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Упит dcterms_subject_txt:clay mineralogy

140 items

  • Crystal structure of K3EuSi2O7

    Sabina Kovač, Predrag Dabić, Aleksandar Kremenović (2021)
    alkalni silikati elemenata retkih zemalja, kristalna struktura, sinteza metodom fluksa, rendgenska difrakcija na monokristalu
    ... K3EuSi2O7 SABINA Z. KOVAČ*, PREDRAG Z. DABIĆ and ALEKSANDAR S. KREMENOVIĆ University of Belgrade, Faculty of Mining and Geology, Department of Mineralogy, Crystallography, Petrology and Geochemistry, Laboratory of Crystallography, Đušina 7, Belgrade 11000, Serbia (Received 18 February; Revised ...
    ... 451-03-02141/2017-09/14; WTZ project No. SRB 14/2018). The authors also thank the Laboratory for Scanning Electron Microscopy at the Department of Mineralogy, Crystallography, Petrology and Geochemistry, University of Belgrade, Faculty of Mining and Geology and the Laboratory of X-ray diffraction at ...

  • Distribution of major and trace elements in the Kovin lignite (Serbia)

    Dragana Životić, Olga Cvetković, Predrag Vulić, Ivan Gržetić, Vladimir Simić, Konstantin Ilijević, Biljana Dojčinović, Suzana Erić, Bogdan Radić, Sanja Stojadinović, Snežana Trifunović (2019)
    geochemical and mineralogical study was performed on lignite samples from the Upper Miocene Kovin deposit, hosting three coal seams. The Kovin lignite is characterized by high moisture content, medium to high ash yield, medium to high sulphur content and a relatively low gross and net calorific value. The mineralogical composition, and major and trace element contents were determined by X-ray diffraction, scanning electron microscopy with energy dispersive Xray spectroscopy (SEM-EDS) analyses, and inductively coupled plasma optical emission spectrometry (ICP-OES). ...
    General Earth and Planetary Sciences, General Environmental Science
    ... with high gypsum/anhydrite and calcite contents. To further evaluate the relationships between lithotypes, mineralogy and geochemistry, profiles representing the vertical variation in mineralogy were placed alongside profiles of the ma­ jor element proportions (Si, Al, Fe, Ca, Mg, Ti, K, Na, Mn) in the ...
    ... authigenic crystals were also determined. Epigenetic quartz, along with clay minerals, pyrite, and carbonates, was formed within cleats and fractures in the organic matrix, as a re­ sult of the circulation of meteoric waters. The clay minerals, represented by illite/smectite and chlorite, are typical ...
    ... The Upper Miocene Kovin sedimentary sequence consists of shallow, caspi­brackish to fresh water clastic sediments (sand and silt with thin clay, carbonaceous clay and gravel layers), with three lignite seams, III, II and I (from lowest to highest). Huminite is the prevailing maceral group in the three ...

  • Geochemical characterization of sediments from the archaeological site Vinča – Belo Brdo, Serbia

    Gorica Veselinović, Dragana Životić, Kristina Penezić, Milica Kašanin-Grubin, Nevenka Mijatović, Jovana Malbašić, Aleksandra Šajnović (2020)
    Earth-Surface Processes

  • Some examples of interactions between certain rare earth elements and soil

    Zlatko Nikolovski, Jelena Isailović, Dejan Jeremić, Sabina Kovač, Ilija Brčeski (2021)
    Freundlich adsorption isotherm, sequential extraction, metallic ions, ICP-OES
    ... nm 15.4178 Scan range, 2  o 2 – 70 Step size, 2  o 0.01 Time constant, o / min 10 Scan range (clay minerals), 2  o 2 – 30 Step size (clay minerals), 2  o 0.01 Time constant (clay minerals), o / min 5 Acce pted M anuscr ipt INTERACTIONS OF RARE EARTH ELEMENTS AND SOIL 3 ...
    ... humus and clay content, hygroscopic moisture content, pH value and soil sorption capacity have been presented in Table III. Table III. Display of hygroscopic moisture, humus, clay and sand content, soil sorption capacity and pH. Soil type Content, % q / mg g-1 pH Moisture Humus Clay Sand La ...
    ... sand soil (c), for gadolinium ions on clay (b) and sand soil (d) and for erbium ions on sand soil (e) Acce pted M anuscr ipt 8 NIKOLOVSKI et al. Table V. Parameters for Freundlich adsorption isotherms. Sample name n kf La- clay soil 6.11 90.14 Gd- clay soil 2.07 6.39 La- sand soil 1.84 ...

