Претрага
168 items
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Determining seismic hazard in slowly deforming region: Can we gather enough information from karst caves?
Ana Mladenović, Jelena Ćalić (2021)Methods to determine seismic hazard in any region vary depending on the regional seismicity, but can be roughly grouped into two main groups: one based on probabilistic methods that use data about known seismicity in the region, and another, which is based on data related to the faulting processes and determination of seismically active faults. Both groups of methods are relatively good for seismically active regions. However, in regions of low seismic activity and slow deformations, there is neither ...Ana Mladenović, Jelena Ćalić. "Determining seismic hazard in slowly deforming region: Can we gather enough information from karst caves?" in EGU General Assembly 2021, European Geosciences Union (2021). https://doi.org/10.5194/egusphere-egu21-8723
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GNSS Time Series as a Tool for Seismic Activity Analysis Related to Infrastructure Utilities
Sanja Tucikešić, Ankica Milinković, Branko Božić, Ivana Vasiljević, Mladen Slijepčević . "GNSS Time Series as a Tool for Seismic Activity Analysis Related to Infrastructure Utilities" in Contributions to International Conferences on Engineering Surveying. Springer Proceedings in Earth and Environmental Sciences, Dubrovnik, Croatia, October 22-23, 2020, Springer, Cham (2021). https://doi.org/10.1007/978-3-030-51953-7_21
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Determining seismic hazard in slowly deforming region: Can we gather enough information from karst caves?
Ана Младеновић, Јелена Ћалић (2021)... multiply activated during their geological history. This activity led to theformation of faults that are favorably oriented in respect to the main thrust system. It is suspectedthat some of these fault systems are also active in recent times. Relatively complex geological structure and existence of a ...Ана Младеновић, Јелена Ћалић. "Determining seismic hazard in slowly deforming region: Can we gather enough information from karst caves?" in EGU General Assembly 2021, European Geosciences Union (2021). https://doi.org/10.5194/egusphere-egu21-8723
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Back-arc underplating provided crustal accretion affecting topography and sedimentation in the Adria microplate
Paolo Mancinelli, Vittorio Scisciani, Cristina Pauselli, Gérard M. Stampfli, Fabio Speranza, Ivana Vasiljević (2021)Supported by evidence of deep crustal sources for the observed magnetic anomalies in Central Italy and by outcropping gabbros in the Croatian archipelago, we model the observed gravity and magnetic anomalies in the Central Adriatic Sea and surroundings. We suggest that the major magnetic anomalies in the area are related to a wide underplating and propose that this volume represents the first stage of the back-arc Adria continental breakup in Early Permian times. During the Palaeotethys-Adria collision, underplating has ...Paolo Mancinelli, Vittorio Scisciani, Cristina Pauselli, Gérard M. Stampfli, Fabio Speranza, Ivana Vasiljević. "Back-arc underplating provided crustal accretion affecting topography and sedimentation in the Adria microplate" in Marine and Petroleum Geology, Elsevier Ltd. (2021). https://doi.org/10.1016/j.marpetgeo.2021.105470
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Транспортни систем за руду на површинском копу Бувач
Никола Аџић (2024)У општем делу овог рада ће бити наведени утоварно-транспортни системи, њихова подела и основни елементи. У оквиру тога ће бити детаљније објашњени сви појединачни делови ових система као што су багери, камиони, дробилице и транспортери са траком. Даље ће бити наведени програмски пакети који се користе за прорачун ових система Talpac који се користи за прорачун дисконтинуалног транспорта и Helix који се користи за прорачун транспортера са траком. У специјалном делу су наведени параметри које мора да испуни пројектовани ...... Torque Start-up Factor Loaded 100 % Takeup Pulley Belt Tension 51.49 kN Drive Torque Start-up Factor Empty 100 % Takeup Mass 10500 kg Running Starting Braking Drive Fully Empty Fully Empty Fully Empty Number Loaded Belt Loaded Belt Loaded Belt Drive No. 1 Drive PuleyNo. 6 Lagging Type Rubber ...
... T2 25 Sep 2024 11:13 Tension Calculations - Summary Belt Sag Page 41/2 Project Zavrsni rad Client Katedra Project No. PreparedBy · Nikola Conveyor No. T2 Design Date 17 September 2024 Allowable Belt Sag % Running 15 % Allowable Belt Sag % Start / Stop 5 % Takeup Mass 10500 kg Running Starting ...
