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Упит dcterms_subject_txt:L’dži locality

65 items

  • Crystallography and Surface Oxidation of Stoichiometric Arsenopyrite from Šumadija-Kopaonik Pb-Zn/Polymetallic Ore District (Serbia)

    Ivana Jelić, Aleksandar Pačevski, Aleksandar Kremenović, Aleš Šoster, Andreja Šestan, Janez Zavašnik (2023)
    The behaviour and stability of arsenopyrite largely depend on its crystal structure, but studies of crystallography and structural defects are scarce. For clarification, we investigated a series of natural arsenopyrite crystals from the polymetallic Pb-Zn-(±Cu,Ag,Au,Sb,Bi,W) Šumadija-Kopaonik ore district (Serbia) by powder X-ray diffraction (XRPD). Among them, samples from the Drenjak gold mineralisation showed near-stoichiometric FeAsS composition and were further investigated by conventional and high-resolution transmission electron microscopy methods. TEM revealed abundant planar crystallographic defects and epitaxial surface oxide layer ...
    Inorganic Chemistry, Condensed Matter Physics,General Materials Science, General Chemical Engineering, crystal structure, FeAsS, oxidation, TEM, XRPD
    ... composition, the samples from the Drenjak locality were selected for further TEM analyses (additional explanation and rationale regarding, the selection of the samples can be found in Supplementary Information File S1). Additionally, the samples from this locality are composed of crystals large enough ...
    ... X-ray Pouwder Diffraction (XRPD) In total, 14 samples were analysed by X-Ray Powder Diffraction (XRPD), among them four specimens from the Drenjak locality (Figrure 2). The cell parameters for investigated samples are summarised in Table 1, whereas the whole dataset is available in machine- reading ...
    ... as a mean of 14 measurements are a = 5.748(06) A, b = 5.680(85) A, c = 5.775(42) A, and B = 112.05(95)?*. The calculated val- ues for Drenjak locality, the mean of four measurements, are: a = 5.744(8) A,b= 5.678(55) A, c=5.774(03) A, and P = 112.05(65)”. As reported in [19], the changes in the ...

  • Seasonal Variations of the Zapadna Morava River Water Quality

    Nebojša Đ. Pantelić, Jana S. Štrbački, Goran Marković, Jelena B. Popović-Đorđević (2021)
    The water samples collected from four localities of the middle course of the Zapadna Morava River during 2020 were analyzed via the selected physicochemical parameters with the aim to estimate the quality of surface water. According to the results of selected physico-chemical parameters (pH, conductivity, dissolved oxygen, chemical oxygen demand, biochemical oxygen demand), analyzed surface water show a good chemical status, while the values of nutrient content (nitrate, nitrite, ammonium ion, total phosphorus) indicated the poor chemical status especially ...
    water quality, dissolved oxygen, ammonium ion, total phosphorus

  • Tectonic evolution of the Circum-Moesian orocline of the Carpatho-Balkanides: Paleomagnetic constraints

    Emő Márton, Vesna Cvetkov, Miodrag Banješević, Gábor Imre, Aleksandar Pačevski (2024)
    Apuseni-Banat-Timok-Srednogorie belt, danubicum, paleomagnetism, oroclinal bending

  • Kristalografsko proučavanje strukturne desimetrizacije granata grosularsko-andraditske izomorfne serije

    Pavle I. Tančić (2016-09-21)
    U ovoj Doktorskoj disertaciji proučavano je pet različitih zona makroskopski zonarnog grandita sa lokaliteta Meka Presedla (Kopaonik, Srbija). Pomoću hemijske i elektronske analize mikroprobe preračunati su relativno visoko homogeni sastavi zona, t.j.: Grs64±1Adr36±1Sps2 (A), Grs62±1Adr38±1Sps2 (B), Grs59±2Adr40±2Sps2 (C), Grs58±2Adr41±2Sps2 (D) i Grs58±1Adr41±1Sps2 (E). Glavne promene u sastavima izražene formulom: Ca2,93-2,97Mn0,05-0,06Mg0,00-0,01Al1,14-1,26Fe3+0,72-0,83Ti0,00-0,02Si2,97-3,02O12 ukazuju da je jedina značajnija varijacija ustanovljena samo kod Al-Fe3+ raspodela u oktaedarskom položaju. Ovakav hemijski sastav je potvrđen i sa matematičkim proračunima iz IC i Raman analiza. Urađena ...
    Macroscopically zoned grandite, chemical analysis, electron microprobe analysis, Raman, Rietveld, structure, dissymmetrization, space group

  • Paleomagnetic evidence for post-collisional Miocene clockwise rotation in the Serbian segment of the Vardar Zone and the Danubicum

    Vesna Lesić, Emő Márton, Vesna Cvetkov, Dragana Tomić (2015)

  • New data from the Lower Cretaceous carbonate platform deposits of Dimitrovgrad section (Southeastern Serbia)

    Jelena Stefanović, Bojana Džinić, Giovanna Della Porta, Dejan Radivojević (2021)
    Lower Cretaceous, facies analyses, limestones, Getic, Serbia, carbonate platform
    ... siliciclastic sediments (sandstone) indicative of different environments from shallow platform interior to slope and basin. The data from Dimitrovgrad locality with beds fully made of Bacinella sp. show the significant changes in environment of deposition from platform interior to reef depositional environment ...