  • Terminology Acquisition and Description Using Lexical Resources and Local Grammars

    Cvetana Krstev, Ranka Stanković, Ivan Obradović, Biljana Lazić (2015)
    Acquisition of new terminology from specific domains and its adequate description within terminological dictionaries is a complex task, especially for languages that are morphologically complex such as Serbian. In this paper we present an approach to solving this task semi-automatically on basis of lexical resources and local grammars developed for Serbian. Special attention is given to automatic inflectional class prediction for simple adjectives and nouns and the use of syntactic graphs for extraction of Multi-Word Unit (MWU) candidates for ...
    ... bilingual thesaurus of geologi- cal terms in Serbian and their English equiva- lents (Stankovic et al., 2011), divided in several subdomains: petrology, mineralogy, hydrogeolo- gy, geophysics, structural geology etc. RudOnto is covering the larger area of mining engineering and mine safety terminology (Stankovic ...
    ... less specific terminology of the two other termbases. Two examples from RudOnto can illustrate this: a term for employee position “Geologist for mineralogy, petrology, sedimentology and geochemical research” and a term for technical characteristics of machines “Length of the caterpillar transporting ...

  • Clockwise vertical-axis rotation in the West Vardar zone of Serbia: Tectonic implications

    Vesna Lesić, Emo Márton, Violeta Gajić, Dragana Jovanović, Vesna Cvetkov (2018)
    The Vardar-Tethyan mega-suture between the Eurasian and Adria (Gondwana) margins comprises remnants of oceanic lithosphere of Neotethys and distal parts of the adjacent continental margins including unconformable Late Cretaceous sedimentary cover and Cenozoic igneous rocks of post-obduction age. This study provides kinematic constraints for displacements and rotations affecting the Serbian part of the West Vardar and Jadar-Kopaonik units after the closure of the Neotethyan (= Sava) Ocean. The targets of the paleomagnetic research were Late Cretaceous sediments representing an ...
    Paleomagnetism, Clockwise rotation, Dinarides, West Vardar zone
    ... 11000, Serbia 2 Paleomagnetic Laboratory, Mining and Geological Survey of Hungary, Columbus utca 17-23, Budapest 1145, Hungary 3 Department of Mineralogy, Crystallography, Petrology and Geochemistry, Faculty of Mining and Geology, University of Belgrade, Djušina 7, Belgrade 11000, Serbia 4 Department ...
    ... zone of Serbia: tectonic implications 205 many steps as was necessary, to define the components of the NRM. In order to control the magnetic mineralogy, Curie- points were determined on selected samples from the igneous rocks (KLY-2 combined with CS-1 or CS-3 both from AGICO). Lowrie-experiments ...
    ... except for site 32, where the magnetic mineral, according to the demagnetization curve (Fig. 7, specimen 3548B) of the NRM as well as the magnetic mineralogy experiment (Lesić et al. 2013) is hematite. In contrast to the daci- toandesites, most granodiorites were unsuitable to provide stable NRM. ...

  • Polyhedral characteristics of the cosalite-type crystal structures

    Sabina Kovač, Predrag Dabić, Aleksandar Kremenović, Aleksandar Pačevski, Ljiljana Karanović, Marko V. Rodić, Martina Tribus (2019)
    kristalna struktura, kozalit, poliedarske karakteristike

  • Comprehensive Profiling of Microbiologically Induced CaCO3 Precipitation by Ureolytic Bacillus Isolates from Alkaline Soils

