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Упит dcterms_subject_txt:hard rock

327 items

  • Палеомагнетски резултати из Тимочког магматског комплекса, Источна Србија

    Весна Лесић, Емо Мартон, Драган Лукић, Весна Цветков (2018)
    ... gnetic data. Geophy‐ sical Journal of the Royal Astronomical Society, 62, 699–718.  Lowrie, W., 1990. Identification of feromagnetic minerals in a rock by coercitive and unblocking tempe‐ rature properties. Geophys. Res. Lett., 17, 159–162.  Luković, A.,  Zavašnik,  J., Vulić,  P., Banješević, M.,  ...

  • Novi pristup proučavanju tekstura minerala značajnih za istraživanje rudnih ležišta

    Aleksandar Pačevski (2022)
    ... determination: trends and achievements Miloš Marjanović, Analiza odrona u stenskim kosinama: savremeni pristupi Miloš Marjanović, Rockfalls analysis in rock slopes: state-of-the-art approaches Aleksandar Pačevski, Novi pristup proučavanju tekstura minerala značajnih za istraživanje rudnih ležišta Aleksandar ...

  • English for Geology Students. 1

    Lidija Beko (2023)
    Engleski jezik
    ... Geomagnetician............... 116 Geology Mystery Files ... a 117 Geology through Myths.............c. 120 Table of contents • Unit5 • ROCK CYCLE, IGNEOUS ROCKS AND VOLCANOES Partl ROCKCYCLE........ ttt tttv 126 Vocabulary....n.MOORe. ... o - W ... .. NEO 128 Reading Comprehension. ...

  • Integrated Stratigraphy of the Middle–Upper Jurassic of the Krížna Nappe, Tatra Mountains

    Renata Jach, Nevenka Đerić, Špela Goričan, Daniela Reháková (2014)
    carbon and oxygen isotopes, radiolarians, calcareous dinoflagellates, radiolarites, Krížna Nappe, West ern Carpathians, Tethys
    ... 71—76. Marshall, J. D., 1992. Climatic and oceanographic isotopic signals from the carbonate rock record and their preservation. Geo- logical Magazine, 129: 143—160. Michalik, J., 2007. Sedimentary rock record and microfacies indi- cators of the latest Triassic to mid-Cretaceous tensional de- ...
    ... Vidla P Belianske Tatra Mts, Slovakia. N49"14.588'; E20?12.636' calpionellid biostratigraphic scheme, proposed by Rehakova (2002), were adopted. The rock samples and the thin sections are stored at the Institute of Geological Scicnces, Jagiellonian University in Krakow. For the radiolarian analyses ...
    ... re- peatability ofNBSl9 ana1y51s and occurred better than 0.07 and 0.12%o, for 612C and 6!SO, respectively. The calcium carbonate content of 376 rock samples was estimated by means of a calcimetre by Eijkelkamp, which Works in accordance with the method of Schcibler. The ana- lysis of CaCOy3 ...

  • Петрологија црвених пешчара источне Србијe

    Андреј Марковић (2024)
    У источној Србији формација црвених пешчара има велико распрострањење и улази у састав многих планина овог дела наше земље. Формацију чине кластичне стене интензивно црвене боје псамитске, ређе псамитско-псефитске структуре и алевритске структуре. Ове стене леже трансгресивно преко старијих пермо-карбонских и карбонских стена, док навише прелазе у доњотријаске седименте. Формација црвених пешчара захвата два појаса унутар Карпато-балканида – унутрашњи и средишњи део. Узорци анализирани у овом раду део су средишњег појаса. Тема завршног рада је петрологија црвених пешчара источне ...
    источна Србија, црвени пешчар, петролошко-минералошке карактеристике, аркозе
    ... and petrological-mineralogical parameters, analyzed sandstones are defined as siltstone sandstones-arkoses. They are built of quartz, feldspar, rock fragments, micas and binders. According to size, degree of roundness and sorting, they are determined as fine-grained medium-sorted sandstones-siltstone- ...
    ... KHceJIHHe (1:3) panu onpeljuBapba npucycrBa Kammara. boja y3opka je ojpeljaBaHa Ha JIHECBHOJ CBETJIOCTH ynopebuiBambeM ca craHnapnuMa rpeMa Munse// Rock-Color Book (Geological Society of 4merika, 2014, Cnaka 3). Cnuka 3. Crpanuna Mance:nopor karanora Goja HakoH MaKPpOCKOHCKe aHaJIH3c CTeHa, KOJOM ...

