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Упит dcterms_subject_txt:Paleontology,Earth-Surface Processes,Ecology

397 items

  • Tectonic evolution of the Vršac Mts. (NE Serbia): Inferences from field kinematic and microstructural investigations

    Uroš Stojadinović, Nemanja Krstekanić, Bojan Kostić, Marija Ružić, Aleksa Luković (2021)
    The Vršac Mts. in NE Serbia represent the key area to investigate structural relations between the Northern Serbo-Macedonian Subunit and Supragetic Unit of the Dacia Mega-Unit. The geodynamic events during the Variscan orogeny in the Late Paleozoic colligated the two units and led to their metamorphic differentiation. The Late Cretaceous extension exhumed the medium-grade Serbo-Macedonian metamorphic rocks and structurally juxtaposed them against the low-grade metamorphosed basement of the Supragetic Unit along an E-dipping shear zone, which outcrops in the ...
    severna srpsko-makedonska subjedinica, supragetikum, kinematska analiza, multifazna ekstenzionalna deformacija
    ... significance of Gosau-type basins for the late cretaceous tectonic history of the Alpine-Carpathian belt. Physics and Chemistry of the Earth, Part A: Solid Earth and Geodesy 24, 687–695. https://doi. org/10.1016/S1464-1895(99)00100-3 Willingshofer E., Andriessen P., Cloetingh S. & Neubauer F. 2001: ...
    ... A., Peytcheva I. & Quadt A. 2016b: Alpine thermal events in the central Serbo-Macedo- nian Massif (southeastern Serbia). International Journal of Earth Sciences 105, 1485. https://doi.org/10.1007/s00531-015- 1266-z Balázs A., Matenco L., Magyar I., Horváth F. & Cloetingh S. 2016: The link between ...
    ... Serbomacedonian metamorphic rocks and their relation to the exhumation of the Hellenic hinter- land (Macedonia, Greece). International Journal of Earth Sciences 88, 513–531. Kräutner H.G. & Krstić B. 2002: Alpine and Pre-Alpine structural units within Southern Carpathians and the Eastern Balkanides ...

  • Influence of mono- and two-component organic modifiers on determination of lipophilicity of tetradentate Schiff bases

    Nikola Stevanović, Aleksandar Mijatović, Aleksandar Lolić, Mario Zlatović, Rada Baošić (2021)
    Ispitivani su uticaji primene mono- i dvokomponentnih organskih modifikatora na određivanje lipofilnosti 12 tetradentatnih Šifovih baza metodom reverzno-fazne tankoslojne hromatografije. Osnovni cilj je da se proceni tip interakcije između posmatranih jedinjenja i komponenti primenjenih hromatografskih sistema i uspostavi neki obrazac ponašanja kako bi se lakše izabrala kombinacija organskih modifikatora koji će simulirati interakciju u biološkim sistemima na osnovu činjenica da iste osnovne intermolekularne interakcije su odgovorne za ponašanje supstanci i u biološkom i u hromatografskom sistemu. Primenjeni organski modifikator ...
    Šifove baze, Lipofilnost, RP-TLC, Organski modifikatori

  • Површинско распадање керсантита из Тешића мајдана у корелацији са начином обраде на примеру малог степеништа (Београдска тврђава)

    Невенка Новаковић (2024)
    Архитектуру Београда на прелазу 19. у 20. век обележила је употреба керсантита из каменолома Тешића мајдана. Kao камен високих декоративних својстава, керсантит је коришћен за јавне споменике, делове или потпуну изградњу објеката (Народна скупштина Србије, Мало степениште, Народни музеј и др.). Како очување споменика културе изискује познавање својстава уграђеног камена, истраживања су обухватила детаљно проучавање петролошких, хемијских и физичких карактеристика керсантита из Тешића мајданa и узорака камена из споменика Мало степениште (студија случаја). Након детаљног мапирања стања керсантита, лабораторијских ...
    керсантит, Мало степениште, споменик културе, архитектонски камен, физичко-хемијско распадање, мапирање, форме распадања, површинска обрада

  • Geotechnical zoning of the terrain along the first section of E-80 highway in Serbia – SEETO route 7