    Olja Šovljanski, Lato Pezo, Jovana Stanojev, Branimir Bajac, Sabina Kovač, Elvira Tóth, Ivan Ristić, Ana Tomić, Aleksandra Ranitović, Dragoljub Cvetković, Siniša Markov (2021)
    MICP process, kinetic study, calcite, vaterite, MALDI-TOF identification, Bacillus licheniformis, Sporosarcina pasteurii
    ... Zorana Ðind̄ića 1, 21000 Novi Sad, Serbia; jovana.stanojev@biosense.rs (J.S.); branimir.bajac@biosense.rs (B.B.) 4 Department of Crystallography and Mineralogy, Faculty of Mining and Geology, University of Belgrade, Ðušina 7, 11000 Belgrade, Serbia; sabina.kovac@rgf.bg.ac.rs 5 Department of Physics, Faculty ...
    ... Zorana Dindiéa 1, 21000 Novi Sad, Serbia; jovana.stanojev@biosense.rs (J.S.); branimir.bajac@biosense.rs (B.B.) Department of Crystallography and Mineralogy, Faculty of Mining and Geology, University of Belgrade, Du8ina 7, 11000 Belgrade, Serbia; sabina.kovac@rgf.bg.ac.rs Department of Physics, Faculty ...
    ... in Section 2.5.1. during the incubation period, the samples were tested after the first and the last day of the incubation period. To analyze the mineralogy of the samples, X-ray powder diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR) techniques were performed using an XRD diffractometer ...

  • Отпад из процеса сагоревања угља као сировина за добијање елемената ретких земаља

    Бојан Земљак (2024)
    Због великог броја индустрија у којима се користе ови ресурси, глобална економија се у великој мери ослања на елементе ретких земаља. Елементи ретких земаља су есенцијална сировина — материјал за развој савремених технологија, али у односу на њихову огромну потражњу, њихово вађење је ограничено и повезано је са значајним утицајима на животну средину. Због њихове ограничене доступности, проблема који се јављају при процесима експлоатације, све више и више земаља почиње да тражи повољније могућности вађења елемената [REE] из секундарних ...
    Елементи ретких земаља, резерве, употреба, представници и методе опоравка елемената ретких земаља
    ... Overview of mining, mineralogy, uses, sustainability and environmental impact. Resources, 3(4), p.614-635. Ta6ena 0poj 2. Osa ma6ena je npeyaema u3 useopa (Racma6ak npemxooOne ma0ene): (Haque, N., Hughes, A., Lim, S. and Vernon, C., 2014). Rare earth elements: Overview of mining, mineralogy, uses, sustainability ...
    ... oceTJbHBH (boc(bop Osa ma0exna je npeyaema u3 u3eopa: (Haque, N., Hughes, 4., Lim, S. and Fernon, C., 2014). Rare earth elements: Overview of mining, mineralogy, uses, sustainability and environmental impact. Resources, 3(4), p.614-635. 13 Taoena Opoj 2. TađenapHu npuka3 noO0amaKka O eneMHmuMa pemkux ...
    ... npeysema u3 u3s6opa (Racmasak npemxooOHe ma0ene): (Haque, N., Hughes, A., Lim, S. and Vernon, C., 2014). Rare earth elements: Overview of mining, mineralogy, uses, sustainability and environmental impact. Resources, 3(4), p.614-635. TOKOM mnepuHojna 20-or BeKa eJIeMeHTH peTKHX 36MAaJba Cy CC CKCI ...

  • An arid phase in the Internal Dinarides during the early to middle Miocene: Inferences from Mg-clays in the Pranjani Basin (Serbia)

    N. Andrić-Tomašević, V. Simić, O. Mandic, D. Životić, M. Suárez, E. García-Romero (2020)
    Paleontology,Earth-Surface Processes,Ecology, Evolution, Behavior and Systematics,Oceanography

  • Sastav i teksture minerala FeO-Fe2O3-TiO2 sistema u vulkanskim stenama i porfirskim ležištima bakra Borske metalogenetske zone

