Претрага
1575 items
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Poreklo asocijacije Ni, Ag i Sn minerala u polimetaličnom ležištu Rudnik
Rudnomikroskopska, SEM-EDS i LA-ICP-MS ispitivanja rudne mineralizacije iz Pb-Zn-Cu-(Ag) ležišta Rudnik, ukazala su na lokalno prisustvo specifične asocijacije minerala nikla, srebra i kalaja, deponovane u tektonskoj breči, arsenopiritsko-pirotinskim, piritsko-pirotinsko-arsenopiritskim i kvarcno-sulfidnim žicama u harcburgitima. U tektonskoj breči deponovan je polimineralni sulfidni agregat kojeg čine pirotin (50), galenit, sfalerit i halkopirit. Arsenopiritsko-pirotinske žice odlikuje dezintegrisani agregat arsenopirita cementovan sa pirotinom. U piritsko-pirotinsko-arsenopiritskim žicama masivni pirit (50%) prorasta sa arsenopiritom i cementovan je polimineralnim agregatom pirotina, galenita i sfalerita. Minerali nikla, srebra ...Stefan Petrović, Aleksandar Pačevski, Viktor Bertrandson Erlandson, Rade Jelenković. "Poreklo asocijacije Ni, Ag i Sn minerala u polimetaličnom ležištu Rudnik" in 18. Kongres geologa Srbije "Geologija rešava probleme", Divčibare, 01-04 jun 2022., Srpsko geološko društvo (2022)
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A contribution to the knowledge of facial diversity of Badenian sediments in the Belgrade area
Filip Anđelković, Dejan Radivojević (2018)... Измењено: 2023-10-14 04:22:11 A contribution to the knowledge of facial diversity of Badenian sediments in the Belgrade area Filip Anđelković, Dejan Radivojević Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] A contribution to the knowledge of facial ...
... one smaller bioherm (picture 1). The type locality of the Tašmajdan limestones is Tašmajdan, which once was a quarry from which these limestones have been exploited as a ‐‐‐‐. Amphistegina limestones are exposed on several outcrops in the area of Višnjica and Slanci. Cerithium ...
... contain numerous Ostrea shells and represent a basal series. According to Anđelković M. and Anđelković J., they mark the second Badenian transgression. CONCLUSION Because of its facial diversity, the Belgrade area can be considered as a second type locality of the Badenian stage. T ...Filip Anđelković, Dejan Radivojević. "A contribution to the knowledge of facial diversity of Badenian sediments in the Belgrade area" in 17th Serbian Geological Congress, Vrnjačka Banja, 17-20 maj 2018, Srpsko geološko društvo (2018)
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Long-term rockslope monitoring and rockfall prediction
Miloš Marjanović, Biljana Abolmasov, Marko Pejić, Jelka Krušić. "Long-term rockslope monitoring and rockfall prediction" in Proceedings of 3rd European Regional Conference of IAEG/ Athens/ Greece/ 6-10 October 2021, International Association for Engineering Geology and the Environment (2021)
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Strain partitioning around an indenter during oroclinal bending: kinematics of the Circum-Moesian fault system of the Carpatho-Balkanides
Nemanja Krstekanić, Liviu Matenco, Uroš Stojadinović, Ernst Willingshofer, Marinko Toljić, Daan Tamminga (2021)... of Regional Geology, Belgrade, Serbia The Carpatho-Balkanides of south-eastern Europe is a double 180° curved orogenic system. It iscomprised of a foreland-convex orocline, situated in the north and east and a backarc-convexorocline situated in the south and west. The southern orocline of the Carpa ...
... mega-unit and coeval docking against the Moesian indenter. Thisoroclinal bending was associated with a Paleocene-Eocene orogen-parallel extension thatexhumed the Danubian nappes of the South Carpathians and with a large late Oligocene – middleMiocene Circum-Moesian fault system that affected the orogenic system ...
