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Упит dcterms_subject_txt:Water Science and Technology,Aquatic Science,Geography

2391 items

  • Micro- to nanoscale textures of gold in arsenopyrite and scorodite from the As-Au-Bi assemblage of Drenjak locality (Serbia)

    Ivana Jelić, Janez Zavašnik, Marina Lazarov, Alena Zdravković, Sabina Kovač, Jovica Stojanović, Aleksandar Pačevski (2023)
    Arsenopyrite and pyrite are important carriers of Au that is present in the form of microscopic and “invisible” gold. Such gold can be expected to be released upon the process of oxidation of these sulfides. In studied gold mineralization at Drenjak, related to the granitoids of the Oligocene-Miocene Kopaonik Ore District, the main arsenopyrite-pyrite-(bismuthinite) sulfide assemblage was formed in the quartz bodies and partly replaced by scorodite (FeAsO4·2H2O) and Bi-arsenate. With only up to 5 ppm of gold recorded ...
    Economic Geology, Geochemistry and Petrology, Geology

  • Transboundary groundwater resources of Serbia - present status and future needs for sustainable management

    Veljko Marinović, Branislav Petrović, Zoran Stevanović (2021)
    Republic of Serbia is located at the crossroads of Southeast and Central Europe and belongs to the Central Balkans. With its 88,360 km2, Serbia is one of the larger countries of the Balkan Peninsula. It borders 8 countries and has at least one transboundary aquifer (TBA) with each of them. According to evaluation conducted for UNECE in 2008, Serbia has a total of 17 TBAs, out of which 15 are shared with one neighboring country, while two aquifers are shared with two or three ...
    međugranične izdani, Srbija, monitoring podzemnih voda, upravljanje podzemnim vodama

  • Influence of geological substrate on runoff formation, a case study: small river catchments in southeastern Serbia of similar size and with comparable pluviographic regimes

    Vesna Ristić Vakanjac, Veljko Marinović, Nikola Milovanović, Marina Čokorilo Ilić, Boris Vakanjac, Jugoslav Nikolić, Saša Bakrač (2022)
    We are witnessing climate change that is happening both, globally and, at the regionally - or local level. As a result of expected climate change in Southeast Europe, in the first place are the distributions of precipitation within the year (frequent extreme events are present) and then the increase in temperature, which already has a significant impact on evapotranspiration and runoff formed in a particular catchment area. In addition to climatic factors, the geological structure, i.e. the hydrogeological characteristics ...

  • Replica of the “Great Triangle Gold Nugget” Belonging to Belgrade University Collection, Gilded or Not?

    Alena Zdravković, Maja Milošević, Ivana Jelić (2021)
    ... cm and height of about 27.5 cm. In order to enrich the information of gold replica as an exceptional exhibit from the 19th century and to determine its value and significance, it was important to examine the composition of its golden metallic colour surface. Since the gold colour and shine ...
    ... MILOŠEVIĆ, M.1 & JELIĆ, I.2 1 Faculty of Mining and Geology, University of Belgrade, Belgrade, Serbia 2 Natural History Museum, Belgrade, Serbia E-mail: alena.zdravkovic@rgf.bg.ac.rs Introduction The Collection of Rocks and Minerals, Faculty of Mining and Geology, the University of Belgrade in Serbia ...
    ... information of the number of the replica made, and the type and manner of material that was used for covering. Result and conclusion The data obtained by EDS analysis show that the gypsum model is covered with gold leaf, which was expected according to the macroscopic characteristic of ...

