Претрага
145 items
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Effects of bentonite binder dosage on the properties of green limestone pellets
Vladimir Jovanović, Dinko Knežević, Živko Sekulić, Milan Kragović, Jovica Stojanović, Slavica Mihajlović, Dragana Nišić, Dragan Radulović, Branislav Ivošević, Milan Petrov (2016)This paper presents the results of tests carried out to determine how the dosage of bentonite added as binder, affects the properties of green pellets made of the limestone fines that originate from Lithothamnium limestone processing. Bentonite was added to limestone in different mass fractions (1, 2.5, 5 and 10%), whereas all the other parameters of the pelletizing process remained constant. The aim of pelletizing was to consolidate limestone fines and form mechanically stable pellets, provided that all the ...Vladimir Jovanović, Dinko Knežević, Živko Sekulić, Milan Kragović, Jovica Stojanović, Slavica Mihajlović, Dragana Nišić, Dragan Radulović, Branislav Ivošević, Milan Petrov. "Effects of bentonite binder dosage on the properties of green limestone pellets" in Chemical Industry, Beograd : National Library of Serbia (2016). https://doi.org/10.2298/HEMIND160210023J
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Numerical modelling of the roughly simultaneous emplacement of two distinct ophiolite belts
Nikola Stanković, Vesna Cvetkov, Vladica Cvetković. "Numerical modelling of the roughly simultaneous emplacement of two distinct ophiolite belts" in 5th Congress Geologists of the Republic of North Macedonia, Ohrid, 28-29. 10. 2024, Македонско геолошко друштво (2024)
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Palaeoflora of Kamenica (Pranjani Basin, western Serbia)
Palaeofloras of the Paleogene in Serbia are relatively rare, especially in comparison with floras from Neogene sediments. Most Paleogene phytoas sociations from the territory of Serbia existed in a dry and warm climate. The youngest Paleogene phytoassociation originates from the Pranjani Basin (Western Serbia), locality Kamenica. The age of this palaeoflora is determined as Late Oligocene. This fossil plant assemblage is different from other Paleo gene phytoassociations.The palaeoflora from Kamenica is characterized with leaf imprints larger than in other ...... cal forest dominated in paleophytocenosis of Ka- menica: Glyptostrobus (Plate 1, Figs. 10, 14, 15, 17), Sequoia (Plate 1, Figs. 2, 8, 12; Plate 2, Fig. 2), Taxo - dium (Plate 1, Figs. 9, 11, 16; Plate 2, Figs. 10, 14), Laurus (Plate 3, Figs. 1–6, 8). These taxons prevail in Kamenica palaeoflora. The other ...
... the Myrica (Plate 5, Figs. 1, 5) and Platanus neptuni (Plate 4, Fig. 10). These plant forms inhabited the banks of the river and the margins of the lake basin. a significant number of samples in this locality belongs to pines: Pinus hepios (Plate 1 Fig. 5), Pinus palaeopentaphylla (Plate 1, Figs. 1, ...
... Balk. poluos., 2019, 80 (2), 53–6358 Palaeoflora of Kamenica (Pranjani Basin, western Serbia) Geol. an. Balk. poluos., 2019, 80 (2), 53–63 59 Plate 1. Figs. 1, 3, 4, 7. Pinus palaeopentaphylla TaNaI & ONOe; Figs. 2, 8, 10, 12. Sequoia abietina (BrONGNIarT) KNOBLOch; Fig. 5. Pinus hepios (uNGer) ...Zorica Lazarević, Ljubica Milovanović, Jelena Milivojević, Ivana Vasiljević . "Palaeoflora of Kamenica (Pranjani Basin, western Serbia)" in Geološki anali Balkanskog poluostrva, Beograd : Rudarsko-geološki fakultet (2019). https://doi.org/10.2298/GABP1902053L
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Ophiolite obduction onto the African plate during the narrowing of Tethys: contribution from numerical simulations
Nikola Stanković, Vesna Cvetkov, Vladica Cvetković. "Ophiolite obduction onto the African plate during the narrowing of Tethys: contribution from numerical simulations" in XVIII Kongres geologa Srbije, Divčibare, Srbija (01-04.2022.), Srpsko geološko društvo (2022)
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Balance between tectonics and sedimentation during geodynamic evolution of the Adria-Europe convergence zone in central Serbia
... the passive continentalmargin of the Dinarides was exclusively controlled by continuous shortening and overalltransgression over the subducting Adria plate. Deposition starts with transgressiveAlbian–Cenomanian coarse-clastics and gradually deepens into the clastic-carbonatic shelfdeposits. Rapid subsidence ...