  • Aлтерације перидотита контролисане карактером флуида на примеру харцбургита Рудника - Серпентинизација или талкизација?

    Стефан Петровић, Наталија Батоћанин (2020)
    У раду су приказани резултати испитивања серпентинисаних харцбургита Брђана (43°58'45.1" СГШ, 20°25'12.6" ИГД) и талкизираних харцбургита откривених у интервалу 429-559.8 m у истражној бушотини 330А/18 (44°07'33.2" СГШ, 20°30'28.5" ИГД) на Руднику. Узорци оба локалитета показују карактеристике резидуалних харцбургита из омотача, односно тектонита; лепидобластичне, бластозрнасте, или порфирокластичне структуре и масивне текстуре. Серпентинисани харцбургити и серпентинити Брђана су изграђени од серпентина, ретких реликата оливина и ортопироксена, акцесорног спинела, и веома ретког секундарног магнезита и магнетита. Најдоминантнији састојак (местимично гради и преко ...
    Рудник, Брђани, харцбургити, серпентинити, талк
    ... ширег подручја Брђана. Детаљ са ОГК 1:100.000, лист "Чачак"- К 34-5 (BRKOVIĆ et al., 1970). Figure 2. Geological map of the broader area of the locality Brdjani. Detail from the Basic Geological Map 11:100.000, sheet "Čačak"- К 34-5 (BRKOVIĆ et al., 1970). Подређени су лерзолити, верлити, дунити ...
    ... composition and origin (mantle or ocean crust), and particularly the type of alteration, the samples from serpentinized peridotites near the Brdjani locality were taken, too (Fig. 2). Brdjani is placed approximately 15 km southwestern from Rudnik, between two Tertiary sedimentary basins: Gornji Milanovac ...
    ... were taken. Four samples were taken from the drilled borehole from Rudnik (interval 480-498 m) and two samples were taken from the surface in the locality Brđani. The laboratory examinations included: - Determination of mineral composition and fabric in selected samples by the optical investigations ...

  • 2D geoelectrical resistivity tomography application at the former city waste dump "Ada Huja": Eco-geological problem

    Branislav Sretenović, Filip Arnaut, Ivana Vasiljević, Vesna Cvetkov (2019)
    2D inversion, geoelectrical method, Wenner array, ecology, Ada Huja
    ... Huja” (4 km from the Belgrade city center, first city zone) resulted in the housing development for 900 to 2000 people built on the most unsanitary locality in Belgrade (housing development “Deponija”). In the beginning of the year 1960, under the jurisdiction of the former Federal executive council ...
    ... Examined terrain photographed on 29thMarch 2019. 3.2 Possible Environmental Threats The list of the possible ecosystem threats regarding the locality of the former communal waste dump site “Ada Huja” can be lengthy, but without thorough examination it remains speculative i.e. theoretical. In ...
    ... appliances, textiles etc. According to data of the “General characterization of waste” (Singh et al., 2015) which was not conducted for the Belgrade locality but can be used with some reserves, organic waste boasts a maximum of household waste with 43%, but that waste is biodegradable so it is not accounted ...

  • Pleistocene rhinoceros from Bogovina Cave: the first report of Stephanorhinus hundsheimensis Toula, 1902 (Mammalia, Rhinocerotidae) from Serbia

    Predrag Radović, Miloš Radonjić, Emmanuel Billia (2020)
    Finds of Pleistocene rhinoceros are rare in Serbia, and only one species (the woolly rhinoceros Coelodonta antiquitatis Blumenbach, 1799) has been reported so far. The current paper presents the dental material of an extinct so-called Hundsheim rhinoceros, Stephanorhinus hundsheimensis Toula, 1902 from Bogovina Cave (East ern Serbia). Both the morphological and metric characteristics of the teeth are consis tent with the attribution to S. hundsheimensis. Unfortunately, the rhinoceros material originated from an uncertain geological context, so there is no ...
    rhinoceros, Stephanorhinus hundsheimensis, Serbia
    ... Bogovina Cave is nevertheless important due to the scarcity of rhinoceros fossils from Serbia. MATERIALS AND METHODS The fossil material from the locality of Bogov- ina Cave (Serbia) is stored in the collections of the National Museum Kraljevo (abbreviated NMKVRS) and the Homeland Museum Paraćin (HMP) ...
    ... africanus Arambourg, 1970. Stephanorhinus hundsheimensis Toula, 1902 Holotype. Skeleton 2013/0282/0001 (Natural His- tory Museum Vienna, Austria). Type locality and horizon. Hundsheim (Lower Austria), early Middle Pleistocene (MIS 15-13). Occurrence. Latest Villafranchian and Galerian, late Early and early ...
    ... 2016. Villafranchian-Galerian mammal faunas transition in South-Western Europe. The case of the late Early Pleistocene mammal fauna of the Frantoio locality, Arda River (Castell’Arquato, Piacenza, Northern Italy). Geobios, 49:329-347. https://doi.org/ 10.1016/j.geobios.2016.06.002 Breda, M., Collinge ...