  • The shear strength evaluation of rough and infilled joints and its indications for stability of rock cutting in schist rock mass

    Dušan Berisavljević, Zoran Berisavljević, Svetlana Melentijević (2022)
    Construction of E75 highway section through Grdelica gorge was one of the most demanding projects realized in recent Serbian history. The alignment approximately 25 km long consists of several tens of bridges, two tunnels, three galleries and cuts with total length of 6 km. The alignment passes through highly anisotropic Palaeozoic schist rock formation of different weathering grades. This study focuses on shear strength properties of discontinuities, which are found to be the critical feature contributing to the occurrence ...
    Diskontinuitet, nelinearni kriterijum loma, anizotropija, hiperbolična anvelopa

  • Overview of the hydrogeological investigations of recently discovered world class deposits in Serbia

    Nebojša Atanacković, Vladimir Živanović, Veselin Dragišić, Sava Magazinović (2019)
    Europe industry has growing concerns on availability of the raw materials. To address this challenge, the European Commission has created a list of critical raw materials for the EU, launched EIT Raw Materials initiative, and continuously support research projects (like INTRAW, UNEXMIN etc.) with the aim of reducing the dependency and meeting growing demands. In the last 15 years Serbia is experiencing new bust in geological exploration of mineral deposits. Currently 167 exploration licenses are active, covering approximately 6000 ...
    Groundwater, Raw materials, Lithium, Mining, Field hydrogeology

  • Cretaceous ultrapotassic magmatism from the Sava-Vardar Zone of the Balkans

    Kristijan Sokol, Dejan Prelević, Rolf Romer, Milica Božović, Paul van den Bogaard, Elitsa Stefanova, Bojan Kostić, Nenad Čokulov (2020)
    Late Cretaceous global plate reorganization associated with the inception of counterclockwise rotation of Africa relative to Europe initiated in the Balkan region small-volume magmatism of diverse geochemical signature along the enigmatic Sava-Vardar Zone. We study a Late Cretaceous lamprophyric sill in Ripanj village near Belgrade to constrain this magmatic episode. The lamprophyre is characterized by high contents of Na, P, Fe and Al, and low contents of K, Ca and Mg. Its original nature (Na, K, Ca and Mg) is ...
    Sava-Vardar zona, metasomatizam omotača, Kredne ultrakalijske stene, Durbachite-vaugnerite serija

  • Characterization of bituminite in Kimmeridge Clay by confocal laser scanning and atomic force microscopy

    Paul C. Hackley, Jolanta Kus, João Graciano Mendonça Filho, Andrew D. Czaja, Angeles G. Borrego, Dragana Životić, Brett J. Valentine, Javin J. Hatcheries (2022)
    This work investigates bituminite (amorphous sedimentary organic matter) in Upper Jurassic Kimmeridge Clay source rock via confocal laser scanning microscopy (CLSM) and atomic force microscopy (AFM). These petrographic tools were used to provide better understanding of the nature of bituminite, which has been historically difficult to identify and differentiate from similar organic matter types in source rocks. As part of an International Committee for Coal and Organic Petrology (ICCP) working group, an immature (0.42% vitrinite reflectance), organic-rich (44.1 wt% ...
    Битуминит, Kонфокална ласерска скенирајућа микроскопија, Mикроскопија атомских сила, Органска петрологија, Термичка зрелост

  • Potencijalnost tercijarnih magmatskih kompleksa Vardarske zone Srbije sa aspekta arhitektonskog građevinskog kamena