... 34.31 34.31 39.02 78.69 5.55 | _24.10 5.55 24.10 Idler Spacing m 1.20 Belt Sag % 0.21 0.21 0.21 0.21 0.19 0.09 1.31 0.3 1.31 0.3 2 Hopper 35.50 35.50 35.50 35.50| | 40.30 80.71 6.21 25.11 6.21 25.11 Idler Spacing m 0.40 Belt Sag % 0.21 0.07 0.21 0.21 0.19 0.03 1.22 0.1 1.22 0.1 3 Int.Pt 37.17 ...Никола Аџић. Транспортни систем за руду на површинском копу Бувач, 2024
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Balance between tectonics and sedimentation during geodynamic evolution of the Adria-Europe convergence zone in central Serbia
... The eductionthat followed break-off of the Neotethys slab beneath the Dinarides triggered Oligocene–Mioceneextension which reactivated the inherited thrust contacts as extensional detachments along theentire Dinarides margin. The extension exhumed the lower Adria plate and additionallyfragmented and deformed ...Uroš Stojadinović, Nemanja Krstekanić, Bojan Kostić, Tamara Bogdanović. "Balance between tectonics and sedimentation during geodynamic evolution of the Adria-Europe convergence zone in central Serbia" in EGU General Assembly 2021, Vienna, Austria, 19.-30.4.2021., EGU (2021)
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Is the Sava-Vardar zone a remnant of an Upper Cretaceous ocen? Pro et contra
... Apuseni Banat-Timok- Srednogoric (ABTS) magmatic and metallogenetic belt must have originated by an active (i.e., Upper Cretaceous) oceanic subduction towards the European continent. This argument rclies upon the fact that the ABTS belt exhibits " a number of petrological and metallogenetic char ...
... Cretaceous ophiolite. On the other hand, the indirect evidence remains, and further investigations. must „address the possibility that the ABTS belt could have originated in a post-collisional setting. ACKNOWLEDGEMENT This research is supported by funds provided by SRI based on Contract no. ...Vladica Cvetković, Dejan Prelević, Ana Mladenović. "Is the Sava-Vardar zone a remnant of an Upper Cretaceous ocen? Pro et contra" in Fifth Congress of Geologists of the Republic of North Macedonia, Ohrid, 2024, Macedonian Geological Society (2024)
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Paleomagnetic study of Jurassic-Early Cretaceus sediments in the Danibicum of Eastern Serbia
... Carpathians (Romania) southward in Eastern Serbia and continues in western Bulgaria. This unit is composed of Arjana, Coşuştea, Upper and Lower Danubian thrust complexes. Our area of investigation belongs to the Upper Danubian on the Serbian side of the River Danube, but, it has a continuation in Romania ...Vesna Cvetkov, Emo Marton, Vesna Lesić, Dragana Tomić. "Paleomagnetic study of Jurassic-Early Cretaceus sediments in the Danibicum of Eastern Serbia" in I Kongres geologa u Bosni i Hercegovini sa međunarodnim učešćem, Udruženje geologa u Bosni i Hercegovini (2015)
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Debris-flow Susceptibility Assessment in Flow-R: Ribnica River Case Study
Debris flows are among the most dangerous erosional geohazards due to the fast rate of movement and long runout zones. Even though the initiation can be triggered in mountainous areas, inhabited and with steep slopes, their propagation and deposition can endanger not only buildings and infrastructure in the urbanized areas, but also threaten human lives. As these initiation areas usually represent unattainable terrains with rapid vegetation cover development, field observations and aerial photo analysis become high-demanding tasks. Consequently, medium-to-regional ...Ksenija Micić, Miloš Marjanović, Biljana Abolmasov . "Debris-flow Susceptibility Assessment in Flow-R: Ribnica River Case Study" in Proceeding of the 6th Regional Symposium on Landslides in the Adriatic-Balkan Region, ReSyLAB 2024, University of Belgrade, Faculty of Mining and Geology (2024). https://doi.org/https://doi.org/10.18485/resylab.2024.6
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Geochemical evaluation of dolostone deposits in Montenegro: Implications for potential industrial applications
Darko Bozovic, Vladimir Simic, Dragan Radulovic, Slobodan Radusinovic, Vesna Matovic, Anja Terzic (2024)This study presents a unique model for assessing the dependability of continuous parts of combined systems in open-pit mining through the application of fuzzy logic. Continuous sub-systems as part of the combined system of coal exploitation in surface mines have the basic function of ensuring safe operation, high capacity with high reliability, and low costs. These subsystems are usually part of the thermal power plant’s coal supply system and ensure stable fuel supply. The model integrates various independent partial ...примарне сировине, минералогија, физичко-механичка својства, технолошка својства, наука о материјалимаDarko Bozovic, Vladimir Simic, Dragan Radulovic, Slobodan Radusinovic, Vesna Matovic, Anja Terzic. "Geochemical evaluation of dolostone deposits in Montenegro: Implications for potential industrial applications" in Science of Sintering, Bor, August 2024, National Library of Serbia (2024). https://doi.org/10.2298/SOS240701029B