  • Upper Miocene depositional environments of the Kikinda-Mokrin High (Serbia)

    Saša Ivanišević, Dejan Radivojević (2018)
    Exploration for oil and gas in mature areas, such as the Pannonian Basin, can benefit from reexamination of old data using more advanced modern workflows that focus on the temporal and spatial aspects of sediment deposition. Specifically, we apply a new environment of deposition model that interprets the Upper Miocene- Pliocene sediments as being deposited in a rapidly filling basin characterized by quick shelf edge progradation from the northwest toward the southeast. Reconstruction of this shelf edge trajectory reveals ...
    naftna geologija, depozicione sredine, formacije, Panonski basen

  • 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

  • Model predviđanja potresa od miniranja na površinskim kopovima primenom simulacione metode Monte Karlo i fazi logike

    Milanka N. Negovanović (2015-06-30)
    Modeliranje predviđanja potresa tla od miniranja primenom fazi logike i metode MonteKarlo zasnovano je na podacima dobijenim terenskim merenjima potresa uzrokovanihminiranjem. Promenljive modela definisane su analizom parametara bušenja i miniranjaminskih serija, kao i velosigrama izmerenih potresa od miniranja. Iskorišćene suprednosti fazi logike u implementaciji mnogo većeg broja ulaznih i izlaznih veličina zamodeliranje u odnosu na postojeće empirijske modele. Na osnovu identičnih podataka,dobijen je regresioni model predviđanja potresa, da bi se izvršilo testiranje novogmodela. U cilju povećanja pouzdanosti modela predviđanja, ...
    model, predviđanje potresa, miniranje, površinski kop, Monte Karlo, fazilogika, regresiona analiza, FFT analiza, spektri odziva, pomeraj pukotina
    ... Petkof, B., Spherical propagation of explosion-generated strain pulses in rock, USBM RI 5483, 1959. 5. Ambraseys, N. R., Hendron, A. J., Dynamic behaviour of rock mass, (eds. K. G. Stagg and O. C. Zienkiewics), Rock mechanics in engineering practices, London, John Wiley, 1968, 203-207. 6 ...
    ... to prevent rock damage, Proc. Tunnelling '79, 1979. 10. Shoop, S.A., Daemen J.J.K, Site-specific predictions of ground vibrations induced by blasting, In: Paper presented at the AIME spring meeting, Atlanta, March 1983. 11. Langefors, U., Kihlstrom, B., The modern techniques of rock blasting, New ...
    ... account the complexity of prediction of blast-induced vibrations as well as a certain degree of uncertainty associated with the characteristics of rock mass, the Monte Carlo model has been applied to determine the frequency of occurrence of ground vibration critical values for the specific blasting ...

  • Model predviđanja potresa od miniranja na površinskim kopovima primenom simulacione metode Monte Karlo i fazi logike

    Milanka N. Negovanović (2015-06-30)
    Modeliranje predviđanja potresa tla od miniranja primenom fazi logike i metode MonteKarlo zasnovano je na podacima dobijenim terenskim merenjima potresa uzrokovanihminiranjem. Promenljive modela definisane su analizom parametara bušenja i miniranjaminskih serija, kao i velosigrama izmerenih potresa od miniranja. Iskorišćene suprednosti fazi logike u implementaciji mnogo većeg broja ulaznih i izlaznih veličina zamodeliranje u odnosu na postojeće empirijske modele. Na osnovu identičnih podataka,dobijen je regresioni model predviđanja potresa, da bi se izvršilo testiranje novogmodela. U cilju povećanja pouzdanosti modela predviđanja, ...
    model, predviđanje potresa, miniranje, površinski kop, Monte Karlo, fazilogika, regresiona analiza, FFT analiza, spektri odziva, pomeraj pukotina
    ... Petkof, B., Spherical propagation of explosion-generated strain pulses in rock, USBM RI 5483, 1959. 5. Ambraseys, N. R., Hendron, A. J., Dynamic behaviour of rock mass, (eds. K. G. Stagg and O. C. Zienkiewics), Rock mechanics in engineering practices, London, John Wiley, 1968, 203-207. 6 ...
    ... to prevent rock damage, Proc. Tunnelling '79, 1979. 10. Shoop, S.A., Daemen J.J.K, Site-specific predictions of ground vibrations induced by blasting, In: Paper presented at the AIME spring meeting, Atlanta, March 1983. 11. Langefors, U., Kihlstrom, B., The modern techniques of rock blasting, New ...
    ... account the complexity of prediction of blast-induced vibrations as well as a certain degree of uncertainty associated with the characteristics of rock mass, the Monte Carlo model has been applied to determine the frequency of occurrence of ground vibration critical values for the specific blasting ...