... (i.e., the Struganik facies). The onset of deposition in the Sava subduction trench, aswell as the accelerated subsidence in the entire lower Adria plate domain was coeval withTuronian–Coniacian switch to syn-subductional extension in the European fore-arc basin. Thetrench sedimentation starts with Turonian ...
... turbidites, as observed in the Rudnik Formation in Central Serbia. The westward expansion and migration of trench deposition towards the lower Adria plate culminated withMiddle Campanian–Late Maastrichtian deposition of siliciclastic trench turbidites observed in theLjig Formation. The onset of the latest ...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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Correlation Between Dynamic CBR and Compaction and Bearing Capacity of Pavement Foundation Layers
This paper presents a dynamic California Bearing Ratio (CBRd) device that can be used on a prepared pavement foundation layer to obtain a certain parameter of the tested material in the laboratory and in situ in a direct and fast way. For the selected natural material (gravel), it is shown that the laboratory CBRd can be used to estimate the compaction and bearing capacity, because it correlates well with the parameters of the standard and modifed Proctor compaction tests. ...korelacija parametara, donji slojevi saobraćajnica, laboratorijska i terenska ispitivanja, dinamički kalifornijski indeks nosivosti CBRd... size (di- ameter) of the plate, plate contact stress, type and location of deflection transducer, use of load transducer, loading speed, and material strength [9, 10]. The tests with the CBR,„ device were performed in accordance with TP BF-StB Teil B 7.1:2012. Static plate load test The counterweight ...
... part of the device, but it is required to perform the test. A plate with a diameter of 500 mm was used to determine the modulus of deformation, and the load was increased until a normal stress of 0.5 MN/m? was reached below the plate. Before the test started, the load transducer and the number ...
... performed using Zorn Instruments' ZFG 3.0 equipment [15]. A circular load plate with diameter D=0.3mwas subjected to settlement owing to the maximum impact force of 7.07 kN (falling weight of 10 kg). The movement of the plate (settlement) was recorded using an electronic device, which prevented poten- ...Milan Bogdanović, Snežana Bogdanović, Dragoslav Rakić, Irena Basarić Ikodinović. "Correlation Between Dynamic CBR and Compaction and Bearing Capacity of Pavement Foundation Layers" in Soil Mechanics and Foundation Engineering, Springer Science and Business Media LLC (2024). https://doi.org/10.1007/s11204-024-09939-x
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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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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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Upper Cretaceous scaglia type limestone from Klepa Mts. (North Macedonia) - sedimentology and biostratigraphy
The research area is located in the central part of North Macedonia, in the area of the Klepa Mts. Based on sedimentological, micropaleontological and biostratigraphical investigations of samples from both the east and west side of the Klepa Mts., sedimentary rocks of the Upper Creaceous age are determined. During the latest Cretaceous, this area was dominated by the sedimentation of dominantly carbonate rocks with variable amounts of clastic components. From the tectonic point of view, investigated area belongs to the ...Violeta Gajić, Milena Dunčić, Ana Mladenović, Dejan Prelević. "Upper Cretaceous scaglia type limestone from Klepa Mts. (North Macedonia) - sedimentology and biostratigraphy" in EGU General Assembly 2024, European Geosciences Union (2024). https://doi.org/10.5194/egusphere-egu24-21298
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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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Analogue modelling of strain partitioning along a curved strike-slip fault system during backarc-convex orocline formation: Implications for the Cerna-Timok fault system of the Carpatho-Balkanides
Nemanja Krstekanić, Ernst Willingshofer, Taco Broerse, Liviu Matenco, Marinko Toljić, Uroš Stojadinović (2021)... mobile plastic plate has a cut in the middle in the north-south direction (dashed green line in Fig. 2) to enable the sliding and rotation of the mobile plate along a stationary pin (Fig. 2). This construction allows for a combined translational-rotational movement of the mobile plate. The second, ...