... margins. This fault system is composed ofvarious segments that have different and contrasting types of kinematics, which often formedcoevally, indicating a large degree of strain partitioning during oroclinal bending. It includes thecurved Cerna and Timok faults that cumulate up to 100 km of dextral offset ...Nemanja Krstekanić, Liviu Matenco, Uroš Stojadinović, Ernst Willingshofer, Marinko Toljić, Daan Tamminga. "Strain partitioning around an indenter during oroclinal bending: kinematics of the Circum-Moesian fault system of the Carpatho-Balkanides" in EGU General Assembly 2021, Vienna, Austria, 19.-30.4.2021., EGU (2021)
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Stepen metamorfizma metaklastita rudnika
Vanja Ćuk (2024)Zadatak ovog rada je bio, potvrda saznanja da se na planini Rudnik dogodio kontaktni metamorfizam gornjokrednih sedimentnih stena i da se ispita intenzitet kontakto-metamorfnih promena. Posle kraćeg opisa geografskog položaja, pregleda ranijih istraživanja i geologije šireg područja, usmerena je pažnja na petrološka ispitivanja metaklastita i na kontaktno-metamorfne facije. Usled stvaranja različitih vulkanogenih facija odnosno usled vulkanskih erupcija, delovanjem zagrejane magme (lave) ili zagrejanih fluida, došlo je do kontaktnog metamorfizma, na granici oligocen-miocen i do stvaranja različitih metamorfnih stena, a ...Vanja Ćuk. Stepen metamorfizma metaklastita rudnika, 2024
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Numerical simulation of the Late Jurassic closure of the Vardar Tethys
... simulations (previous interim results reported in EGU2020-5919). The aim of our numerical study is to test the hypothesis that a single eastward subduction in theJurassic is a valid explanation for the occurrence of three major, presently observed geologicalentities that are left behind after the closure ...
... performed by solving a set of partialdifferential equations: the continuity equation, the Navier-Stokes equations and the temperatureequation. To this end we used I2VIS thermo-mechanical code which utilizes marker in cellapproach with finite difference discretization of equations on a staggered grid [Gerya ...
... at amid-oceanic ridge. Intraoceanic subduction is initiated along the ridge by assigning a weak zonebeneath the ridge. Time-dependent boundary conditions for velocity are imposed on thesimulation in order to model a transient spreading period. The change of sign in plate velocities isfound to be useful ...Nikola Stanković, Vesna Cvetkov, Vladica Cvetković. "Numerical simulation of the Late Jurassic closure of the Vardar Tethys" in EGU General Assembly 2021, Copernicus GmbH (2021). https://doi.org/10.5194/egusphere-egu21-9893
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2D Numerical Simulation of Intraoceanic Subduction during the Upper Jurassic Closure of the Vardar Tethys
... simulations (previous interim results reported in EGU2020-5919). The aim of our numerical study is to test the hypothesis that a single eastward subduction in theJurassic is a valid explanation for the occurrence of three major, presently observed geologicalentities that are left behind after the closure ...
... performed by solving a set of partialdifferential equations: the continuity equation, the Navier-Stokes equations and the temperatureequation. To this end we used I2VIS thermo-mechanical code which utilizes marker in cellapproach with finite difference discretization of equations on a staggered grid [Gerya ...