    Aleksandar Luković (2021)
    Proces obrazovanja minerala iz sistema FeO-Fe2O3-TiO2 u uzorcima vulkanskih stena i porfirskih orudnjenja borske zone prikazan kroz pojavu magnetita/hematita i njihovih alteracija. Minerali ove zone su ispitivani optičkim metodama (odbijena i propuštena svetlost), SEM-EDS/BSD, XRPD, LA-ICP-MS metodama. Rezultati ispitivanja su, pored glavnih Fe – Ti oksida, otkrili prisustvo ferijskog ilmenita u hornblenda andezitima I vulkanske faze kao i magnetita sa većim koncetracija Cr u zoni zlotske magnetne anomalije. Ispitivanje uzoraka iz bušotina porfirskih sistema borske zone otkriva postojanje nekoliko ...
    magnetit, hematit, hemoilmenit, Borska metalogenetska zona, porfirska ležišta
    ... hematite, hemoilmenite, Bor metallogenic zone, porphyry deposits Scientific field: Geosciences Scientific subfield: Fundamental and Applied Mineralogy UDC number: 549.73:553.53(497.11)(043.3). ZAHVALNOST Zahvalnost dugujem Univerzitetu u Beogradu i ...
    ... O,. (1991): Fe-Ti oxide geothermometry: thermodynamic formulation and the estimation of intensive variables in silicic magmas. Contributions to Mineralogy and Petrology, 108(4), 485–510. Goodenough, J. B., (1967): Narrow-band electrons in transition-metal oxides. Czechoslovak Journal of Physics ...
    ... , S., (1999): K-Ar dating of the Upper Cretaceous magmatic rocks and hydrothermal metasomatic rocks from the Central Srednogorie. Geochemistry, Mineralogy and Petrology, 36, Sofia, 77-91. Lindsley, D. H., (1962): Investigations in the system FeO-Fe2O3-TiO2. Yb. Carnegie Instn. Wash. 61, 100-6. ...

  • Remedijacija otpadnih voda Rudnika prirodnim zeolitom

    Igor Veličković (2024)
    U radu je razmatrano prečišćavanje otpadnih flotacijskih voda sa područja rudnika Rudnik prirodnim zeolitskim tufom sa planine Jastrebac. Prečišćavanje otpadnih flotacijskih voda sa područja rudnika Rudnik prirodnim zeoliskim tufom sa obronaka planine Jastrebac pokazala se veoma efikasnom. Naime, u tri otpadne flotacijske vode utvrđen je povišen sadržaj arsena, hroma, gvožđa, mangana, kao i nikla. Jednostavnim tretmanom zeolitskim tufom iz ovih voda uklonjeni su svi ovi elementi. Sadržaji gvožđe i mangana su sniženi od 95 do 99 %, dok su ...
    flotation waste water, zeolite tuff, purification
    ... Cvetkovic, Lj, 2006. Mineralogy of W-Pb-Bi ores from Rudnik Mt., Serbia. Neues Jahrbuch fuir Mineralogie-Abhandlungen/ J. Mineral. Geochem. 182/3, 299—306. Stojanović, J.N., Radosavljević-Mihajlović, A.S., Radosavljević, S.A., Vuković, N.S., Pačevski, A.M., 2016. Mineralogy and genetic characteristics ...

  • Agates of the Lece Volcanic Complex (Serbia): Mineralogical and Geochemical Characteristics

    Zoran Miladinović, Vladimir Simić, Nenad Nikolić, Nataša Jović Orsini, Milena Rosić (2024)
    Agate veins and nodules occur in the Lece Volcanic Complex (Oligocene-Miocene) situated in the south of Serbia and occupying an area of 700 km2. This volcanic complex is composed predominantly of andesites, with sporadic occurrences of andesite-basalts, dacites and latites, and features agate formations that have been very little investigated. This study focuses on five selected agate occurrences within the Lece Volcanic Complex, employing optical microscopy, scanning electron microscopy (SEM), X-ray powder diffraction analysis, inductively coupled plasma mass spectrometry ...
    Lecki vulkanski kompleks, andeyit, kalcedon, kvarc, opal-CT, mikrostruktura, organska materija

  • Granatski amfiboliti Bistrice

    Jovana Opančina (2024)
    Predmet ispitivanja ovog završnog rada su granatski amfiboliti Bistrice. Izvršena su petrografska i hemijska ispitivanja s ciljem da se odredi stepen metamorfizma, protolit ispitivanih stena i P-T uslovi nastanka. Ispitivani granatski amfiboliti geografski pripadaju Prijepolju, tačnije nalaze se na ulasku u Prijepolje, mesto Bistrica. Geološka građa obuhvata uglavnom mezozojske tvorevine među kojima se nalaze sedimentne, magmatske i metamorfne stene. Geološki procesi koji su doveli do stvaranja amfibolita su procesi subdukcije i obdukcije koji su se pretpostavljamo dešavali na većim ...
    granatski amfiboliti, Bistrica, elektronska mikrosonda, polarizacioni mikroskop