... 0.1 mm thick plastic sheet (grey in Fig. 2), is fixed and overlies the moving plate north of the rigid block, while underlying this moving plate to the north-west. This change takes place at the cut in the moving plate. We have chosen this configuration to prevent deformation north Fig. 2. Modelling ...
... (the second-phase) on the pre-existing strike-slip faults. This complex movement of the mobile plate is guided by a fixed bar located in the north (Fig. 2a–c). During the experiment, when the mobile plate hits the rotation guide bar, we remove the lateral translation guide bars to enable the combined ...Nemanja Krstekanić, Ernst Willingshofer, Taco Broerse, Liviu Matenco, Marinko Toljić, Uroš Stojadinović. "Analogue modelling of strain partitioning along a curved strike-slip fault system during backarc-convex orocline formation: Implications for the Cerna-Timok fault system of the Carpatho-Balkanides" in Journal of Structural Geology, Elsevier BV (2021). https://doi.org/10.1016/j.jsg.2021.104386
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Numerical modelling of a single intra-oceanic subduction for the origin of the Balkan ophiolites
Nikola Stanković, Vesna Cvetkov, Vladica Cvetković. "Numerical modelling of a single intra-oceanic subduction for the origin of the Balkan ophiolites" in 5th Congress Geologists of the Republic of North Macedonia, Ohrid, 28-29. 10. 2024, Македонско геолошко друштво (2024)
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Stratigraphy and Microfauna (Radiolarians and Foraminifera) of the Upper Cretaceous (Upper Santonian–Lower Campanian) Carbonate Deposits in the Area of Struganik Village, Western Serbia)
Santonian, Campanian, radiolarians, planktonic foraminifera, biostratigraphy, limestones, Struganik, SerbiaLiubov Bragina, Nikita Bragin, Luidmila Kopaevich, Nevenka Đerić, Nataša Gerzina Spajić. "Stratigraphy and Microfauna (Radiolarians and Foraminifera) of the Upper Cretaceous (Upper Santonian–Lower Campanian) Carbonate Deposits in the Area of Struganik Village, Western Serbia)" in Stratigraphy and Geological Correlation, Pleiades Publishing Ltd (2020). https://doi.org/10.1134/S0869593820010037
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Alpine tectonic evolution of the Northern Serbo-Macedonian subunit: inferences from kinematic and petrological investigations
... the Neotethysoceanic lithosphere beneath the upper European plate (i.e., the Sava subduction system). Theretreating and steepening of subducting lithosphere during the Late Cretaceous triggered syn-subductional extension in the upper plate of the Sava subduction system. The Late Cretaceousextension exhumed ...Bojan Kostić, Uroš Stojadinović, Nemanja Krstekanić, Marija Ružić, Aleksa Luković. "Alpine tectonic evolution of the Northern Serbo-Macedonian subunit: inferences from kinematic and petrological investigations" in EGU General Assembly 2021, Vienna, Austria, 19.-30.4.2021., EGU (2021). https://doi.org/10.5194/egusphere-egu21-202
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Mapping and classifying large deformation from digital imagery: application to analogue models of lithosphere deformation
kontinentalna tektonika: kompresija, kontinentalna tektonika: ekstenzija, kontinentalna tektonika: transkurentni i transformni rasedi, pukotine, rasedi, zone snažnih deformacija, kinematika deformacija kore i omotača, teorijska mehanika, modelovanje... transparant. (b) (c) 3 4 .5 3 4 .5 C u t Fixed plate Brittle layer outline Moving plate F ix e d p la s ti c s h e e t T ra n s la ti o n g u id e b a r Translation guide bar Fixed pin Bar fixed to the moving plate and the motor Bar connecting the model and the motor ...
... 11). Directly north of the blue plate, the grey sheet is placed on top of the moving plate, while in the northwestern part of the model it is located below the moving plate (Fig. 11), which is facilitated by the cut in the moving plate. Our set-up allows the moving plate to translate into the area north ...