    Dragoslav Rakić, Zoran Berisavljević, Irena Basarić, Snežana Bogdanović, Jovana Janković (2019)
    Part of E-80 highway that passes through Serbia (from the city of Nis to the administrative border Merdare) is 77 km long. The highway is divided into two sections: the first from Nis to Plocnik (39.4 km long) and the second from Plocnik to the administrative border with Kosovo. The route is designed through a typical plain and hilly terrain in which different geological units are dominant: crystalline schists, neogene sediments of foothills and quaternary sediments in the valley ...
    ... „factors of the present“ i.e. relief (characteristic shapes, longitudinal and transverse inclinations), modern geological processes and occurrences (sliding, surface decomposition, erosion), hydrogeological conditions (groundwater level, flooding), coverage of the terrain, climatic conditions ...
    ... two characteristic zones: Zone I - consists of alluvial-terraced or alluvial-proluvial sediments in the surface zone, and Zone II - consists of deluvial-proluvial sediments in the surface zone (terrain base is made of Mio- Pliocene clayey-marl sediments). On this subsection, the highway is built ...
    ... morphologically more prominent parts of the terrain. Planar erosion with sporadic linear erosion is present on steep slopes, and products of these processes are deposited at the bottom of the slopes and on the flat parts of the terrain. 3. GEOTECHNICAL ZONING OF THE TERRAIN 3.1. Zoning of the ...

  • Quantitative landslide risk assessment in the city of Tuzla

    Miloš Marjanović, Biljana Abolmasov, Cvjetko Sandić, Miralem Mulać, Petar Begović (2021)
    In the climate-changing conditions, geological environment interacts more dramatically with the urban fabric than before. The urbanization is expansive and more aggressive than before, but so are the weather extremes and long-term climate trends. In effect, many processes which can be triggered by either side, nature or engineering, are becoming more pervasive than before, and such is the case with landslides. Dealing and managing landslides requires few crucial steps, starting from collecting data on landslide location and typology – ...
    "landslides", "risk assessment"
    ... before. The urbanization is expansive and more aggressive than before, but so are the weather extremes and long- term climate trends. In effect, many processes which can be triggered by either side, nature or engineering, are becoming more pervasive than before, and such is the case with landslides. Dealing ...
    ... is undermined by slope cuts and de-vegetation for infrastructure and construction, which is compensated by intensifying erosional and landslide processes, subsidence etc. On top of that, unstable or extreme weather in the climate changing conditions can further cause that such engineering activities ...

  • Unraveling Innerworkings of Magmatic System Beneath the East Pacific Rise 9º50’N

    Milena Marjanović, Suzanne M. Carbotte, Alexandre Stopin, Felix Waldhauser, Satish C. Singh, René-Édouard Plessix, Miloš Marjanović, Malden R. Nedimović, Juan Pablo Canales, Hélène D. Carton, Javier Escartin, John C. Mutter (2021)
    ... 1Université de Paris, Institut de Physique du Globe de Paris; CNRS, Paris, France 2Department of Marine Geology and Geophysics, Lamont-Doherty Earth Observatory, Columbia University; Palisades, NY, USA 3Shell Global Solutions International B.V.; Amsterdam, The Netherlands 4Now at Bureau de Recherches ...
    ... Recherches Géologiques et Minières – BRGM; Orléans, France 5Faculty of Mining and Geology, University of Belgrade; Belgrade, Serbia 6 Department of Earth Sciences, Dalhousie University; Halifax, Nova Scotia B3H 4R2, Canada 7Department of Geology and Geophysics, Woods Hole Oceanographic Institution; ...
    ... Session: V009: Focused Observations of Ridge Near-Axis Remote and In Situ Investigations: Magmatic, Volcanic, Hydrothermal and Biological Processes chaired by Michael Perfit Title: Unraveling Innerworkings of Magmatic System Beneath the East Pacific Rise 9º50’N Authors: Milena Marjanović1 ...