    Lidija M. Kurešević (2014-01-22)
    U sastavu Vardarske zone, jedne od tektonski najsloženijih oblasti Balkanskogpoluostrva, u čijem domenu se odvijalo otvaranje i zatvaranje okeanskih prostora isubdukcija koja je dovela do intenzivne magmatske aktivnosti pretežno tokom tercijara,danas se nalazi veći broj magmatskih kompleksa.U ovoj disertaciji su obrađene geološke karakteristike trinaest izabranih magmatskihkompleksa Vardarske zone tercijarne starosti, i laboratorijski određena mineraloškopetrografskasvojstva stena u njihovom sastavu i fizičko-mehanička svojstva kamenaznačajna za utvrđivanje mogućnosti njihove primene za dobijanje blokovaarhitektonskog građevinskog kamena iz kojih se dobijaju ploče za oblaganjegrađevinskih ...
    Arhitektonski građevinski kamen, magmatske stene, Vardarska zona, Srbija
    ... Geoinstituta, Beograd. Ashmole I. and Motloung M., 2008a: Dimension stone: The latest trends in exploration and production technology.- Surface mining. The Southern African Institute of Mining and Metallurgy, p. 35-70. Ashmole I. and Motloung M., 2008b: Reclamation and environmental management in dimension ...
    ... Dinarides and the Vardar zone – the eternal conundrum.- Geology and Metallogeny of the Dinarides and the Vardar zone (eds. S. Karamata and S. Janković) The Academy of Sciences and Arts of the Republic of Srpska, p. 5-13. Banja Luka-Serbian Sarajevo. Dimitrijević M., 2001: Dinarides and the Vardar ...
    ... Milovanović D., 2000b: A correlation of ophiolitic belts and oceanic realms of the Vardar zone and the Dinarides. In: Geology and Metallogeny of the Dinarides and the Vardar zone (eds. S. Karamata and S. Janković) The Academy of Sciences and Arts of the Republic of Srpska, 191-194. Banja Luka-Serbian ...

  • Potencijalnost tercijarnih magmatskih kompleksa Vardarske zone Srbije sa aspekta arhitektonskog građevinskog kamena

    Lidija M. Kurešević (2014-01-22)
    U sastavu Vardarske zone, jedne od tektonski najsloženijih oblasti Balkanskogpoluostrva, u čijem domenu se odvijalo otvaranje i zatvaranje okeanskih prostora isubdukcija koja je dovela do intenzivne magmatske aktivnosti pretežno tokom tercijara,danas se nalazi veći broj magmatskih kompleksa.U ovoj disertaciji su obrađene geološke karakteristike trinaest izabranih magmatskihkompleksa Vardarske zone tercijarne starosti, i laboratorijski određena mineraloškopetrografskasvojstva stena u njihovom sastavu i fizičko-mehanička svojstva kamenaznačajna za utvrđivanje mogućnosti njihove primene za dobijanje blokovaarhitektonskog građevinskog kamena iz kojih se dobijaju ploče za oblaganjegrađevinskih ...
    Arhitektonski građevinski kamen, magmatske stene, Vardarska zona, Srbija
    ... Geoinstituta, Beograd. Ashmole I. and Motloung M., 2008a: Dimension stone: The latest trends in exploration and production technology.- Surface mining. The Southern African Institute of Mining and Metallurgy, p. 35-70. Ashmole I. and Motloung M., 2008b: Reclamation and environmental management in dimension ...
    ... Dinarides and the Vardar zone – the eternal conundrum.- Geology and Metallogeny of the Dinarides and the Vardar zone (eds. S. Karamata and S. Janković) The Academy of Sciences and Arts of the Republic of Srpska, p. 5-13. Banja Luka-Serbian Sarajevo. Dimitrijević M., 2001: Dinarides and the Vardar ...
    ... Milovanović D., 2000b: A correlation of ophiolitic belts and oceanic realms of the Vardar zone and the Dinarides. In: Geology and Metallogeny of the Dinarides and the Vardar zone (eds. S. Karamata and S. Janković) The Academy of Sciences and Arts of the Republic of Srpska, 191-194. Banja Luka-Serbian ...