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Multiple-Criteria Decision-Making in Mine Development Planning
Sanja Bajić (2023)The Borska Reka ore deposit is an experimental location where developed methodologies have been applied. It is the largest ore body within the Bor mining complex, which has been the subject of numerous studies and analyses for more than three decades. The paper focuses on the application of FAHP and the VIKOR method to address ranking of alternatives and select the optimal mining method by means of fuzzy multicriteria optimization.Sanja Bajić. "Multiple-Criteria Decision-Making in Mine Development Planning" in Proceedings of the 5th International Underground Excavations Symposium, 5-6-7 June 2023, Istanbul, Topkapi : Dinç Ofset Mat. Rek. San. ve Tic. Ltd. Şti. (2023)
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Tektonske i litostratigrafske karakteristike šireg područja Grivske (Zapadna Srbija)
Nikola Otašević (2024)U ovom radu predstavljene su osnovne geološke karakteristike šireg područja Grivske. U litostratigrafskom pogledu na ovom prostoru prisutne su paleozojske, mezozojske i kenozojske sedimentne, magmatske i metamorfne stene. Tvorevine karbona su predstavljene semimeta-morfisanim tvorevinama.Tvorevine trijaske starosti su predstavljene slojevitim i masivnim krečnjacima, dok su tvorevine jure predstavljeni produktima ofiolitskog melanža. Takođe, prisutne su i tvorevine senona koje su predstavljene masivnim krečnjacima. U neogenoj sukcesiji dominiraju klastiti miocena, dok su u kvartaru zastupljeni različiti tipovi fluvijalnih, deluvijalnih i deluvijalno-proluvijalnih tvorevina. ...Nikola Otašević. Tektonske i litostratigrafske karakteristike šireg područja Grivske (Zapadna Srbija), 2024
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Fault type assessment based on vertical gravity gradient anomalies – advantages and limitations
The type of dip-slip faults can be assessed based on the analysis of vertical gravity gradients. Theoretically, just a simple comparation of the gradient extreme values can give us an answer whether the fault is normal or reverse (thrust). Practical application of this method is far more complicated and the results depend on a number of parameters, such as a complexity of geological setting, the quality of gravity data, dip angle and displacement of the fault, density contrast, etc. ...... gradients. Theoretically, just a simple comparation of the gradient extreme values can give us an answer Whether the fault is normal or reverse (thrust). Practical application of this method is far more complicated and the results depend on a number of parameters, such as a complexity of geological ...Ivana Vasiljević, Snežana Ignjatović, Branislav Sretković. "Fault type assessment based on vertical gravity gradient anomalies – advantages and limitations" in Vth Congress of the Geologists of the Republic of North Macedonia, Ohrid, Republic of North Macedonia, September 27-28, 2024, Macedonian Geological Society (2024)
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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 ...Kristijan Sokol, Dejan Prelević, Rolf Romer, Milica Božović, Paul van den Bogaard, Elitsa Stefanova, Bojan Kostić, Nenad Čokulov. "Cretaceous ultrapotassic magmatism from the Sava-Vardar Zone of the Balkans" in Lithos (2020)
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Chemo-probe into the mantle origin of the NW Anatolia Eocene to Miocene volcanic rocks: Implications for the role of, crustal accretion, subduction, slab roll-back and slab break-off processes in genesis of post-collisional magmatism
Post-collisional Cenozoic magmatic activity in NW Anatolia produced widespread volcanism across the region. In the Biga Peninsula, in the west, medium-K calc-alkaline to ultra-K rocks with orogenic geochemical signature were emplaced at ~43–15 Ma (Biga orogenic volcanic rocks; BOVR). Volcanic activity in the Central Sakarya region, to the east, is mainly restricted to ~53–38Ma, but also continued during the Early Miocene with small basaltic extrusives (Sakarya orogenic volcanic rocks; SOVR). This study presents a new set of geochemical data ...E. Yalçın Ersoy, Martin R. Palmer, Ş. Can Genç, Dejan Prelević, Cüneyt Akal, İbrahim Uysal. "Chemo-probe into the mantle origin of the NW Anatolia Eocene to Miocene volcanic rocks: Implications for the role of, crustal accretion, subduction, slab roll-back and slab break-off processes in genesis of post-collisional magmatism" in Lithos (2017). https://doi.org/10.1016/j.lithos.2017.07.006