  • 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)
    ... Liviu Matenco1, Uros Stojadinovic2, Ernst Willingshofer1, Marinko Toljić2,and Daan Tamminga1 1Utrecht University, Faculty of Geosciences, Department of Earth Sciences, Utrecht, Netherlands (n.krstekanic@uu.nl) 2University of Belgrade, Faculty of Mining and Geology, Department of Regional Geology, Belgrade ...
    ... Cretaceous closure of the Alpine Tethys Ocean and collision of the Dacia mega-unit with the Moesian Platform. Following the main orogen-building processes, the Carpathianssubduction and Miocene slab retreat in the West and East Carpathians have driven the formationof the backarc-convex oroclinal bending ...

  • Investigation of Co0.9Ho0.1MoO4 Nanopowders Obtained by Glycine Nitrate Procedure

    Milena Rosić, Maja Milošević, Maria Čebela, Vladimir Dodevski, Vesna Lojpur, Radomir Ljupković, Aleksandra Zarubica (2023)
    ... synthesis methodology. During photocatalytic testing, the studied nanoparticle powder indicated a potentially i promising solution in photocatalytic processes toward green chemistry and sustainable development. Keywords: X-ray diffraction, Electron microscopy, Nanostructured materials -– 23- ...

  • Alpine tectonic evolution of the Northern Serbo-Macedonian subunit: inferences from kinematic and petrological investigations

    Bojan Kostić, Uroš Stojadinović, Nemanja Krstekanić, Marija Ružić, Aleksa Luković (2021)
    ... Dinaridicslabs, the Northern Serbo-Macedonian sub-unit between the Vršac Mts in the north and theJastrebac Mts in the south was strongly influenced by processes associated with theOligocene–Miocene Pannonian extension. Hence, large segments of the Northern Serbo-Macedonian sub-unit including its contact with ...

  • 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
    ... 1988 and 1989. Smith M., Henderson P., Jeffries T., Long J. & Williams C. 2004: The rare earth elements and uranium in garnets from the Beinn an Dubhaich aureole, Skye, Scotland, UK: Constraints on processes in a dynamic hydrothermal system. Journal of Petrology 45, 457–484. https://doi.org/10 ...
    ... between fluids and growing minerals involves removal of elements from the fluid, sorption onto a growing surface, incorporation via substitution mechanism, diffusion through the surface layer (McIntire 1963; Smith et al. 2004). Parti tio- ning controlled by bulk crystal chemistry would be expected ...
    ... grossular-rich opened a question: whether garnet chemistry could be used as a guide in prospecting Cu-skarn deposits (Somarin 2004)? Use of the rare earth elements (REE) in studies of the nature and effects of hydrothermal alterations and hydrothermal sys- tems is a relatively new method as the REE were ...

  • Reducing environmental impact caused by mining activities in limestone mines

    Radmila Gaćina, Bojan Dimitrijević (2022)
    Mining and its related activities have always resulted in changes in the environment and these changes can vary from one area to another. As a result of mining, several types of changes can be distinguished: destruction of land and existing vegetation, changes in terrain topography, modification in air quality, changes in surface and groundwater quality, as well as change geotechnical conditions of the rock. Environmental impact of mining have been a public concern. There is widespread global interest in mining ...
    uticaj na životnu sredinu, rudarstvo, degradirana područja, održivost, rekultivacija

  • A comparative study of the molecular and isotopic composition of biomarkers in immature oil shale (Aleksinac deposit, Serbia) and its liquid pyrolysis products (open and closed systems)

    Gordana Gajica, Aleksandra Šajnović, Ksenija Stojanović, Jan Schwarzbauer, Aleksandar Kostić, Branimir Jovančićević (2021)
    The molecular and isotopic composition of biomarkers in initial bitumen isolated from immature (0.41% Rr) oil shale samples (Aleksinac deposit) and liquid products obtained by pyrolysis in open (OS) and closed (CS) systems are studied. The influence of pyrolysis type and variations of kerogen type on biomarkers composition and their isotopic signatures in liquid products is determined. The applicability of pyrolysis type, numerous biomarkers and carbon isotopic compositions (δ13C) of n-alkanes in liquid pyrolysates is established. Pyrolysis experiments were ...
    Uljni šejl, Aleksinac, organska supstanca, otvoreni i zatvoreni sistem pirolize, biomarkeri, izotopski sastav ugljjenika