... translation and rotation of the moving plate around a fixed pin (red dot in Fig. 11). This pin represents the pole of rotation and is fixed to the stable plate (blue in Fig. 11) at its northwestern corner. The third basal plastic sheet, located north of the blue plastic plate, is also fixed (grey in Fig. 11) ...Taco Broerse, Nemanja Krstekanić, Cor Kasbergen, Ernst Willingshofer. "Mapping and classifying large deformation from digital imagery: application to analogue models of lithosphere deformation" in Geophysical Journal International, Oxford University Press (OUP) (2021). https://doi.org/10.1093/gji/ggab120
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Age of the Jurassic hemipelagic sediments from the Ljubiš area (Zlatibor Mt., SW Serbia)
Nikita Bragin, Nevenka Đerić (2020)... and Praewil- liriedellum sp. Radiolarites from Unit 6 are characterized by better preser vation of the radiolarians (Table 1, Fig. 6, Plate 1, Figs. D, L-P, Plate 2). Samples 15-10-10 and 15-10-11 were taken from the sixth unit (made up of dark greenish-grey thin-bedded radiolarites, with interlayers ...
... japonica, in BAUMGARTNER et al., 1995a), Eucyrtidiellum sp. cf. E. unumaense s.l. (YAO), Quarticella sp., Hsuum sp., Parahsuum sp., Parvimitrella sp. (Plate 1, Table 1). On the basis of the presence of Japonocapsa fusiformis (YAO), an early-middle Bajocian to late Bajocian-early Bathonian (UAZs 3-5; ...
... Central and Northern Balkans.– Lithos, 108/1–4, 72–105. doi: 10.1016/j.lithos.2008.10.015 G eo lo g ia C ro a ti ca Geologia Croatica 73/3150 Plate 1. Middle Jurassic (Bajocian to Bathonian) radiolarians from the Djokov Potok section (Samples 15-10-7, 15-10-8 and 15-10-10). A – Japonocapsa fusiformis ...Nikita Bragin, Nevenka Đerić. "Age of the Jurassic hemipelagic sediments from the Ljubiš area (Zlatibor Mt., SW Serbia)" in Geologia Croatica, Croatian Geological Survey (2020). https://doi.org/10.4154/gc.2020.11
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Inhibitory effect of platinum and ruthenium bipyridyl complexes on porcine pancreatic phospholipase A2
Tina Kamčeva, Jörg Flemmig, Bojana Damnjanović, Jürgen Arnhold, Aleksandar Mijatović, Marijana Petković (2011)Fosfolipaza pankreasa A2 (PLA2) igra važnu ulogu u ćelijskoj homeostazi kao iu procesu karcinogeneze. Efekti metalo-lekova koji se koriste kao hemoterapeutici na aktivnost ovog enzima nisu poznati. U ovom radu, interakcija između PLA2 svinjskog pankreasa i dva odabrana kompleksa prelaznih metala — tetrahloro(bipiridin) platine(IV) ([PtCl4(bipi)]) i dihloro (bipiridin) rutenijum(III)hlorida ([RuCl2(bipi)2) ]Cl)—proučavana je. Laserska desorpcija/jonizacija uz pomoć matriksa, vremenska masa spektrometrija (MALDI-TOF MS) i fluorescentna spektroskopija korišćeni su za analizu aktivnosti enzima u odsustvu i prisustvu metalnih kompleksa i za ...... preparation31 requests premixing of the sample and the matrix before application on the sample plate, in favor of better reproducibility. The sample was applied as 1.5 ml droplet on the sample plate and dried immediately under a warm stream of air. For monitoring the changes in mass spectra in the ...
... 5) was prepared and applied on the sample plate premixed with sinapic acid, as control. Metal complexes were dissolved in the same buffer to different final concentrations and incubated with the enzyme for three hours and then applied on the sample plate with sinapic acid. Quantification of product ...