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Punctuated, episodic magmatism and mineralization of the Rogozna skarn-hosted Au-Zn-Pb-Cu deposits revealed through high-precision U-Pb zircon geochronology
The subvolcanic regions of magmatic centers are commonly associated with alteration, mineralization, and economic ore deposits, however the duration and frequency of mineralizing pulses within the overall lifespan of these centers can be poorly defined. Therefore, models for the formation of mineral systems require more highprecision geochronology data to refine their evolutionary models. Rogozna Mountain and its eponymous magmatic complex, located in SW Serbia, hosts multiple base metal deposits associated with variable rock types and structural expressions and serves as a natural laboratory to ...Skarnovska mineralizacija, Magmatsko-hidrothermalni sistemi, Subvulcanske intruzije, geohronologija na cirkonima, CA-ID-TIMSSean P. Gaynor, Milorad D. Antić, Vladica Cvetković, Kristina Šarić, Urs Schaltegger. "Punctuated, episodic magmatism and mineralization of the Rogozna skarn-hosted Au-Zn-Pb-Cu deposits revealed through high-precision U-Pb zircon geochronology" in Ore Geology Reviews, Elsevier (2023). https://doi.org/https://doi.org/10.1016/j.oregeorev.2023.105775
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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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Cutting Resistance Laboratory Testing Methodology for Underwater Coal Mining
... conditions strongly influence the excavator productivity and performance [3]. The digging force, F, has three components (tangential, lateral, and forward thrust) [4–7], perpendicular to each other (Figure 1). The tangential force is by far the most significant component, and it determines the torque of the ...
... conditions strongly influence the excavator productivity and performance [3]. The digging force, F, has three components (tangential, lateral, and forward thrust) [4-7], perpendicular to each other (Figure 1). The tangential force is by far the most significant component, and it determines the torque of the ...
... l area of the cut sickle of bucket wheel. Č Đ ć ć Đ Č Đ ć ć Figure 1. Digging force components (FT—tangential, FL—lateral, and FFT—forward thrust). In the past, the relationship between digging material and specific digging resistance for wheel operation has been analyzed both theoretically ...Vladimir Čebašek, Veljko Rupar, Stevan Đenadić, Filip Miletić. "Cutting Resistance Laboratory Testing Methodology for Underwater Coal Mining" in Minerals, MDPI AG (2021). https://doi.org/10.3390/min11060564
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New data from the Lower Cretaceous carbonate platform deposits of Dimitrovgrad section (Southeastern Serbia)
... century (Jankičević, 1978). The study area is located in the Carpatho-Balkanides of Serbia, close to the town of Dimitrovgrad, and includes the narrow belt of Lower Cretaceous (Valanginian-Hauterivian) carbonate successions in the southern sector of the Getic Carbonate Platform. The identified carbonate ...Jelena Stefanović, Bojana Džinić, Giovanna Della Porta, Dejan Radivojević. "New data from the Lower Cretaceous carbonate platform deposits of Dimitrovgrad section (Southeastern Serbia)" in 90° Congresso della Società Geologica Italiana, Trieste, 14-16 septembar, 2021, Società Geologica Italiana (2021)
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The Importance of Detailed Groundwater Monitoring for Underground Structure in Karst (Case Study: HPP Pirot, Southeastern Serbia)
... regionally important tectonic units (Getic and Danubian), which are represented by a system of east-vergent thrusts. The most significant is the Vidlič thrust, which the tunnel intersects (Figure 2). The study area is mostly built up of carbonate sediments of the Triassic, Jurassic and Cretaceous ages. The ...
... higher range (>12 ◦C, from 5 + 940 to 7 + 600 m) was measured in the deeper part of the rock mass along the contact of the main tectonic units (Vidlič thrust). Measurements of water losses at the control gate (Figure 4) showed an elevated water temperature, which may be a result of groundwater inflow from ...Marina Čokorilo Ilić, Ana Mladenović, Marina Ćuk, Igor Jemcov. "The Importance of Detailed Groundwater Monitoring for Underground Structure in Karst (Case Study: HPP Pirot, Southeastern Serbia)" in Water, MDPI AG (2019). https://doi.org/10.3390/w11030603