  • Arsenopirit iz rudnih ležišta Šumadijsko-kopaoničke oblasti: paregeneza, sastav i produkti oksidacije

    Ivana N. Jelić (2023)
    Arsenopirit, FeAsS je čest pratilac polimetaličnih orudnjenja Šumadijsko-kopaoničke oblasti. Jedan je od sulfida koji u najvećoj meri koncentriše zlato. Nepoželjan je u rudama jer njegovom oksidacijom na jalovištima može doći do oslobađanja arsena koji spada u elemente toksične za životnu sredinu. U okviru ovog doktorata sistematski su ispitivani arsenopiriti iz različitih stadijuma i tipova orudnjenja rudnih ležišta i mineralizacija Šumadijsko-kopaoničke oblasti (Rudnik, Sastavci, Trepča, Gokčanica – Drenjak i Rujak, Golijska reka i Jurija). Uzorci arsenopirita ispitivani su polarizacionom mikroskopijom ...
    arsenopirit, zlato, skorodit, Šumadijsko-kopaonička oblast, parageneza, zonarnost
    ... LJ., Cvetković, LJ. (2006): Mineralogy of W- Pb-Bi ores from Rudnik Mt., Serbia. N. Jb. Miner. Abh., 182/3, 299-306, Stuttgart, August 2006. Stojanović, N. J., Radosavljević-Mihajlović A. S., Radosavljević, A. S., Vuković, S. N. i Pačevski, M. A. (2016): Mineralogy and genetic characteristics of ...
    ... Zavod, Beograd, 77. Vaughan, D. J. and Corkhill, C. L. (2017): Mineralogy of sulfides. Elements, 13 (2), 81-87. Vesselinov, L. and Kerestedjian, T. (1995): Kinetic aspects of sector zoning in arsenopyrite: a case study. Mineralogy and Petrology, 52, 85-106. Vuković, M. (1964/65): Granitoidna stena ...
    ... arsenopyrite, gold, scorodite, Šumadija-Kopaonik zone, paragenesis, zoning Scientific field: Geosciences Scientific subfield: Fundamental and Applied Mineralogy UDC number: 549.324.62(497.11)(043.3) 2. 3. 4. Opšti deo... 2.1. Opšte karakteristike arsenopirita.......aaaaaaaaaa a aaaaaaaaaa a aaaaaa ...

  • Geodynamics of basins above subducted slabs: An integrated modelling study of tectonics, sedimentation, and magmatism in the Timok Magmatic Complex

    Uros Stojadinovic, Marinko Toljic, Branislav Trivic, Radoje Pantovic, Danica Sreckovic-Batocanin, Nemanja Krstekanic, Bojan Kostic, Milos Velojic, Jelena Stefanovic, Nikola Randjelovic, Maja Males (2024)
    Timok Magmatic Complex, Neotethys subduction, basin geodynamics, analogue modelling

  • Application of a Method for Intelligent Multi-Criteria Analysis of the Environmental Impact of Tailing Ponds in Northern Kosovo and Metohija

    Gordana Milentijević, Blagoje Nedeljković, Milena Lekić, Zoran Nikić, Ivica Ristović, Jelena Đokić (2016)
    flotacijska jalovišta, životna sredina, višekriterijumska analiza, ekologija, Trepča
    ... (SEM). The obtained results are presented in the Table 2 [14]. Mineralogy composition is determined by using X-ray diffractometry whereby the presence of quartz ankerite, pyrite and clay minerals are recorded. The chemical and mineralogy compositions for the water of four tailing waste deposits are similar ...