  • Uporedna analiza stabilnosti završnih kosina površinskog kopa „Veliki Krivelj“

    Mihajlo Topalović (2023)
    Površinski kop „Veliki Krivelj“ nalazi se u blizina grada Bora i u neposrednoj blizini sela Krivelj. Od 2018. godine je u vlasništvu kineske kompanije „Zijin“ koja ima udeo od 63% vlasništva celokupnog RTB-a Bor. Na površinskom kopu obavlja se masovna eksploatacija rude bakra opremom visokog kapaciteta. Za bušenje se koriste bušilice prečnika od 250 do 310 mm, a za utovar minirane rude i jalovine bageri čija je zapremina kašike 15 m3 i 22 m3. Za površinski kop „Veliki Krivelj“ ...
    stabilnost kosina, metoda konačnih elemenata, površinski kop, Veliki Krivelj, završna kosina

  • Testing the energy value of different types of coal by the method of active thermography

    Stevan Đenadić, Ljubiša Tomić, Vesna Damnjanović, Predrag Jovančić, Dragutin Jovković (2020)
    In this paper, coal thermograms are presented and analyzed in order to determine their energy value. Two types of coal of different categories, brown and lignite, were selected for active thermographic imaging. The tested coal samples were processed before measurement so that they are similar in dimensions and have two plane-parallel smooth surfaces. The test samples were "primarily" heated under the same conditions and the process of their cooling was monitored by a thermal camera. "Then" they were cooled ...
    Infrared imaging, nondestructive testing, active thermography, coal.

  • Trans-Lithospheric Diapirism as a Possible Mechanism for Ophiolite Emplacement?

    Nikola Stanković, Taras Gerya, Vladica Cvetković, Vesna Cvetkov (2024)

  • 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
    ... (1 and 2) exposed two types of limestones containing cherts. One is an autochthonous micritic limestone (Folk 1959, 1962) which is the indigenous rock (whitish, greyish colour) deposited in a pelagic environment. It contains an Upper Campanian-Lower Maastrichtian globotruncanid associa- tion (Gajić ...
    ... & Jelı́nek, V. (2008). Anisoft 4.2.—Anisotropy data browser. Contributions to Geophysics and Geodesy, 38, 41. Collinson, D. W. (1983). Methods in rock magnetism and palaeo- magnetism, techniques and istrumentation (p. 503). London: Chapman and Hall. Cvetkov, V., Lesić, V., & Vasković, N. (2012) ...
    ... Gora, Serbia. Annales geologiques de la Peninsule Balkanique, 73, 99–108. Cvetković, V., Karamata, S., Knežević-Ðord̄ević, V. (1995). Vol- canic rock of the Kopaonik area. [Savetovanje ‘‘Geologija i metalogenija Kopaonika’’]. Republički društveni fond za geo- loškaistraživanja Srbije, 19—22 ...

  • Concepts for Improving Machine Learning Based Landslide Assessment

    Miloš Marjanović, Mileva Samardžić Petrović, Biljana Abolmasov, Uroš Đurić (2019)
    Katastar klizišta, Podložnost, Hazard, Mašinsko učenje, Uzorkovanje, Validacija

  • Machine learning based landslide assessment of the Belgrade metropolitan area: Pixel resolution effects and a cross-scaling concept

    Uroš Đurić, Miloš Marjanović, Zoran Radić, Biljana Abolmasov (2019)
    Improvements of Machine Learning-based landslide prediction models can be made by optimizing scale, customizing training samples to provide sets with the best examples, feature selection, etc. Herein, a novel approach, named Cross-Scaling, is proposed that includes the mixing of training and testing set resolutions. Hypothetically, training on a coarser resolution dataset and testing the model on a finer resolution should help the algorithm to better generalize ambiguous examples of landslide classes and yield fewer over/underestimations in the model. This ...
    klizišta, podložnost, mašinsko učenje

  • Inženjerskogeološka istraživanja za potrebe izgradnje tunela T1 na putnom pravcu Požega-Kotroman