... at amid-oceanic ridge. Intraoceanic subduction is initiated along the ridge by assigning a weak zonebeneath the ridge. Time-dependent boundary conditions for velocity are imposed on thesimulation in order to model a transient spreading period. The change of sign in plate velocities isfound to be useful ...Nikola Stanković, Vesna Cvetkov, Vladica Cvetković. "2D Numerical Simulation of Intraoceanic Subduction during the Upper Jurassic Closure of the Vardar Tethys" in EGU General Assembly 2020, Copernicus GmbH (2020). https://doi.org/10.5194/egusphere-egu2020-5919
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Sinteza i strukturna karakterizacija novih cezijumskih i kalijumskih silikata sa elementima retkih zemalja
Predrag Z. Dabić (2022)Predmet i ciljevi naučnog istraživanja ove doktorske disertacije su sinteza i strukturna karakterizacija novih cezijumskih i kalijumskih silikata sa elementima retkih zemalja. Istraživanja su izvedena u okviru sistema SiO2–REE2O3–XF, gde REE predstavlja trovalentni katjon elementa retkih zemalja (Sc, Y, Sm, Eu, Gd, Ho, Er, Tm, Yb, Lu), dok X predstavlja jednovalentni katjon alkalnih metala (K, Cs). Rad na disertaciji bio je fokusiran na sintezu monokristala, određivanje kristalnih struktura, kao i na kristalografsko i kristalohemijsko ispitivanje sintetisanih monokristala. Monokristali su sintetisani ...alkalni silikati elemenata retkih zemalja, kristalna struktura, sinteza metodom fluksa, rendgenska difrakcija na monokristalu, elementi retkih zemaljaPredrag Z. Dabić. Sinteza i strukturna karakterizacija novih cezijumskih i kalijumskih silikata sa elementima retkih zemalja, Beograd : P. Dabić, 2022
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Fizičko-hemijsko raspadanje krečnjaka ugrađenih u objekte Beogradske tvrđave i mogućnost konsolidacije
Maja Z. Franković (2022)Beogradska tvrđava, spomenik kulture od izuzetnog značaja za Republiku Srbiju, izgrađena je od krečnjaka badenske starosti. Njihova litološka heterogenost, u sadejstvu sa uticajima okruženja, rezultira visokim intenzitetima raspadanja. Korelacijom intrinzičnih sa ekstrinzičnim faktorima, definisani su fizičko-hemijski procesi raspadanja ugrađenih mikrofacija krečnjaka. Aplikacijom neorganskih konsolidanata na karbonatnoj bazi (nano-kreča i Ca-acetoacetata) i alkoksisilana, te korelacijom fizičko-mehaničkih svojstava pre i nakon tretmana, ispitana je efektivnost u pogledu zaustavljanja dekohezije krečnjaka. Određivanjem petroloških, tehničkih svojstava i mapiranjem formi raspadanja Mračne kapije kao ...krečnjaci, forme i intenziteti degradacije, fizičko-hemijsko raspadanje, konsolidacija, nano-kreč, Ca-acetoacetat, alkoksisilani, Mračna kapijaMaja Z. Franković. Fizičko-hemijsko raspadanje krečnjaka ugrađenih u objekte Beogradske tvrđave i mogućnost konsolidacije, Beograd : M. Franković, 2022
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The Content of Toxic Metals in Agricultural Produce near a Coal Mine: Case Study KCB in Lazarevac, Serbia
Праћење и анализа концентрација токсичних метала (олово и кадмијум) у земљишту и усевима указују на то да пољопривредно земљиште у Србији углавном није загађено, а квалитет земљишта је природно добар. Због тога су таква земљишта погодна за органску пољопривреду. Сви уочени случајеви контаминације токсичним металима су само локалне природе, а резултат су ђубрива и пестицида, комуналног отпада, издувних гасова, оближњих производних објеката, топионица, рудника, јаловишта итд. Локације овог типа морају бити редовно прати и процењује статус земљишта и усева. ...Ana Koprivica, Čedomir Beljić, Boris Vakanjac, Vesna Ristić Vakanjac, Marina Čokorilo Ilić. "The Content of Toxic Metals in Agricultural Produce near a Coal Mine: Case Study KCB in Lazarevac, Serbia" in Minerals, MDPI AG (2018). https://doi.org/10.3390/min8040131
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Геомеханички мониторинг у површинској експлоатацији
... Srbije – juče, danas,sutra“ , autora N.Đajića. Ove monografije je finansiralo Ministarstvo za nauku i tehnološki razvoj a preko Akademije. Kako su ukupno dobijena sredstva i potrošena, a što je po pravilniku o finansijama, ova sredstva nisu prikazivana u finansijskom izveštaju. c) Akademija je ...