  • Development and Application of Methodology for Quantification of Overbreaks in Hard Rock Tunnel Construction

    Zoran Berisavljević, Dragoljub Bajić, Vojkan Jovičić (2023)
    A methodology for determining overbreaks in hard rock tunnel construction using the drill-and-blast technique is presented in this paper. The methodology was developed for and applied to crystalline medium- to thick-bedded limestone, but it can be used in any jointed hard rock mass. Overbreaks are inevitable in hard rock tunnelling in a low-confinement environment (shallow tunnels up to several hundred meters deep) as a result of wedge failures along unfavourably oriented discontinuities caused by blasting. It is widely accepted ...
    hard rock, drill-and-blast, geological overbreak, technological overbreak, stability criterion, discontinuity orientation, tunnel construction

  • Granitoids associated with East Vardar ophiolites (Serbia, F.Y.R. of Macedonia and northern Greece): origin, evolution and geodynamic significance inferred from major and trace element data and Sr-Nd-Pb isotopes.

    Šarić Kristina, Cvetković Vladica, Romer, R.L., Christofides, G., Koroneos, A. (2009)

  • The Flow Conditions in the Epikarst Zone of a Karst Aquifer. Case Study: Suva planina Mt., East Serbia

    Branislav Petrović (2023)
    The epikarst as a part of the karst aquifer represents a complex point of contact and mixing of unconsolidated material from the terrain surface, carbonate rocks altered by “corrosive” water, flora and fauna (and remains of), which is partially saturated with groundwater. Significant amounts of (plant accessible) water, and other solutes and particles, can be stored in this zone for extended periods of time. Thus, attenuation or biochemical processes could start in this layer and change quality of infiltrated ...
    epikarst, tracer test, shallow cave, Suva Planina Mt., Serbia

  • Pannonian Basin, Pannonian Basin System and Pannonian realm - three different concepts

    Dejan Radivojević (2019)
    Centralni Paratetis, neogen, Panonski basen, Sistem panonskog basena, Panonska oblast
    ... orogen represented by the Carpathians, the Dinarides and the Alps. This term is used in the structural-tectonic sense and refers to a space consisted of numerous connected depressions and highs of different depth/height and of the diachronic extension and different stretching factor. |п the geological ...
    ... most commonly used terms аге the Pannonian Basin, the Pannonian Basin System and the Pannonian realm. However, each of these three terms represents a different concept and does not imply the same areal extinction and the time of sediment deposition. Regarding the Pannonian realm, it covers a space ...
    ... 04:22:18 Pannonian Basin, Pannonian Basin System and Pannonian realm - three different concepts Dejan Radivojević Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Pannonian Basin, Pannonian Basin System and Pannonian realm - three different concepts | Dejan ...

  • Synthesis of MnCo2O4 nanoparticles as modifiers for simultaneous determination of Pb(II) and Cd(II)

    Vesna Antunović, Marija Ilić, Rada Baošić, Dijana Jelić, Aleksandar Lolić (2019)
    The porous spinel oxide nanoparticles, MnCo2O4, were synthesized by citrate gel combustion technique. Morphology, crystallinity and Co/Mn content of modified electrode was characterized and determined by Fourier transform infra-red spectroscopy (FT-IR), scanning electron microscopy (SEM), energy dispersive spectrometry (EDS), X-ray diffraction pattern analysis (XRD), simultaneous thermogravimetry and differential thermal analysis (TG/DTA). Nanoparticles were used for modification of glassy carbon electrode (GCE) and new sensor was applied for simultaneous determination of Pb(II) and Cd(II) ions in water samples with the ...
    MnCo2O4 nanočestice, modifikatori, određivanje Pb (II) and Cd(II)

  • Age And Mode of the Middle Miocene Marine Flooding of the Pannonian Basin—Constraints from Central Serbia

    Oleg Mandic, Ljupko Rundić, Stjepan Ćorić, Ðurðica Pezelj, Dörte Theobalt, Karin Sant, Wout Krijgsman (2019)
    The timing and mode of the marine flooding of the southern margin of the Pannonian basin in SE Europe is still a matter of debate. In central Serbia, integrated bio-magnetostratigraphic data and quantified high-resolution records are completely missing. Here, we provide paleoenvironmental and paleoecological constraints from the Slanci section located near Belgrade that has an excellent preservation of micro-fauna and flora, i.e., planktonic and benthic foraminifera and calcareous nannoplankton. We integrate their quantified records with sedimentological, natural gamma radioactivity ...
    Srednji miocen, morska transgresija, Panonski basen, područje Beograda