    Andrija Popović (2024)
    Tokom izrade završnog rada korišćeni su podaci koje sam dobio u saradnji sa firmom „Saobraćajni institut CIP d.o.o.“, kao i ostala odgovarajuća stručna literatura.Osnovni cilj pisanja rada jeste definisanje određenih fizičko mehaničkih parametara i predlog podgrade i načina iskopa tunela na osnovu RMR klasifikacije.
    stenska masa, RMR klasifikacija, tunel, inženjerskogeološka istraživanja
    ... orijentaciono odrediti mere zaštite (podgrade) iskopa. ROCK CLASSES G F Exceptionally Extremely 100 | [-] HS 3 10 j ul ul ul Bu ej lo g ı Span or h ei gh t i n m E S R 0.001 0.004 0.01 L . I 1000 ROD J O Rock mass quality O= - KNL J—'· x S_:F REINFORCEMENT CATEGORIES: ...
    ... A N J A P R A G M E N A T A Slika br. 4. – Osnovni GSI dijagram (Hoek i Brown, 1997) 4.1 RMR KLASIFIKACIJA Geomehanička klasifikacija (eng. Rock Mass Rating (RMR) System) predstavljena je od strane Bieniawskog u više navrata. Bieniawski (1973, 1979, 1989, 2011, 2013, 2014) je razvio ceo ovaj ...
    ... Rudarsko-geološki fakultet, univerzitet u Beogradu 4.5. RMQR klasifikacija Aydan i dr. (2013) uvode modifikaciju RMR klasifikacije tzv. RMQR (Rock MassQuality Rating), kako bi uključili sopstvena iskustva prilikom izvođenja radova u stenskim masama u Japanu. Pomoću ove klasifikacije moguće ...

  • Towards Better Valorisation of Industrial Minerals andRocks in Serbia—Case Study of Industrial Clays

    Vladimir Simić, Dragana Životić, Zoran Miladinović (2021)
    Management, Monitoring, Policy and Law,Nature and Landscape Conservation
    ... refractory and ceramic clay deposits of Serbia. K—kaolinite, I—illite, S—smectite, IS—interstratified illite-smectite. Industrial Type of Clay Parent Rock Deposit Typical Clay Minerals Refractory (carbonaceous) Granite Lazine K Ceramic and refractory Granite Ćirinac, Bukovik K Ceramic Granite ...
    ... exploration works and the maximum length of sampling interval. Tables 4 and 5 show the recommended distances from the basic classi- fication of clay rock reserves of the USSR from 1961 [54], which remained unchanged in the classification of the Russian Federation from 2007 [55], and the maximum allowed ...
    ... between exploration works for clay deposits (Table 4) represent for that time, but still today, the most rational basic concept for exploration of clay rock deposits, regardless of the area of application. 2. In the Serbian Rulebook [52] on the exploration of kaolin deposits (Table 5), the dis- tances ...

  • Srbija u OneGeology Europe

    Danka Blagojević, Ranka Stanković, Petar Stejić, Velizar Nikolić (2014)
    Геолошки завод Србије као носилац Пројекта ОneGeologyEurope заједно са Рударско геолошким факултетом и Министарством за природне ресурсе, рударство и просторно планирање су се укључили у међународни Пројекат OneGeology Europe у мају 2013. године у већ поодмаклој фази израде Пројекта. До краја 2013. године испунили су завршене активности које треба да доведу до пуноправног укључења у Пројекат чиме је Република Србија нашла своје место на Геолошкој карти Европе 1:1М. Геолошка карта Србије 1:1М представља компилациону односно поједностављену верзију ОГК 1:500 ...
    OneGeologyEurope, метаподаци, хармонизација података, вишејезични мета-информациони систем
    ... onegeology.org/ http://pubs.usgs.gov/of/2007/1285/pdf/Richard.pdf Struik, L.C. Quat, M.B. Davenport, P.H. and Okulitch, A.V. (2002): Multi-hierarchical rock classification for use with thematic computer-based query systems, a preliminary scheme. Geological Survey of Canada, Current Research 2002D, 9 ...
    ... ‘06, 47-59, http://pubs.usgs.gov/of/2007/1285/pdf/Richard.pdf Struik, L.C. Quat, M.B. Davenport, P.H. and Okulitch, A.V. (2002): Multi-hierarchical rock classification for use with thematic computer-based query systems, a preliminary scheme. Geological Survey of Canada, Current Research 2002D, 9 p. Тривић ...
    ... oranic rocks alte +trachytic 112232tlqupt3 [ps |2234 40 Pliocene __Quarizaites and trachiandesites; a-pyroclasites Kvaclatit i trahiandezi,a-piroklast rock+pyroctastic 41 Pliocene Upper Pliocene: gravels and clays Gomi pliocen: siunkoviigline Srednj-gomii pocen: siunkovi, 42Pliocene _Middle-Upper Pliocene: ...

  • Flood protection and water utilization of karst poljes: example of Gatačko Polje, Eastern Herzegovina

    Tina Dašić, Ljiljana Vasić (2020)
    Earth-Surface Processes,Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry,Global and Planetary Change

  • 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