... privrednika i 30 članova AINS. U prvom delu foruma bilo je 5 uvodnih izlaganja, a u drugom delu prezentacije su držali predstavnici (uglavnom direktori) 7 privrednih kompanija. 4. PARTNERSKA SARADNJA a) Ministrstvo rudarstva i energetike. Održan je sastanak naših predstavnika ...
... Predsedništva od 9.03.2011.) IZVEŠTAJ O RADU AKADEMIJE INŽENJERSKIH NAUKA SRBIJE 17.03.2010. – 16.03.2011. 1. PRAVNA ORGANIZACIJA a) Izvšena je doregistracija u Agenciji za privredne registre . Bilo je mukotrpno, moralo se ići na nekoliko iteracija. b) Usvojen je novi Pravilnik ...Владимир Чебашек, Александар Милутиновић, Бојан Димитријевић, Небојша Гојковић. "Геомеханички мониторинг у површинској експлоатацији" in Минерално-сировински комплекс Србије данас: изазови и раскршћа, Београд : Академија инжењерских наука Србије; Рударско-геолошки факултет Универзитета у Београду; Привредна комора Србије (2010)
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Tectonothermal evolution of an asymmetric extensional system: the Juhor Mts in Central Serbia (Northern Serbomacedonian massif)
Miloš Radonjić, Uroš Stojadinović, Elco Luijendijk, Dejan Radivojević, Željko Golubović, Nikola Vuković (2018)... of the basin. 253 ЛИТЕРАТУРА / REFERENCES Antić, M., Peytcheva, I., von Quadt, A., Kounov, A., Trivić, B., Serafimovski, T., Tasev, G., Gerdjikov, I., Wetzel, A., 2016a. Pre‐Alpine evolution of a segment of the North‐Gondwanan margin: Geochronological and geochemical evidence ...
... unit is Variscan and that its magmatism had a long Paleozoic evolution (Antić et al., 2016a). South of our study area, a coupled kinematic and thermo‐ chronological study conducted in the Jastrebac Mts has inferred a Late Cretaceous extensional de‐ tachment creati ...
... from the central Serbo‐Macedonian Massif. Gondwana Res. 36, 523–544. Antić, M.D., Kounov, A., Trivić, B., Wetzel, A., Peytcheva, I., Quadt, A., 2016b. Alpine thermal events in the central Serbo‐Macedonian Massif (southeastern Serbia). Int. J. Earth Sci. 105:1485. http://dx.doi.org/10.10 ...Miloš Radonjić, Uroš Stojadinović, Elco Luijendijk, Dejan Radivojević, Željko Golubović, Nikola Vuković. "Tectonothermal evolution of an asymmetric extensional system: the Juhor Mts in Central Serbia (Northern Serbomacedonian massif)" in 17th Serbian Geological Congress, Vrnjačka Banja, 17-20 maj 2018, Srpsko geološko društvo (2018)
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Using gravity data to define structural correlation affecting the formation of Neogene basins
A gravity survey can help to define the structural correlation in the study area. The structures that have influenced the development of Neogene basins can be defined using gravity data. By applying mathematical transformations to gravity data, the geological structures (faults, nappes, etc.) that impacted the formation of Neogene basins can be defined. We have taken the part of the Dinarides as the test region. The paper presents the results obtained using the procedure residual, vertical gradient, and total ...Snežana Ignjatović, Ivana Vasiljević, Branisav Sretković, Milanka Negovanović. "Using gravity data to define structural correlation affecting the formation of Neogene basins" in The 54th International October Conference on Mining and Metallurgy, Bor Lake, Serbia, 18-21 October 2023, Bor : University of Belgrade, Technical Faculty in Bor (2023)
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Development and Application of Methodology for Quantification of Overbreaks in Hard Rock Tunnel Construction
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 constructionZoran Berisavljević, Dragoljub Bajić, Vojkan Jovičić. "Development and Application of Methodology for Quantification of Overbreaks in Hard Rock Tunnel Construction" in Applied Sciences, MDPI (2023). https://doi.org/10.3390/app13031379
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Efficiency and lifetime of medium voltage transformers
Snežana Aleksandrović, Vesna Damnjanović. "Efficiency and lifetime of medium voltage transformers" in XVI International Scientific – Professional Symposium, INFOTEH, Jahorina, 22. mart - 24. mart 2017., Istočno Sarajevo : Elektrotehnički fakultet, Univerzitet u Istočnom Sarajevu (2017)
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Approach to operational mine planning: Case study Tamnava West
... s. Coal quality control between the mine site and the utility plant is a complex problem owing to the variable nature of coal properties (heating value, sulfur, ash), even within the same coal seam. In order to ensure a normal and efficient operation of the power plants fed with coal it is ...