  • Hyperpycnites within the Devonian-Carboniferous flysch of the Carpatho-Balkanides (Kostadinovica, eastern Serbia)

    Miloš Radonjić (2020)
    This study presents new discoveries of vascular plants and the trace fossil Dictyodora liebeana (GEINITZ) from the Devonian–Carboniferous Kučaj-Zvonce flysch of the Carpatho-Balkanides and the implications of this fossil association for its sedimentary setting. The occurrence of the described plant debris in a deep-marine environment indicates the presence of hyperpycnites within the siliciclastic turbidites exposed at the Kostadinovica locality. The sedimentological data and the characteristics of the fossil material support the proposed model in which the sediment was at ...
    Mississippian flora, Dictyodora liebeana (GEINITZ), hyperpycnites, Kučaj-Zvonce flysch, Carpatho-Balkanides
    ... plant debris in a deep-marine environment indicates the presence of hyperpycnites within the siliciclastic turbidites exposed at the Kostadinovica locality. The sedimentological da- ta and the characteristics of the fossil material support the proposed model in which the sedi- ment was at least partially ...
    ... position and cor- relation to other equivalent formations of the Variscides of Europe. 2. GEOLOGIC SETTING The studied succession at the Kostadinovica locality is positioned in the central part of the Carpatho-Balkanides in eastern Serbia Article history: Manuscript received April 15, 2020 Revised ...
    ... and Mesozoic-Palaeogene sedi- mentary cover (KRSTIĆ & MASLAREVIĆ, 1990). 3. THE KOSTADINOVICA SECTION The exposed succession at the Kostadinovica locality (WGS: 43°43’5.06” N; 21°56’38.90” E) is in probable tectonic contact with Cretaceous carbonates and Oligocene(?) siliciclastics to- wards the ...

  • The analysis of the geothermal energy capacity for power generation in Serbia

    Jana Stojković, Goran Marinković, Petar Papić, Mihailo Milivojević, Maja Todorović, Marina Ćuk (2013)
    Renewable Energy, Sustainability and the Environment
    ... long remain oversaturated with respect to quartz. Table 1. Results of estimated groundwater temperatures on the basis of applied geothermometers Locality Tm SiO2amorphous [°C] SiO2chalcedony [°C] SiO2quartz [°C] Giggenbach [°C] (1) Vranjska spa (VG-2, VG-3) 111 88 133 160 176 (2) Kuršumlijska ...
    ... electricity generation from geothermal sources in Serbia are given in tab. 2. Table 2. Most promising locations for obtaining electricity in Serbia Locality Q [L/s] Tm [°C] Tquartz [°C] TC [MWt] TE [TJy–1] Utilization System cycle (1) Vranjska spa (VG-2,VG-3) 50 111 160 29.3 923.3 Electricity Single ...

  • New data on the age of an Upper Cretaceous clastic-carbonate succession in Brežđe (Western Serbia)

    Nevenka Đerić, Nataša Gerzina (2014)
    Gornja kreda, radiolarije, Jadar blok, zapadni pojas Vardarske zone, zapadna Srbija
    ... as a single unit of Turonian-Senonian age. During the last few years, however, radiolarian investigations have becn focused on the Struganik locality in the vicinity of Brežđe village. These investigations enabled a more detailed biostratigraphic assignment of the rocks that belong to the T ...
    ... surroundings, which should be an important contribu- tion to better understanding of geology of Western Serbia. 2. GEOLOGICAL SETTING The studied locality is situated in Western Serbia, 17 km southeast of Valjevo and 7 km south of Mionica, along the Struganik-Brežđe road (GPS N44"11'30”, E20%04'16 ...