  • Cultural Heritage and Protection of Hand-Wheeled Pottery Manufacture in Western Serbia: Characteristics of Zlakusa Pottery Based on Sem-Eds and Optical Microscopy

    Milošević Maja, Zdravković Alena, Đordjević Biljana, Jelić Ivana (2021)
    ... Heritage of Humanity. In technological terms, it is a unique phenomenon that actively coexists with discovery of new techniques and production processes. This brings to a rise in imitations of this pottery manufacture due to its enlarged popularity. The main goal of this work was to show cha ...
    ... manufactured by the application of a mould. SEM-EDS analysis was performed on the inner parts of the walls of the investigated samples and their surface area. When samples are compared slight difference can be observed. Larger, randomly oriented calcite grains are noted in sample 1. Ground mass ...

  • Examination and characterization of nanostructured Co0.9Ho0.1MoO4

    Милена Росић, Маја Милошевић, Мариа Чебела, Владимир Додевски, Весна Лојпур, Марија Васић, Александра Зарубица (2023)
    ... and all the above-mentioned characterizations, it was shown that these nanostructured materials represent promising solutions in photocatalytic processes toward green chemistry and sustainable development. Acknowledgment: These investigations were supported by the Ministry of Education, Science ...

  • Развој хибридног модела за оптиматизацију завршне контуре одлагалишта у површинској експлоатацији лежишта минералних сировина

    Aлександар Додеровић (2024)
    Површинска експлоатација минералних сировина захтијева претходно откопавање значајних( милионских) количина јаловине, које је неопходно транспортовати до локације на којој ће сеона трајно одложити. Традиционални приступ избора локације и дизајна одлагалишта се карактерише парцијалним приступом, заснованом на анализи неколико водећих критеријума као и на личном искуству инжењера, често занемарујући синергетски ефекат осталих утицајних фактора Технолошке операције које се односе на манипулацију јаловином, међу којима предњачи транспорт, генеришу највећи дио трошкова у површинској експлоатацији. Такође, цјелокупан процес експлоатације додатно је ограничен ...
    оптимизације завршне контуре одлагалишта, хибридни модел, површинска експлоатација, генетски алгоритам

  • Application of the VIKOR Method for Selecting the Purpose of Recultivated Terrain after the End of Coal Mining

    Radmila Gaćina, Sanja Bajić, Bojan Dimitrijević, Tomislav Šubaranović, Čedomir Beljić, Dragoljub Bajić (2024)
    reclamation, coal, sustainable development, multi-criteria decision making, VIKOR method

  • INVENTS: A Hybrid Mine Ventilation Planning and Design System

    Lilić Nikola, Stanković Ranka, Obradović Ivan (2013)
    Ventilation system analysis is a complex process based on the calculation and analysis of numerous parameters. These problems can be successfully solved by the SimVent numerical package, but a full understanding and use of the obtained results require the involvement of an experienced specialist in the ventilation field. The solution was found in the creation of a hybrid system INVENTS, whose knowledge base represents a formalization of the expert knowledge in the mine ventilation field. In this paper we ...
    hybrid systems, mine ventilation, expert systems
    ... the ResNet software package The object-oriented approach in system structuring and modeling was used as the strategy for defining the model of processes and data in the development of INVENTS. In this paper UML (Unified Modeling Language), as a standard language for visualization, specification, ...
    ... to obtain efficient communication between the symbolic and the numerical part of the system. In order to cope with this problem a separation of processes in coupled systems into independent modules is suggested. Furthermore, information interchange, i.e. communication among modules, is strictly ...

  • Influence of DEM resolution on numerical modelling of debris flows in RAMMS - Selanac case study