... sample preparation”! requests premixing of the sample and the matrix before application on the sample plate, in favor of better reproducibility. The sample was applied as 1.5 ul droplet on the sample plate and dried immediately under a warm stream of air. For monitoring the changes in mass spectra in the ...Tina Kamčeva, Jörg Flemmig, Bojana Damnjanović, Jürgen Arnhold, Aleksandar Mijatović, Marijana Petković. "Inhibitory effect of platinum and ruthenium bipyridyl complexes on porcine pancreatic phospholipase A2" in Metallomics, Oxford University Press (OUP) (2011). https://doi.org/10.1039/c1mt00088h
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Exhumation history of the Juhor Mts. in central Serbia, the Northern Serbo–Macedonian Subunit
Uros Stojadinovic, Hannah Pomella, Nemanja Krstekanić, Bojan Kostić, Maja Maleš, Nikola Randjelovic, Miloš Radonjić (2024)Northern Serbo–Macedonian Subunit, low-t thermochronology, kinematic analyses, extensional deformationsUros Stojadinovic, Hannah Pomella, Nemanja Krstekanić, Bojan Kostić, Maja Maleš, Nikola Randjelovic, Miloš Radonjić. "Exhumation history of the Juhor Mts. in central Serbia, the Northern Serbo–Macedonian Subunit" in Geologica Carpathica, Jun 2024, Central Library of the Slovak Academy of Sciences (2024). https://doi.org/10.31577/GeolCarp.2024.12
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U-Pb zircon geochronology of the Paleogene – Neogene volcanism in the NW Anatolia: Its implications for the Late Mesozoic-Cenozoic geodynamic evolution of the Aegean
E. Yalçın Ersoy, Cüneyt Akal, Ş. Can Genç, Osman Candan, Martin R. Palmer, Dejan Prelević, İbrahim Uysal, Regina Mertz-Kraus (2017)The northern Aegean region was shaped by subduction, obduction, collision, and post-collisional extension processes. Two areas in this region, the Rhodope-Thrace-Biga Peninsula to the west and Armutlu-Almacık-Nallıhan (the Central Sakarya) to the east, are characterized by extensive Eocene to Miocene post-collisional magmatic associations. We suggest that comparison of the Cenozoic magmatic events of these two regions may provide insights into the Late Mesozoic to Cenozoic tectonic evolution of the Aegean. With this aim, we present an improved Cenozoic stratigraphy ...E. Yalçın Ersoy, Cüneyt Akal, Ş. Can Genç, Osman Candan, Martin R. Palmer, Dejan Prelević, İbrahim Uysal, Regina Mertz-Kraus. "U-Pb zircon geochronology of the Paleogene – Neogene volcanism in the NW Anatolia: Its implications for the Late Mesozoic-Cenozoic geodynamic evolution of the Aegean" in Tectonophysics 717 (2017): 284-301. https://doi.org/10.1016/j.tecto.2017.08.016
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Геохемијске карактеристике флотацијског јаловишта рудника Грот (југоисточна Србија)
Božidar Đokić (2012-07-16)У дисертацији су анализиране геохемијске карактеристике флотацијскогјаловишта које се налази на највишој надморској висини у Србији. Јаловиште јенастало преграђивањем узводно од Селишког потока. Географске, геолошке игеоморфолошке карактеристике области у којима је смештено највећим делом суутицали на његову морфологију и морфометрију. Јаловиште чини велики, јужни ијугоисточни плато и велика брана. Делови јаловишта су засебно испитивани, азатим и њихова међусобна интеракција и утицаји на окружење.Прикупљени узорци су испитивани рендгенском дифракциономанализом, скенирајућом електронском микроскопијом, рендгенскомфлуоресцентном спектрометријом, гранулометријском и хемијском анализом.Рендгенском дифракционом анализом ...флотација, јаловиште, скенирајућа електронско-микроскопскаанализа, рендгенска флуоресцентна спектрометрија, Pb-Zn руда,тешки метали, контаминација... дефинисани раније издвојени простори депоновања и реседиментације: - велики плато (сл. 30), - јужни плато (сл. 31), - југоисточни плато (сл. 32), - велика брана (падина, сл. 33). Сл. 30. Велики плато флотацијског јаловишта рудника Грот Божидар В. Ђокић Геохемијске карактеристике ...
... класе минерала и минерали на флотацијском јаловиште рудника Грот Класе минерала Минерали Делови јаловишта Велики плато Јужни плато Југоисточни плато Велика брана Плато Мала брана Виши делови Камена брана Силикатне Кварц (Q) + + + + + + Фелдспати (f) Лискуни (L) Хлорити ...
... северозападно од Криве Феје (сл. 27). Сл. 27. Географски положај и делови флотацијског јаловишта рудника Грот Легенда: 1. велики плато, 2. јужни плато, 3. југоисточни плато, 4. падина бране, 5. велика брана, 6. камена брана, 7. помоћна брана, 8. потопљени делови јаловишта Божидар В. Ђокић Геохемијске ...Božidar Đokić. "Геохемијске карактеристике флотацијског јаловишта рудника Грот (југоисточна Србија)" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2012-07-16)