  • Alpine thermal events in the central Serbo-Macedonian Massif (southeastern Serbia)

    Milorad D. Antić, Alexandre Kounov, Branislav Trivić, Andreas Wetzel, Irena Peytcheva, Albrecht von Quadt (2015)
    General Earth and Planetary Sciences

  • Минерагенија зеолитских туфова Србије

    Vladan Kašić (2018-02-05)
    Лежишта наших зеолитских туфова (Златокоп, Игрош, Јабланица 1, Беочин, Топоница и Сланци) која су овде била предмет детаљних истраживања, просторно и генетски везана су за вулканске и вулканокластичне стене маринских средина сенонске и неогенске старости и језерске седименте неогене старости и настала су као продукт девитрификације вулканског стакла.Током лабораторијских испитивања при изради ове докторске дисертације, примењене су следеће аналитичке методе: оптичка испитивања петрографских препарата; рендгенска дифракција праха (XRD); скенирајућа електронска микроскопија (СЕМ метода); хемијска карактеризација зеолитских туфова у оквиру ...
    минерагенија, зеолитски туф, Србија, клиноптилолит, хојландит
    ... studied by tapping-mode atomic force microscopy and high-resolution thermogravimetric analysis, Clays Clay Min. 45, 42-53. Surdam, R.C., (1977): Zeolites in closed hydrologic systems: in Mineralogy and Geology of Natural Zeolites, F. A. Mumpton, ed., Short Course Notes 4, Mineralogical Society ...
    ... (1969):Zeolite in the clays of Japan-International Clay Conference, Tokio, Japan Geol. Survey, 121-134. Ming D. W., Dixon J. B., (1987): Quantitative determination of clinoptilolite in solis by cation-exchange capacity method. Clays and Clay Minerals, 35, 6, 463-468. Ming D. W., Mumpton, F. ...
    ... Proceedings of the Sofia Zeolite Meeting Natural Zeolites, Sofia 95’, 241-249. Dimitrijević R., Tomašević-Čanović M., Mojić S., Obradović J. (1997): Mineralogy and geology of zeolitized tuff from the deposite Igroš near Brus, Yugoslavia, 5th International Conference on the Occurrence, Properties and ...

  • Efikasnost različitih tipova glina Srbije za adsorpciju metilen plavog

    Maja D. Milošević (2016-12-09)
    Adsorpciona efikasnost različitih uzoraka glina sa lokaliteta Srbije određenaje njihovim tretiranjem različitim koncentracijama rastvora metilen plavog (MP).Detaljna mineraloška karakterizacija ispitivanih glina i rezultati njihove interakcijesa rastvorima MP dobijeni su primenom optičkih, rendgenskih, hemijskih, DTA ispektroskopskih metoda.Na osnovu formiranja MP agregata u izmenljivim pozicijama i površiničestica gline, razlikuju se dva tipa glinovitih minerala: visoko naelektrisani(smektiti) i nisko naelektrisani (kaoliniti). Dimeri se stvaraju na naelektrisanimpovršinama, a granica njihovog razvoja omogućuje determinaciju mineralne vrste.Molekuli MP stoje pod uglom od 21.5o kada se ...
    minerali glina, metilen plavo, kristali metilen plavog, difuznarefleksija, adsorpcija, flokulacija, naelektrisanje slojeva
    ... and Theng B.K.G. 2006. Structures and mineralogy of clay minerals. Handbook of Clay Science, Developments in Clay Science, Elsevier Ltd. 1: 19 - 86 Brown G. (Eds). 1961. The x-ray identification and crystal structures of clay minerals, Miner. Soc. (Clay Miner. Group), London, pp. 544 https ...
    ... 384 Grim R.E. 1968. Clay Mineralogy, 2nd ed. Mc-Graw-Hill, New York, pp. 407-410 Guggenheim S. and Martin R. T. 1996. Reply to the comment by D.M. Moore on "Definition of clay and clay mineral". Joint report of the AIPEA and CMS nomenclature committees. Clays and Clay Minerals 44: 713 - 715 ...
    ... and Clay Minerals 45: 77 - 84 Gessner F., Schmitt C.C and Neumann M.G. 1994. Time-dependent spectrophotometric study of the interaction of basic dyes with clays. 1. Methylene blue and neutral red on montmorrillonite and hectorite. Langmuir 10: 3749 - 3753 Grim R.E. 1953. Clay Mineralogy. Mc ...