... The case study is conducted on open pit Tamnava West field. Tamnava West is a part of Kolubara coal basin, and it operates under governance of Electric Power Industry of Serbia (EPS). Currently, Tamnava West is a biggest coal open pit in Serbia, with capacity of 13 million tons of coal per ...
... interpolation, and for assay data Inverse Distance, power 2. A total of 25 coal sub-seam plies, 46 partings (14 sandstone and 32 clay), clay basement, interburden sandstone and overburden river sediments have been modeled within a stratigraphic section up to 98 m thick. The reason for so detail ...Dejan Stevanović, Mirjana Banković, Milica Pešić Georgiadis, Ranka Stanković. "Approach to operational mine planning: Case study Tamnava West" in Tehnika, Beograd : Savez inženjera i tehničara Srbije (2014). https://doi.org/10.5937/tehnika1406952S
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Depth estimation of archeological objects using Euler 3D deconvolution of magnetic data
Vesna Cvetkov, Ilija Vasiljević, Mirko Petković. "Depth estimation of archeological objects using Euler 3D deconvolution of magnetic data" in 5. Hrvatski geološki kongres. Abstract Book 5th Croatian Geological Congress, Hrvatski geološki institut (2015)
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Simulacija isticanja odabranih karstnih vrela pirotske kotline
Saša Milanović, Branislav Petrović, Vesna Ristić Vakanjac, Ljiljana Vasić, Veljko Marinović, Petar Vojnović (2022)Analiza recesije, autokorelaciona i kroskorelaciona analiza vremenskih serija padavina i isticanja podzemnih voda karstnih vrela Krupac i Gradište (Stara planina, JI Srbija) izvršena je radi formiranja stohastičkog autoregresivno-krosregresivnog modela (ARCR) i kratkoročne prognoze dnevnih vrednosti izdašnosti. Usled postojanja heterogenosti i anizotropnosti karstne izdani veoma je komplikovano i zahtevno odrediti prostornu distribuciju podzemnih voda u okviru karstnog hidrogeološkog sistema, te je primenljivost determinističkih modela minimizirana. Stoga je upotreba stohastičkog modela u ovom slučaju svrsishodnija. Autokorelogram izdašnosti vrela Krupac pokazao je ...Saša Milanović, Branislav Petrović, Vesna Ristić Vakanjac, Ljiljana Vasić, Veljko Marinović, Petar Vojnović. "Simulacija isticanja odabranih karstnih vrela pirotske kotline" in Vodoprivreda, Српско друштво за одводњавање и наводњавање, Београд, Академија инжењерских наука Србије (2022)
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Reconstruction of the Tethys’ Waning in the Balkans
Dejan Prelević, Kristijan Sokol, Ana Mladenović, Violeta Gajić, Vladica Cvetković. "Reconstruction of the Tethys’ Waning in the Balkans" in 16th Alpine Workshop, European Geosciences Union (2024)
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Soft computing-based modelling of flotation processes - a review
Jovanović Ivana, Miljanović Igor (2015)Jovanović Ivana, Miljanović Igor. "Soft computing-based modelling of flotation processes - a review" in Minerals Engineering 84 (201, Amsterdam:Elsevier (2015): 34-63. https://doi.org/10.1016/j.mineng.2015.09.020