbia, new considerations

    Bojan Dimitrijević, Bogoljub Vučković, Radmila Gaćina (2023)
    Geology explorations in KCM runs from 1936. year up to these days and still ongoing. Results in >7,200 drill holes with ≈600,000 m of core drilling and gave lignite ore resources of > 4,1Bt, which 1,15Bt are excavated since 1986. of XIX up to early years of XXI century. For further mining operations in open pits stay 1,5Bt of lignite. Under waste heaps are ≈80 km2, additional 85 km2 should be filled. All of that masses/areas were, are ...

  • Molecular and Isotope Composition of Biomarkers in Immature Oil Shale and its Liquid Pyrolysis Products (Open and Closed System)

    Gordana Gajica, Aleksandra Šajnovic, Jan Schwarzbauer, Aleksandar Kostić, Branimir Jovančićević, Ksenija Stojanović (2021)
    The molecular and isotopic composition of biomarkers in initial bitumen isolated from raw immature oil shale samples from the Lower Miocene Aleksinac Basin (Serbia) and liquid products (LPs) obtained by pyrolysis in open (OS) and closed systems (CS) are studied. The influence of pyrolysis type and variations of kerogen type on biomarkers composition and their isotopic signatures in LPs is determined. The molecular composition of the LPs from the OS pyrolysis is very similar to those in initial bitumen, independently ...
    ... assigned as D13 and D16 (huminite reflectance of 0.41 % Rr) from the Lower Miocene Aleksinac Basin, which is the largest and richest oil shale deposit in Serbia. The selected samples showed high content of total organic carbon (TOC > 13 wt. %), high hydrocarbon generation potential (Hydrogen Index ...
    ... Nature 279, 405– 408. Peters, K.E., Walters, C.C., Moldowan, J.M., 2005. The Biomarker Guide, Vol. 2: Biomarkers and Isotopes in Petroleum Exploration and Earth History. Cambridge University Press, Cambridge. ...

  • Composition of organic matter and thermal maturity of Mesozoic and Cenozoic sedimentary rocks in East Herzegovina (External Dinarides, Bosnia and Herzegovina)

    Nikoleta Aleksić, Aleksandar Kostić, Miloš Radonjić (2021)
    This paper presents the first data on the organic matter and thermal maturity of Mesozoic and Cenozoic sedimentary rocks in the East Herzegovina region of the External Dinarides. Representative, organic-rich samples from outcropping sedimentary rocks of different ages in the area (Triassic to Neogene) were selected and analysed. The organic matter was studied by Rock-Eval pyrolysis and under the microscope in reflected non-polarized light and incident blue light. The results obtained show the presence of different types of organic ...
    nafta i gas, Rock-Eval, refleksija vitrinita, maceral, termička zrelost
    ... Geochemistry for Exploration and Production. Elsevier, Amsterdam, 342 pp. Dimitrijević, M., Karamata, S., Sikošek, B. & Veselinović, D. (eds), 1971. Geological Map of the Yugoslavia 1:500000. Institute for Geological and Mining Exploration and Investigation of Nuclear and Other Mineral Raw Materials ...
    ... Geochemistry for Exploration and Production. Elsevier, Amsterdam, 342 pp. Dimitrijevic, M., Karamata, S., Sikoek, B. & Veselinovic, D. (eds), 1971. Geological Map of the Yugoslavia 1:500000. Institute for Geological and Mining Exploration and Investigation of Nuclear and Other Mineral Raw Materials, Belgrade ...
    ... Palinkaš, 2004; Vlahović et al., 2005). �ere has been interest for petroleum exploration in the area for a long time and several oil companies undertook modest geological and geochemical prospecting. �e main exploration risk in the area, in terms of the petroleum sys- tem, is uncertainty about the ...

  • Determination of Mechanical Properties of Altered Dacite by Laboratory Methods

    Veljko Rupar, Vladimir Čebašek, Vladimir Milisavljević, Dejan Stevanović, Nikola Živanović (2021)
    This paper presents a methodology for determining the uniaxial and triaxial compressive strength of heterogeneous material composed of dacite (D) and altered dacite (AD). A zone of gradual transition from altered dacite to dacite was observed in the rock mass. The mechanical properties of the rock material in that zone were determined by laboratory tests of composite samples that consisted of rock material discs. However, the functional dependence on the strength parameter alteration of the rock material (UCS, intact ...
    Geology, Geotechnical Engineering, Engineering Geology
    ... the dacite. Minerals 2021, 11, 813 3 of 19 Figure 1. Lithological column of the exploration borehole. Test samples D and AD undoubtedly show the same structural-textural character- istics, as well as the mineral composition. Only the intensities of secondary alterations, calcification, limonitization ...
    ... characteristics, the most important of which are: the participation of the main mineral elements [12], mineral grain size [13], arrangement of mineral grains and their shape [14], mutual contact between individual mineral grains [15], and level of alteration [16]. In the analyzed samples D and AD, it ...
    ... Materials Dacite deposit, “Ćeramide,” belongs to the Rudnik–Ljig volcanic area, within which three larger masses of effusive rocks have been isolated. However, Sarmatian quartzite- dacite effusive with accompanying pyroclastics predominates within the volcanic area [11]. Dacite deposit is of simple geological ...

  • Mineral safeguarding in Serbia

    Vladimir Simić, Dragana Životić, Zoran Miladinović (2022)
    mineral safeguarding, mineral resources, Serbia, mineral policy