  • The Flow Conditions in the Epikarst Zone of a Karst Aquifer. Case Study: Suva planina Mt., East Serbia

    Branislav Petrović (2022)
    The epikarst as a part of the karst aquifer represents a complex point of contact and mixing of unconsolidated material from the terrain surface, carbonate rocks altered by “corrosive” water, flora and fauna (and remains of), which is partially saturated with groundwater. Recharge of karst aquifers, usually, occurs via the unsaturated zone which uppermost part could be epikarst zone. Significant amounts of (plant accessible) water, and other solutes and particles, can be stored in this zone for extended periods ...
    epikarst, tracer test, shallow cave, Suva Planina Mt., Serbia

  • Imputing missing data using grey system theory and the biplot method to forecast groundwater levels and yields

    Jelena Ratković, Dušan Polomčić, Zoran Gligorić, Dragoljub Bajić (2022)
    Groundwater management is one of today’s important tasks. It has become necessary to seek out increasingly reliable methods to conserve groundwater resources. Dependable forecasting of the amounts of groundwater that can be abstracted in a sustainable manner requires longterm monitoring of the groundwater regime (rate of abstraction and groundwater levels). Monitoring of the groundwater source for the town of Bečej, Serbia had been disrupted for multiple years. The objective of the paper is to assess the possibility of reinterpreting ...
    upravljanje podzemnim vodama, izvorište podzemnih voda, prognoziranje

  • Characterization of Natural Clay from Bogovina (Serbia) and Possible Utilization in Sorption of the Herbicides

    Lazar Kaluđerović, Zorica Tomić, Rada Đurović-Pejčev, Maja Milošević (2021)
    ... Faculty of Mining and Geology archives faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs Call for contributions Clean water and sanitation & Life on land Linking soil mineralogy to soil properties and functions ...
    ... Bogovina (Serbia) and Possible Utilization in Sorption of the Herbicides Lazar Kaluđerović, Zorica Tomić, Rada Đurović-Pejčev, Maja Milošević Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Characterization of Natural Clay from Bogovina (Serbia) and Possible Utilization ...
    ... BOGOVINA (SERBIA) AND POSSIBLE UTILIZATION IN SORPTION OF THE HERBICIDES Lazar M. Kaluđerović* 1, Zorica P. Tomić1, Rada Đurović-Pejčev2, Maja Milošević3 1Department for Soil Management, Faculty of Agriculture/ University of Belgrade, 2Laboratory of Chemistry, Institute of pesticides and environmental ...

  • Balance between tectonics and sedimentation during geodynamic evolution of the Adria-Europe convergence zone in central Serbia

    Uroš Stojadinović, Nemanja Krstekanić, Bojan Kostić, Tamara Bogdanović (2021)
    ... Attribution 4.0 License. Balance between tectonics and sedimentation during geodynamicevolution of the Adria-Europe convergence zone in central Serbia Uros Stojadinovic1, Nemanja Krstekanić1,2, Bojan Kostić1, and Tamara Bogdanović3 1Faculty of Mining and Geology, University of Belgrade, Belgrade, Serbia ...
    ... tectonics and sedimentation during geodynamic evolution of the Adria-Europe convergence zone in central Serbia Uroš Stojadinović, Nemanja Krstekanić, Bojan Kostić, Tamara Bogdanović Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Balance between tectonics and se ...
    ... facies indicate three cycles of deposition during Early Cretaceous–Cenomanian,Turonian–Santonian, and Campanian-Maastrichtian. Lower Cretaceous–Cenomanian depositionwas associated with regional contraction and characterized by the clastic-carbonatic cyclic shelfand slope deposits (i.e., the “para-flysch”) ...