    Jelka Krušić, Biljana Abolmasov, Mileva Samardžić Petrović (2019)
    Debris flows induced by intensive rainfall represent very hazardous phenomena in many parts of the World. Methods for prediction of runout distance of flow like mass movements are different and depending on the input data, rheology, and available or appropriate numerical solution. However, sometimes it is not easy to obtain pre event and post event high-resolution data in the rural or mountainous area. Thus, the topology of terrain is the most important input parameter for the every real case ...
    tecišta, modeliranje, RAMMS, DEM
    ... flows in RAMMS 2 𝑆𝑔𝑦 − 𝑆𝑓𝑦 = 𝜕𝑡 (𝐻 𝑈𝑦) + 𝜕𝑥 (𝐻 𝑈𝑥𝑈𝑦 ) + 𝜕𝑦 (𝑐𝑦𝐻 𝑈𝑦2 + 𝑔𝑧𝑘𝑎𝑝 𝐻22 ) (3) where the earth pressure coefficient ka=p is normally set to 1 when running the standard Voellmy– Salm friction approach, cx and cy represent topographical coefficients ...
    ... flow modeling at Meretschibach and Bondasca catchment, Switzerland: sensitivity testing of field-data-based entrainment model. Natural Hazards and Earth System Sciences 17: 801-815. Hungr O (1995) A model for the runout analysis of rapid flow slides, debris flows, and avalanches. Canadian Geotechnical ...
    ... Graf C, Kaitna R (2015) Modeling debris-flow runout patterns on two alpine fans with different dynamic simulation models. Natural Hazards and Earth System Sciences 15 (7):1483-1492. Sosio R, Crosta GB, Hungr O (2008) Complete dynamic modeling calibration for the Thurwieser rock avalanche (Italian ...

  • INVENTS: a hybrid system for subsurface ventilation analysis

    Nikola Lilić, Ranka Stanković, Ivan Obradović (2000)
    Ventilation system analysis is a complex process based on the calculation and analysis of numerous parameters. These problems can be successfully solved by the SimVent numerical package, but a full understanding and use of the obtained results require the involvement of an experienced specialist in the ventilation field. The solution was found in the creation of a hybrid system INVENTS, whose knowledge base represents a formalization of the expert knowledge in the mine ventilation field. In this paper we ...
    ... the ResNet software package The object-oriented approach in system structuring and modeling was used as the strategy for defining the model of processes and data in the development of INVENTS. In this paper UML (Unified Modeling Language), as a standard language for visualization, specification, ...
    ... to obtain efficient communication between the symbolic and the numerical part of the system. In order to cope with this problem a separation of processes in coupled systems into independent modules is suggested. Furthermore, information interchange, i.e. communication among modules, is strictly ...

  • Старење бунара у алувијалним срединама различитог степена оксичности

    Brankica Majkić (2013-09-27)
    Старење бунара настаје као последица процеса корозије и колмирања. Процесекорозије могуће је спречити уградњом филтерских конструкција од материјалаотпорних на корозију. Колмирање може да настане без обзира на врсту материјалаод кога се праве бунарске конструкције, а процесом може бити захваћенаприфилтарска зона па и зона саме водоносне средине. Из тог разлога тезa јеусмеренa на процесе који доводе до колмирања бунара и последицe опадањaкапацитета водозахватних објеката. Полазна хипотеза је да бунари стареразличитом брзином у срединама различитог степена оксичности. Хидрохемијскеи микробиолошке карактеристике подземних ...
    старење бунара, алувијалне издани, степен оксичности средине,колмирање, бунарски талог, локални хидраулички губитак, дозвољене улазнебрзине
    ... (1976): The effect of ferric hydroxide on the oxygenation of ferrous ions in natural solutions. Corrosion Sci. 16:197-207 135. Tiedje J.M (1988): Ecology of denitrification and dissimilatory nitrate reduction to ammonium, in: Biology of Anaerobic Microorganisms, ed. A.J.B. Zehnder, John Wiley & Sons ...
    ... stalk of Gallionella ferruginea, evaluated by comparison of a stalk-forming and a non-stalk-forming strain and biofilm studies in situ, Microbial Ecology 30, 257- 268 147. Hallberg R. and F.G. Ferris (2004): Biomineralization by Gallionella, Geomicrobiol.J. 21, 325-330 148. Harder E.C. (1919): ...
    ... 143-148 151. Houben G. (2000): Genesis, ageing and chemical removal of well incrustation: in Applied Mineralogy in Research, Economy, Technology, Ecology and Culture, vol. II (ed. by D. Rammlmair et al) (Proc. Sixth Int. Congr. Appl.Mineral., ICAM2000 Goettingen), 803-806. Balkema, Rotterdam, The ...