  • History of meteorite donations to the Collection of Minerals and Rocks of the University of Belgrade, Faculty of Mining and Geology (Serbia)

    Alena Zdravković, Maja Milošević, Kristina Šarić, Ivana Jelić, Ana Černok (2021)
    ... mailto:ana.cernok@open.ac.uk 129 collection. Besides numbering, each sample in that catalogue contained information on the sample’s name and the locality of recovery. The meteorites donated to the Mineralogical Museum of the Great School of Belgrade had numbers 36, 37 and 38, but meanwhile the specimen ...

  • Geoenvironmental Investigations at a Smelter Location in Bor (Serbia)

    Petar Papić, Zvonimir Milijić, Jana Stojković, Jovana Milosavljević, Maja Todorović, Marina Ćuk, Željko Kamberović (2014)

  • Joint interpretation of paleomagnetic, structural and AMS results from the Vardar Zone of Serbia

    Emo Marton, Marinko Toljić, Vesna Lesić, Vesna Cvetkov (2021)

  • Lower Berriasian ammonites from Dedina (Golubac Mountains, eastern Serbia) and their biostratigraphic implication

    Zdenek Vasícek , Dragoman Rabrenović, Petr Skupien, Barbara Radulović (2023)
    Ammonites, Taxonomy, Lower Berriasian, Getic, Northern Tethys, Serbia
    ... Cretaceous Research 151 (2023) 105623 with calpionellid association at the locality; these fossils were located above the right side of the Dedina Stream and were not studied by earlier workers. Later, at the same locality, Carević and Jovanović (2007) and Carević (2009), based on the abundant ...
    ... Geological and geographical locations of the Dedina section in eastern Serbia (Kučaj Unit). A, Locality map of the investigated Upper Jurassic and Lower Cretaceous Dedina succession. The collection locality is indicated by the star and red curved line. Small right sketch: the positions of the Getic and ...
    ... solving this problem. The assumption that there are fossiliferous deposits in the area of the J/K boundary on the Serbian section at the Dedina locality initiated an integrated investigation of this site. Ammonites represent important international biostratigraphic markers that can contribute ...

  • Callovian (Middle Jurassic) Sphriganaria (Brachiopoda) from the Jordan Valley (Middle East)

    Howard R. Feldman, Barbara V. Radulović, Fayez Ahmad (2023)
    Brachiopods, Middle Jurassic, Sphriganaria, shell microstructure, Ethiopian Province

  • Age of the Jurassic hemipelagic sediments from the Ljubiš area (Zlatibor Mt., SW Serbia)

    Nikita Bragin, Nevenka Đerić (2020)
    Radiolaria, Dinarides, Jurassic, stratigraphy, Serbia
    ... products of the advancing nappe stack and embed­ ded in a radiolarite bearing argillaceous matrix. According to these authors, the Djokov Potok locality in the Ljubiš village is the type section of the newly established Ljubiš Formation (Fig. 3). These Jurassic radiolarites intercalated with cal ...
    ... open-marine Late Triassic limestone clasts, various heavy minerals and others (GAWLICK et al., 2017). The Ljubiš Formation was dated at the type-locality only by the pres­ ence of the radiolarian specimen Eucyrtidiellum sp. cf. E. un- umaense (GAWLICK et al., 2017). Also, bedded greenish-grey ra ...

  • Age and microfacies of oceanic Upper Triassic radiolarite components from the Middle Jurassic ophiolitic mélange in the Zlatibor Mountains (Inner Dinarides, Serbia) and their provenance

    Hans-Juergen Gawlick, Nevenka Đerić, Sigrid Missoni, Nikita Bragin, Milan Sudar, Divna Jovanović (2017)
    Neo-Tethys, trench-like basins, synorogenic deposition, evolving thrust belt, Triassic palaeogeography
    ... different slide blocks are marked by numbers. Locality 1 — Sample SRB 207 from a fissure filling in back-reef to lagoonal Upper Triassic Dachstein Limestone. Locality 2 — Samples SCG 48a and b overlying: a Late Triassic fore-reef to reefal block. Locality 3 — Samples SCG 50-52 from the ophiolitic mćlange ...

  • Coupling of artificial intelligence methods in the development of hybrid intelligent systems

    Ranka Stanković, Ivan Obradović, Nikola Lilić (2001)
    In this paper we present an approach which couples various artificial intelligence (AI) methods in the solution of complex problems that cannot adequately be solved by a single AI method. We argue that the resulting, hybrid intelligent systems (HIS) can be successfully implemented with the use of available AI software libraries. Different coupling methods are analyzed and a classification of hybrid systems based on the chosen method is given. Two case studies of hybrid systems used in mining engineering ...
    hibridni inteligentni sistemi, spregnuti sistemi, metode veštačke inteligencije, rudarske primene veštačke inteligencije
    ... results obtained by the neural network, analyses and refines estimations and suggests activities for improving air protection on the analyzed locality, is in progress. Existing legal regulations and engineering practice will be used for building its knowledge base. The reliability of results ...